Software Engineer Jobs in Paris

Software Engineer (Python), Institutional

Software Engineer, Frontend

€60,000 - €150,000/yr

About Dust Work is being rewritten, and the people holding the pen are the ones who actually run it. We call them AI operators: the employees inside companies who build, deploy, and run AI agents for their teams, without waiting for someone to hand them a tool. Dust is the platform they choose to rewire how their company works. With 70%+ weekly active users, people stick with Dust as much as they do with Slack and Notion. We don't get piloted and shelved. We land once, and spread. We're at an exciting stage of our journey, and growing fast. We're serving great customers like Datadog, 1Password, Cursor, Clay, and Persona, and aim to x5 our growth by the end of 2026. Dust is backed by Sequoia with a determined team of optimists (coming from Stripe, OpenAI, and Stanford) who like to focus on users, ship fast, and don't take themselves too seriously while doing so. The Generalist named us among the Future 50 . TL;DR We are looking for an experienced frontend engineer who feels comfortable working on backend tasks as needed. In this role, you will collaborate closely with our product designer team, contributing ideas to shape the user experience while implementing features in our React-based frontend. On the backend side, you’ll contribute to REST API work and infrastructure improvements and ensure a smooth developer experience across our codebase. Our culture Product-First : Unlike others focused on building foundation models, we're laser-focused on creating delightful product experiences with existing LLMs. Think “ No GPUs before PMF ”. Small, High-Impact Team : Join a team of alumni from Stripe, Front, OpenAI, and other top tech companies. We're intentionally keeping our team small and mighty – every individual has massive scope and impact. Transparency & Collaboration: Our repository is open source, and we leverage serendipity between team members. We believe the best ideas emerge when the team shares information and insights openly. Proactive Problem-Solving : If you see something broken, fix it—without waiting for permission. We don't wait for solutions - we create them. Ship to Learn : We move fast and learn from real user feedback. Intellectual Humility : We value strong convictions balanced with open-mindedness. Team members confidently advocate for their ideas while remaining receptive to new perspectives and evidence that might change their minds. If new data emerges, we adapt quickly. What you’ll do Create delightful frontend experiences end-to-end: Design and implement visually engaging interfaces that define how users interact with Dust. Frame and lead frontend technical projects to completion: Balance performance, accessibility, and maintainability—all with a full-stack perspective in mind. Collaborate closely with users and product designers: Brainstorm interface solutions, gather feedback, and iterate rapidly to build delightful user experiences. Build for scale: Architect frontend systems that gracefully handle increasing complexity while preserving simplicity and speed. Champion best practices: Advocate for code quality, guide our design system’s evolution, and ensure every feature meets high standards of excellence. Dive into the backend: Use Next.js (Node/TypeScript) to handle REST APIs, data retrieval, and integration tasks. Tech Stack Highlights Dust for Dust: We use Dust for Coding, debugging, knowledge search (runbooks, codebase), incident management, and task automation (i.e., creating issues). Programming languages: TypeScript, Rust (not a requirement, we’re open to people expert in other programming languages). Other relevant tools and technologies: Frontend: React, shadcn Backend: NextJS, Kubernetes, Terraform/Helm Database: PostgreSQL, QDrant, Elasticsearch DevOps: Datadog monitoring, Github actions based CI/CD Benefits & Compensation Competitive compensation: €30K - €150K base salary We offer substantial support for relocation, including a stipend up to €10k, finding an apartment in Paris, and supporting you with all residence and work permit-related procedures Significant equity package in a Sequoia-backed startup Health insurance for you and your dependents New MacBook Pro or Linux machine, monitor, keyboard, etc. Beautiful office in the heart of Paris Opportunity to travel to the US multiple times a year Regular team events and offsite Dust Engineering Salary Grid Regarding compensation culture, we're going to lean towards Netflix's early philosophy: we are happy to review levels and compensation as early and as often as it makes sense to do so, not when the calendar says so. Regarding expectations associated with levels, we're including a very broad definition of each level below. When attributing a level at hiring, the expectation is for you to perform comfortably at this level within your first year. We'll set up catch-up times throughout that first year to keep track of your progress and communicate clearly whether you're matching these expectations. - Level I : Limited prior experience, learning the ropes - Level II : Level I + Autonomy - Level III : Level II + Rigorous dependability - Level IV : Level III + Excellence - Level V : Level IV + Leadership - Level VI : Level V + Impact on company trajectory We can go higher for outstanding profiles. Location We're prioritizing building our team with an in-person culture at our offices in Paris and San Francisco, because we value the magic that happens when talented people work closely together. Why Dust The models are powerful enough. What's missing is the product layer where AI meets how companies actually work. That's what we're building: the infrastructure that lets any team turn scattered knowledge and tools into coordinated execution with agents they build, own, and run themselves. We use Dust ourselves every day. We get to shape how humans and agents collaborate while solving our own problems with the product we ship. That loop is rare, and it's why we move fast. If you're excited about defining a new category and want to join a determined team of optimists who focus on users, ship fast, and don't take themselves too seriously, we'd love to talk. Even if you don't check every box in our requirements, we encourage you to apply. We value diverse perspectives and backgrounds, and we're more interested in your potential and passion than a perfect match to our checklist. Learn how we think and work. Our product constitution, a story about our mission Agents at work - Latent Space , podcast with our cofounder, Stanislas Polu, 2024 LLMs reasoning and agentic capabilities over time - dotAI, podcast with our cofounder, Stanislas Polu, 2024

Software Engineer, Frontend

€60,000 - €150,000/yr

About Dust Work is being rewritten, and the people holding the pen are the ones who actually run it. We call them AI operators: the employees inside companies who build, deploy, and run AI agents for their teams, without waiting for someone to hand them a tool. Dust is the platform they choose to rewire how their company works. With 70%+ weekly active users, people stick with Dust as much as they do with Slack and Notion. We don't get piloted and shelved. We land once, and spread. We're at an exciting stage of our journey, and growing fast. We're serving great customers like Datadog, 1Password, Cursor, Clay, and Persona, and aim to x5 our growth by the end of 2026. Dust is backed by Sequoia with a determined team of optimists (coming from Stripe, OpenAI, and Stanford) who like to focus on users, ship fast, and don't take themselves too seriously while doing so. The Generalist named us among the Future 50 . TL;DR We are looking for an experienced frontend engineer who feels comfortable working on backend tasks as needed. In this role, you will collaborate closely with our product designer team, contributing ideas to shape the user experience while implementing features in our React-based frontend. On the backend side, you’ll contribute to REST API work and infrastructure improvements and ensure a smooth developer experience across our codebase. Our culture Product-First : Unlike others focused on building foundation models, we're laser-focused on creating delightful product experiences with existing LLMs. Think “ No GPUs before PMF ”. Small, High-Impact Team : Join a team of alumni from Stripe, Front, OpenAI, and other top tech companies. We're intentionally keeping our team small and mighty – every individual has massive scope and impact. Transparency & Collaboration: Our repository is open source, and we leverage serendipity between team members. We believe the best ideas emerge when the team shares information and insights openly. Proactive Problem-Solving : If you see something broken, fix it—without waiting for permission. We don't wait for solutions - we create them. Ship to Learn : We move fast and learn from real user feedback. Intellectual Humility : We value strong convictions balanced with open-mindedness. Team members confidently advocate for their ideas while remaining receptive to new perspectives and evidence that might change their minds. If new data emerges, we adapt quickly. What you’ll do Create delightful frontend experiences end-to-end: Design and implement visually engaging interfaces that define how users interact with Dust. Frame and lead frontend technical projects to completion: Balance performance, accessibility, and maintainability—all with a full-stack perspective in mind. Collaborate closely with users and product designers: Brainstorm interface solutions, gather feedback, and iterate rapidly to build delightful user experiences. Build for scale: Architect frontend systems that gracefully handle increasing complexity while preserving simplicity and speed. Champion best practices: Advocate for code quality, guide our design system’s evolution, and ensure every feature meets high standards of excellence. Dive into the backend: Use Next.js (Node/TypeScript) to handle REST APIs, data retrieval, and integration tasks. Tech Stack Highlights Dust for Dust: We use Dust for Coding, debugging, knowledge search (runbooks, codebase), incident management, and task automation (i.e., creating issues). Programming languages: TypeScript, Rust (not a requirement, we’re open to people expert in other programming languages). Other relevant tools and technologies: Frontend: React, shadcn Backend: NextJS, Kubernetes, Terraform/Helm Database: PostgreSQL, QDrant, Elasticsearch DevOps: Datadog monitoring, Github actions based CI/CD Benefits & Compensation Competitive compensation: €30K - €150K base salary We offer substantial support for relocation, including a stipend up to €10k, finding an apartment in Paris, and supporting you with all residence and work permit-related procedures Significant equity package in a Sequoia-backed startup Health insurance for you and your dependents New MacBook Pro or Linux machine, monitor, keyboard, etc. Beautiful office in the heart of Paris Opportunity to travel to the US multiple times a year Regular team events and offsite Dust Engineering Salary Grid Regarding compensation culture, we're going to lean towards Netflix's early philosophy: we are happy to review levels and compensation as early and as often as it makes sense to do so, not when the calendar says so. Regarding expectations associated with levels, we're including a very broad definition of each level below. When attributing a level at hiring, the expectation is for you to perform comfortably at this level within your first year. We'll set up catch-up times throughout that first year to keep track of your progress and communicate clearly whether you're matching these expectations. - Level I : Limited prior experience, learning the ropes - Level II : Level I + Autonomy - Level III : Level II + Rigorous dependability - Level IV : Level III + Excellence - Level V : Level IV + Leadership - Level VI : Level V + Impact on company trajectory We can go higher for outstanding profiles. Location We're prioritizing building our team with an in-person culture at our offices in Paris and San Francisco, because we value the magic that happens when talented people work closely together. Why Dust The models are powerful enough. What's missing is the product layer where AI meets how companies actually work. That's what we're building: the infrastructure that lets any team turn scattered knowledge and tools into coordinated execution with agents they build, own, and run themselves. We use Dust ourselves every day. We get to shape how humans and agents collaborate while solving our own problems with the product we ship. That loop is rare, and it's why we move fast. If you're excited about defining a new category and want to join a determined team of optimists who focus on users, ship fast, and don't take themselves too seriously, we'd love to talk. Even if you don't check every box in our requirements, we encourage you to apply. We value diverse perspectives and backgrounds, and we're more interested in your potential and passion than a perfect match to our checklist. Learn how we think and work. Our product constitution, a story about our mission Agents at work - Latent Space , podcast with our cofounder, Stanislas Polu, 2024 LLMs reasoning and agentic capabilities over time - dotAI, podcast with our cofounder, Stanislas Polu, 2024

Software Engineer (Python), Institutional

Senior Software Engineer, Backend (Rust)

From $100/yr

Looking for someone to join us as one of the early members of the Backend team. In the initial months, you'll be working closely with the team, gradually taking ownership of central components and features. Given our early stage, we're seeking versatile engineers, comfortable contributing to various aspects of the company's foundation. We value team members who delve deep into their respective domains, aiming to cultivate a team of subject matter experts. This commitment to expertise is an expectation of every team member. The backend team at amo is responsible for both server side and the backbone of the client as we believe it makes more sense to have one team handle both ends of the same topics (network, data modelling, management and synchronisation, etc). As a Backend Engineer, your day-to-day will include: Crafting the Future Developing systems that handle massive traffic, data, and an unmatched rate of scaling. Your toolkit? Carefully chosen cutting-edge technologies, code that's practically poetry, and systems that effortlessly scale horizontally. Cross-Platform Harmony In addition to server side development, you will participate in the evolution and maintenance of a Rust component that we share between iOS and Android and that deals mostly with networking, data synchronisation and data-oriented feature logic that benefit from being written just once. You will collaborate with iOS and Android engineers to maintain a unified codebase, enabling consistent experiences across platforms. You’ll also bridge the gap between mobile development and backend infrastructure for a seamless user journey. Feature Development Participating in brainstorming sessions and discussions to design and implement features that set us apart in the market. Continuous Improvement We love learning from each other, staying abreast of industry trends and emerging technologies, bringing fresh ideas to the table. So you'll be contributing to our culture of continuous improvement, where learning and growing are integral parts of the journey. Owning your scope You will be responsible for monitoring analytics and managing system crashes. We value engineers who take ownership of their scope, and proactively address issues and triage bug fixes. Your Skills \& Experience * Production experience with Rust, or strong background in systems-level languages (C++, C, OCaml). * Hands-on experience with distributed systems in production (Kafka, Redpanda, ScyllaDB, Cassandra, or similar). * Strong instincts about consumer social products - what makes them work, what makes them fail. * French isn't required. Neither is perfect English - we'll help you ramp up if needed. Life at amo To ensure that everyone is set up for success within our way of working, we work together onsite 5 days a week. We wanted to make sure coming to the office was as comfortable as possible for you: * We chose a location in central Paris, near Opera (Metro lines 3,8,9 and RER A). * We have a beautiful Parisian-style office with high ceilings, balconies, and huge windows. So a lot of natural light! Because life outside of work should also be stress-free, we cover: We shut down entirely twice a year, two weeks in summer and one week in winter to allow everyone to truly recharge and to avoid prolonged slowdowns (especially in the summer). These pauses are part of your total vacation time, giving everyone a real chance to unplug and recharge. No Slack, no email, no FOMO. * Health care (100% coverage). * Maternity Leave, Paternity Leave, Second Parent Leave (salary maintained at 100%). * Vacation days: 8-9 weeks (total) per year - (European summer? 🥹😎). + 5 weeks of paid time off (by the state); + 1-2 additional weeks (RTT, based on our company contract); + ~11 bank holidays. We love the diverse perspectives we get from having people from all over the world join us (68% of our team is international), and so we of course support relocation to Paris with: * Help and sponsored visa process. * 1 month of Airbnb 100% covered by amo upon arrival. * Assistance from a trusted relocation agency to find your permanent home. * Help with french paperwork like opening a french social security account, tax forms, getting your carte vitale (free healthcare) and more. * French lessons to be fully set with your new Parisian life.

Software Engineer (Python), Institutional

Staff Software Engineer (FinTech) - Back End (Bangkok based, Relocation provided)

From $200/yr

About Agoda At Agoda, we bridge the world through travel. Our story began in 2005, when two lifelong friends and entrepreneurs, driven by their passion for travel, launched Agoda to make it easier for everyone to explore the world. Today, we are part of Booking Holdings [NASDAQ: BKNG], with a diverse team of over 7,000 people from 90 countries, working together in offices around the globe. Every day, we connect people to destinations and experiences, with our great deals across our millions of hotels and holiday properties, flights, and experiences worldwide. No two days are the same at Agoda. Data and technology are at the heart of our culture, fueling our curiosity and innovation. If you’re ready to begin your best journey and help build travel for the world, join us. Get to Know Our Team Fintech is one of the fastest growing areas in Agoda and we are rapidly expanding our tech team. We work closely with the finance business team and our Fintech product owners to reduce risk, drive efficiencies and move on new market opportunities in this exciting field. We have a wide range of projects from traditional finance to cutting-edge customer fintech. For example, reconciliation using Big Data technologies, growing and optimizing customer payments options, tax calculations in milli-second response times and a mesh of supplier payment options like virtual credit cards. It’s a hot field and the perfect mix of data engineering and backend engineering. The Opportunity In this role, you will not only develop robust backend systems but also architect and maintain scalable data pipelines and storage solutions that support complex data collection, processing, and analysis. Your dual expertise in backend and data engineering will play a crucial role in optimizing our financial technology solutions and driving informed business decisions through reliable data insights. In This Role, You’ll Get to * Think and own the full life cycle of our products, not just a single piece of code – from business requirements, technology selection, coding standards, agile development, unit and application testing, to CI/CD and proper monitoring * Design, develop and maintain platforms and data pipelines across fintech * Boost System Performance: build systems that are stable, scalable, and highly performant to meet the dynamic demands of the financial landscape * Write great code and help others write great code – mentor people in your team and wider * Collaborate with other teams and departments * Exceptional problem-solving skills coupled with a strategic mindset are essential. You possess the ability to adapt to new changes and the foresight to anticipate future needs. Leadership at Agoda isn’t just managing tasks but inspiring innovation and driving vision into reality * Foster Cross-Functional Collaboration: work with diverse teams to drive forward product and technology goals * Shape our future team: Play a pivotal role in recruiting and onboarding exceptional talent What You’ll Need To Succeed * 8+ years of experience with strong proficiency in Java, Kotlin, Scala, or C# with a proven track record of developing high-performance applications in production settings. Insightful experience with big data technologies like Hadoop, real-time processing frameworks (e.g., Apache Spark), and advanced knowledge of SQL and data architecture * Thinks in systems: their edge cases, failure modes, and life cycles * Uses a metrics driven approach and can make informed decisions using data * You are passionate about the craft of software development and constantly work to improve your knowledge and skills * Experience with Scrum/Agile development methodologies * Excellent verbal and written English communication skills * Experience with operational excellence and a deep understanding of metrics, alarms and dashboards It’s Great If You Have * Experience working in a modern FinTech or Payments organization * Domain knowledge in any of these areas: financial reconciliation, financial reporting, tax, payout methods like virtual credit cards or customer payments * Hands-on experience working with technologies like Spark for data processing, ETLs for data pipelines and queueing systems (Kafka, RabbitMQ) * Core engineering infrastructure tools like GitLab for source control and Continuous Integration, Kubernetes * Experience developing, maintaining and debugging large-scale distributed systems * Experience in leading projects, initiatives and/or teams, with full ownership of the systems involved This position is based in Bangkok, Thailand (Relocation Provided) #Bengaluru #Hyderabad #Gurgaon #SouthKorea #Berlin #London #Pakistan #Pune #SanFrancisco #SanJose #Seattle #TelAviv #Jakarta #Colombia #NewYork #Vietnam #Russia #Madrid #SaoPaulo #Noida #Toronto #Chennai #Singapore #Ukraine #UAE #Sunnyvale #BuenosAires #Austin #Barcelona #Nigeria #Mumbai #Paris #Egypt #Stockholm #Amsterdam #Romania #Serbia #NewDelhi #MountainView #Chile #Warsaw #Sydney #Bangladesh #Peru #SantaClara #Chicago #Gurgaon #Munich #Montreal #Bangkok #Tallinn #Vilnius #Riga #Dublin #IT #ENG #5 Discover More About Working At Agoda * Agoda Careers https://careersatagoda.com * Facebook https://www.facebook.com/agodacareers/ * LinkedIn https://www.linkedin.com/company/agoda * YouTube https://www.youtube.com/agodalife Equal Opportunity Employer At Agoda, we pride ourselves on being a company represented by people of all different backgrounds and orientations. We prioritize attracting diverse talent and cultivating an inclusive environment that encourages collaboration and innovation. Employment at Agoda is based solely on a person’s merit and qualifications. We are committed to providing equal employment opportunity regardless of sex, age, race, color, national origin, religion, marital status, pregnancy, sexual orientation, gender identity, disability, citizenship, veteran or military status, and other legally protected characteristics. We will keep your application on file so that we can consider you for future vacancies and you can always ask to have your details removed from the file. For more details please read our privacy policy. Disclaimer We do not accept any terms or conditions, nor do we recognize any agency’s representation of a candidate, from unsolicited third-party or agency submissions. If we receive unsolicited or speculative CVs, we reserve the right to contact and hire the candidate directly without any obligation to pay a recruitment fee.

Senior Software Engineer (Frontend) - Product Engineering

Datadog’s Product Engineering teams build the interfaces that customers rely on to observe, monitor, and troubleshoot their systems in real time. As a Senior Frontend Engineer, you’ll lead the development of complex UI features used daily by hundreds of thousands of users across our core observability products. You’ll collaborate cross-functionally to shape the user experience, own architectural decisions, and continuously improve the performance and accessibility of our frontend systems. Thi

Senior Software Engineer - Data Science

The Data Science team designs and builds algorithmically driven features in the Datadog app. We work across a range of applications, primarily focusing on analysis on streaming data such as anomaly detection, error outliers

Senior Software Engineer (Fullstack) - Product

At Datadog, fullstack engineers build the end-to-end product experiences that power our observability platform. As a Senior Fullstack Engineer with a frontend focus, you’ll drive complex, user-facing features while contributing to the backend systems that support them. You’ll architect performant interfaces at scale, collaborating across disciplines to create seamless product experiences. This role is ideal for engineers who excel in frontend-led fullstack development and want to have deep ow

Senior Software Engineer (Frontend) - Platform & Developer Experience

Datadog’s Platform & Developer Experience teams build the foundational tools and systems that support every part of our product. As a Senior Frontend Engineer, you’ll design and maintain shared UI libraries, build pipelines, design systems, and developer tooling that hundreds of engineers rely on daily. You’ll work closely with frontend engineers across the company to understand their day-to-day workflows, identify pain points, and uncover opportunities for new features and improvements.

Senior Software Engineer - AI Code Gen - Agent Engineer

We’re a new team building AI-assisted tools to make Datadog developers more effective, by autonomously generating tests, fixing bugs, and improving performance. We’re looking for a product-minded generalist to help us quickly define and ship products that make all Datadog customers 10x developers. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensu

Senior Software Engineer - AI Platform

The AI Platform owns Datadog’s entire AI stack—everything from distributed training infrastructure (for our SOTA models) to the frameworks that power <a href="https://www.datadoghq.com/blog/dat

Senior Software Engineer - AI Platform

From $175/yr

The AI Platform owns Datadog’s entire AI stack—everything from distributed training infrastructure (for our SOTA models) to the frameworks that power <a href="https://www.datadoghq.com/blog/dat

Senior Software Engineer - Backend & Scalability

At Datadog, we’re building the platform that enables engineers to monitor, secure, and scale their infrastructure and applications - powering reliability and performance across thousands of companies. We ingest trillions of data points each day and tackle challenges of scale, speed, and resilience. We’re looking for experienced backend engineers who want to take ownership of critical services and deepen their expertise in distributed systems. Whether you've built APIs, pipelines, or ba

Senior Software Engineer (Frontend) - Platform & Developer Experience

Datadog’s Platform & Developer Experience teams build the foundational tools and systems that support every part of our product. As a Senior Frontend Engineer, you’ll design and maintain shared UI libraries, build pipelines, design systems, and developer tooling that hundreds of engineers rely on daily. You’ll work closely with frontend engineers across the company to understand their day-to-day workflows, identify pain points, and uncover opportunities for new features and improvements.

Senior Software Engineer (Fullstack) - Product

At Datadog, fullstack engineers build the end-to-end product experiences that power our observability platform. As a Senior Fullstack Engineer with a frontend focus, you’ll drive complex, user-facing features while contributing to the backend systems that support them. You’ll architect performant interfaces at scale, collaborating across disciplines to create seamless product experiences. This role is ideal for engineers who excel in frontend-led fullstack development and want to have deep ow

Senior Software Engineer (Fullstack) - Product

At Datadog, fullstack engineers build the end-to-end product experiences that power our observability platform. As a Senior Fullstack Engineer with a frontend focus, you’ll drive complex, user-facing features while contributing to the backend systems that support them. You’ll architect performant interfaces at scale, collaborating across disciplines to create seamless product experiences. This role is ideal for engineers who excel in frontend-led fullstack development and want to have deep ow

Senior Software Engineer (Frontend) - Platform & Developer Experience

Datadog’s Platform & Developer Experience teams build the foundational tools and systems that support every part of our product. As a Senior Frontend Engineer, you’ll design and maintain shared UI libraries, build pipelines, design systems, and developer tooling that hundreds of engineers rely on daily. You’ll work closely with frontend engineers across the company to understand their day-to-day workflows, identify pain points, and uncover opportunities for new features and improvements.

Senior Software Engineer (Frontend) - Platform & Developer Experience

Datadog’s Platform & Developer Experience teams build the foundational tools and systems that support every part of our product. As a Senior Frontend Engineer, you’ll design and maintain shared UI libraries, build pipelines, design systems, and developer tooling that hundreds of engineers rely on daily. You’ll work closely with frontend engineers across the company to understand their day-to-day workflows, identify pain points, and uncover opportunities for new features and improvements.

Senior Software Engineer - AI Platform

From $175/yr

The AI Platform owns Datadog’s entire AI stack—everything from distributed training infrastructure (for our SOTA models) to the frameworks that power <a href="https://www.datadoghq.com/blog/dat

Founding software engineer

$70,000 - $120,000/yr

Founding software engineer €70K - €120K EUR•Paris, IDF, FR / Paris, Île-de-France, FR / Remote (FR) Visa US citizenship/visa not requiredSkills Node.js, TypeScript, Amazon Web Services (AWS)Connect directly with founders of the best YC-funded startups. Apply to role ›The role We’re looking for a full stack software engineer, product-minded, with entrepreneurial DNA and early stage 0→1 experience. It’s a plus if you are passionate about digital health and longevity. You’ll join as a founding engineer and shape a product that could add healthy years to millions of lives. As the first full-time founding engineer, you will: - Own mission-critical code from day 1, not tickets - Shape product and tech choices that will impact thousand of users, starting with yourself - Solve real-world health data, privacy, and UX puzzles at European scale - Have a unique opportunity to shape the vision and direction of the company Our culture We are building fast, for the long term. - Rigor without ego: aud

Senior Software Engineer

Senior Software Engineer Paris Office Engineering – 10001 - Communications Platform / Permanent Full Time Employee / Hybrid Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We’re redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Our momentum comes from a simple idea: help teams work smarter, not harder. Aircall’s AI Voice Agent automates routine calls, AI Assist streamlines post-call work, and AI Assist Pro delivers real-time guidance so people can do their best work. The result is higher revenue, faster resolutions, and teams that scale with confidence. Aircall is headquartered in Paris, our European HQ, with a strong North American presence anchored in Seattle, our North American HQ, and teams across Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. We’ve built a prod

Senior Software Engineer (Frontend) - Platform & Developer Experience

Datadog’s Platform & Developer Experience teams build the foundational tools and systems that support every part of our product. As a Senior Frontend Engineer, you’ll design and maintain shared UI libraries, build pipelines, design systems, and developer tooling that hundreds of engineers rely on daily. You’ll work closely with frontend engineers across the company to understand their day-to-day workflows, identify pain points, and uncover opportunities for new features and improvements.

Senior Software Engineer (MLOps) – Training & Registry

At Datadog, we are building a next-generation AI platform that enables seamless training, tracking, and deployment of ML and LLM models at scale. The Training & Registry team is responsible for the infrastructure and tooling that allows applied scientists to iterate rapidly and reliably—managing training jobs, tracking experimentation, and versioning model artifacts across distributed systems. Our work is foundational to AI development at Datadog, powering everything from classic M

Senior Software Engineer (Fullstack) - Product

At Datadog, fullstack engineers build the end-to-end product experiences that power our observability platform. As a Senior Fullstack Engineer with a frontend focus, you’ll drive complex, user-facing features while contributing to the backend systems that support them. You’ll architect performant interfaces at scale, collaborating across disciplines to create seamless product experiences. This role is ideal for engineers who excel in frontend-led fullstack development and want to have deep ow

Senior Software Engineer (MLOps) – Serving

At Datadog, we’re building an AI Platform that powers ML and LLM features across our observability and security products. The Serving team plays a mission-critical role in this platform: ensuring that trained models can be reliably deployed and served at scale in production, across multiple data centers and compute environments. Our goal is to enable self-serve, performant, and observable model inference workflows. This includes building Ray-based serving infrastructure, deploying infe

Software Engineer Java Fullstack (H/F)

Software Engineer Java Fullstack (H/F) Paris Software Engineering Practice – Software Engineering / FRA_Plein Temps France / Hybrid Ippon Paris c’est : Des projets innovants sur les dernières stacks techniques Des IppEvents et IppDejs chaque mois pour se retrouver autours de sujets techniques Des ateliers de développement personnel Un rooftop où il fait bon vivre à deux pas de l’Arc de Triomphe Des équipes pluridisciplinaires passionnées et qui aime partager (Développeurs, Ux Designer, DevOps, Data, Coach, …) Sans oublier le Life at Work : Activités sportive, tournois de jeux vidéos, Soirée jeux de rôle, IppApéro ;) En bonus : Une tireuse à bière et une terrasse, what else ? A quoi ressemblerait votre quotidien : Vous serez en charge de développer autour de projets innovants à grande visibilité sur différents environnements : Java/Spring ou encore NodeJS sur la partie Backend, Angular, React, ou autre framework JS sur la partie Frontend. Vous serez aussi responsable de la construction

Senior Software Engineer

Location type All On-site Hybrid Remote Location All Paris, France Paris, France / Remote Team All Growth Content Tech Data Software Work type All Full-time Internship Growth Content Apply UGC Community Manager Intern On-site — Internship Paris, France Tech Data Apply Senior Data Engineer Hybrid — Full-time Paris, France / Remote Software Apply Senior Software Engineer Hybrid — Full-time Paris, France

Staff Software Engineer, Core Observability

About Datadog: We're on a mission to build the best platform in the world for engineers to understand and scale their systems, applications, and teams. We operate at high scale—trillions of data points per day—providing always-on alerting, metrics visualization, logs, and application tracing for tens of thousands of companies. Our engineering culture values pragmatism, honesty, and simplicity to solve hard problems the right way. The

Senior Software Engineer - Cloud Security Platform

We're on a mission to build the best platform in the world for engineers to understand and scale their systems, applications, and teams. We operate at high scale—trillions of data points per day—providing always-on alerting, metrics visualization, logs, and application tracing for tens of thousands of companies. Our engineering culture values pragmatism, honesty, and simplicity to solve hard problems the right way. <span style="font-weight:

Staff Software Engineer - RUM Platform

We're looking for a Staff Engineer to join the RUM (Real User Monitoring) Platform team within Datadog's DEM (Digital Experience Monitoring) pillar. In this role, you’ll lead foundational engineering work that enables scalable, cross-product integrations across critical observability features such as session replay, error tracking, feature flags, and product analytics. You’ll work hands-on to bring clarity to complex systems, drive architectural convergence, and build b

Staff Software Engineer - Distributed Systems

Datadog’s Staff Engineers are our technical leaders operating at the forefront of technology, building solutions that take us through at least our next five years of growth. They do this in three major ways: As individual contributors, they bring world class technical abilities to deliver industry leading systems in areas such as data visualization, virtual runtime profiling, and planet scale streaming. <li data-pm-slice="1

Senior Software Engineer (MLOps) – Annotation & Evaluation

At Datadog, we are building an internal AI platform that empowers our teams to train, evaluate, and deploy models at scale. The Annotation & Evaluation team plays a foundational role in ensuring our models are reliable, safe, and production-ready. We design the infrastructure and tooling for dataset labeling, model benchmarking, trust & safety evaluation, and performance diagnostics across a range of ML and LLM applications. From interactive labeling pipelines to automated eval

Staff Software Engineer

Datadog’s Staff Engineers are our technical leaders operating at the forefront of technology, building solutions that take us through at least our next five years of growth. They do this in three major ways: As individual contributors, they bring world class technical abilities to deliver industry leading systems in areas such as data visualization, virtual runtime profiling, and planet scale streaming. <li data-pm-slice="1

Senior Software Engineer - Data Science

The Data Science team designs and builds algorithmically driven features in the Datadog app. We work across a range of applications, primarily focusing on analysis on streaming data such as anomaly detection, error outliers

Senior Software Engineer - AI Code Gen - Agent Engineer

We’re a new team building AI-assisted tools to make Datadog developers more effective, by autonomously generating tests, fixing bugs, and improving performance. We’re looking for a product-minded generalist to help us quickly define and ship products that make all Datadog customers 10x developers. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensu

Staff Software Engineer - Product Analytics

Product Analytics is expanding, and we’re looking for an experienced Staff Engineer to lead the technical direction of our user analytics platform. This group builds services that help customers understand users behaviors: when they return, where they drop off, and how product changes affect retention and growth. This is a young and fast-growing product area for Datadog. It brings new types of users into the platform extending our reach beyond our traditional engineering audience: Prod

Senior Software Engineer - Backend & Scalability

At Datadog, we’re building the platform that enables engineers to monitor, secure, and scale their infrastructure and applications - powering reliability and performance across thousands of companies. We ingest trillions of data points each day and tackle challenges of scale, speed, and resilience. We’re looking for experienced backend engineers who want to take ownership of critical services and deepen their expertise in distributed systems. Whether you've built APIs, pipelines, or ba

Senior Software Engineer (Frontend) - Product Engineering

Datadog’s Product Engineering teams build the interfaces that customers rely on to observe, monitor, and troubleshoot their systems in real time. As a Senior Frontend Engineer, you’ll lead the development of complex UI features used daily by hundreds of thousands of users across our core observability products. You’ll collaborate cross-functionally to shape the user experience, own architectural decisions, and continuously improve the performance and accessibility of our frontend systems. Thi

Senior Software Engineer - Distributed Systems

Distributed Systems engineers at Datadog design, implement and run in production the foundational platforms powering our applications. Your data pipelines will ingest, store, analyze and query in real-time billions of events per second from companies all over the globe. The platforms are optimized for durability, high availability, low latency, internet-scale footprint and operability. At Datadog, we place