Senior Frontend Infrastructure Engineer Jobs

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Senior Frontend Infrastructure Engineer

UniswapNew Yorkremote

$180,000 - $226,000/yr

Uniswap Labs builds products that help millions of people access DeFi simply and securely — from the Uniswap Web App and Wallet to crypto infrastructure like the Uniswap Trading API, and Unichain. Uniswap Labs also contributes to the development of the Uniswap Protocol, which has processed over $2.9 trillion in volume across thousands of tokens on Ethereum and 12+ other chains. When you join Uniswap, you become part of a team that's reshaping the way value flows on the internet. The Apps Infra team is the horizontal foundation that every product team at Uniswap builds on. We own the data layer, design systems, release and QA automation, UI libraries, and shared frontend services. We're product-centric at our core — the infra we build is always in service of the user experience, and we regularly contribute to product and design engineering work alongside our tooling and platform responsibilities. We also contribute heavily to AI-powered internal tools and automations that help the engineering org ship faster. We're looking for a senior engineer who goes deep: someone who can drive a large-scale migration one week, build an AI-powered CLI tool the next, and ship a polished UI component the week after that. You'll have strong opinions on tooling, care about developer experience, and treat product quality as the backbone of everything you build. RESPONSIBILITIES - Own and evolve Uniswap's shared frontend infrastructure — design systems, UI component libraries, data-fetching layers (React Query), and notification systems — across web and mobile - Contribute to product and design engineering work, keeping the team closely connected to what users experience - Build and contribute to AI-powered internal tools and automations — changelog builders, cherry-pick automations, CLI tools, and workflows that use LLMs like Claude to accelerate development - Lead large-scale migrations (e.g., Tamagui → Tailwind) with strong opinions on tooling choices and a plan that other teams can follow - Build and improve release automation, CI/CD pipelines, and QA tooling to increase reliability and developer velocity - Drive performance improvements across the all of our apps - Maintain backend-for-frontend services that support multiple product teams - Produce high-quality, well-tested code and thoughtful architecture docs; set the bar on PR reviews - Mentor engineers across teams through code review, documentation, and establishing best practices where none exist REQUIREMENTS - 5+ years of software engineering experience - Deep experience with both React and React Native; comfort working across web and mobile from a single codebase - Strong track record building developer tooling, design systems, or shared infrastructure — with a product sensibility that keeps you connected to what users actually touch - Opinions on frontend architecture, styling systems, data-fetching patterns, and build tooling — and the ability to back them up - Experience owning and delivering large, ambiguous projects end-to-end with minimal direction - Comfort with automation: CI/CD, release engineering, testing frameworks - Eager to push the boundaries of AI-assisted development — not just using the tools, but exploring what's newly possible - A desire to keep up with modern best practices in web and mobile development NICE TO HAVE - Active open source contributions — especially to projects like wagmi, viem, Next.js, React Router, TanStack, or similar frontend/tooling ecosystems - Experience building AI-powered developer tools, CLI tools, or internal automations with LLMs - Experience with Swift/Kotlin or native mobile development - Familiarity with crypto features and concepts — candidates with no crypto experience are still welcome (encouraged!) to apply - Experience at companies that value this kind of infra/platform/DX role (e.g., Shopify, Vercel, Replit, Phantom, Coinbase) - Degree in computer science - Love for unicorns :) Minimum full-time salary of $180,000-$226,000. Disclosure in accordance with New York City's Pay Transparency Law. Full Time employees at Uniswap Labs are also eligible for other compensation elements, including tokens, and benefits, dependent on the position type. Uniswap Labs' Full-Time employee benefits include company-paid medical, dental, & vision for you and your dependents, wellness offerings including a partnership with Equinox Fitness Clubs, 401(k) with 4% employer contribution, annual $1,500 education stipend, unlimited and encouraged time off, up to 16 weeks paid parental leave, home office setup stipend for remote employees and daily lunches at NY headquarters (all benefits are subject to applicable taxes and based on eligibility). Uniswap Labs is committed to diversity in our workforce and is proud to be an Equal Opportunity Employer (EEO). We provide employment opportunities without regard to age, race, color, ancestry, national origin, religion, disability (including gender dysphoria and similar gender-related conditions), sex, gender identity or expression, sexual orientation (including actual or perceived heterosexuality, homosexuality, bisexuality, and asexuality), veteran status, military status, domestic violence victim status, reproductive health decision making or any other protected category. In addition, Uniswap Labs participates in E-Verify. You can view the E-Verify poster here https://www.e-verify.gov/sites/default/files/everify/posters/EVerifyParticipationPoster.pdf and the Right to Work poster here https://www.justice.gov/crt/case-document/file/1133936/dl.

5 months agovia universal intelligenceApply ›

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Senior Software Engineer I, Frontend Infrastructure & Experience

BrazeNew York, NY, UShybrid

$128,842 - $209,368/yr

At Braze, we have found our people. We're a genuinely approachable, exceptionally kind, and intensely passionate crew. We seek to ignite that passion by setting high standards, championing teamwork, and creating work-life harmony as we collectively navigate rapid growth on a global scale while striving for greater equity and opportunity – inside and outside our organization. To flourish here, you must be prepared to set a high bar for yourself and those around you. There is always a way to contribute: Acting with autonomy, having accountability and being open to new perspectives are essential to our continued success. Our deep curiosity to learn and our eagerness to share diverse passions with others gives us balance and injects a one-of-a-kind vibrancy into our culture. If you are driven to solve exhilarating challenges and have a bias toward action in the face of change, you will be empowered to make a real impact here, with a sharp and passionate team at your back. If Braze sounds like a place where you can thrive, we can't wait to meet you. WHAT YOU'LL DO Braze's product is the control center for thousands of the world's most sophisticated marketing teams. The Frontend Infrastructure \& Experience (FIX) team builds the platform foundations that every product engineer relies on and owns key parts of the end-user experience. The team makes it easy for engineers across Braze to build polished, accessible, and consistent UIs. FIX owns our design system and component library, internationalization stack, code generation and scaffolding tooling, and the navigation and routing layer of the product. The team also owns key customer-facing experiences including our data tables and our rich text, drag-and-drop, and code editors. As a Senior Engineer on FIX, you will build high-impact frontend infrastructure and product experiences used across Braze. You will lead important projects from design through rollout, raise the quality bar through technical judgment and code review, and help other engineers move faster by making the product easier to build, test, and maintain. In this role you will: Design and build foundational frontend systems, components, tools, and patterns used by engineers across Braze Lead large projects end-to-end, including technical design, implementation, testing, rollout, and operational follow-through Improve the developer experience of working in a large TypeScript and React codebase through better abstractions, tooling, documentation, and examples Build customer-facing product experiences that are polished, accessible, performant, and consistent with Braze's product standards Partner with product engineers, designers, and infrastructure teams to solve cross-cutting frontend problems Mentor other engineers through code review, pairing, technical guidance, and clear communication Recent and ongoing work on the team includes: Developing the framework used to build our marketing message editors Migrating the navigation and routing layer to a fully React-based system Extending the design system with semantic tokens and supporting a product rebrand Building type-safe scaffolding and API tooling for frontend development Improving frontend testing infrastructure with Cypress, Jest, and related tooling Advancing accessibility, localization, and consistency across product experiences Parts of our stack with which you will work: TypeScript, React Cypress, Jest, RSpec Frontend build, packaging, and code generation tooling Ruby on Rails WHO YOU ARE Have 5+ years of software engineering experience with a strong track record of technical impact Are highly skilled in modern frontend development, especially TypeScript and React Have experience building reusable frontend systems, components, tools, or infrastructure Care deeply about user experience, accessibility, performance, and maintainability Are comfortable working in a large frontend codebase with many stakeholders Communicate clearly, collaborate well across teams, and help raise the technical bar for those around you Bonus experience + Experience building design systems or component libraries + Experience with frontend testing frameworks such as Cypress or Jest + Experience with code generation, linting, codemods, or other developer tooling + Experience with internationalization, localization, or accessibility + Experience with Ruby on Rails For candidates based in the United States, the pay range for this position at the start of employment is expected to be between $128,842 and $209,368/year with an expected On Target Earnings (OTE) between $144,000 and $234,000/year (including bonus or commission). Your exact offer may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. In addition to cash compensation, this role qualifies for a comprehensive Total Rewards package that includes equity grants of restricted stock (RSUs) so that you will own a piece of our company. #LI-Hybrid WHAT WE OFFER Braze benefits vary by location, and we encourage you to review our specific benefits offerings for each country here. More details on benefits plans will be provided if you receive an offer of employment. From offering comprehensive benefits to fostering hybrid ways of working, we've got you covered so you can prioritize work-life harmony. Braze offers benefits such as: Competitive compensation that may include equity Retirement and Employee Stock Purchase Plans Flexible paid time off Comprehensive benefit plans covering medical, dental, vision, life, and disability Family services that include fertility benefits and equal paid parental leave Professional development supported by formal career pathing, learning platforms, and a yearly learning stipend A curated in-office employee experience, designed to foster community, team connections, and innovation Opportunities to give back to your community, including an annual company-wide Volunteer Week and donation matching Employee Resource Groups that provide supportive communities within Braze Collaborative, transparent, and fun culture recognized as a Great Place to Work® ABOUT BRAZE Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze helps brands deliver great customer experiences that drive value both for consumers and for their businesses. Built on a foundation of composable intelligence, BrazeAI™ allows marketers to combine and activate AI agents, models, and features at every touchpoint throughout the Braze Customer Engagement Platform for smarter, faster, and more meaningful customer engagement. From cross-channel messaging and journey orchestration to Al-powered decisioning and optimization, Braze enables companies to turn action into interaction through autonomous, 1:1 personalized experiences. The company has repeatedly been recognized as a Leader in marketing technology by industry analysts, and was voted a G2 "Best of Marketing and Digital Advertising Software Product" in 2025. Braze was also named a 2025 Best Companies To Work For by U.S. News \& World Report, a 2025 America's Greatest Companies by Newsweek, and a 2025 Fortune Best Workplace in Technology™ by Great Place To Work®, among other accolades. Braze is also proudly certified as a Great Place to Work® in the U.S., the UK, Australia, and Singapore. The company is headquartered in New York with offices in Austin, Berlin, Bucharest, Chicago, Dubai, Jakarta, London, Paris, San Francisco, São Paulo, Singapore, Seoul, Sydney and Tokyo. BRAZE IS AN EQUAL OPPORTUNITY EMPLOYER At Braze, we strive to create equitable growth and opportunities inside and outside the organization. Building meaningful connections is at the heart of everything we do, and that includes our recruiting practices. We're committed to offering all candidates a fair, accessible, and inclusive experience – regardless of age, color, disability, gender identity, marital status, maternity, national origin, pregnancy, race, religion, sex, sexual orientation, or status as a protected veteran. When applying and interviewing with Braze, we want you to feel comfortable showcasing what makes you you. We know that sometimes different circumstances can lead talented people to hesitate to apply for a role unless they meet 100% of the criteria. If this sounds familiar, we encourage you to apply, as we'd love to meet you. Please see ourCandidate Privacy Policy for more information on how Braze processes your personal information during the recruitment process and, if applicable based on your location, how you can exercise any privacy rights.

3 months agovia universal intelligenceApply ›

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