Frontend Engineer (Defense)

**This is a role posted by Reval Recruiting on behalf of a client** **Frontend Engineer (Defense)** **Location:** Boston, US **Workplace:** On\-site **Employment Type:** Full\-time **Work Authorization:** Applicants must be authorized to work in the United States without visa sponsorship now or in the future. This role is posted on behalf of the following client: A venture\-backed critical\-infrastructure technology company building mission\-critical decision\-support systems across aviation, defense, energy, and other operational domains. Backed by top\-tier investors including Andreessen Horowitz, Spark Capital, and Renegade Partners, the company helps compress complex operational analysis from days into seconds. **Role Overview** As part of the product engineering team, this Frontend Engineer will work closely with defense and design teams to create mission\-critical products with an exceptional user experience. The role involves building systems that reflect the real\-world intricacies of air operations and delivering new user\-facing features across React, Redux, Mapbox, and TypeScript, including work spanning database models and APIs. **What You'll Do** * Build and ship mission\-critical frontend features for defense\-focused operational products. * Develop complex, map\-based web applications using technologies such as React, Redux, Mapbox, and TypeScript. * Collaborate with product, defense, design, and engineering stakeholders to translate real\-world air operations workflows into intuitive software experiences. * Contribute across the application stack, including user\-facing interfaces, APIs, and data models. **Who You Are** * Proficient in JavaScript/TypeScript, React, and CSS, with the ability to write fast, efficient, and maintainable code. * Experienced building complex, map\-based web applications with Mapbox, Maplibre, or Google Maps, especially real\-time rendering of multiple interactive features and overlays. * Familiar with WebGL, WebGPU, or ThreeJS for accelerated graphics rendering, and WebAssembly (WASM) for improving application performance. * Action\-oriented, detail\-driven, and passionate about delivering excellent user experiences. * Proficient in leveraging modern LLM tools to accelerate development workflows and improve code quality. * Authorized to work in the United States without sponsorship now or in the future; employment may also be contingent on the ability to obtain required authorizations related to export\-controlled technology and restricted U.S. Government data. **Compensation** **Salary:** $135,000 \- $260,000 per year