Frontend Engineer

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