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ASI

Frontend Engineer (Defense)

Boston, US
Salary
$135K - $265K
Level
Mid

Not stated in the posting: work type, visa.

Open. First seen 2 October 2026.

About the role

ASI's standard text

About ASI

ASI's mission-critical technology powers decision-making across aviation, defense, energy, and other critical infrastructure domains. Backed by top-tier investors including Andreessen Horowitz, Spark Capital, and Renegade Partners, ASI delivers operational decision superiority—compressing days of analysis into seconds of action. ASI is leading the way and pushing the boundaries of what’s possible.

What You Will Do:

As part of our product engineering team, you'll work closely with our defense and design teams to create mission-critical products with a top-notch user experience. You'll work on systems that reflect the real-world intricacies of air operations and build new user-facing features in React, Redux, Mapbox, and Typescript with everything from database models to APIs.

What We Value:

  • Proficiency in JavaScript/TypeScript, React, and CSS.
  • Experience building complex, map-based web applications with Mapbox, Maplibre, or Google Maps, with a focus on real-time rendering of multiple interactive features and overlays.
  • Familiarity with WebGL, WebGPU, or ThreeJS for accelerated graphics rendering and WebAssembly (WASM) for enhancing application performance.
  • A bias for action. When you see a problem you solve it.
  • Ability to writing fast, efficient, and maintainable code.
  • Strong attention to detail and a passion for great user experiences.
  • Proficient in leveraging modern LLM tools to accelerate development workflows and enhance code quality.

How We Hire:

ASI's standard text

We look at the interview process not as a screening or test, but rather as an opportunity to simulate what it would look like working together. We build the interview process around you.

ASI works with export controlled technology and restricted U.S. Government data, including on contracts mandating U.S. immigration status and location restrictions for performing personnel. Employment offers are contingent on ability to timely obtain all required authorizations for contemplated job duties.

What this role asks for

Particular to this role

Redux · Three.js · WebGL

Rare in ASI's other 23 open postings.

Standard for frontend roles

CSS · JavaScript · React · TypeScript

Common in frontend postings at any company.

In most of ASI's ads

LLM

Named in most of its open postings, whatever the role.

70% of this description is written for the role. The rest is ASI's standard text, folded away below.

Read against ASI's other open postings on this site.

The team: 1.2. Defense Eng

This role is one of 8 open in 1.2. Defense Eng.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

LLM (8 of 8), Python (7 of 8), AWS (4 of 8), Kubernetes (4 of 8), Rust (4 of 8), Docker (3 of 8), JavaScript (3 of 8)

OTHER ROLES ON THIS TEAM

From the team and dates on ASI's own job board.

See Frontend Engineer salaries in the United States →

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