Full Stack Engineer (Defense)

ASI

51-200 employees, Series B
See all 32 open roles at ASI

Posted · Verified on Ashby

Location: Boston, US · Boston, Massachusetts, United States
Salary: $$135K – $265K • ASI is dedicated to maintaining fair and equitable compensation practices. The salary range provided for this role reflects the minimum and maximum cash compensation targets for candidates across all U.S. locations and levels of expertise
Employment: Full-time
Source: a16z
Posted: Apr 15, 2026
Found: Oct 21, 2026

Job Description

From ASI's job board on Ashby.

About ASI

ASI is the frontier AI company that dynamically orchestrates critical infrastructure and defense assets, across air traffic control, energy, logistics, and combat operations. ASI's systems simulate physical operations, hours, days, and weeks ahead, so the people running air traffic control, the electric grid, and military operations can catch problems early and act before they spread. ASI is powering vital infrastructure for customers like United Airlines, National Grid, the Federal Aviation Administration, Delta Air Lines and the Department of War. ASI is headquartered in Boston with offices in Washington, DC, Denver, and Europe, and is backed by leading investors, including Andreessen Horowitz, Citadel Securities, and Spark Capital.

What You Will Do:

As a Full Stack Engineer, 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 Python, JavaScript, and Typescript.

  • Experience w/ building infrastructure in AWS, Kubernetes, Docker, Terraform.

  • Proficient in leveraging modern LLM tools to accelerate development workflows and enhance code quality.

  • Ability to partner across teams and directly with customers, turning ambiguous requirements into shipped software.

  • Comfort operating independently in a fast-paced and dynamic environment - driving work to completion without waiting for direction.

  • Curiosity and a desire to grow, including learning our customers' domain deeply enough to anticipate their needs.

  • Ability to travel.

  • Ability to obtain a US security clearance.

How We Hire:

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.

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