Software Engineer; Early Product at Atomus
Job in
San Francisco, San Francisco County, California, 94199, USA
Listed on 2026-07-25
Listing for:
Jack & Jill
Full Time
position Listed on 2026-07-25
Job specializations:
-
Software Development
Software Engineer, Full Stack Developer, Software Architect, Backend Developer
Job Description & How to Apply Below
Staff Software Engineer (Early Product)
Salary:
Not Disclosed
Company
Description:
Atomus is a San Francisco-based cybersecurity startup protecting 100+ organizations in the defense industrial base, including the US Air Force, Space Force, and Navy, by automating complex security and compliance requirements for national security technology.
As a Staff Software Engineer at Atomus, you will build the core engines of a multi-platform security ecosystem protecting the nation's most sensitive defense technologies. You will bridge the gap between desktop agents and cloud infrastructure while shaping the engineering foundations of a high‑stakes, mission‑driven startup during its most critical growth phase.
LocationSan Francisco, USA
Why this role is remarkable- Join a mission‑critical team protecting the organizations building hypersonic aircraft, satellites, and autonomous defence platforms essential to national security.
- Work on a product with massive traction, already securing 100+ customers including the US Air Force and Navy, while still operating as a small, high‑impact founding team.
- Tackle unique engineering challenges across Windows, macOS, and Ubuntu while developing next‑generation agentic systems that automate complex security reasoning.
- Architect and build the core infrastructure that senses, correlates, and acts across diverse customer security environments to ensure total protection.
- Develop and harden a multi‑platform desktop agent at fleet scale, ensuring it remains unbreakable across Windows, macOS, and Linux distributions.
- Collaborate directly with founders to define engineering patterns, shipping culture, and product strategy as the team scales from early stage to industry leader.
- 7+ years of experience building production‑grade software, specifically customer‑facing SaaS platforms or sophisticated multi‑platform desktop applications and agents.
- Expertise in diving deep into system behavior and low‑level interactions to understand why software behaves the way it does across different environments.
- A fast‑moving, ownership‑oriented mindset that thrives on ambiguity and the challenge of building foundational systems from a blank page.
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