> Markdown version of [/jobs/ext/4637326-senior-staff-software-engineer](https://www.wearedevelopers.com/jobs/ext/4637326-senior-staff-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior/Staff Software Engineer - **Company:** True - **Location:** New York, NY, United States - **Experience:** Expert - **Salary:** $210,000 - $260,000 - **Contract:** Permanent contract - **Skills:** Node.Js, Object-Oriented Software Development, Ruby on Rails, Security Software, Software Engineering, TypeScript, ReactJS, Backend, Graphql, Software Coding - **Published:** November 8, 2026 - **Apply:** https://www.juju.com/job/28_25304_154bd8f168f8b30f3518a108153cd096 ## About the Role * At least 6 years of full-stack software engineering experience, with senior or staff-level technical depth. * Strong production experience with TypeScript and a modern object-oriented backend language. * Experience with React, GraphQL, and Ruby on Rails; familiarity or interest in Rust or Node.js is useful. * Experience leading multi-engineer projects and mentoring other engineers. * A record of hands-on coding, technical ownership, and delivering complex software. * Experience at early-stage startups and motivation to work in cybersecurity and defense-related technology. * Strong computer science fundamentals or an equivalent track record. ## Description Join a product engineering team building cybersecurity tools for the U.S. defense industrial base. This hands-on role spans experimental product development and foundational infrastructure, with ownership across the software lifecycle., * Build full-stack features for new products or develop foundational infrastructure. * Contribute from planning and design through deployment and ongoing optimization. * Work closely with product, design, and engineering partners in an iterative environment. * Maintain high engineering standards while moving quickly and taking ownership. * Mentor engineers and help shape team practices and culture.