Senior Software Engineer
bareinsights · New York, United States ·
- Seniority
- Senior
- Category
- Software engineering
- Experience
- 5+ years
- Visa sponsorship
- No
- Salary
- USD 190,000 – 240,000 / year
bareinsights · New York, United States ·
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Scalable Capital · München, BY, de
Full-stack senior engineer at a Series B cybersecurity company building AI-driven defense and cybersecurity tooling for the U.S. federal defense industrial base. You own features end-to-end from design to deployment, working mainly in TypeScript, React, GraphQL, and Ruby on Rails, with some Rust/Node.js, in a hybrid New York City setting.
This is a full-stack senior engineering role at a Series B cybersecurity company pivoting toward AI-driven defense and cybersecurity tooling. You’ll be a key contributor building next-generation products for the U.S. federal defense industrial base, operating with high ownership and minimal oversight in a fast-moving, product-focused environment.
Develop full-stack features for experimental, cutting-edge products or foundational platform infrastructure.
Own features end-to-end across the full product lifecycle — from planning and design through deployment and optimization.
Step into a product management capacity when needed, contributing to roadmap decisions and prioritization.
Build primarily with TypeScript, React, GraphQL, and Ruby on Rails , with opportunities to work in Rust or Node.js on new defense-focused products.
Collaborate closely with product, design, and engineering teammates in an iterative, high-quality delivery environment.
Mentor and guide junior engineers, helping shape team culture and elevate skills across the organization.
5+ years of professional software engineering experience building backend systems or full-stack applications.
Strong proficiency in TypeScript and at least one modern backend OOP language (Java, Go, Python, C#, or similar).
Hands-on experience with React for frontend development.
Experience designing and consuming GraphQL APIs.
Proficiency in Ruby on Rails backend development.
Demonstrated track record of shipping production software with real-world impact.
Experience leading technical projects or mentoring junior engineers.
Background working in a high-ownership startup environment (Series A–C scale or similar).
Strong CS fundamentals, ideally from a rigorous academic or professional background.
Comfort working on federal defense-related projects.
Experience with Rust or Node.js is a plus.
A GitHub profile or portfolio showing recent, hands‑on coding activity is a plus.
Salary range: $190,000 – $240,000 USD annually. Visa sponsorship is not available for this role.
Hybrid — primary location is New York City, NY, USA. Candidates should be located in or willing to relocate to New York City.
adonis · New York City