JOBSEARCHER

React Developer

HaystackCalifornia, CAApril 16th, 2026
Senior Software EngineerWe're hiring for a leading defense technology company dedicated to enhancing military capabilities through advanced technology. This employer is known for bringing innovative, 21st-century business models to the defense sector, transforming how military systems are designed, developed, and deployed with cutting-edge AI, autonomy, and computer vision.The Role• Lead the evolution of web application architecture and infrastructure for mission-critical applications.• Design and implement architectural patterns, tools, and best practices for component, page, service, and app development.• Drive improvements in developer experience and infrastructure by proactively identifying pain points and opportunities.• Collaborate across the full stack, including front-end, back-end, build processes, and CI/CD.• Mentor fellow engineers on best practices and effective use of development tools.• Develop new applications and segment existing ones into more focused user experiences.What You'll Need• Substantial experience building production web applications with JavaScript or TypeScript and React.• Proven ability to design architectural patterns and tooling, and lead teams in their adoption.• Experience integrating various tools and libraries (build systems, component libraries, testing, monitoring) into frontend codebases and CI/CD pipelines.• Familiarity with modern backend languages like Go, C++, or Rust.• Minimum of 5 years of software engineering experience.What's On Offer• Competitive salary with the potential for significant equity grants.• Comprehensive healthcare benefits, including medical, dental, and vision plans.• Generous paid time off, caregiver/wellness leave, and a holiday hiatus.• Robust family planning and parenting support, including fertility and adoption coverage.Apply via Haystack today!