Senior Full Stack Software Engineer
Quartermaster3 months ago
Arlington, VA, USA or New York, NY, USASenior
Base Salary
$210k - $260k/yr
Responsibilities
- Design, build, and ship full-stack features across the React web portal and Spring backend services.
- Develop and maintain versioned APIs for sensor data, vessel telemetry, and AI detection outputs.
- Architect and evolve AWS-based services for reliability, scalability, and low latency under high-throughput conditions.
- Optimize PostGIS queries and data-access patterns for artifact retrieval, map rendering, and time-series analysis.
- Build internal administration and fleet-management tools for configuring, monitoring, and supporting SmartMast units.
- Implement precise UI components for data-dense map views and sensor visualizations in collaboration with the design team.
- Participate in on-call rotations and own service reliability and incident response.
- Review code, mentor engineers, and raise the team’s technical bar.
Requirements
- At least 5 years of professional full-stack software engineering experience.
- Strong experience with React and modern JavaScript/TypeScript for complex web applications.
- Backend experience with Spring Boot and designing REST APIs at scale.
- Hands-on experience with PostGIS, document databases, schema design, and performant queries.
- Working knowledge of AWS services including S3, Lambda, ECS/EKS, IoT Core, and CloudWatch.
- Experience with microservices architecture, Kubernetes containerization, and CI/CD pipelines.
- Ability to reason about real-time streams, large media assets, and geospatial coordinates.
- Strong written and verbal communication skills.
- Preferred experience with geospatial data, Mapbox, Leaflet, Deck.gl, or AIS/vessel tracking systems.
- Preferred familiarity with WebSockets or SSE for real-time UI updates.
- Preferred background in defense, maritime, or government software and data security requirements.
- Preferred experience integrating ML model outputs into user-facing product features.
Benefits
- Distributed team environment with asynchronous work
- In-office and flexible-hours work arrangement
- Startup atmosphere with autonomy for engineers
Tech Stack
Categories
About Quartermaster
Quartermaster builds a maritime intelligence platform that turns commercial and civilian vessels into a distributed sensing network via its SmartMast hardware, fusing HD video, radar, RF, AI, and AIS. It sells maritime domain awareness data and software to defense and government agencies, insurers, and energy and oceanography users. Founded in 2023 and headquartered in Arlington, Virginia, it has deployed 600+ sensors across 25+ countries and identified 400,000+ vessels outside AIS.