Full-Stack Software Engineer

Requirements

Must have:

- We require U.S. citizenship and eligibility for a government security investigation and access to sensitive information; Green Card holders and visa holders are not eligible.

• We require a bachelors degree or higher in Computer Science, Computer Engineering, or a related technical field; a masters degree or Ph.D. is preferred.
• We are looking for a practitioner who will design architecture and write the code, not a manager or executive.
• We need strong proficiency in modern programming languages such as C, C , Golang, JavaScript/TypeScript, and Python.
• We expect substantial experience with containerization, microservices architectures, and data platforms including Docker, GraphQL Mesh, gRPC, REST, Elasticsearch, MongoDB, and PostgreSQL.
• We value exposure to or a strong interest in scientific computing, CUDA/GPGPU programming, PyTorch, TensorFlow, digital signal processing, and college-level physics and mathematics such as linear algebra and acoustics.
• We want someone who demonstrates intellectual humility, works independently, and remains receptive to peer feedback and technical challenge.
• We need excellent communication skills, including the ability to turn complex mathematical and AI concepts into clear, actionable software designs.
• We look for a track record of taking projects from concept to delivery with minimal oversight and overcoming major technical setbacks.
• We need someone who can handle fast-paced, high-pressure work with composure and maintain professionalism under technical pressure.

Responsibilities:

- We build and deploy robust full-stack applications that connect research-grade computational models with production-ready systems.

• We design user interfaces that are technically sound, intuitive, and scientifically accurate for complex scientific and operational data.
• We implement secure-by-design code and help ensure compliance with evolving CMMC and NIST 800-171/53 standards within an automated CI/CD pipeline.
• We use AI-augmented engineering workflows to speed up the movement of machine learning models into field-ready prototypes.
• We develop 3D geospatial displays with React and BabylonJS/CesiumJS to visualize real-time acoustic wave propagation and sonar simulation data.
• We architect secure, containerized backends using Golang and Python with microservices patterns and interfaces such as gRPC and GraphQL Mesh.
• We collaborate with our research scientists to integrate high-performance GPGPU pipelines, including CUDA and TensorFlow, into deployed full-stack applications.
• We work across the full lifecycle from concept and design through testing, deployment, and field integration.

Company:

We are ARiA, a specialized R&D firm where advanced science and machine learning are translated into real-world deployment. Based in Seattle, WA (Westlake), we build the technical engines behind next-generation defense and commercial systems, and we tackle high-consequence challenges with an agile, interdisciplinary approach. Our culture emphasizes freedom, accountability, and total ownership rather than rigid hierarchy, and we value principled pragmatists and humble high-performers who care about secure, maintainable code.

We offer market-leading compensation and benefits, including 401(k), matching, dental and health insurance, an employee assistance program, flexible scheduling, health savings account, life insurance, paid time off, parental leave, and relocation assistance. This is an in-person, full-time role in Seattle, WA, with a preferred location in Seattle 98109.