Role OverviewAs a Senior Software Engineer, Full Stack, you will build and ship full-stack applications, services, and internal tools in Python, Java, Rust, C#, C++, or TypeScript to exercise frontier model capabilities. You will integrate pre-release model APIs into working software, including tool interfaces, evaluation harnesses, and telemetry. You will diagnose and document model and integration failure modes, translating engineering observations into clear written feedback for the research team.
What You Will Do
Your main day-to-day responsibilities will include building and shipping production software, integrating pre-release model APIs, diagnosing and documenting model and integration failure modes, and collaborating with the engineering manager and other engineers to maintain consistency in code quality, architecture, and technical documentation.
Why It Might Be a Fit
To be a fit for this role, you must have 6+ years of professional experience building and shipping production software, deep production experience in at least one of Python, Java, Rust, C#, or C++, and hands-on ownership across the stack. You must also be able to onboard onto an unfamiliar codebase and deliver working code quickly, and have strong written communication skills.
Requirements
- 6+ years of professional experience building and shipping production software
- Deep production experience in at least one of Python, Java, Rust, C#, or C++
- Hands-on ownership across the stack: backend service and API design, a modern front-end framework (React or equivalent), data modeling, and cloud deployment
- Ability to onboard onto an unfamiliar codebase and deliver working code quickly
- Strong written communication skills
Benefits
- W-2 employment with Cincinnatus LLC
- Competitive hourly rate of $90–$110/hour
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