Senior Backend Engineer (AI/LLM Trainer)
Confirmed on the employer's own hiring board on Oct 28, 2026. First seen by Alion on Aug 17, 2026.
Core Requirements:
- 5+ years of professional software engineering experience in a backend, fullstack, or systems role.
- Strong proficiency in at least one core programming language, ideally Python, NodeJS + TypeScript, and FastAPI.
- Hands-on experience with Terminal-Bench, with the ability to evaluate AI agent performance on terminal-based tasks including compiling code, running tests, managing environments, and completing multi-step software engineering workflows.
- Comfortable working withLinux, Docker, and Git, command line/terminal, and common development workflows.
- Strong experience writing functional and integration tests. Hands-on practitioners, not reviewers.
Nice to Have:
- Experience working on AI, machine learning, or LLM-related projects
- Familiarity with software quality assurance methodologies or technical evaluation frameworks
- Experience working with distributed systems or large-scale applications
Other Traits:
- We are looking for a Senior Software Engineer to contribute to the development and evaluation of AI training data for a leading expert human data platform for AI agents and LLMs.
- In this role, you will work at the intersection of software engineering and artificial intelligence, helping AI labs and companies build better, safer, and more capable models. You will leverage your deep technical expertise to write prompts, produce reference-quality code solutions, evaluate model outputs, and provide the structured human signal that makes AI systems smarter.
- This is not a traditional engineering role - it is a unique opportunity for senior engineers who want to shape how the next generation of AI understands, generates, and reasons about code.