Thomson Reuters
Principal Software Engineer – AI Platform & Architecture
$159K–$340K
United States of America, Eagan, Minnesota +4 · Hybrid · Principal · Full-time · Posted Oct 2, 2026
- Location
- United States of America, Eagan, Minnesota
United States of America, Frisco, Texas
United States of America, Brooklyn, New York
Canada, Toronto, Ontario
United States of America, Ann Arbor, Michigan - Experience
- 8-10+ years in full-stack application development; the posting also asks for architecture and design leadership. No alternative years are stated.
- Education
- Bachelor’s Degree in Computer Science, Computer Engineering, Related Field, or Equivalent Experience.
About the job
Lead architecture and hands-on development of Cloud Audit Suite and its AI-powered integrations, building scalable, reliable systems for accounting and audit workflows.
What you'll do
- Set technical and AI strategy and lead integrations with CoCounsel Audit and Confirmation using APIs, MCP servers, and agents.
- Design and evolve backend services and AI orchestration, including workflows, safety guardrails, reliability, and performance at scale.
- Lead cross-functional initiatives, mentor engineers, and guide systems from experimentation through rollout and support.
What they ask for
- Bachelor’s Degree in Computer Science, Computer Engineering, Related Field, or Equivalent Experience.
- 8-10+ years of full-stack application development, including hands-on architecture and design leadership for large-scale systems and scalable web services and APIs.
- C#/.NET expertise, with production experience using ASP.NET Core or similar, relational databases, and a major cloud provider.
- Experience with Python in AI/ML system development and demonstrated experience with AI systems such as LLMs, agents, or retrieval.
Nice to have
- Experience with CI/CD pipelines such as GitHub Actions and production LLM API integrations.
- Experience with vector databases, embeddings, semantic search, or retrieval pipelines; customer interaction or regulated-domain experience is also valued.
Pay
$183,100 USD - $340,000 USD (base salary); $158,900 USD - $295,100 USD (base salary)
Tools
C#/.NET, Python, FastAPI, PostgreSQL, AWS, Vercel, OpenAI, Anthropic
AI focus
Set AI strategy and build AI-native systems, including agents, MCP servers, LLM orchestration, retrieval, guardrails, and scalable production workflows.
Model-written summary · the original posting is authoritative