Principal Software Engineer-AI
WorkdayNew York, New York, United States ā¢ Frisco, Texas, United States ā¢ Toronto, Ontario, Canada ā¢ Minnesota, United States
Posted March 27, 2026
158900 - 295100 USD
Full Time
About the Company
Thomson Reuters informs the way forward by bringing together the trusted content and technology that people and organizations need to make the right decisions.
Job Description
This posting is for a Principal Software Engineer-AI role at Thomson Reuters, responsible for building the AI platform that powers tax and accounting products, including CoCounsel for Tax and Accounting. The successful candidate will own core backend and AI orchestration systems, shape the company's AI platform and patterns, and work at real production scale.
Requirements
- Bachelors Degree in Computer Science, Computer Engineering, Related Field, or Equivalent Experience
- 8-10+ years of experience in backend development, building scalable web services and APIs
- Deep Python expertise and experience with production systems using frameworks like FastAPI (or similar), relational databases (PostgreSQL or equivalent), and a major cloud provider (AWS preferred)
- Strong background in distributed systems: data modeling, API contracts, observability, resilience patterns, and performance tuning under load
- Proven track record owning large, complex projects end-to-end: architecture, execution, rollout, and long-term operation
- Excellent communication skills and the ability to partner with product, design, and ML teams in a fast-moving environment
- Demonstrated interest in AI systems and new engineering paradigms: LLMs, agents, retrieval, or similar ā you care about what āAI-nativeā software should look like
Benefits
- Flexible vacation
- Two company-wide Mental Health Days off
- Access to the Headspace app
- Retirement savings
- Tuition reimbursement
- Employee incentive programs
- Resources for mental, physical, and financial wellbeing
