Lead Software Engineer AI (Staff Engineer)
Thomson Reuters5 days ago
Mexico City, MexicoStaff+
Responsibilities
- Own the architecture and system design of Thomson Reuters Audit Suite’s AI-first backend systems.
- Lead multi-quarter initiatives spanning AI, product, infrastructure, orchestration, retrieval, and knowledge-base systems.
- Design and build backend services integrating C#/.NET, Python, FastAPI, PostgreSQL, AWS, Vercel, and heterogeneous technology stacks.
- Build AI orchestration capabilities including routing, tool calling, MCP servers, multi-step workflows, safety controls, guardrails, and error handling.
- Design high-throughput and low-latency AI workloads using caching, queuing, rate limiting, model failover, and cost/performance trade-offs.
- Develop retrieval, search, vector-store, and indexing strategies for large-scale tax and accounting data.
- Establish SLOs, observability, incident response, testing, rollout, and postmortem practices for reliable AI systems.
- Mentor senior and mid-level engineers and provide technical direction across engineering, product, UX, AI Labs, ML, and design teams.
- Translate new model capabilities into reliable user-facing workflows and help shape engineering strategy, roadmaps, and culture.
Requirements
- Bachelor’s degree in Computer Science, Computer Engineering, a related field, or equivalent experience.
- Proven track record of shipping production-grade AI systems to customers, including deployment, monitoring, evaluation, scaling, and ongoing operational ownership in enterprise environments.
- 10+ years of cumulative experience, including at least 2 years in a lead role and 5+ years of full-stack development experience.
- Experience building scalable cloud-based applications, web services, APIs, and AI-driven products.
- Experience with C#/.NET or similar production frameworks such as ASP.NET Core, relational databases such as SQL Server or PostgreSQL, and a major cloud provider such as AWS or Azure.
- Experience architecting accessible front-end solutions using JavaScript, TypeScript, HTML, CSS, and modern frameworks such as Angular or React.
- Strong background in distributed systems, data modeling, API contracts, observability, resilience patterns, and performance tuning under load.
- Experience or demonstrated interest in LLMs, agents, retrieval, AI-native software, and new engineering paradigms.
- Experience designing CI/CD pipelines such as GitHub Actions.
- Hands-on experience integrating LLM APIs into production applications, including prompt and response management, cost controls, and safety considerations.
- Experience with vector databases, embeddings, semantic search, or custom retrieval pipelines is preferred.
- Experience with automated testing, reliability, and release practices for systems with non-deterministic model behavior is preferred.
- Experience in fintech, tax, audit, legal, or other domains where correctness, auditability, and compliance matter is preferred.
Benefits
- Flexible hybrid work model for office-based roles.
- Flexible work arrangements, including work from anywhere for up to 8 weeks per year.
- Flexible vacation, two company-wide Mental Health Days, Headspace app access, retirement savings, tuition reimbursement, employee incentive programs, and wellbeing resources.
- Career development, continuous learning, Grow My Way programming, and skills development opportunities.
- Two paid volunteer days annually and opportunities for pro-bono consulting and ESG initiatives.
Tech Stack
AngularAWSAzureC#CSSFastAPIGitHub ActionsHTMLJavaScriptMicrosoft SQL Server.NETPostgreSQLPythonReactTypeScriptVercel
Categories
About Thomson Reuters
Thomson Reuters (TSX/NDAQ: TRI) informs the way forward by bringing together the trusted content and technology that people and organizations need to make the right decisions. We serve professionals across legal, tax, accounting, compliance, government, and media. Our products combine highly specialized software and insights to empower professionals with the data, intelligence, and solutions needed to make informed decisions, and to help institutions in their pursuit of justice, truth, and transparency. Reuters, part of Thomson Reuters, is a world leading provider of trusted journalism and news. For more information on Thomson Reuters, visit tr.com and for the latest world news, reuters.com.