Senior Software Engineer - AI I

Are you passionate about building next-generation AI solutions? We're looking for a skilled engineer to architect and deliver cutting-edge .NET services and APIs powered by Azure OpenAI and Azure AI Services. In this role, you'll design advanced retrieval-augmented generation (RAG) pipelines, craft agentic workflows, and develop Semantic Kernel plugins that push the boundaries of what's possible with AI.
About the Role:

• Architect and build .NET services and APIs integrating Azure OpenAI and Azure AI Services.
• Design and implement RAG pipelines using Azure AI Search for hybrid retrieval and grounding.
• Build agentic workflows with tool/function calling, planning, memory, and safe execution boundaries.
• Develop Semantic Kernel plugins/skills; configure planners, connectors, and memory stores.
• Implement observability for AI systems (cost, latency, token usage, quality metrics; App Insights/OpenTelemetry).
• Partner with product, security, and data teams to align solutions with compliance and business outcomes.

• Mentor engineers; lead design reviews, write RFCs, and drive engineering excellence.

About you:
You will be a good match for ths position if your backgrounds includes:

• C#/.NET 7/8: Advanced async, streaming, DI, clean architecture, performance tuning.
• ASP.NET Core: REST APIs, authentication/authorization (OAuth2/OIDC/JWT), caching, resiliency.
• Azure AI Services:
  • Azure OpenAI: GPT models, embeddings, function calling, streaming responses, cost optimization.
  • Azure AI Search: Indexing, hybrid search (BM25 + vectors), skillsets, enrichers, re-ranking.
  • Azure AI Studio: Prompt flow orchestration, evaluation pipelines.
• RAG: Chunking strategies, metadata enrichment, hybrid retrieval, citation fidelity.
• Agentic AI: Multi-tool orchestration, planners, memory, error recovery, guardrails.
• Semantic Kernel (C#): Kernels, semantic/native skills, connectors, planners, memory stores.
• Azure Infrastructure: App Service, Functions, AKS, Container Apps, API Management, Key Vault.
• Security & Compliance: PII handling, data residency, auditability, threat modeling basics.
• Testing & Quality: Unit/integration/contract tests, load tests, CI/CD (Azure DevOps/GitHub).

• Azure Cognitive Services: Document Intelligence, Speech, Vision for multimodal AI.
• Azure AI Search advanced: Custom scoring profiles, multi-source ingestion (SharePoint, Blob).
• Observability for AI quality: hallucination detection, RAG evaluation (RAGAS/rubrics).
• Front-end integration: Blazor/React for streaming UX.
• Knowledge graphs: Neo4j/RDF for advanced retrieval.

#LI-DD3

What’s in it For You?

• Hybrid Work Model: We’ve adopted a flexible hybrid working environment (2-3 days a week in the office depending on the role) for our office-based roles while delivering a seamless experience that is digitally and physically connected.

• Flexibility & Work-Life Balance: Flex My Way is a set of supportive workplace policies designed to help manage personal and professional responsibilities, whether caring for family, giving back to the community, or finding time to refresh and reset. This builds upon our flexible work arrangements, including work from anywhere for up to 8 weeks per year, empowering employees to achieve a better work-life balance.

• Career Development and Growth: By fostering a culture of continuous learning and skill development, we prepare our talent to tackle tomorrow’s challenges and deliver real-world solutions. Our Grow My Way programming and skills-first approach ensures you have the tools and knowledge to grow, lead, and thrive in an AI-enabled future.

• Industry Competitive Benefits: We offer comprehensive benefit plans to include flexible vacation, two company-wide Mental Health Days off, access to the Headspace app, retirement savings, tuition reimbursement, employee incentive programs, and resources for mental, physical, and financial wellbeing.

• Culture: Globally recognized, award-winning reputation for inclusion and belonging, flexibility, work-life balance, and more. We live by our values: Obsess over our Customers, Compete to Win, Challenge (Y)our Thinking, Act Fast / Learn Fast, and Stronger Together.

• Social Impact: Make an impact in your community with our Social Impact Institute. We offer employees two paid volunteer days off annually and opportunities to get involved with pro-bono consulting projects and Environmental, Social, and Governance (ESG) initiatives.

• Making a Real-World Impact: We are one of the few companies globally that helps its customers pursue justice, truth, and transparency. Together, with the professionals and institutions we serve, we help uphold the rule of law, turn the wheels of commerce, catch bad actors, report the facts, and provide trusted, unbiased information to people all over the world.

About Us

Thomson Reuters 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.

We are powered by the talents of 26,000 employees across more than 70 countries, where everyone has a chance to contribute and grow professionally in flexible work environments. At a time when objectivity, accuracy, fairness, and transparency are under attack, we consider it our duty to pursue them. Sound exciting? Join us and help shape the industries that move society forward.

As a global business, we rely on the unique backgrounds, perspectives, and experiences of all employees to deliver on our business goals. To ensure we can do that, we seek talented, qualified employees in all our operations around the world regardless of race, color, sex/gender, including pregnancy, gender identity and expression, national origin, religion, sexual orientation, disability, age, marital status, citizen status, veteran status, or any other protected classification under applicable law. Thomson Reuters is proud to be an Equal Employment Opportunity Employer providing a drug-free workplace.

We also make reasonable accommodations for qualified individuals with disabilities and for sincerely held religious beliefs in accordance with applicable law. More information on requesting an accommodation here.

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More information about Thomson Reuters can be found on thomsonreuters.com