Senior Software Engineer - AI, CoCounsel FDE

Are you a hands-on AI engineer who wants to build the next generation of legal AI solutions from the ground up? Thomson Reuters is hiring a Senior Software Engineer - AI on our CoCounsel Forward Deployed Engineering team. In this role, you will help design, build, and deploy bespoke AI solutions for law firms and corporate legal departments, turning architectural direction into robust, production-ready systems that legal professionals can trust. You'll work closely with AI architects, legal AI experts, and cross-functional partners to deliver high-impact solutions that shape how legal work gets done. About the Role In this opportunity as Senior Software Engineer - AI, you will: Design and implement AI-powered solutions tailored to legal workflows such as contract review, litigation support, discovery automation, and regulatory analysis. Build scalable, secure, and maintainable AI systems within architectural frameworks defined by the AI Solutions Architect, including RAG pipelines, custom agents, and enterprise integrations. Develop and configure multi-step agentic workflows using CoCounsel, Westlaw, Practical Law, third-party AI APIs, and enterprise systems. Implement observability, evaluation, and quality controls for production AI systems, including monitoring, tracing, benchmarking, and red-teaming protocols. Participate in technical discovery with clients and lega [... source excerpt omitted ...] rong foundation in system design, distributed systems, and clean architecture. At least 2 years of hands-on experience building and deploying AI/ML or LLM-powered applications in production. Strong proficiency in Python and backend engineering, with experience building RESTful APIs, async services, and event-driven systems. Experience with orchestration frameworks such as LangChain, LangGraph, PydanticAI, or AutoGen, along with solid understanding of RAG architectures and vector databases. Experience with cloud platforms such as AWS, Azure, or GCP, plus familiarity with Infrastructure as Code, CI/CD practices, and secure API development. Experience with observability and AI ev [... source excerpt omitted ...] on tooling such as Datadog, Grafana, Prometheus, LangSmith, Langfuse, Braintrust, or Weights & Biases. Strong communication skills and comfort working independently in ambiguous, client-facing environments, including collaboration with legal professionals and non-technical stakeholders. #LI-LP2 What’s in it For You? 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, empoweri