Hiring: Lead Research Engineer, Search & Retrieval Company: Thomson Reuters Location: Frisco, TX Job Posted Time: 2026-09-09 17:58:15 Employment Type: Full-time Target Skills & Keywords: Search & Retrieval, OpenSearch, Vespa, Ranking & Re-ranking, Hybrid Retrieval, Semantic Retrieval, RAG Pipelines, Agentic AI, Query Understanding, Ingestion & Indexing Pipelines, Applied Research, Experimentation, Ablation, Technical Leadership Experience: - Proven experience launching, operating, scaling, and debugging search systems — not just building them - Track record of measuring whether systems actually improved retrieval quality - Experience acting as technical lead for a squad of 3–5 engineers - End-to-end ownership of significant search and retrieval projects, from exploration through productionization Required Skills: - Design and build retrieval architectures, ingestion and indexing pipelines, and ranking/re-ranking systems on OpenSearch and Vespa - Build retrieval infrastructure for agentic AI workflows, including tool-facing retrieval APIs, agentic query planning, multi-step retrieval, RAG pipelines, hybrid and semantic retrieval, and query understanding - Rigorous experimentation: baselines, ablations, and controls; isolate variables and interpret metrics honestly - Run the exploration → POC → proof of value → productionization loop - Build with AI tooling and apply healthy skepticism to outputs from coding agents - Strong communication — explain work to engineers, scientists, and product stakeholders; defend design choices and update on evidence Qualifications: - Unusually rigorous with evidence; strong experimental taste for which experiments are worth running - Self-directed: able to identify the most impactful next step on a messy project and execute - Comfortable partnering closely with applied scientists, building on their models and research directions, and feeding production evidence back into the science - Accountable for outcomes, quality, timelines, and the health of live systems - Able to set direction, break down work, review designs and code, and unblock a team Compensation: Not specified in the job posting. Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don’t miss this opportunity to join a forward-thinking team!