Posted Oct 19, 2026

Sr. Data Analyst, MRD & Oncology Diagnostics

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About the position Quest Diagnostics is a leading clinical laboratory dedicated to providing innovative diagnostic information services. We are at the forefront of oncology diagnostics, leveraging advanced Next-Generation Sequencing (NGS) technologies to deliver life-changing insights. As we expand our offerings in Minimal Residual Disease (MRD) testing and early cancer detection, we are looking for a passionate Sr. Data Analyst to join our team. The Sr.Data Analyst will play a critical role in unlocking the value of complex genomic, clinical, and operational data. This role will work cross-functionally alongside Laboratory and Clinical Operations, R&D, and Bioinformatics to drive data-informed decisions that support the scaling and optimization of our MRD assays. The ideal candidate will have a strong analytical mindset, a deep understanding of laboratory data workflows, and a passion for improving patient outcomes through precision oncology. Responsibilities • Analyze complex datasets related to MRD assay performance, laboratory turnaround times, and clinical validity. • Design, build, and maintain automated dashboards to communicate key metrics to cross-functional stakeholders. • Partner with the R&D and Product Development teams to provide analytical support for the design, validation, and commercialization of new early-detection oncology and MRD assays. • Work closely with Bioinformatics engineers to analyze pipeline outputs and support the strategic scaling of robust data pipelines. • Ensure all data management and reporting processes align with strict regulatory standards (e.g., FDA, ISO, IEC). • Support documentation and risk management efforts as part of a robust Software Development Life Cycle (SDLC) for our NGS systems. • Identify bottlenecks in laboratory workflows and propose data-backed solutions to improve testing efficiency, accuracy, and scalability. Requirements • 3+ years of experience in data analysis, preferably within a clinical laboratory, biotech, academia or healthcare setting. • Familiarity with genomic data, bioinformatics workflows, and clinical assay validation. • Understanding of regulatory compliance frameworks (FDA, CLIA, CAP, ISO) and software quality standards. • High proficiency in querying and manipulating large datasets using SQL. • Strong programming skills in Python or R for statistical analysis and data modeling. • Experience with data visualization tools (e.g., Tableau, Power BI, Metabase). • Exceptional problem-solving skills and the ability to translate complex technical findings into clear, strategic business recommendations. • Strong communication and collaboration skills with a proven track record of working effectively across scientific, technical, and business teams. Nice-to-haves • Exposure to oncology diagnostics, NGS data, and/or MRD testing is highly preferred. Benefits • Day 1 Medical, supplemental health, dental & vision for FT employees who work 30+ hours • Best-in-class well-being programs • Annual, no-cost health assessment program Blueprint for Wellness® • healthyMINDS mental health program • Vacation and Health/Flex Time • 6 Holidays plus 1 "MyDay" off • FinFit financial coaching and services • 401(k) pre-tax and/or Roth IRA with company match up to 5% after 12 months of service • Employee stock purchase plan • Life and disability insurance, plus buy-up option • Flexible Spending Accounts • Annual incentive plans • Matching gifts program • Education assistance through MyQuest for Education • Career advancement opportunities