Senior Clinical Trial Associate - Oncology

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About Us ... Obsidian Therapeutics is pioneering engineered cell and gene therapies to deliver transformative outcomes for patients. Obsidian's programs apply our cytoDRiVE® technology in Cell and Gene therapy products to control expression of proteins for enhanced therapeutic efficacy and safety. Obsidian's lead program is currently in clinical development for the treatment of patients with metastatic melanoma and non-small cell lung cancer. We're proud of our diverse talented team and committed to cultivating an environment of inclusion where each person feels a strong sense of belonging and is supported to continuously learn and contribute their best work. Our Research team is based in the heart of Cambridge, MA, and Technical Operations team is based in our purpose built facility in Bedford, MA. Obsidianites enjoy a highly collaborative culture, competitive salary and benefits, and potential for ownership through stock options. Our Opportunity... We are looking for a highly motivated Senior Clinical Trial Associate , with a background in oncology clinical trials. As a key contributor within Clinical Operations , you'll help to drive the development of our first clinical stage autologous cell therapy t rial targeting solid tumors. You'll play a key role in driving the operational execution of complex clinical trials, supporting cross-functional coordination, vendor oversight, and ensuring high-quality, inspection-ready study delivery. As a member of our Clinical Operations Team , you will be a vital part of a highly collaborative organization working to achieve Obsidian's vision by translating innovative science into medical breakthroughs for patients starting with our lead program OBX-115, a novel engineered tumor-infiltrating lymphocyte (TIL) therapy. This is a unique opportunity to be a contributor in a well-funded clinical stage company with blue chip investors, field-leading advisors, best-in-class partners, and an experienced team. You'll help us build a dynamic, innovative, passionate, collaborative, and successful organization focused on delivering transformative therapies in areas of greatest clinical need. This is a Hybrid role based out of our Bedford, MA location . You Will... Core responsibilities Execute and support day-to-day clinical trial operations in alignment with protocols, timelines, and regulatory requirements. Serve as a key point of coordination across internal teams, CROs, and external partners. Maintain and oversee the Trial Master File (TMF), ensuring completeness, accuracy, and audit readiness. Lead TMF quality control activities and proactively address gaps. Support audits and inspections, including preparation and follow-up activities. Coordinate and oversee vendors, including central labs and specialty service providers. Manage biospecimen tracking, logistics, and associated documentation. Monitor vendor performance and escalate issues as needed. Develop, maintain, and improve study tracking tools (e.g., enrollment, sample tracking, timelines). Ensure data accuracy and timely reporting across study activities. Contribute to improvements in clinical operations processes and systems. Drive clear, timely communication across study teams and stakeholders. Plan and facilitate study meetings, including agenda development, minutes, and follow-up actions. Maintain version control and documentation across clinical materials. Support invoice tracking, purchase order coordination, and budget-related activities. You Bring... Core Qualifications BS/BA/RN Degree with 6+ years of experience in a life science or a health-related field is preferred. 3+ years working on phase I-IV clinical studies within a biopharmaceutical/biotech, CRO, or academic environment. Experience and understanding of clinical trial operations, preferably in oncology and/or cell therapy space. Solid knowledge of ICH/GCP and regulatory requirements. Excellent planning, coordination, and time management skills Excellent oral, written, and visual communication skills. You listen to understand and communicate effectively and persuasively with partners, colleagues, and leadership. Ability to bui ld and mai ntain productive relat ionships a t all levels within and across internal teams, and with external partners. Collaborative and accountable - recognizes success requires teamwork and interdisciplinary thinking; shares feedback and ideas to facilita te be tter outcomes Self-motivated, with a proven abi lity to me et objectives , timelines, and high standards managing multiple responsibilities in parallel. Flexible - adapts to change in a fast paced, rapidly developing environment Curious and humble - continuous learner, seeks and welcomes input/expertise of others Tenacious an d resi lie nt - is not easily overwhelmed by challenges, delivers on commitments , operates with urgency. Bonus Qualifications Proficiency in Microsoft Project or other project management programs. Obsidian

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