Snr Scientist II / Principal Scientist, In Vivo Biology & Translational Science

About Relation Relation is a sector defining TechBio company developing transformational medicines, with technology at our core. Our ambition is to understand human biology in unprecedented ways, discovering therapies to treat some of life’s most devastating diseases. We leverage single-cell multi-omics from patient tissue, functional assays, and machine learning to drive disease understanding, from cause to cure. We are scaling rapidly and building a team of exceptional individuals to push the boundaries of drug discovery. You will work in highly interdisciplinary teams where biology, computation, and engineering come together to solve complex problems that have not been solved before. Our state-of-the-art wet and dry labs in the heart of London are designed to accelerate this integration and translate insight into impact. We are committed to building diverse and inclusive teams. Relation is an equal opportunities employer and does not discriminate on the basis of gender, sexual orientation, marital or civil partnership status, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability, or age. By joining Relation, you will help define how medicines are discovered and deliver meaningful impact for patients. The opportunity Relation is offering an outstanding opportunity for a Senior Scientist II / Principal Scientist, In Vivo Biology & Translational Science to help drive our growing discovery portfolio. We are looking for an experienced in vivo biologist with a strong track record of independently leading outsourced work packages through CRO partnerships and translating data into actionable project decisions, initially in support of our osteoporosis programme with scope to contribute across indications as the portfolio grows. In this role, you will own the design, delivery, and interpretation of in vivo pharmacology work packages, partnering closely with CROs and cross-functional colleagues across medicinal chemistry, biologics, DMPK, and safety. You will work at the intersection of experimental science and data-driven discovery within a growing TechBio company. Day to day, you will Lead in vivo pharmacology strategy for projects within Relation's discovery programmes, proposing and championing the right study designs to support go/no-go decisions and milestone planning across multiple concurrent projects Drive the execution, monitoring, and interpretation of in vivo pharmacology studies across target engagement, PK/PD, and disease-relevant efficacy endpoints Own end-to-end CRO relationships for externally commissioned in vivo work packages: from vendor selection and SOW set-up through in-life liaison, data review, troubleshooting, and reporting Commission in vivo-relevant in vitro and ex vivo assays, such as target engagement, pharmacodynamic, and mechanistic readouts, that directly inform study decisions and data interpretation Translate biology data into clear, actionable insights and recommendations, communicating findings effectively to project teams and senior stakeholders Maintain rigorous documentation standards across outsourced study packages, including ELN, protocol authoring and review, and study reporting Champion Relation's collaborative, ambitious and science-driven culture, sharing scientific expertise across