We're looking for a Bioprocess Lead to join our awesome team. Location: proudly onsite, in person, in Old Street, London You’ll play a key role in shaping the future of cultivated fat production by leading the design, optimisation, and scale-up of bioprocesses from bench through to industrial scale. Working closely with engineers, biologists and software experts, you’ll drive process development and integration of novel bioreactor designs, ensuring our technology is ready for our next-generation manufacturing facility. This role offers both technical depth and leadership responsibility – guiding experimental strategy, mentoring colleagues and setting direction for scale-up operations. What you’ll do Lead the development and optimisation of scalable bioprocesses for cultivated fat production Design, implement, and validate processes for novel bioreactor formats and monitoring systems Scale operations from bench and pilot scale through to industrial (>1000L) production Hands-on contribution for innovation and troubleshooting of upstream and downstream processes Optimise downstream operations to maximise harvest efficiency and throughput Oversee sterile operations, process control and analytical instrumentation strategies Write, review and maintain SOPs and technical documentation to enable robust operations Mentor engineers and technicians, sharing expertise in process design and scale-up Collaborate across software and hardware teams to integrate innovative instrumentation and automation technologies What we’re looking for Master’s degree (or equivalent experience) in biochemical engineering, cell biology, biomanufacturing, or related discipline At least 6 years experience in bioprocess development and scale-up in an industrial setting Hands-on expertise with mammalian cell culture in suspension bioreactors Proven experience scaling processes to pilot and industrial scales (1000L) Track record of developing and transferring processes into novel bioreactor designs Strong background in sterile operations, process monitoring, and analytical instrumentation Ability to lead projects, coordinate cross-functional teams, and mentor colleagues Enthusiasm, curiosity, and a drive to engineer biology at scale Bonus points for experience with: Multiple bench- and pilot-scale bioreactor systems Large-scale sterile media preparation and utilities for GMP environments Tech transfer and validation of processes into manufacturing facilities R&D project leadership and cross-team collaboration ELNs, LIMS and data-driven process optimisation Why join us? Combine deep technical work with team leadership to meet ambitious scale-up goals in a brand new industry Work alongside expert hardware and software teams to implement a novel bioreactor platform for food and biotech Join a fast-paced startup culture that values responsibility, agency and technical excellence Perks & benefits Stock option plan ️ Beautiful office and lab near Old Street Weekly socials and events ❤️ Private health insurance Pension plan (matching up to 5% salary sacrifice) ️ 25 days' holiday bank holidays ️ Lots of tasty food About Hoxton Farms Hoxton Farms grow cultivated pork fat, a healthy and delicious ingredient for the food industry. Cofounded in 2020 by Max Jamilly and Ed Steele, we are building the world's most scalable and cost-effective tech stack for mammalian cell biomanufacturing – and we’re monetising it with a premium B2B ingredient. Hoxton Farms are a team of 50 based in London. We have raised from investors including Founders Fund, Collab Fund, FSV/F-Prime and Global Brain. Healthy fats. B2B cultivated fat is fast to market and will dominate a premium niche. Compared to traditional fat, cultivated pork fat is healthier and more scalable. Hoxton Farms have commercial traction with meat/CPG companies including some of the largest food companies in Asia. Cost and scale. Hoxton Farms have patented scalable, low-cost, high-yield bioreactors for mammalian stem cells. We opened a pilot production facility in London in 2023. Team. Hoxton Farms have a brilliant and friendly team including world-class talent from the cultivated meat, biotech and engineering industries – all under one roof in central London. Hoxton Farms is an equal opportunity employer committed to providing a working environment that embraces inclusion, diversity and belonging. If you believe you would add value to our company but don’t meet all the criteria, we would still love to hear from you. We especially encourage applications from female, LGBTQIA, disabled and Black, Asian and Minority Ethnic (BAME) candidates, as these groups are underrepresented in the tech industry.