Work Schedule Standard (Mon-Fri) Environmental Conditions Laboratory Setting Job Description At Thermo Fisher Scientific, you’ll discover meaningful work that makes a positive impact on a global scale. Join our colleagues in bringing our Mission to life - enabling our customers to make the world healthier, cleaner and safer. We provide our teams with the resources needed to achieve individual career goals while taking science a step beyond through research, development and delivery of life-changing therapies. With clinical trials conducted in 100 countries and ongoing development of novel frameworks for clinical research through our PPD clinical research portfolio, our work spans laboratory, digital and decentralized clinical trial services. Your determination to deliver quality and accuracy will improve health outcomes that people and communities depend on – now and in the future. Our PPD® Laboratory Services team has a direct impact on improving patient health through the expertise of scientists, industry thought-leaders and therapeutic experts. As the world leader in serving science, our laboratory professionals bring their commitment to accuracy and quality to deliver groundbreaking innovations. We are seeking a highly motivated Protein Scientist with a strong interest in molecular biology, protein engineering, and innovative technologies to join the Protein and Cell Sciences to be based at our client site in Stevenage, UK. You will join a team that plays a central role in the design, production, and validation of high‑quality biological reagents that enable drug discovery across a range of therapeutic modalities. This is a fully lab‑based role focused on molecular biology, protein expression, and purification workflows. The successful candidate will be an organised, proactive experimental scientist with excellent communication skills and the ability to work effectively both independently and within multidisciplinary teams. Key Responsibilities Design and perform molecular cloning across diverse expression systems using contemporary cloning methods. Isolate and purify plasmid DNA using both manual and automated approaches. Analyse Sanger and NGS sequencing data to verify construct integrity. Provide scaled‑up plasmid DNA to support departmental needs. Express and purify protein reagents for a variety of downstream applications. Maintain accurate, detailed experimental records in laboratory notebooks and data systems. Evaluate emerging technologies and contribute to optimisation of existing protocols to improve workflow efficiency and accelerate delivery timelines. Work effectively both independently and as part of multidisciplinary matrix teams. Essential Skills & Experience Degree in Life Sciences (or equivalent) with 1 years of laboratory experience, ideally within the pharmaceutical or biotechnology sector. Demonstrated experience in molecular biology, including PCR and primer design, cloning methodologies, DNA purification, agarose gel electrophoresis Good understanding of mammalian expression systems and protein purification techniques. Strong analytical and data interpretation skills. Excellent organisational skills with ability to manage workload and meet agreed timelines. Proven flexibility, collaborative mindset, and strong teamwork abilities. Strong written and verbal communication skills. Exemplary record‑keeping and attention to detail. Desirable Skills Experience with molecular biology design and analysis software tools. Additional experience with Sanger and NGS data analysis. Hands‑on experience with laboratory automation and medium–high‑throughput workflows. Familiarity with aseptic technique. Experience using ÄKTA purification systems. Why Join Us? When you join Thermo Fisher Scientific, you become part of a global team that values passion, innovation, and a commitment to scientific excellence. You’ll work in an environment where collaboration and development are part of the everyday experience – and where your contributions truly make a difference. Apply today to help us deliver tomorrow’s breakthrough.