Eurofins Scientific is an international life sciences company, providing a unique range of analytical testing services to clients across multiple industries, to make life and our environment safer, healthier and more sustainable. From the food you eat, to the water you drink, to the medicines you rely on, Eurofins laboratories work with the biggest companies in the world to ensure the products they supply are safe, their ingredients are authentic and labelling is accurate. The Eurofins network of companies is the global leader in food, environment, pharmaceutical and cosmetic product testing and in agroscience Contract Research Organisation services. It is one of the market leaders in certain testing and laboratory services for genomics, discovery pharmacology, forensics, advanced material sciences and in the support of clinical studies, as well as having an emerging global presence in Contract Development and Manufacturing Organisations. It also has a rapidly developing presence in highly specialised and molecular clinical diagnostic testing and in-vitro diagnostic products. In over 30 years, Eurofins has grown from one laboratory in Nantes, France to 58,000 staff across a decentralised and entrepreneurial network of 900 laboratories in over 54 countries. Eurofins companies offer a portfolio of over 200,000 analytical methods to evaluate the safety, identity, composition, authenticity, origin, traceability and purity of biological substances and products. In 2021, Eurofins generated total revenues of EUR 6.72 billion, and has been among the best performing stocks in Europe over the past 20 years. PSF is seeking a highly skilled protein chemist with extensive experience in recombinant protein expression, purification, and characterization to support the Protein Structure and Function group at our client site in San Diego, CA. The primary responsibilities of this role include purifying recombinantly expressed proteins and antibodies. The ideal candidate will have experience in most or all of the techniques listed below. Employee Responsibilities: + Design and conduct experiments for purification processes of antibodies and recombinant proteins, both on a small and large scale. + Understand the quality requirements for proteins used in structural and functional studies, and develop protocols to deliver well-characterized proteins accordingly. + Review and optimize purification processes and methods to improve yields, reduce costs, and produce consistent products. + Analyze and capture experimental data using E-notebook, and share data in a timely manner. + BS or MS in Protein Science, Biochemistry, Molecular Biology, or a related field, with over three years of hands-on laboratory experience. Industrial experience is preferred. + Proficient in protein expression and purification technologies. Strong experience with protein purification techniques, including column chromatography (affinity, size exclusion, ion exchange, hydrophobic interaction, etc.), ultrafiltration, and dialysis. Familiarity with Cytiva AKTA FPLC system and Unicorn software is required. + Experience with analytical techniques, including UV-Vis spectroscopy, electrophoresis, western blotting, and mass spectrometry. + Detail-oriented and precise in routine lab practices. + Self-motivated with the ability to manage uncertainty, changes in priority, and timeline restrictions efficiently. + Capable of working independently as well as part of a team. + Excellent communication skills. Additional Skills/Preferences: + Experience in molecular biology techniques, including PCR, cloning, and gel electrophoresis. + Experience with various protein expression systems, including E. coli and baculovirus-infected insect cells, is desired. + Knowledge of biophysical techniques for protein characterization, such as mass photometry/spectroscopy, differential scanning fluorimetry (DSF), HPLC, isothermal titration calorimetry (ITC), and surface plasmon resonance (SPR), is a plus.   What we offer: + Excellent full time benefits including comprehensive medical coverage, dental, and vision options + Life and disability insurance + 401(k) with company match + Paid vacation and holidays + Career Development and continuing education opportunities + Compensation Range: $55,000 - $60,000/yr Position is full-time, 8am - 5pm with occasional overtime required.    Eurofins Lancaster Laboratories Professional Scientific Services® (PSS) is a global, award-winning insourcing solution that places our people at our clients’ site dedicated to running and managing laboratory services while eliminating headcount, co-employment and project-management worries. We infuse our 55-year track record of scientific and laboratory operations expertise, as well as HR and great place to work best practices, to recruit, hire, train and manage highly qualified scientists to perform laboratory services using our client’s quality systems and equipment. Eurofins USA PSS Insourcing Solutions is a M/F, Disabled, and Veteran Equal Employment Opportunity and Affirmative Action employer.