Protein Biochemist

Company DescriptionAntikor Biopharma Ltd is a biotechnology company specialising in the discovery and development of small-format Antibody (Fragment) Drug Conjugates (FDCs).

FDCs are an innovative approach to targeted chemotherapy, combining the precision of antibodies with the effectiveness of small-molecule drugs.

These smaller conjugates offer enhanced tumour penetration, improved safety and faster systemic clearance, promising a higher therapeutic index.

With a focus on advancing next-generation therapies for solid tumours, Antikor is particularly committed to developing treatments for gastrointestinal and other difficult-to-treat cancers.

Originally spun out from Imperial College, the company is headquartered with laboratories and offices in Stevenage, UK.In 2025, Antikor was acquired by Hong Kong listed, mid-sized biopharma company (Essex Biotechnology Ltd) who specialise in ophthalmology and regenerative medicine and are expanding into oncology.

Under this new partnership, Antikor has fresh ambitions as well as developing innovative, FDC-products for solid tumours.

Hence these are exciting and progressive times for Antikor.Role DescriptionAntikor Biopharma is seeking a full-time, on-site Protein Biochemist to join our team in Stevenage.

The Protein Biochemist will contribute to the development of novel FDCs through the design, execution, and analysis of biochemical and biophysical experiments.

Responsibilities include protein purification, performing quality control and analytical assays, protein chemistry and bioconjugation and collaborating with cross-disciplinary teams to drive scientific innovation.

The role also involves maintaining high compliance with laboratory standards and documenting experimental procedures and results.BenefitsCompetitive salary, including bonusesFlexible workingPension schemePrivate healthcareAccess to the GSK restaurant, shop, sports centre, shuttle bus to/from Stevenage station.Recruitment processApply through LinkedIn or send CV and short covering email to If you meet the criteria, we'll acknowledge you within 5 working daysFirst round will be online with Dr Deonarain and relevant team leaderShortlist drawn up and a formal interview, on-site (if possible), with a 10-minute, 5-slide PPT non-confidential presentation show-casing your experience, followed by Q&A.

Antikor will challenge you with various scenarios related to the postThe successful candidate will start ASAP, subject to noticesPlease note

We are not presently accepting applications from recruitersQualificationsPhD degree in Biochemistry or a related discipline with experience relevant to the position (e.g. protein chemistry, biophysical analysis, bio-conjugation) Preferably, at least 3 years’ post-doctoral experienceEssential skillsProficiency in Laboratory Skills, including a strong protein chemistry backgroundExperience in recombinant protein production (particularly E. coli)Strong experience in chromatography (RP, SEC, AC, IEX, HIC) and purification systems (Akta, HPLC)Strong experience in developing and validating analytical methods (SEC, DLS, uDSF, LC-MS, cIEF, SPR)Experience in protein bioconjugationUnderstanding of DMPK dataUnderstanding developability assessmentsExperience in working within a multi-disciplinary settingGeneral skills  Maintain a high level of knowledge and skills in technical R&D areas related to antibodies, antibody-drug-conjugates and analytical methods Communicate technical knowledge both internally and externally, with staff and collaborators at internal meetings, presentations and conferencesCarry out laboratory R&D using Good Laboratory and Safety Practice (GLSP)Produce robust and accurate experimental reports, have organised electronic data management, prepare SOPs, batch reports and internal/external study reports as requiredDemonstrate a high level of attention to detail and work to a high standardLiaise with contract research organisations and participate in multiple projects as requiredSelf-motivated with the ability to work independentlyEffective cross-functional interaction with other members of the Antikor teamTrack record of showing initiative and problem-solvingWell organised with the ability to prioritise work supporting multiple programsExperience in Quality Control and adherence to laboratory standardsStrong Analytical Skills, including data analysis and problem-solvingExperience in drug development or oncology research is an advantage