Biokemist

Do you have a strong interest in protein purification, chromatography, and bioprocess development? Do you want to contribute to the development of innovative purification technologies used in the production of life-saving biopharmaceuticals worldwide? Sunresin is establishing its European center for chromatography innovation in Uppsala, and is now looking for a Research Engineer, Chromatography Applications to join the growing team. In this role, you will play a key part in developing and optimizing chromatography applications for biopharmaceutical purification. This is a unique opportunity to become part of an exciting growth journey and help build a new application development function within a leading global organization. About the Role As a Research Engineer, Chromatography Applications, you will play a key role in developing and optimizing chromatography applications for purification of biopharmaceuticals. The position combines hands-on laboratory work with application and process development, focusing on purification strategies for antibodies and other biomolecules. You will support experimental design, process optimization, and application development in a collaborative and growing organization. This role offers the opportunity to work in an international environment and engage with customers, collaboration partners, and industry experts through conferences and industry events. Key Responsibilities: Develop and optimize applications within protein purification and chromatographic processes for biopharmaceutical applications. Plan, execute, and analyze laboratory experiments related to chromatography, separation, and purification processes, including troubleshooting and evaluation activities. Develop purification strategies for antibodies and other biomolecules using affinity chromatography, ion exchange chromatography, hydrophobic interaction chromatography (HIC), and multimodal chromatography. Operate and maintain chromatography systems and perform column packing activities. Design experiments and apply high-throughput methods for process and application optimization, including scale-up activities from laboratory (small) to pilot scale. Evaluate, document, and communicate experimental results to support development activities and customer projects. Represent Sunresin at international scientific conferences, customer meetings, and industry events, while strengthening Sunresin’s presence within the global biopharmaceutical community. Your Profile We are looking for a motivated and collaborative professional with a strong scientific foundation and hands-on experience in protein purification and chromatographic process development. You enjoy working both independently and as part of a team, and you are driven by solving technical challenges and continuously expanding your expertise. Qualifications: Degree in Biochemistry, Biotechnology, Chemical Engineering, Life Sciences, or a related field. At least 1 year of hands-on experience in protein purification and chromatography, including affinity chromatography, ion exchange chromatography, hydrophobic interaction chromatography (HIC), multimodal chromatography, and column packing/evaluation. Experience operating chromatography systems such as ÄKTA or equivalent platforms. Experience in experimental design and process development, including parallel high-throughput methodologies. Skilled in planning and executing experiments, as well as evaluating, documenting, and presenting results both orally and in writing. Strong written and verbal communication skills in English. Desirable qualifications: Experience from bioprocessing or biopharmaceutical development environments. Familiarity with monoclonal antibodies, antibody variants, or related biomolecules. Knowledge of process optimization, scale-up, and technology transfer activities. To succeed in this role, you are a positive, curious, and solution-oriented person with a genuine interest in learning and developing new skills. You enjoy solving technical challenges, working collaboratively with others, and contributing to a supportive team environment. With an analytical mindset and an open approach, you thrive in an international and collaborative setting and are motivated by continuous professional growth. Application Please submit your application no later than June 10, 2026. If you have any questions regarding the position or the recruitment process, please do not hesitate to contact recruiter Hanna Peterson at SallyQ - [email protected] About Sunresin Sunresin is a newly established Swedish subsidiary of a leading global manufacturer of chromatography resins, with annual revenues exceeding $360M. The company has a long-standing reputation for delivering high-quality solutions that enable the purification of biopharmaceuticals worldwide. The Uppsala site marks a strategic expansion, serving as the European hub for the development and production of agarose-based chromatography resins and affinity ligands. They are now building a high-performing team that combines research, development, and manufacturing capabilities under one roof. The site will play a central role in advancing resin chemistry, ligand development, and operational excellence, contributing to the global supply of critical materials for biopharmaceutical purification. Backed by the strength of a multinational group and driven by innovation at the local level, we are creating an environment where expertise, collaboration, and growth go hand in hand. Our mission is to provide cutting-edge purification technologies that support the development of life-saving therapies worldwide.

We are seeking for an experienced biochemist to join our R&D team and help drive product development of our 3-D sequencing technologies. The successful candidate will play a key role in developing, implementing, and refining Single Technologies’ biochemical and molecular workflows, pushing the boundaries of DNA analysis with unprecedented throughput. This is a bench-focused role with significant responsibility for product-facing deliverables, including reagent formulation, workflow optimization, and performance characterization. You will work in a truly international and multidisciplinary team spanning molecular biology, chemistry, bioinformatics, and engineering, helping translate concepts into robust, manufacturable products. Within our slim organization, you will have the opportunity to influence technical direction across multiple stages of product development. This is a full-time, permanent position based at our Stockholm headquarters. Responsibilities Design, develop, and optimize biochemical workflows and reagents for 3-D sequencing. Integrate and optimize chemistries and enzymatic methods to improve sequencing performance, robustness, and reproducibility. Design, execute, analyse and report on experiments supporting research and product development. Collaborate cross-functionally with hardware, chemistry, and software teams to ensure workflow compatibility with Single Technologies’ sequencing platform. Analyze complex datasets and contribute to data interpretation and workflow optimization using coding and computational tools. Support product-oriented development efforts, including reagent stability, scalability, and manufacturability. Prepare detailed documentation and present findings to project teams. Skills & Requirements PhD in Biochemistry, Molecular Biology, Chemical Biology, or a related field, with 3+ years of hands-on experience in assay development. Strong background in nucleic acid and/or protein biochemistry. Industry experience in sequencing product development, including reagent formulation, workflow optimization, and validation. Proven ability to design experiments, analyze data, and troubleshoot complex biochemical systems. Proficiency in computational analysis of biological datasets using Python, R, or MATLAB. Excellent written and verbal communication skills, and ability to collaborate effectively in multidisciplinary teams. Experience with image-based molecular detection, NGS-based readouts, and/or multiomics workflows is a plus. We offer a creative environment focused on technology and product development. We also offer a competitive compensation-package and plenty of room for self-development as the company expands. If above sounds like an exciting opportunity and you would like to hear more, do not hesitate and submit your application and we will get back to you! For inquires, please reach out to: [email protected] About Single Technologies AB Single Technologies is a Stockholm-based deep tech company aiming to transform the data generation in sequencing completely through our patented 3-D Sequencing™, a truly disruptive technology. Single was founded in 2014 as a unique combination of research from the Royal Institute of Technology and R&D in the fiber optical grating industry. A strong multidisciplinary team is pushing the limits of what the industry assumes is possible when it comes to sequencing and Big Data generation. Read more at: https://www.singletechnologies.com/