Fixed-term

Do you want to contribute to top quality medical research? Our research group is dedicated to studying immune markers in the female genital mucosa and their role in susceptibility to sexually transmitted infections. We utilize advanced molecular biology techniques to examine mucosal samples. Your mission Perform experimental handling of mucosal samples, including immunohistochemistry staining, scanning and evaluation. Conduct computational analysis and illustration of data derived from these experiments, focusing on the quantification of phenotypic cell markers and mucosal structural markers. Your profile We are seeking a candidate with the following qualifications: Required: Knowledge and practical experience in using R for systems biology analysis. Experience in preparing tables and figures for scientific publications. Experience in immunohistochemistry staining and scanning, bioimaging analysis, and computational data processing from these assays. Valued: Additional experience in assessing human mucosal samples using methods such as dissection and tissue culture. What do we offer? A creative and inspiring environment with wide-ranging expertise and interests. Karolinska Institutet is one of the world’s leading medical universities. Our vision is to pursue the development of knowledge about life and to promote a better health for all. At Karolinska Institutet, we conduct successful medical research and hold the largest range of medical education in Sweden. Karolinska Institutet is also a state university, which entitles you to several good benefits through our collective agreement. And you get to practice freely in our modern wellness facilities, where trained staff are on site. Location The position is located within the Department of Medicine, Solna. The department consists of ten divisions and each division consists of several research groups. The position is located within the research group Broliden at the Division of Infectious Diseases. Application The application is to be submitted through the Varbi recruitment system.In this recruitment, you will apply with your CV without a personal letter. Instead, you will answer some questions about why you are applying for the job in the application form. Want to make a difference? Join us and contribute to better health for all Apply Now

Do you want to contribute to top quality medical research?  The Department of Laboratory Medicine consists of seven divisions and is active in many areas of Laboratory Medicine. The department is involved in advanced basic scientific, clinical and epidemiological research. The department is one of the largest departments of education at Karolinska Institutet. Division The Department of Laboratory Medicine consists of seven divisions that conduct both research and teaching. The department is involved in advanced research, encompassing both basic and applied research. All divisions operate in close collaboration with clinicians at the Karolinska University Hospital. The Division of Biomolecular and Cellular Medicine (BCM) focuses on the use of modified biomolecules, cells, and cell products as new therapeutic agents, as well as the identification and study of suitable biomolecular and cellular targets for therapy and diagnostics. The division is also connected to the Karolinska ATMP Center. Our research efforts in the EL Andaloussi lab focus on one of the greatest challenges facing modern therapeutics; the delivery of macromolecules to target cells in vivo. Despite the unprecedented knowledge of diseases and their mechanisms due to advances in biomedical sciences; many promising therapeutic approaches are still clinically unavailable. This is simply because there is no efficient means of delivering these therapeutics to the right organ with the right dose. Our research performance involves developing novel and innovative drug delivery technologies that can carry proteins, RNAs, or gene editors to the target tissues safely and efficiently. One of the delivery modalities that we exploit is extracellular vesicles (EVs); natural nanoparticles that are able to convey genetic material from one cell to another. We have developed a range of genetic engineering strategies to modify EVs for the purpose of drug delivery. In addition to EVs, the EL Andaloussi lab also engineers various conjugates for extrahepatic delivery of oligonucleotide-based therapeutics. This is achieved either through bioconjugation of small molecular ligands or larger biologics such as nanobodies or antibodies. This project aims to develop novel bioconjugates for organ-targeted delivery of oligonucleotides and to uncover the molecular determinants of tissue and cell tropism. Duties As a postdoctoral researcher with scholarship, you will work closely with other team members to design and implement strategies for the targeted delivery of various oligonucleotide cargoes (e.g., ASOs, siRNAs). A central aspect of the role involves evaluating different targeting ligands and conjugation chemistries to develop RNA conjugates capable of reaching specific organs and tissues following in vivo delivery. You will also develop and optimize methods to assess the activity of these conjugates, examining how their physicochemical properties influence systemic distribution and performance. Ultimately, the rational design of conjugates will be correlated with their targeting and delivery efficiency in both in vitro and in vivo models using relevant cell systems and animal studies. Entry requirements Postdoctoral scholarships may be established for foreign researchers who pursue their merit in Sweden. A foreign researcher is a person living in another country who comes to Sweden with the intention of only staying in Sweden for all or part of their postdoctoral education at KI. Persons who are resident in Sweden and/or have carried out all or part of their academic education at KI or some other educational institution in Sweden cannot be considered for scholarships. The purpose of scholarships for postdoctoral qualification is to promote internationalization and contribute to research qualification after a doctorate or equivalent. A scholarship for carrying out postdoctoral research can be granted for a maximum of two years within a four-year period following the receipt of a doctoral degree or equivalent. To be eligible for a postdoctoral scholarship, the person must have obtained a doctorate, or a foreign degree deemed to be equivalent to a doctorate. Applicants who have not completed a doctorate at the end of the application period may also apply, provided that all requirements for a completed degree are met before the (intended) start date of the post-doctoral education. We are seeking a highly motivated scientist with a strong background in oligonucleotide conjugate delivery and in vivo biodistribution studies. Key areas of expertise: In vitro characterization Develop and implement methods to characterize the physicochemical properties of oligonucleotide conjugates. Utilize in vitro screening models to assess potency and delivery efficiency of oligonucleotide conjugates. Preferred but not required: Investigate mechanisms of intracellular uptake and endosomal escape, including development of novel analytical methods. Laboratory animal science Extensive hands-on experience in mouse handling, including administration routes (e.g., IV, IP) and surgical procedures relevant to delivery studies. Strong understanding of ethics, approved procedures, and animal welfare; meticulous record-keeping and regulatory compliance. Proven track record in evaluating biodistribution of oligonucleotide-based modalities in mouse models. Preferred but not required: Experience with toxicity studies and in vivo imaging (e.g., IVIS, bioluminescence, fluorescence). Molecular and cellular biology expertise: Proficiency in mammalian cell culture and transient transfections. Expertise in quantitative assays to evaluate the outcome of in vitro and in vivo studies related to oligonucleotide delivery, such as gene expression analysis (RT-qPCR) or oligonucleotide detection methods (e.g., dPCR, SplintR). Preferred but not required: Experience with flow cytometry for tissue/cell uptake analysis, single-cell sorting, and RNA sequencing. In addition, excellent proficiency in both spoken and written English is essential. We are looking for an energetic and passionate individual who actively contributes to our team and thrives in a collaborative environment. Strong interpersonal and communication skills are required, along with the ability to work independently and manage multiple tasks. Meticulous attention to detail, excellent documentation practices, and a proactive approach to troubleshooting are highly valued. What do we offer? A creative and inspiring environment with wide-ranging expertise and interests. Karolinska Institutet is one of the world’s leading medical universities. Here, we conduct innovative medical research and provide the largest range of biomedical education in Sweden. At KI, you get to meet researchers working with a wide range of specialisms and methods, giving you ample opportunity to exchange knowledge and experience with the various scientific fields within medicine and health. It is the crossover collaborations, which have pushed KI to where it

Do you want to contribute to top quality medical research? The Andersson-Rolf lab is seeking a motivated and enthusiastic lab manager to join our team. Join the Andersson-Rolf lab to investigate the role of cell identity in bridging developmental mechanisms with those underlying adult pancreatic regeneration and pathology. By developing and applying primary human adult and fetal pancreatic organoid models in combination with (spatial) omics, genome- and bioengineering we seek to leverage insights from developmental biology to decipher the mechanisms of adult pancreatic regeneration and disease. The Andersson Rolf lab is part of the Department of Medical Biochemistry and Biophysics (MBB),one of the largest departments at Karolinska Institutet. MBB performs basic research and education in neuroscience, cell biology, molecular and genome biology, cancer biology, as well as stem cell and developmental biology to understand fundamental cellular processes and how dysfunction in these processes can cause disease. MBB is located in the beautiful new Biomedicum research center, along with four other departments. You will join a vibrant community of over a thousand researchers, with outstanding facilities and a wide range of talents. Biomedicum is situated close to both the Karolinska University Hospital (for clinical collaborations) and the Science for Life Laboratory, a national research infrastructure of unique technologies. Your mission We are looking for a highly engaged, well organised, flexible and curious team player who is willing to lead organisational tasks as well as contribute to the lab’s ongoing research. As a lab manager you will work in close collaboration with the PIs, PhD students, postdocs, and other researchers to help shape a well-functioning collaborative laboratory environment. You will to contribute the following: lab managerial and administrative tasks organisation ordering and invoicing scheduling writing ethics applications some specialised laboratory tasks 2D and 3D cell culture, Molecular biology, Sectioning (cryosectioning and histology), Protein stainings involving samples from human patients and/or animal models. You will collaborate closely with experts in organoid technology and bioengineering, contribute to general team tasks, and work in a highly interdisciplinary, diverse and international environment. The working language is English. Your profile We are looking for a motivated, creative, and curious colleague with good communication and organisational skills who enjoys working with people and take pride in delivering work of good quality. We are looking for someone who wants to stay with us long term. The job will include a diverse set of tasks, including helping to write ethical protocols, general laboratory tasks (ordering, invoicing, etc.), sample organization, and scheduling. Requirements: A degree in laboratory or biological sciences Experience or strong interest in lab managerial tasks (including ordering, invoicing, and lab safety) Experience in lab organisation Experience of experimental work (as the lab performs a range of different methods, different profiles will be considered) Demonstrated commitment to solving problems and promoting a good working environment Good interpersonal skills and ability to work in a team. Good sense of responsibility. Merits (not required) Experience in cell culture Experience in molecular biology, single-cell/spatial transcriptomics Experience coordinating patient sample collection Experience in cryosectioning Expertise in protein staining/IHC/IF Experience in teaching Experience working in international and diverse environments’ Fluency in written and spoken Swedish What do we offer? A creative and inspiring environment with wide-ranging expertise and interests. Karolinska Institutet is one of the world’s leading medical universities. Our vision is to pursue the development of knowledge about life and to promote a better health for all. At Karolinska Institutet, we conduct successful medical research and hold the largest range of medical education in Sweden. Karolinska Institutet is also a state university, which entitles you to several good benefits through our collective agreement. And you get to practice freely in our modern wellness facilities, where trained staff are on site. Location:Solna Link for more information regarding the Unit: Medical systems bioengineering unit Application Welcome to apply at the latest 2026-02-14 An employment application must contain the following documents in English: A complete curriculum vitae, including previous academic positions, academic title, current position, and academic distinctions. A complete list of publications, if relevant. A short motivation letter (in English and no more than one page). The application is to be submitted through the Varbi recruitment system. Want to make a difference? Join us and contribute to better health for all Apply Now

Do you want to contribute to improving human health? This postdoc position will offer the opportunity to join a translational research team to work on aspects of Bruton’s Tyrosine Kinase (BTK) ranging from the use of BTK inhibitors for treatment of lymphoid malignancies to curative gene correction in immunodeficiency patients. The postdoc will work in the interphase between Associate professor Robert Månsson and Professor Edvard Smith’s groups at Karolinska Institutet and Clinical teams at Karolinska University Hospital. The successful candidate will join our team at the Department of Laboratory Medicine at Karolinska Institutet. Duties The postdoc position will be within a translational research constellation study aspects of  Bruton’s Tyrosine Kinase (BTK) biology ranging from understanding thein vivoeffects and efficacy of BTK inhibitors in patients with lymphoid malignancies, to the BTK inhibitor effects on the tumour microenvironment in model organisms, and the curative gene correction of immunodeficiency patients carrying mutations in the BTK gene. The candidate is expected to participate in experimental design, logistics, sample processing, experimentation, data analysis, documentation, presentation and publication of results. The candidate is expected to work as a bridge between the groups in the translational research constellation. In addition, the candidate is expected to join research-related activities such as group meetings, departmental seminars, national/international meetings, as well as take part in routine work within our research team and help supervise students within the group. Entry requirements We are seeking a highly motivated postdoctoral researcher with a strong desire to pursue translational research focused on Bruton’s Tyrosine Kinase (BTK) central role in the treatment of lymphoid malignancies using BTK inhibitors and taking steps towards curative gene correction in immunodeficiency patients. The candidate applying must have a PhD degree in biomedicine, molecular medicine, molecular biology, gene technology, immunology, stem cell biology or a related discipline. Expertise in experimental haematology, transplantation models, advanced flow cytometry, sequencing based molecular biology (“omics”) and/or bioinformatics is required to become a successful candidate. Emphasis will be placed on personal suitability and compatibility with lab members and the overall research team. Applicants must have good communication skills in English, be able to drive his/her own project and work within a research team. Postdoctoral scholarships may be established for foreign researchers who pursue their merit in Sweden. A foreign researcher is a person living in another country who comes to Sweden with the intention of only staying in Sweden for all or part of their postdoctoral education at KI. Persons who are resident in Sweden and/or have carried out all or part of their academic education at KI or some other educational institution in Sweden cannot be considered for scholarships. The purpose of scholarships for postdoctoral qualification is to promote internationalization and contribute to research qualification after a doctorate or equivalent.A scholarship for carrying out postdoctoral research can be granted for a maximum of two years within a four-year period following the receipt of a doctoral degree or equivalent.To be eligible for a postdoctoral scholarship, the person must have obtained a doctorate, or a foreign degree deemed to be equivalent to a doctorate. Applicants who have not completed a doctorate at the end of the application period may also apply, provided that all requirements for a completed degree are met before the (intended) start date of the post-doctoral education. The head of the department determines whether their previous training and scholarly qualifications correspond to a Swedish doctorate or higher. What do we offer? A creative and inspiring environment with wide-ranging expertise and interests. Karolinska Institutet is one of the world’s leading medical universities. Here, we conduct innovative medical research and provide the largest range of biomedical education in Sweden. At KI, you get to meet researchers working with a wide range of specialisms and methods, giving you ample opportunity to exchange knowledge and experience with the various scientific fields within medicine and health. It is the crossover collaborations, which have pushed KI to where it is today, at the forefront of global research. Several of the people you meet in healthcare are educated at KI. A close relationship with the health care providers is important for creating groundbreaking top quality education and research. Students and employees have free access to our modern gym facilities with trained staff on site. Location: The postdoc will be conducted at the Department of Laboratory Medicine at Karolinska Institutets southern campus. The Department consists of seven division working on diverse topics ranging from immunology and theraputic gene correction to pathology and physiology The postdoc will be embedded in the research team of Associate professor Robert Månsson at the Division for Clinical Immunology and in addition work closely with the research team of Professor Edvard Smith as well as clinical constellations at the Karolinska University Hospital. English is the working language of the group. The Karolinska Institutet is one of the centers of excellence for biomedical research in the world (ranked as 8th in the world in Life Sciences and Medicine by QS World University Ranking). Stockholm is a vibrant international city offering a high living standards, access to a sprawling city life as well as the beautiful nature surrounding the city. https://ki.se/en/research/research-areas-centres-and-networks/research-groups/robert-mansson-group https://ki.se/labmed/forskning-pa-institutionen-for-laboratoriemedicin/forskargruppsledare-pa-labmed-a-o/enheten-for-molekylar-cellbiologi-och-genterapiforskning https://ki.se/en/labmed/about-us/divisions Type of scholarship The amount is tax free and it is set for twelve months at a time, paid out on a six months basis. In exceptional cases, shorter periods may be acceptable. Application process An application must contain the following documents in English or Swedish: A complete curriculum vitae, including date of the thesis defence, title of the thesis, previous academic positions, academic title, current position, academic distinctions, and committee work A complete list of publications A summary of current work (no more than one page) The application is to be submitted on the Varbi recruitment system. Want to make a difference? Join us and contribute to better health for all Apply Now

Do you want to contribute to improving human health? The Division of Molecular Metabolism at Karolinska Institutetis located in the newly built Biomedicum at the Solna campus. The division offers a highly collaborative research environment that integrates basic molecular research with clinical science, including close interaction with the Centre for Inherited Metabolic Diseases (CMMS) at Karolinska University Hospital. Researchers have access to advanced molecular and cell biology infrastructure, complemented by national core facilities at Science for Life Laboratory (SciLifeLab). We are currently seeking a highly motivated postdoctoral researcher to join the research group of Professor Anna Wredenberg. Our research focuses on understanding the regulation of mitochondrial function and how mitochondrial dysfunction contributes to human disease and aging. By combining genetic, biochemical, structural, and systems-level approaches with animal models and patient-derived material, we aim to uncover disease mechanisms and identify novel therapeutic strategies. The Wredenberg Group The Wredenberg group conducts research at the interface of basic and translational mitochondrial biology, with a particular focus on mitochondrial gene expression and the molecular consequences of metabolic dysfunction in patients with inherited metabolic and mitochondrial diseases. A current major research direction is understanding how mitochondria integrate into cellular and organismal metabolism, including the role of mitochondrial S-adenosylmethionine (SAM)in diverse mitochondrial processes. We employ a broad range of genetic, biochemical, and omics-based approaches, working with genetically modified Drosophila melanogaster and mouse models, as well as patient-derived samples from individuals with inborn errors of metabolism. Learn more about the group at:The Wredenberg Lab – Stockholm Your mission As a postdoctoral researcher, you will lead and contribute to projects aimed at: Investigating molecular mechanisms of mitochondrial gene expression, and/or Dissecting the interplay between mitochondrial function and cellular metabolism in health, disease, and aging. You will work within a small, interactive team using biochemistry, molecular biology, modern omics approaches, and structural methods. The projects involve in vivo models, including genetically engineered and conditional knockout mouse or fly strains, and may include patient-derived material. You are expected to take an active role in experimental design, data analysis, and dissemination of results. Your profile To be eligible for employment as a postdoctoral researcher, a PhD or a foreign degree deemed to be equivalent to a Swedish PhD is required. This eligibility requirement must be fulfilled at the latest at the time of the employment decision. Completion of your doctoral degree within the last three years is considered an advantage. If there are special reasons, your degree may have been completed earlier. We are looking for enthusiastic and motivated candidates who have: Required A PhD in molecular biology, genetics, or a related field Documented experience working with mouse models Excellent communication skills in spoken and written English Meriting Experience in mitochondrial biology Expertise in biochemistry, molecular biology, or omics approaches A collaborative mindset and strong documentation skills Personal suitability and the ability to work well within a team will be given significant weight in the evaluation. Entry requirements Postdoctoral scholarships may be established for foreign researchers who pursue their merit in Sweden. A foreign researcher is a personliving in another country who comes to Sweden with the intention of only staying in Sweden for all or part of their postdoctoral education at KI. Persons who are resident in Sweden and/or have carried out all or part of their academic education at KI or some other educational institution in Sweden cannot be considered for scholarships.The purpose of scholarships for postdoctoral qualification is to promote internationalization and contribute to research qualification after a doctorate or equivalent.A scholarship for carrying out postdoctoral research can be granted for a maximum of two years within a four-year period following the receipt of a doctoral degree or equivalent.To be eligible for a postdoctoral scholarship, the person must have obtained a doctorate, or a foreign degree deemed to be equivalent to a doctorate. Applicants who have not completed a doctorate at the end of the application period may also apply, provided that all requirements for a completed degree are met before the (intended) start date of the post-doctoral education. What do we offer? A creative and inspiring environment with wide-ranging expertise and interests. Karolinska Institutet is one of the world’s leading medical universities. Here, we conduct innovative medical research and provide the largest range of biomedical education in Sweden. At KI, you get to meet researchers working with a wide range of specialisms and methods, giving you ample opportunity to exchange knowledge and experience with the various scientific fields within medicine and health. It is the crossover collaborations, which have pushed KI to where it is today, at the forefront of global research. Several of the people you meet in healthcare are educated at KI. A close relationship with the health care providers is important for creating groundbreaking top quality education and research. Students and employees have free access to our modern gym facilities with trained staff on site. Location:Karolinska Institutet, Biomedicum, Solna, Sweden Type of scholarship The amount is tax free and it is set for twelve months at a time, paid out on a six months basis. In exceptional cases, shorter periods may be acceptable. Application process An application must contain the following documents in English or Swedish: A complete resumé (max 2 pages) A complete list of publications A personal motivation letter explaining your research interest (max 1 page) Contact information of at least two references The application is to be submitted on the Varbi recruitment system. Want to make a difference? Join us and contribute to better health for all Apply Now

Do you want to contribute to top quality medical research? The Esophageal and Gastric Cancer Research Group at the Division of Surgery and Oncology at the Department of Clinical science, Intervention and Technology (CLINTEC) has a comprehensive program of translational research in collaboration with Andrea Ponzetta’s Research Group Unconventional T cells in human pathology, which is part of the Center for Infectious Medicine (CIM). CIM is a leading research unit in translational studies of the human immune system in the context of chronic inflammation, infectious diseases and cancer. This ongoing translational research collaboration aims to develop and implement innovative treatments for gastric and esophageal cancer. The research assistant we are seeking will work in the Ponzetta Team lab at CIM, offering an engaging research environment where you may contribute to high quality research at international level. The project will build on samples collected within the recently initiated IPaGastric trial to investigate immune variation during therapy and its relationship to treatment outcomes. Using state-of-the-art technologies, including high-dimensional flow cytometry, single-cell transcriptomics and proteomics, the project aims to advance our understanding of antitumour immune responses and identify biomarkers for improved patient stratification and treatment efficacy. Your mission We are looking for a research assistant who will be working together with PhD students, postdocs and research nurses in a translational project linked to a multicentric clinical trial aimed at assessing the clinical efficacy of local chemotherapy administration in gastric cancer patients with peritoneal metastases. The project consists in the longitudinal immune monitoring of patients undergoing treatment to identify prognostic and predictive biomarkers of therapy response. Experimental duties will include the isolation and functional characterisation of immune cells, with a particular focus on the peritoneal fluid. The position is a temporary employment for one year. Some of your main responsibilities will include:  Isolation and storage/biobanking of cells from fresh human blood and tissues collected from cancer patients. Immune characterization of collected samples by flow cytometry, scRNAseq and proteomics. Your profile Required qualifications: Master’s degree in Medical Science, Immunology or equivalent at the latest by the employments start. Experience in cell isolation from human blood or tissues, culturing of primary cells, DNA/ RNA isolation and data analysis. Previous experience with multiparametric flow cytometry/ cell sorting. Excellent organizational skills. Good knowledge in English, both written and spoken. Meritorious qualifications Experience in working with immune cells, particularly T cells. Previous contribution to scientific publications. As a person, you are self-driven and approach tasks with structure and professionalism. You see opportunities in change and can quickly adapt to shifting circumstances. You are highly motivated and driven by contributing to the success of the project. You have excellent collaboration skills and understand the importance of working together with others to achieve the project’s goals. What do we offer? A creative and inspiring environment with wide-ranging expertise and interests. Karolinska Institutet is one of the world’s leading medical universities. Our vision is to pursue the development of knowledge about life and to promote a better health for all. At Karolinska Institutet, we conduct successful medical research and hold the largest range of medical education in Sweden. Karolinska Institutet is also a state university, which entitles you to several good benefits through our collective agreement. And you get to practice freely in our modern wellness facilities, where trained staff are on site. Location: Flemingsberg Esophageal and Gastric Cancer Research Group Unconventional T cells in human pathology – Andrea Ponzetta’s team CIM Choose to work at KI – Ten reasons why Application Welcome to apply at the latest 15 February 2026. The application is to be submitted through the Varbi recruitment system.In this recruitment, you will apply with your CV without a personal letter. Instead, you will answer some questions about why you are applying for the job in the application form. Permanent position is initiated by a six months trial period. Want to make a difference? Join us and contribute to better health for all Apply Now

Do you want to contribute to top-quality medical research and improving human health? To be a postdoctoral researcher is to devote oneself to scientific discovery while contributing to a vibrant academic environment through supervision, teaching, and collaborative activities. We are seeking a highly motivated and intellectually curious postdoctoral fellow to join a joint research project between the laboratories of Associate Professor Dhifaf Sarhan and Assistant Professor Kasper Karlsson at Karolinska Institutet. The postdoc will work on an interdisciplinary project aimed at elucidating adaptive natural killer (NK) cell responses and immunological memory, using advanced lineage tracing and single-cell and spatial profiling. By combining cutting-edge immune biology with state-of-the-art lineage tracing technologies, the project seeks to understand how NK cell states are formed, maintained, and propagated across cell divisions in tumor and immune contexts. The position is based at Science for Life Laboratory, Solna campus the first year, and at ANA Futura, Karolinska Institutet, Flemingsberg Campus, the second year. The project leverages close interactions with clinicians, technology developers, and core facilities, providing access to world-class infrastructure for single-cell genomics, spatial biology, functional genomics, and computational analysis. As a postdoc in this project, you will be part of KIRI, the Karolinska Institutet Research Incubator, a unique initiative at KI to build a community for interdisciplinary research and breakthrough discoveries. You will have access to two PI:s that you can meet and interact with to facilitate the research process and increase the synergetic effects. You will also have the opportunity to meet other KIRI postdocs, present your work at scientific events, and take part in KIRI activities. Read more about KIRI here: KI Research Incubator – KIRI This position offers a unique opportunity to develop independent scientific thinking, contribute to methodological innovation, and work at the interface of immune memory, tumor biology, and next-generation lineage tracing, with strong relevance for both fundamental immunology and future therapeutic strategies. Your profile We invite applications from outstanding PhD, MD, or MD/PhD candidates with a background in immunology, combined with a strong interest in technology and method development. This position is aimed at candidates who want to work at the interface of NK cell biology and lineage-tracing technologies, and to develop new experimental and computational tools to study adaptive immune responses at single-cell resolution. The successful candidate will be highly motivated, technically curious, and creative, with a solid experimental foundation and a clear ambition to grow as an independent researcher. The postdoctoral fellow is expected to contribute equally to biological discovery, focused on immune memory, and to technology development, including lineage tracing, single-cell workflows, and data-driven analysis. The overarching aim is to generate mechanistic insights with clear relevance for cancer immunotherapy and translational research. The position is embedded in a highly collaborative environment spanning experimental immunology, quantitative biology, and translational cancer research, with access to world-class infrastructure for single-cell genomics, functional genomics, and computational analysis. The preferred start date is spring 2026, but the timing and details of the position are open for discussion. The initial appointment is for two years, with the possibility of extension for up to an additional two years, in accordance with KI regulations. Required skills To be eligible for employment as a postdoctoral researcher, a PhD or a foreign degree deemed to be equivalent to a Swedish PhD is required. This eligibility requirement must be fulfilled at the latest at the time of the employment decision. Completion of your doctoral degree within the last three years is considered an advantage. If there are special reasons, your degree may have been completed earlier. Applicants should have a solid experimental foundation and a strong interest in technology-driven research. Required experience includes mammalian cell culture (preferably primary cells), and a basic understanding of immunology with hands-on experience working with immune cells and/or immune phenotyping by flow cytometry. Familiarity with standard molecular biology techniques, such as PCR, is expected, as well as working proficiency in Python or R, ideally applied to sequencing-based data analysis. Desired skills Experience in one or more of the following areas will be considered an advantage, but candidates are not expected to have experience in all areas: Tumor–immune interaction models, such as immune–tumor co-cultures Single-cell experimental workflows, including sample preparation, quality control, and downstream analysis Molecular cloning and viral delivery, including plasmid design, assembly, or lentiviral transduction Lineage tracing or clonal tracking, including any form of cell barcoding technique Strong candidates may compensate for limited experience in specific areas through demonstrated technical aptitude, curiosity, and motivation to develop new methods. Relevant training will be provided within the project. What do we offer? A creative and inspiring environment with wide-ranging expertise and interests. Karolinska Institutet is one of the world’s leading medical universities. At Karolinska Institutet, we conduct successful medical research and hold the largest range of medical education in Sweden. At KI, you get to meet researchers working with a wide range of specialisms and methods, giving you ample opportunity to exchange knowledge and experience with the various scientific fields within medicine and health. It is the crossover collaborations, which have pushed KI to where it is today, at the forefront of global research. Several of the people you meet in healthcare are educated at KI. A close relationship with the health care providers is important for creating groundbreaking top quality education and research. Karolinska Institutet is also a state university, which entitles you to several benefits through our collective agreement. Application An employment application must contain the following documents in English or Swedish: PhD certificate A complete resumé, including date of the thesis defence, title of the thesis, previous academic positions, academic title, current position, academic distinctions, and committee work A complete list of publications A summary of current work (no more than one page) Welcome to apply! The application is to be submitted through the Varbi recruitment system. Karolinska Institutet strives to provide a workplace that has approximately the same number of women and men, is free of discrimination and offers equal opportunity to everyone. For temp agencies and recruiters, and to