Research Assistant III in Stem Cell Biology

Job Summary:The Research Assistant III will play a vital role in the Ramanathan lab at Harvard University, collaborating closely with graduate students and postdoctoral researchers. This position involves conducting scientific experiments in the specialized field of stem cell biology and human development with a high degree of independence. The successful candidate will coordinate various facets of ongoing research projects, execute laboratory experiments using advanced techniques and equipment, and manage collaborations with external laboratories as necessary. This role may also include the training of new lab members in established scientific methods.Key Responsibilities:Coordinate multiple aspects of research projects and perform laboratory experiments utilizing specific techniques and equipment.Generate cortical tissue from various cell lines, including induced pluripotent stem cells (iPS cells), embryonic stem cells, and a Good Manufacturing Practice (GMP) line.Conduct genetic modifications, manage passaging, and maintain both parental and modified fluorescent reporter lines.Utilize cell printing, optimize differentiation protocols for each cell line, and prepare tissues for shipment to collaborators working with primates.Prepare samples for single-cell transcriptomics and validate them using antibody staining techniques.Set up incubators and shakers, monitor differentiation processes, and establish a robust experimental pipeline.Collaborate with lab members on experimental design, protocol establishment, and the development of innovative laboratory techniques.Process, organize, summarize, and analyze data; report results using a variety of scientific, word processing, spreadsheet, or statistical software applications.May provide training and guidance to others in laboratory techniques and procedures.Assist with laboratory maintenance tasks, including the procurement of equipment and supplies, liaising with vendors, and engaging in special projects as required.Working Conditions:This position is primarily performed in a laboratory environment on the Cambridge campus.Involves working with hazardous materials and human cell cultures.Physical Requirements:May require lifting, moving, and transporting research equipment.

Serif Biomedicines, Inc., based in Cambridge, MA, is a privately-held biotechnology company developing gene therapy approaches for diseases without current effective treatments. Founded by Flagship Pioneering, the company is part of a network that includes organizations such as Moderna, Syros Pharmaceuticals, and Evelo Biosciences. Role overview This Research Associate position centers on cell biology research, with a focus on understanding how nucleic acids function within cells. The role is laboratory-based and involves close collaboration with a multidisciplinary team. What you will do Culture and maintain a range of cell lines, including immune and non-immune cells. Design, perform, and refine assays to study nucleic acid function in primary cells and established cell lines in vitro. Communicate experimental plans and results through presentations and written reports, maintaining thorough electronic lab records. Work both independently and as part of a diverse research team.

Join the esteemed team at Harvard University as a Research Assistant I in the Department of Molecular and Cellular Biology. This full-time position offers an exciting opportunity to contribute to groundbreaking research in the sciences. You will assist in various research projects, working closely with senior researchers to gather and analyze data, prepare reports, and participate in laboratory activities.

Join Scismic, a dynamic biotech startup located in Cambridge, MA, that is at the forefront of developing innovative mRNA-modulating therapies aimed at treating a wide array of genetic disorders. Our research is focused on leveraging novel platforms to address neurological conditions, heart disease, and muscular dystrophies.Position Summary:As a Research Associate specializing in cellular neurobiology, you will play a crucial role in establishing cellular assays to validate in vitro proof of concept for our tRNA therapeutic candidates. Your expertise will be instrumental in characterizing cellular activities and understanding disease-relevant biology, ultimately guiding the prioritization of candidates for in vivo studies.

We are seeking a dedicated and detail-oriented Research Associate I / Cell Culture Technician to join our dynamic team. This role is pivotal in supporting our research initiatives through precise cell culture techniques and laboratory procedures. The ideal candidate will be responsible for maintaining cell lines, performing assays, and assisting in various research projects.

About Serif Biomedicines, Inc. Serif Biomedicines, Inc. is a privately held biotechnology company based in Cambridge, MA. The team focuses on developing gene therapies for diseases that currently lack effective treatments. Founded by Flagship Pioneering, Serif is part of a network that has launched over 100 companies in the life sciences, including Moderna, Syros Pharmaceuticals, and Generate Biomedicines. Position Overview The Research Associate in Molecular Biology will contribute to the development of programmable medicines. This position suits a molecular virologist or biochemist with hands-on experience in nucleic acid production, characterization, and molecular cloning. Scientific rigor and a collaborative approach are essential. The role involves working closely with others to advance nucleic acid therapeutics in a setting that values curiosity and innovation. Main Responsibilities Plasmid Production: Design, carry out, and troubleshoot molecular cloning for inserts of various lengths and compositions. Ensure plasmid sequences meet specifications. Inventory Management: Organize storage of produced materials. Keep accurate electronic records of material details and storage locations. Enzymatic Reaction Optimization: Improve and troubleshoot enzymatic reactions to boost nucleic acid yield and purity. Nucleic Acid Production: Follow and refine protocols to produce high-quality DNA and RNA with different expression cassettes.

Senior Research Associate in Chemical BiologyLocation: Cambridge, MA, USACompany: Flagship Pioneering, Inc. (FL116) About FL116 FL116, backed by Flagship Pioneering, focuses on advancing biomolecule synthesis. The team is developing a platform aimed at changing how research, diagnostic, and therapeutic molecules are manufactured. Role Overview The Senior Research Associate in Chemical Biology will join a collaborative group dedicated to applying chemical approaches to biological questions. This position centers on enzyme-mediated biomolecular synthesis, with attention to both mechanistic and molecular details. Main Responsibilities Design and conduct high-throughput experiments to study enzyme-substrate interactions Characterize biomolecular products using established and emerging techniques Support development of scalable assays to expand platform capabilities What We Look For Strong experimental skills and attention to detail Intellectual curiosity about the chemical nature of biological systems Interest in manipulating and measuring biological activities at the molecular level Comfort working in a hands-on, execution-focused, and pipeline-driven setting Motivation to grow with a rapidly evolving technology platform Work Environment This role offers the chance to build expertise at the intersection of chemistry and biology within a collaborative startup supported by Flagship Pioneering. The team values problem solvers who enjoy working on challenging scientific questions and developing new tools for biotechnology and therapeutics.

Join Harvard University as a Research Assistant I in the Department of Molecular and Cellular Biology. In this pivotal role, you will support groundbreaking research projects that advance our understanding of biological processes at the molecular level. This position offers a unique opportunity to collaborate with leading scientists, gain hands-on experience in cutting-edge laboratory techniques, and contribute to innovative scientific discoveries.

Join our team as a Biology Scientist, where you will engage in groundbreaking research and development in the field of biology. You will collaborate with a talented group of scientists and contribute to innovative projects that aim to advance our understanding of biological processes. This is an exciting opportunity to be part of a dynamic environment that fosters creativity and scientific inquiry.

Join us as a Senior Scientist in Computational Biology at Flagship Pioneering, Inc. In this pivotal role, you will leverage your expertise to drive innovative research and development in computational biology, contributing to groundbreaking discoveries and advancements in the field.

Join us at Integrated Resources, Inc. as an Associate Scientist II specializing in Cell Culture. In this pivotal role, you will contribute to groundbreaking research and development in a collaborative environment. You will be responsible for executing cell culture experiments, analyzing data, and ensuring adherence to quality standards.

Role Overview Active Site seeks Research Protocol Technicians to support projects in cell and molecular biology. This position involves independent lab work and contributes to research on how AI can assist biological experimentation. Key Details Location: On-site in Cambridge, MA (Kendall Square) Schedule: Part-time, 4 hours per day, Monday through Friday. Choose either 9 AM–1 PM or 1 PM–5 PM. Duration: Temporary, 8 weeks (June 26 to August 21, 2026) Compensation: $26.25 per hour. Bonus potential ranges from $230 to $2,400. About Active Site Active Site is a nonprofit research organization focused on the intersection of artificial intelligence and biology. The team collects and analyzes real-world data to understand how AI can enhance human capabilities in biological research. This project explores how people with minimal biology backgrounds can self-learn essential lab techniques, with findings aimed at advancing AI’s role in science. What You Will Do Lab Projects: Carry out DNA assembly (molecular cloning), mammalian cell culture, and cell transfection in BSL-1 and BSL-2 labs. AI Tools: Use AI and standard online resources as needed throughout the project. Independent Work: Complete assignments without direct technical mentorship from staff or other technicians. Each technician receives a dedicated workspace, equipment, and supplies, and works alongside about 40 other researchers. Who Should Apply Entry-Level Experience: Applicants should have no more than two weeks of prior biology lab experience (including jobs, internships, independent projects, or lab-based courses in cell culture, cloning, or related techniques). Current Lab Work: Those currently practicing biological laboratory research are not eligible.

About Flagship Pioneering and FL122 FL122, a new venture launched by Flagship Pioneering in Cambridge, MA, is building genomic technologies to advance human health and assisted reproduction. Flagship Pioneering has founded more than 100 life sciences companies over the past 20 years, including Moderna, Generate Biomedicines, and Tessera Therapeutics. The team is focused on solutions for critical challenges in human health and sustainability. Role Summary: Scientist in Reproductive and Molecular Biology This Scientist position will help lay the experimental groundwork for FL122’s scientific platform. The role centers on developing and standardizing laboratory workflows involving human gamete handling and molecular characterization. Working as part of the early scientific team, this person will collaborate with senior scientists and company leadership to define technical standards and execute experimental strategies. What You Will Do Develop and refine laboratory workflows for human gamete handling and molecular analysis Work directly with sensitive human samples in an IVF or embryology lab setting Apply molecular biology techniques to support experimental objectives Collaborate with team members and leadership to set technical standards Contribute to the execution and planning of experimental strategies What We’re Looking For Strong background in reproductive biology and molecular biology Hands-on experience in IVF or embryology laboratory environments Proficiency with molecular biology techniques Attention to detail and comfort working with sensitive human samples Adaptability and willingness to work across disciplines Collaborative mindset suitable for an early-stage, startup setting

The Access to Justice Lab at Harvard University seeks a full-time Research Assistant I to join its Cambridge-based team. This position centers on research that aims to improve access to justice. Key responsibilities Assist with ongoing research projects focused on access to justice issues Support the collection, analysis, and reporting of data Contribute to policy analysis and related assignments as needed Who will thrive in this role This role is well suited for individuals interested in launching a career in social justice research or policy analysis. Recent graduates and those looking for practical experience in an academic research environment are encouraged to apply.

About Serif Biomedicines, Inc. Serif Biomedicines, Inc. is a privately held biotechnology company in Cambridge, MA. The team is developing new approaches to gene therapy for diseases that current medical solutions cannot address. Serif Biomedicines was founded by Flagship Pioneering, known for launching over 100 innovative life sciences organizations focused on human health and sustainability. Role Overview The Senior Scientist, Molecular Biology will design and develop next-generation DNA constructs for programmable medicine. This position suits scientists experienced in synthetic biology, high-throughput cloning, and computational sequence engineering. The role centers on building scalable platforms for plasmid DNA design, construction, and optimization, using automation, algorithm-driven sequence design, and data-centric workflows. This scientist will report to the Director of Molecular Biology and may supervise a direct report. Collaboration with other scientists and group leaders across the R&D team is a key part of the job. What You Will Do Lead the design and construction of plasmid DNA constructs, including vector architecture, gene synthesis strategies, and high-efficiency cloning (such as Gibson, Golden Gate, and recombination-based methods). Advance automated and computational sequence design by applying advanced tools and pipelines for codon optimization, regulatory element tuning, and multi-parameter construct optimization. Establish and manage vendor relationships to support both internal and external capabilities, helping projects move forward efficiently and minimizing disruptions.

Nuclera is a biotech company focused on making proteins more accessible to researchers. Headquartered in Cambridge, UK, and with a presence in Boston, USA, Nuclera’s eProtein Discovery™ platform combines a benchtop instrument, cloud-based software, and proprietary cartridges. This system enables rapid protein expression, characterization, and purification for life science teams worldwide. Role Overview The Research Associate in Service Fulfillment will support custom projects and DNA construct amplification using the eProtein Discovery Platform. This role involves following Standard Operating Procedures (SOPs) and detailed work instructions to ensure quality and consistency. The position suits someone who is organized, attentive to detail, and comfortable working independently under time constraints. What You Will Do Conduct PCR to prepare DNA constructs for cell-free protein expression. Carry out protein purification, quantification, SDS PAGE analysis, and gel filtration chromatography or Surface Plasmon Resonance (SPR) analysis. Run experiments using Nuclera’s eProtein Discovery Platform. Follow Work Instructions and SOPs to maintain quality standards. Systematically manage and organize large sets of biological samples. Document experimental methods, observations, and results with accuracy.

Eurofins Scientific is seeking a Molecular Biology Analyst in Cambridge. This position centers on analyzing molecular data and conducting experiments to support ongoing scientific projects. Role overview This role involves hands-on laboratory work, including the analysis of molecular samples and the execution of experiments. The Molecular Biology Analyst will contribute to projects that support health and safety initiatives. Key responsibilities Analyze molecular data using established laboratory methods Perform experiments as part of project teams Support scientific efforts that advance health and safety Location This position is based in Cambridge.

Role Overview Harvard University is seeking a full-time Research Assistant in Cambridge. This role supports ongoing research projects and fosters collaboration with faculty and students across disciplines. What You Will Do Assist with research initiatives led by faculty members Work closely with students and staff in a team setting Contribute to the advancement of research goals within the university Location This position is based on campus in Cambridge.

Join the innovative team at gt-bio as a Research Assistant and Laboratory Technician. In this role, you will have the opportunity to support cutting-edge research initiatives and contribute to our mission of advancing biotechnological innovations. Your responsibilities will include conducting experiments, collecting and analyzing data, and collaborating closely with senior researchers.We are looking for a motivated individual who is passionate about scientific research and eager to learn. This position offers a dynamic work environment where you can develop your skills and grow your career in the biotech field.

GT Biosciences is on the cutting edge of biotechnology, developing Deliveromics, the world’s first AI-driven, high-throughput, multiplexed in vivo data engine designed to decode the complexities of drug delivery. Established by a team of MIT scientists and supported by elite investors, we are pioneering next-generation, non-viral, cell-type-specific delivery vehicles, achieving notable advancements in crossing the blood-brain barrier and targeting specific brain cell types. Our dedicated and fast-paced team is committed to revolutionizing routine in vivo cell reprogramming.We are seeking a passionate and skilled Spatial Biology Platform Scientist to join our Platform Development Team. In this pivotal role, you will leverage your extensive knowledge in spatial biology, nucleic acid sequencing, and assay development to enhance our Deliveromics platform. As an early member of our scientific team, your collaborative efforts across biology, chemistry, and engineering will be crucial in generating high-quality data and insights driving our innovations. This full-time, in-person position is based in Cambridge, MA.