Founding Research Associate/Associate Scientist

Posted 4 Hours Ago
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Cambridge, MA, USA
In-Office
Mid level
Healthtech • Social Impact • Biotech • Pharmaceutical
The Role
Develop, optimize, and execute cell-based assays across cell lines and primary cells; run and troubleshoot flow cytometry and cell sorting; prepare samples for MS-enrichment workflows; document SOPs and enable reproducible platform operations in an open-science startup.
Summary Generated by Built In
About the Deliverome Project

Deliverome Bio is a nonprofit startup building a first-of-its-kind open atlas of surface protein abundance and internalization. We’re hiring a founding team to generate the data that could expand what targeted therapies can reach.

The Role

You will be a core experimental engine for the Deliverome cell biology platform. Your work will focus on developing, optimizing, and executing cell-based assays that support receptor biology, internalization profiling, and broader platform workflows across both primary cells and tractable workhorse cell lines. This role spans assay development, cell culture, flow cytometry and cell sorting, and experimental workflows that feed directly into MS enrichment-based readouts.

This role is well suited to someone who loves being at the bench, takes pride in making complex workflows reliable, and has strong hands-on experience with primary cell culture, standard mammalian cell lines, and flow-based experimental workflows. You will work closely with scientists across cell biology, proteomics, and functional genomics, and your execution will directly shape the quality, reproducibility, and scalability of the data we generate and release to the community.

Like all of our founding hires, you will have a direct line to co-founders and a genuine say in how the platform is built. Your protocols will be used broadly, your optimizations will matter immediately, and your work will support datasets, reagents, and methods that are released openly for others to build on. You will gain unusually broad, practical experience spanning assay development, primary human cell workflows, flow cytometry, and MS-compatible cell biology in an open science setting.

What You Will DoAssay development and execution
  • Develop, optimize, and execute cell-based assays that support receptor profiling, internalization studies, and related platform workflows

  • Build assays across a spectrum of systems, from workhorse cell lines for fast iteration and troubleshooting to primary cells for biologically relevant validation

  • Support assay transfer from concept to robust routine execution, including optimization of timing, controls, signal window, reproducibility, and throughput

  • Troubleshoot assay variability, cell handling effects, reagent performance, and readout quality across both engineered cell lines and primary cells

  • Generate clean, well-documented datasets and communicate experimental outcomes, limitations, and next-step recommendations clearly to the team

Primary cell culture and core cell biology workflows
  • Culture, maintain, and experimentally manipulate a range of mammalian cell types, with particular emphasis on both primary cells and standard experimental cell lines

  • Execute and refine workflows in tractable systems like HEK293 and K562 while helping translate the strongest assays into more biologically relevant primary cell contexts

  • Support tissue- and blood-derived workflows, including sample handling, enrichment, recovery, and preparation for downstream assays

  • Help establish standardized cell preparation workflows that preserve viability, biological relevance, and cross-experiment consistency across donors, cell types, and assay formats

Flow cytometry, sorting, and screening support
  • Design, execute, and troubleshoot flow cytometry experiments for phenotyping, assay readout, QC, and cell enrichment

  • Perform fluorescence-activated cell sorting and/or related enrichment workflows to isolate defined cell populations from heterogeneous samples

  • Support development of flow-based assays, including panel optimization, gating strategy refinement, compensation controls, and sample quality assessment

  • Contribute to assay formats that support screening or screening-adjacent workflows where appropriate, with particular emphasis on sorting and analytical flow cytometry

MS enrichment-based workflows
  • Support cell preparation and upstream assay execution for MS enrichment-based workflows, including experiments that depend on clean labeling, enrichment quality, and reproducible sample handling

  • Partner closely with the proteomics team to ensure cell-state, lysis, enrichment, and sample prep constraints are considered during assay development rather than after the fact

  • Help optimize workflows where cell biology quality directly determines the success of downstream enrichments and MS readouts

  • Contribute to development of reproducible handoff points between cell biology workflows and proteomics workflows, including QC, sample tracking, and protocol standardization

Platform development and open science
  • Document protocols, assay parameters, controls, and experimental observations in a way others can reliably reproduce

  • Contribute to SOP development, QC frameworks, reagent evaluation, and benchmarking across assays and cell workflows

  • Help build a cell biology operation that is rigorous, scalable, and publication-ready from the beginning

  • Contribute to protocol sharing, method writeups, and other open-science outputs as the platform matures

What We Are Looking ForRequired
  • BS or MS in cell biology, molecular biology, immunology, bioengineering, biochemistry, or a related field, with strong hands-on experimental experience

  • Excellent mammalian cell culture skills, including experience with both standard cell lines and primary cells or other delicate cell systems

  • Demonstrated assay development or assay optimization experience in a cell biology setting

  • Strong flow cytometry experience, including 2-3 color panels, assay readouts, QC, and data interpretation

  • Practical experience with cell sorting and/or other enrichment methods

  • Strong experimental instincts and attention to detail: you think about controls, biological confounders, and workflow failure points before they become problems

  • Clear record-keeping and comfort executing carefully across repeated runs and evolving protocols

Highly valued
  • Pooled functional genomics screening experience

  • Experience with primary human samples, including blood- or tissue-derived cell isolation, handling, and downstream assay support

  • Experience supporting or interfacing with MS enrichment-based workflows or other proteomics-adjacent sample prep pipelines

  • Experience with receptor internalization assays, uptake assays, cell surface staining, biotinylation/enrichment workflows, or related quantitative cell biology methods

  • Comfort with basic analysis of flow cytometry or screening data in FlowJo, Python, Prism, or similar tools

Who you are
  • You are a bench scientist at heart: careful, fast, reliable, and energized by getting an assay to work reproducibly

  • You enjoy the real craft of experimental biology — cell handling, setup discipline, troubleshooting, and protocol refinement

  • You are comfortable moving between tractable cell lines for rapid development and primary cells for biological relevance, and you understand what changes when you move between them

  • You know that cell prep, staining quality, sorting rigor, and enrichment quality all matter downstream, and you care deeply about that handoff

  • You document as you go and write protocols other people can actually follow

  • You want your work to be openly released, widely adopted, and genuinely useful to people building better therapies

  • You thrive in a small, high-trust team where everyone’s contributions are visible and decisions are made fast, and where accelerating science should never be perceived as stepping on toes

Level and Title

We are hiring at the Research Associate to Associate Scientist level depending on capability and experience. We are open to candidates from either industry or academia. What matters most is strong hands-on experimental execution, depth in cell biology workflows, comfort with both primary cells and standard cell lines, and the ability to improve assays rather than simply run them as written.

What We Offer
  • Competitive salary benchmarked to industry rates

  • Full benefits including health, dental, vision, and retirement

  • A founding team role: your decisions will shape the platform and the organization

  • Open science by design: your work will be published, deposited on Addgene, and used globally

  • Unprecedented collaboration with world-class advisors across proteomics, functional genomics, targeted delivery, and AI

  • A culture that values rigor, transparency, and speed, but doesn’t mistake busyness for productivity

Skills Required

  • BS or MS in cell biology, molecular biology, immunology, bioengineering, biochemistry, or related field
  • Strong hands-on mammalian cell culture experience with standard cell lines and primary cells
  • Demonstrated assay development or assay optimization experience in a cell biology setting
  • Strong flow cytometry experience including 2-3 color panels, QC, and data interpretation
  • Practical experience with cell sorting (FACS) and/or enrichment methods
  • Clear record-keeping and ability to execute reproducible protocols across repeated runs
  • Pooled functional genomics screening experience
  • Experience with primary human samples (blood/tissue isolation and handling)
  • Experience supporting or interfacing with MS enrichment-based workflows or proteomics sample prep
  • Experience with receptor internalization, uptake assays, cell surface staining, biotinylation/enrichment workflows
  • Basic analysis of flow cytometry or screening data in FlowJo, Python, Prism, or similar
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The Company
0 Employees
Year Founded: 2026

What We Do

Deliverome Bio is a nonprofit focused research organization and startup building an open atlas of the human surfaceome—covering abundance, specificity, internalization, and routing. Their mission is to scale targeted delivery beyond the liver, aiming to increase the number of actionable targets for precision medicine tenfold within five years through open data sharing and collaboration across academia and industry.

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