New
$25 - $35 per hour

Serif Biomedicines: Molecular Biology Co-Op

United StatesUnited States·Cambridge
Other
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Quick Summary

Requirements Summary

Pursuing a MS in Molecular Biology, Cell Biology, Bioengineering, Biochemistry, or a related field Hands-on experience with core techniques: miniprep/midiprep, PCR, agarose gel electrophoresis,

Technical Tools
Other

Are you ready to help build the next generation of molecular biology tools and platforms? At Serif Biomedicines, we push the boundaries of DNA design, precise cloning, and cell-based engineering to accelerate the discovery and development of transformative therapeutics and diagnostics.

Serif Biomedicines was founded by Flagship Pioneering's venture creation engine that invents and builds platform companies, each with the potential for multiple products that transform human health or sustainability. Since its launch in 2000, Flagship has originated and fostered more than 100 scientific ventures, resulting in more than $90 billion in aggregate value. Many of the company’s Flagship has founded have addressed humanity’s most urgent challenges: vaccinating billions of people against COVID-19, curing intractable diseases, improving human health, preempting illness, and feeding the world by improving the resiliency and sustainability of agriculture. Flagship has been recognized twice on FORTUNE’s “Change the World” list, an annual ranking of companies that have made a positive social and environmental impact through activities that are part of their core business strategies and has been twice named to Fast Company’s annual list of the World’s Most Innovative Companies. Learn more about Flagship at www.flagshippioneering.com.

Welcome to Flagship Pioneering Co-Op Program for the cohort dreaming big and taking courageous leaps. You'll join fellow peers across our ecosystem of companies and learning firsthand how we build first-in-category companies. You’ll have access to enrichment sessions, a dedicated professional development track, and a mentor that help guide you toward your next step. By the end, you will carry on a meaningful project outcome, a genuine network, and a front-row view of how Flagship pioneer new ventures that change the world.

About the Role

As a member of our molecular biology team, you’ll work at the forefront of hands-on research from constructing DNA plasmids to analyzing cell phenotypes and protein expression.

Responsibilities

~1 min read
  • →
    Design, build, and QC DNA constructs using restriction cloning, Gibson/Golden Gate assembly, and PCR.
  • →
    Run agarose DNA gels to analyze PCR products and digests; perform gel extraction and DNA purification.
  • →
    Set up restriction enzyme digests and ligations; optimize reaction conditions and troubleshoot cloning workflows
  • →
    Perform core molecular and cell biology tasks, including DNA/RNA extraction, qPCR/RT-qPCR, transfection/transduction, and clonal line generation
  • →
    Analyze and clearly communicate experimental results; iterate protocols in collaboration with experienced scientists
  • Highly motivated and enthusiastic co-op students eager to dive into fast-paced, impactful bench science
  • Curious problem solvers who learn new techniques quickly and think creatively
  • Individuals with a strong foundation in molecular biology and cell culture; experience with synthetic biology, genome engineering, or assay development is a plus.

Requirements

~1 min read
  • Pursuing a MS in Molecular Biology, Cell Biology, Bioengineering, Biochemistry, or a related field
  • Hands-on experience with core techniques: miniprep/midiprep, PCR, agarose gel electrophoresis, restriction enzyme digests, ligation, and DNA purification
  • Strong organizational skills, attention to detail, and clear written/verbal communication

What We Offer

~3 min read
✓Contribute directly to impactful, platform-scale molecular biology
✓Collaborate with a tight-knit, multidisciplinary team that values mentorship and scientific rigor
✓Build a diverse toolkit spanning cloning, gel-based analysis, cell engineering, assay development, and data analysis
✓Build alongside founders. You’ll work inside the same hypothesis-driven process Flagship uses to conceive and launch first-in-category companies.
✓This can be the start of a longer story. Strong co-ops are considered for future opportunities across Flagship and its portfolio companies, not just for this one role.
✓Work alongside people who left the safe path. Your colleagues are scientists, engineers, and operators who chose to build something new rather than join something already established.
✓Take on real ownership. You're contributing to ventures that are still being defined. Your work can shape real decisions, not just support them.
✓Be paid like the contributor you are. Compensation reflects the real work you take on.

Location & Eligibility

Where is the job
Cambridge, United States
On-site at the office
Who can apply
US

About this job

Pay per year
≈ $52,000–$72,800 a year
8% below the $67,500 median for Other jobs on Jobera (121,957 salaries).
Who can apply
United States
Posted
Today
Employer
has 30 open jobs on Jobera.

Listing Details

Posted
October 21, 2026
First seen
October 21, 2026
Last seen
October 21, 2026

Posting Health

Days active
0
Repost count
1
Trust Level
72%
Scored at
October 21, 2026

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Serif Biomedicines: Molecular Biology Co-Op$25 - $35 per hour