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From the employer's careers site First seen 27 Oct 2026

Research Associate II, Protein Sciences

Flagship Pioneering Cambridge, MA On-site mid full-time

Salary

$74,000 - $93,500 per year

Apply on Flagship Pioneering

Description

We are seeking a highly motivated Research Associate II to join our Protein Sciences team, supporting the discovery, engineering, and characterization of proteins. Reporting to the Principal Scientist, Protein Sciences, this individual will play a central role in molecular biology, protein expression, and functional screening work.

Key Responsibilities:

  • Perform routine microbiology operations including media preparation, agar plate preparation, and aseptic technique
  • Maintain rigorous good laboratory practices (GLP) and contribute to a strong culture of safety and operational excellence
  • Generate and maintain microbial cell banks and inventory records
  • Support routine laboratory maintenance, equipment upkeep, and troubleshooting
  • Design and execute PCR for cloning, mutagenesis, and genotyping applications
  • Perform DNA assembly using Golden Gate, Gibson, and other modern cloning techniques
  • Run and analyze agarose gels; perform plasmid preparation (mini-prep, maxi-prep) and nucleic acid quantification
  • Perform sequencing analysis using state-of-the-art NGS technologies and software
  • Express engineered protein constructs across bacterial, yeast, and/or fungal expression systems
  • Analyze protein expression, purity, and integrity via SDS-PAGE and/or Western blot
  • Support protein purification workflows using standard chromatography and related techniques
  • Support high-throughput screening workflows for functional characterization of protein variants
  • Collaborate closely with the Protein Sciences team members and cross-functional partners
  • Maintain clear, well-organized experimental records and communicate results effectively to the team

Professional Experience & Qualifications:

  • Bachelor’s degree (with 2-5 years of relevant research experience) in Bioengineering, Biochemistry, Microbiology, Biotechnology, or related discipline
  • Hands-on experience with core microbiology operations: media prep, agar plate prep, aseptic technique, and general GLP
  • Strong hands-on experience with molecular cloning: design, PCR, gel electrophoresis and analysis, isolation, Golden Gate, Gibson assembly, and related techniques
  • Experience with protein analysis techniques including SDS-PAGE and Western blot
  • Strong communication, organizational and documentation skills
  • Ability to independently execute experiments and troubleshoot routine issues

Skills

Required

  • microbiology
  • molecular cloning
  • protein analysis
  • DNA assembly
  • PCR
  • gel electrophoresis
  • plasmid preparation
  • sequencing analysis
  • protein expression
  • purification
  • chromatography
  • high-throughput screening

Nice to have

  • bioinformatics
  • ELN tools
  • Benchling
  • Geneious
  • protein engineering
  • functional screening campaigns

Ready to apply?

You apply with the employer directly. Their original posting is here: https://job-boards.greenhouse.io/flagshippioneeringinc/jobs/8882558002

Apply on Flagship Pioneering