Flagship Pioneering
Tilde Bio: Bioconjugation Chemistry Co-Op
Cambridge, MA USA +1 · Internship · Posted Oct 29, 2026
- Location
- Cambridge, MA USA
FL110 - Education
- Currently pursuing an M.S. in Chemistry, Chemical Biology, Biochemistry, or a closely related field.
About the job
Develops and evaluates new bioconjugation chemistries for site-selective protein modification, carrying synthesized reagents through protein conjugation and characterization.
What you'll do
- Design and run experiments to discover and optimize protein and peptide bioconjugation reactions; synthesize, purify, and characterize small-molecule reagents, linkers, and probes.
- Screen reaction conditions and assess kinetics, selectivity, yield, conjugate stability, and effects on protein structure and function.
- Characterize protein conjugates using intact-protein LC-MS and related methods; analyze and present results and maintain detailed electronic lab notebook records.
What they ask for
- Currently pursuing an M.S. in Chemistry, Chemical Biology, Biochemistry, or a closely related field.
- Strong foundation in organic synthesis, including multistep synthesis, purification, and characterization.
- Hands-on experience with analytical techniques such as NMR and LC-MS, and ability to extract structural information from spectra.
- Working knowledge of protein chemistry, including handling, purification, and buffer considerations.
Nice to have
- Previous research or industry experience in bioconjugation, chemical biology, or protein modification.
- Familiarity with antibody or protein conjugate modalities.
Pay
$25–$35 per hour (hourly pay)
Tools
NMR, LC-MS, intact-protein LC-MS, electronic lab notebook
AI focus
Applicant data may be reviewed using AI-assisted screening tools; the role itself does not describe AI work.
Model-written summary · the original posting is authoritative