Scientist, Bioconjugation

United States·Bostonmid

OtherScientist

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OtherScientist

Manifold Bio is a platform biotechnology company pioneering AI-guided protein design and massively multiplexed in vivo screening to unlock tissue-targeted medicines and organism-scale models of living systems. Using proprietary molecular barcoding technology, we screen hundreds of thousands of protein designs simultaneously in living systems, producing in vivo-validated datasets at a scale no one else can match. The datasets power our computational models, which leads to better drug designs, creating a flywheel that gets stronger with every campaign. Our team of protein engineers, biologists, and computational scientists works across this full stack to pursue programs both internally and with leading pharma companies.

Responsibilities

~1 min read

→Design, execute, and troubleshoot bioconjugation reactions for protein-oligonucleotide conjugates and other bioconjugated fluorophores, tags, and peptides
→Purify and characterize bioconjugated products using standard biochemical techniques
→Build and maintain a parallelized, efficient workflow to support in vivo target engagement evaluation of multiple new candidate tissue-targeting shuttles using tool siRNA payloads
→Oversee contract research organizations (CROs) performing specialized or large-scale bioconjugation projects
→Proactively identify and drive optimization of existing bioconjugation and analytical workflows
→Maintain accurate, detailed experimental records and contribute to scientific discussions and experimental design

Requirements

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PhD in Biochemistry, Chemistry, Molecular Biology, or a related scientific field
Minimum of 3+ years of hands-on wet-lab experience in protein production, purification, and biochemistry
Proficiency in basic biochemical techniques (e.g., protein quantification, gel electrophoresis, chromatography)
Proven ability to troubleshoot biochemical assays and optimize experimental protocols
Experience with bioconjugation chemistry principles and methodologies (e.g., cysteine-based, lysine-based, and/or enzymatic conjugation strategies)
Familiarity with oligonucleotide chemistry and handling

Experience with high-throughput screening or automation
Familiarity with analytical techniques for biomolecule characterization (e.g., mass spectrometry, DLS, BLI, SPR)
Experience establishing and troubleshooting enzymatic assays
Demonstrated leadership or mentorship of junior scientists
Strong presentation skills and design sensibility

You get energy from solving a critical-path bottleneck and building the workflow that unblocks the rest of the team
You take rigor seriously and want your bioconjugated constructs to be reproducible at scale
You're comfortable managing external partners and holding CRO-generated work to the same bar as your own
You're scrappy, iterate quickly, and take ownership of projects through to resolution
You communicate clearly, document rigorously, and enjoy working across a highly interdisciplinary team

Base Salary Range: $118,000 - $138,000

This reflects the typical offer range for this role, based on experience, role scope, and internal equity. Final compensation decisions are made using a consistent leveling framework and consider the candidate’s experience, interview performance, and expected impact.

This role is eligible for:

Annual performance-based target bonus
Stock options
Comprehensive medical, dental, and vision coverage
401(k) plan
Flexible paid time off and holidays
Perks including on-site gym, onsite lunch, and commuter support

Our compensation ranges are reviewed annually to ensure alignment with market trends and internal equity.

We value different experiences and ways of thinking and believe the most talented teams are built by bringing together people of diverse cultures, genders, and backgrounds.