Contract Biochemist: Protein Purification & Assay Expert

Apex Systems; Cambridge (MA); On-site; USD 90,000 - 140,000; Part time

Job summary

Stratacuity is seeking a hands-on Senior Associate Scientist, Biochemistry (Contract) to support biochemical assays and protein production at our Cambridge, MA site. You will collaborate with biology, chemistry, and protein sciences teams to generate high-quality data that advances therapeutic discovery programs.

Responsibilities include executing assays (FP, TR-FRET, AlphaLISA, SPR, DSF), supporting screening, and expressing/purifying recombinant proteins.

Qualifications

• BS or MS with relevant industry experience in biochemistry or molecular biology.
• Hands-on experience with biochemical/biophysical assays in drug discovery.
• Experience with protein purification and characterization techniques.
• Familiarity with high-throughput screening workflows is a plus.
• Strong documentation and communication skills.

Responsibilities

• Execute biochemical and biophysical assays (FP, TR-FRET, AlphaLISA, SPR, DSF, SEC).
• Perform compound screening, data capture, QC analysis, and assay troubleshooting.
• Support assay development, optimization, and reagent qualification.
• Express, purify, and characterize recombinant proteins using chromatography-based methods.
• Conduct protein QC using SDS-PAGE and analytical SEC.
• Maintain laboratory reagents, equipment, inventory, and documentation.

Skills

Biochemistry

Molecular biology

Assay development

Protein purification

Data analysis

Collaboration

Education

BS with 6+ years

MS with 2+ years

Tools

FP

TR-FRET

AlphaLISA

SPR

DSF

Job description

Stratacuity is seeking a hands-on Senior Associate Scientist, Biochemistry (Contract) to support biochemical assays and protein production at our Cambridge, MA site. You will collaborate with biology, chemistry, and protein sciences teams to generate high-quality data that advances therapeutic discovery programs.

Responsibilities include executing assays (FP, TR-FRET, AlphaLISA, SPR, DSF), supporting screening, and expressing/purifying recombinant proteins.