Scientist/Sr. Scientist

We are seeking a highly skilled and motivated contract-to-hire Scientist/Sr. Scientist to help build out and elevate our Mass Spectrometry group. This is not a support role — the successful candidate will be a key scientific contributor who shapes bioanalytical strategy for discovery-stage programs, with a particular focus on targeted protein degradation and next generation biologic therapeutics. The ideal candidate brings deep, hands‑on expertise in mass spec‑based bioanalysis, protein and peptide characterization, and analytical assay development, and is motivated to expand what the group can do — introducing new platforms, workflows, and technical capabilities that grow our capacity and scientific reach. This is a highly visible, cross‑functional role with direct influence over the direction of the research and development pipeline and the long‑term growth of the Mass Spectrometry group. Key Responsibilities: Drive the development, optimization, and fit‑for‑purpose validation of LC‑MS/MS and IP (hybrid ligand binding) assays for quantification of biomarkers, proteins, peptides, cytokines, and metabolites, expanding the group's assay portfolio Architect and lead workflows for peptide mapping, post‑translational modification (PTM) analysis, disulfide bond mapping, and glycosylation analysis — establishing new technical capabilities for the group Develop novel, fit‑for‑purpose bioanalytical methods for proteins with complex attributes (e.g., high MW, high glycosylation, unexpected MWs), applying and advancing enzymatic digestion strategies to push the group's analytical capabilities forward Set goals, timelines, and priorities for bioanalysis across cross‑functional project teams, serving as the Mass Spectrometry group's scientific voice and representative Lead advanced data processing and statistical analysis across multiple vendor software platforms, and help evaluate new tools and technologies to strengthen the group's capacity Own the performance of key analytical instrumentation, and partner with vendors and colleagues to expand instrumentation capabilities and uptime Author technical reports, SOPs, and electronic notebook records that build the group's institutional knowledge base and support its growing scope Mentor junior scientists and contribute scientific and technical leadership that raises the capability and impact of the broader Mass Spectrometry group Required Qualifications: Minimum of 5 years of experience in mass spectrometry-based bioanalytical sciences, with a track record of driving scientific impact rather than only executing assigned assays Extensive experience with mass spectrometry analysis of proteins and peptides (Sciex QTRAP, Sciex Q-TOF, Thermo Orbitrap Fusion/Lumos, QQQ with MRM method) Demonstrated expertise leading bioanalytical method development and validation of large molecule analytes Experience performing intact and subunit protein mass spectrometry analysis, including characterization of monoclonal antibodies and fusion proteins Hands‑on experience with a range of chromatography techniques (RP-HPLC, SEC, HILIC, nanoLC, microLC) Proficient in wet lab sample preparation techniques (SPE, IP, LLE) Ability to own and troubleshoot mass spec instrumentation in close collaboration with vendors to ensure optimal system performance and uptime Strong scientific judgment, organizational skills, and attention to detail Ability to balance multiple priorities in a fast‑moving, growing group Excellent written and verbal communication skills, with the ability to represent the Mass Spectrometry group's work to cross‑functional partners and leadership Laboratory‑based position (based in Cambridge) Fast‑paced, growth‑oriented environment Close collaboration with cross‑functional R&D and bioanalytical teams Preferred Qualifications: Experience with computational biology, bioinformatics Experience with biochemical, biophysical, and biology assays such as SPR, TR‑FRET, ELISA, MSD Experience executing method development, validation, and assay transfer at CROs and external partners #J-18808-Ljbffr Biohaven