Senior Scientist, Proteomics

COMPANY DESCRIPTION

Expedition Medicines is a privately held, early-stage biotechnology company pioneering the emerging field of Protein Editing. At Expedition Medicines we create small molecules that edit protein structure and function to unlock presently undruggable targets and a broad array of therapeutic modalities. Our platform integrates novel small molecule chemistry and chemoproteomic discovery technologies with Machine Learning (ML) to enable generative design. Expedition Medicines is backed by Flagship Pioneering, bringing their courage, vision, and resources to guide Expedition Medicines from platform validation to patient impact. We are seeking collaborative, relentless problem solvers that share our passion for impact to join us!

THE ROLE

Expedition is seeking a motivated and innovative Senior Scientist, Proteomics to join our team. In this role, you will play a critical role in the development and application of cutting-edge chemoproteomics workflows to support drug discovery programs and platform innovation. The successful candidate will combine strong experimental expertise in mass spectrometry-based proteomics with quantitative data analysis skills to enable biological insight and drive decision-making across multidisciplinary discovery teams. This individual will contribute to the advancement of a state-of-the-art chemical proteomics platform supporting targeted chemoproteomics, lead compound characterization, and biomarker discovery efforts. The ideal candidate is highly collaborative, scientifically rigorous, and capable of independently driving projects in a fast-paced research environment.

KEY RESPONSIBILITIES

Operate, maintain, and troubleshoot state-of-the-art LC-MS instrumentation, including Orbitrap Tribrid platforms with FAIMS Develop, optimize, and execute targeted chemoproteomics workflows to support discovery programs Design and improve scalable sample preparation and experimental workflows for high-throughput proteomics applications Analyze and interpret large-scale proteomics datasets using quantitative and statistical approaches Collaborate closely with proteomics, biology, chemistry, and computational teams to design experiments, interpret results, and guide project strategy Develop and implement innovative chemical proteomics technologies and methodologies to enhance platform capabilities Communicate findings and technical advances clearly across cross-functional teams

PROFESSIONAL EXPERIENCE & QUALIFICATIONS

Ph.D. in analytical chemistry, chemical biology, biochemistry, or a related discipline with 4+ years of industry experience, or M.S. degree with 6+ years of industry experience Extensive hands-on experience with mass spectrometry-based proteomics workflows and instrumentation Experience with quantitative proteomics methods including TMT, DIA, PRM, or related approaches Experience with targeted chemoproteomics workflows and applications Experience with peptide mapping and/or intact mass spectrometry is preferred Proficiency in analyzing complex, large-scale proteomics datasets using computational methods and programming languages such as Python or R Expert level understanding of proteomics data analysis software (e.g. MSFragger, ProteomeDiscoverer, Spectronaut, MaxQuant) Strong understanding of experimental design, assay optimization, reproducibility, and quantitative data interpretation Experience with laboratory automation platforms (e.g., Hamilton, Agilent Bravo) is a plus Excellent communication and cross-functional collaboration skills Demonstrated ability to work independently and manage multiple priorities in a fast-paced environment LOCATION: Cambridge, MA

ABOUT FLAGSHIP PIONEERING

Flagship Pioneering invents and builds platform companies, each with the potential for multiple products that transform human health, sustainability and beyond. Since its launch in 2000, Flagship has originated more than 100 companies. Many of these companies have addressed humanity’s most urgent challenges: vaccinating billions of people against COVID-19, curing intractable diseases, improving human health, preempting illness, and feeding the world by improving the resiliency and sustainability of agriculture. Flagship has been recognized twice on FORTUNE’s “Change the World” list, an annual ranking of companies that have made a positive social and environmental impact through activities that are part of their core business strategies and has been twice named to Fast Company’s annual list of the World’s Most Innovative Companies. Learn more about Flagship at At Flagship, we accept impossible missions to enable bigger leaps. Our core values guide us through uncertainty and toward lasting impact. We are an equal opportunity employer. All qualified applicants will be considered for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected by law. We recognize that great candidates often bring unique strengths without fulfilling every qualification. If you have some of the experience listed above but not all, please apply anyway. We are dedicated to building diverse and inclusive teams and look forward to learning more about your background and interest in Flagship. Recruitment & Staffing Agencies: Flagship Pioneering and its affiliated Flagship Lab companies (collectively, “FSP”) do not accept unsolicited resumes from any source other than candidates. The submission of unsolicited resumes by recruitment or staffing agencies to FSP or its employees is strictly prohibited unless contacted directly by Flagship Pioneering’s internal Talent Acquisition team. Any resume submitted by an agency in the absence of a signed agreement will automatically become the property of FSP, and FSP will not owe any referral or other fees with respect thereto.

#LI-MB1

Privacy Notice for Applicants: When you apply for a role at Flagship Pioneering or one of its portfolio companies, we collect and use personal information you provide (such as your name, contact details, work history, and application materials) to evaluate your application, communicate with you, and comply with legal obligations. Your application data is processed through Greenhouse, our applicant tracking system, and may also be reviewed using AI-assisted screening tools. We do not sell your personal information. California residents have rights under the CCPA/CPRA including to know, delete, and opt out of the sharing of their personal information. If you are located in the EU or UK, we process your data under GDPR and you have rights to access, rectify, and erase your data. To exercise your rights or for questions, contact View email address on click.appcast.io. The salary range for this role is $126,000 - $159,500. Compensation for the role will depend on a number of factors, including a candidate’s qualifications, skills, competencies, and experience. Expedition Medicines currently offers healthcare coverage, annual incentive program, retirement benefits and a broad range of other benefits. Compensation and benefits information is based on Expedition Medicines's good faith estimate as of the date of publication and may be modified in the future. Privacy Notice for Applicants: When you apply for a role at Flagship Pioneering or one of its portfolio companies, we collect and use personal information you provide (such as your name, contact details, work history, and application materials) to evaluate your application, communicate with you, and comply with legal obligations. Your application data is processed through Greenhouse, our applicant tracking system, and may also be reviewed using AI-assisted screening tools. We do not sell your personal information. California residents have rights under the CCPA/CPRA including to know, delete, and opt out of the sharing of their personal information. If you are located in the EU or UK, we process your data under GDPR and you have rights to access, rectify, and erase your data. To exercise your rights or for questions, contact View email address on click.appcast.io.