Fermentation Jobs (NOW HIRING)

COMPANY DESCRIPTION
Flagship Pioneering is a platform innovation company that invents and builds companies that change the world. We bring together the greatest scientific minds with entrepreneurial company builders and assemble the capital to allow them to take courageous leaps. Those big leaps in human health, sustainability and beyond exponentially accelerate scientific progress in areas ranging from disease detection and treatment and nature-positive agriculture to novel applications of AI that are driving the creation of new technologies.
What sets Flagship apart is our ability to advance science and technology by uniting innovation, company creation, and capital investment under one roof in a way that is largely without precedent. Our scientific founders, entrepreneurial leaders, and professional capital managers are each aligned around an institutionalized process that enables us to innovate and transform for the benefit of people and planet.
Many of the companies Flagship has founded 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.
THE ROLE
We are seeking a highly motivated Senior Research Associate to support the development and optimization of microbial fermentation processes for recombinant protein production. Reporting to the Principal Scientist, Bioprocess Development, this individual will play a key role in executing and scaling aerobic microbial fermentation workflows in a fast-paced startup environment.
The ideal candidate is highly hands-on, technically rigorous, and comfortable operating independently in a dynamic research setting. This role requires strong practical experience with bench-scale bioreactors, microbial culture techniques, fermentation analytics, and laboratory operations.
KEY RESPONSIBILITIES
Fermentation Operations

• Operate, monitor, and troubleshoot bench-scale aerobic microbial fermentation systems with minimal supervision
• Execute batch and fed-batch fermentation experiments to support process development objectives
• Prepare media, inoculum, feeds, and process solutions for fermentation campaigns
• Perform reactor setup, sterilization, calibration, and post-run cleaning/maintenance

Sampling & Analytical Support

• Collect and process fermentation samples throughout cultivation runs
• Perform routine analytical assays including OD measurements, metabolite analysis, and sample preparation for HPLC or related analytical platforms
• Track fermentation performance metrics including biomass, substrate consumption, and product formation

Strain Evaluation & Process Development

• Support screening and characterization of microbial strains in shake flask and bench scale bioreactors
• Assist in process optimization studies, including media development and fermentation parameter evaluation
• Maintain accurate and well-organized experimental records and documentation

Laboratory Operations

• Generate and maintain microbial cell banks and inventory records
• Coordinate ordering and tracking of fermentation consumables and raw materials
• Support routine laboratory maintenance, equipment upkeep, and troubleshooting
• Contribute to safe laboratory operations and maintain a strong culture of safety and operational rigor

Cross-Functional Collaboration

• Collaborate with strain engineering, downstream, and analytical teams to support integrated process development activities
• Assist with scaling workflows and implementing improved operational practices as the platform grows

PROFESSIONAL EXPERIENCE & QUALIFICATIONS

• Bachelor's degree (with 5-7 years of relevant research experience) or Master's degree (with 3-5 years of relevant research experience) in Bioengineering, Chemical Engineering, Microbiology, Biotechnology, or related discipline.
• Hands-on experience in microbial fermentation, microbiology, bioprocess development, or related laboratory environments
• Experience in operating and maintaining bench-scale bioreactors
• Strong understanding of aseptic technique and microbial culture handling
• Experience with aerobic microbial fermentation workflows
• Strong organizational and documentation skills
• Ability to independently execute experiments and troubleshoot routine process issues

Preferred Experience

• Experience with fed-batch fermentation processes
• Familiarity with HPLC-based analysis of sugars, organic acids, or fermentation metabolites
• Experience with recombinant protein expression systems
• Experience supporting process optimization or scale-up activities
• Familiarity with fermentation data analysis and process monitoring tools

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 www.flagshippioneering.com.
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.
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The salary range for this role is $81,000 - $107,300. Compensation for the role will depend on a number of factors, including a candidate's qualifications, skills, competencies, and experience. Protocos currently offers healthcare coverage, annual incentive program, retirement benefits and a broad range of other benefits. Compensation and benefits information is based on Protocos'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 privacy@flagshippioneering.com.