Associate Scientist / Scientist, Fermentation

"

Join our team: Willow Biosciences, now part of Mycofeast Ltd., is a leading biotechnology company focused on revolutionizing industrial manufacturing of pure, consistent and sustainable ingredients. Willow develops and produces high-purity ingredients for personal care, food and beverage, and pharmaceutical markets. Willow's team has a proven track record of developing and commercializing bio-based manufacturing processes and products to benefit our B2B partners and their customers.

Job Title: Associate Scientist / Scientist, Fermentation R&D

Job Summary: We are seeking a driven and detail-oriented Fermentation Associate Scientist or Scientist to join our dynamic and collaborative R&D team. This role is ideal for someone with hands-on experience in microbial fermentation who is eager to contribute to process development and optimization in a fast-paced biotech environment. The scientist will support the design, execution, and analysis of fermentation experiments, contribute to cross-functional project teams, and play a key role in scaling processes from bench to pilot and manufacturing scale. This position offers significant opportunities for professional growth and cross-disciplinary collaboration.

Key Responsibilities:

• Design and execute fermentation experiments aimed at improving titer, yield, and productivity.
• Collaborate closely with strain engineering, analytical, and chemistry teams to inform strain selection and development.
• Support media optimization strategies to enhance microbial performance and process economics.
• Contribute to the development of technoeconomic models (TEA) and identify cost-reduction opportunities at scale.
• Analyze large datasets, interpret results, and communicate findings clearly to project teams.
• Maintain lab notebooks, prepare technical reports, and draft SOPs in compliance with internal standards.
• Participate in the operation, calibration, and routine maintenance of fermentation equipment.
• Work with external partners (CROs and CMOs) to support process transfer and scale-up.
• Provide mentorship to junior team members and support a collaborative, safety-conscious lab environment.

Required Skills & Qualifications:

• Solid foundation in microbial fermentation, biochemical processes, and process development.
• Proficient in operating and troubleshooting bench-scale bioreactors, including fed-batch and high-cell-density fermentations.
• Experience with data analysis tools such as JMP or Python; familiarity with process monitoring and statistical analysis.
• Understanding of downstream processing (e.g., centrifugation, filtration, homogenization) is a plus.
• Effective written and verbal communication skills; strong organizational and documentation practices.
• Ability to work both independently and as part of a multidisciplinary team; adaptable to evolving project needs.
• Familiarity with LIMS (such as Benchling) and automation tools is advantageous.

Education & Experience:

• B.S. with 5+ years of industry experience, M.S. with 3+ years of industry experience, or Ph.D. in Chemical Engineering, Biochemical Engineering, Microbiology, Biochemistry, or related field.
• Prior experience working with a range of fermentation scales-from microtiter plates to pilot/manufacturing-is preferred.

Employment Details:

• Type: Full-time, Onsite
• Location: Sunnyvale, CA, US
• Travel: Not required
• Work Authorization: Must be authorized to work in the U.S.

Physical Requirements:

• Ability to perform repetitive tasks using hands and wrists.
• Prolonged periods of standing, pipetting, and working at a bench.
• Compliance with lab safety practices and PPE usage (lab coat, gloves, safety glasses).

Compensation & Benefits

• Competitive salary package
• Generous PTO and company holidays
• Comprehensive medical, dental, and vision insurance
• Life, AD&D, short- and long-term disability insurance
• 401(k) retirement plan management

Equal Opportunity Employer: Willow Biosciences is an equal opportunity employer. We are committed to creating an inclusive environment for all employees. We do not discriminate based upon race, religion, color, gender, sexual orientation, gender identity, age, status as a protected veteran, status as an individual with a disability, or any other applicable legally protected characteristics. All employment is decided based on qualifications, merit, and business need.

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Join our team: Willow Biosciences, now part of Mycofeast Ltd., is a leading biotechnology company focused on revolutionizing industrial manufacturing of pure, consistent and sustainable ingredients. Willow develops and produces high-purity ingredients for personal care, food and beverage, and pharmaceutical markets. Willow's team has a proven track record of developing and commercializing bio-based manufacturing processes and products to benefit our B2B partners and their customers.

Job Title: Associate Scientist / Scientist, Fermentation R&D

Job Summary: We are seeking a driven and detail-oriented Fermentation Associate Scientist or Scientist to join our dynamic and collaborative R&D team. This role is ideal for someone with hands-on experience in microbial fermentation who is eager to contribute to process development and optimization in a fast-paced biotech environment. The scientist will support the design, execution, and analysis of fermentation experiments, contribute to cross-functional project teams, and play a key role in scaling processes from bench to pilot and manufacturing scale. This position offers significant opportunities for professional growth and cross-disciplinary collaboration.

Key Responsibilities:

• Design and execute fermentation experiments aimed at improving titer, yield, and productivity.
• Collaborate closely with strain engineering, analytical, and chemistry teams to inform strain selection and development.
• Support media optimization strategies to enhance microbial performance and process economics.
• Contribute to the development of technoeconomic models (TEA) and identify cost-reduction opportunities at scale.
• Analyze large datasets, interpret results, and communicate findings clearly to project teams.
• Maintain lab notebooks, prepare technical reports, and draft SOPs in compliance with internal standards.
• Participate in the operation, calibration, and routine maintenance of fermentation equipment.
• Work with external partners (CROs and CMOs) to support process transfer and scale-up.
• Provide mentorship to junior team members and support a collaborative, safety-conscious lab environment.

Required Skills & Qualifications:

• Solid foundation in microbial fermentation, biochemical processes, and process development.
• Proficient in operating and troubleshooting bench-scale bioreactors, including fed-batch and high-cell-density fermentations.
• Experience with data analysis tools such as JMP or Python; familiarity with process monitoring and statistical analysis.
• Understanding of downstream processing (e.g., centrifugation, filtration, homogenization) is a plus.
• Effective written and verbal communication skills; strong organizational and documentation practices.
• Ability to work both independently and as part of a multidisciplinary team; adaptable to evolving project needs.
• Familiarity with LIMS (such as Benchling) and automation tools is advantageous.

Education & Experience:

• B.S. with 5+ years of industry experience, M.S. with 3+ years of industry experience, or Ph.D. in Chemical Engineering, Biochemical Engineering, Microbiology, Biochemistry, or related field.
• Prior experience working with a range of fermentation scales-from microtiter plates to pilot/manufacturing-is preferred.

Employment Details:

• Type: Full-time, Onsite
• Location: Sunnyvale, CA, US
• Travel: Not required
• Work Authorization: Must be authorized to work in the U.S.

Physical Requirements:

• Ability to perform repetitive tasks using hands and wrists.
• Prolonged periods of standing, pipetting, and working at a bench.
• Compliance with lab safety practices and PPE usage (lab coat, gloves, safety glasses).

Compensation & Benefits

• Competitive salary package
• Generous PTO and company holidays
• Comprehensive medical, dental, and vision insurance
• Life, AD&D, short- and long-term disability insurance
• 401(k) retirement plan management

Equal Opportunity Employer: Willow Biosciences is an equal opportunity employer. We are committed to creating an inclusive environment for all employees. We do not discriminate based upon race, religion, color, gender, sexual orientation, gender identity, age, status as a protected veteran, status as an individual with a disability, or any other applicable legally protected characteristics. All employment is decided based on qualifications, merit, and business need.

Join our team: Willow Biosciences, now part of Mycofeast Ltd., is a leading biotechnology company focused on revolutionizing industrial manufacturing of pure, consistent and sustainable ingredients. Willow develops and produces high-purity ingredients for personal care, food and beverage, and pharmaceutical markets. Willow's team has a proven track record of developing and commercializing","html_description":"

Join our team: Willow Biosciences, now part of Mycofeast Ltd., is a leading biotechnology company focused on revolutionizing industrial manufacturing of pure, consistent and sustainable ingredients. Willow develops and produces high-purity ingredients for personal care, food and beverage, and pharmaceutical markets. Willow's team has a proven track record of developing and commercializing bio-based manufacturing processes and products to benefit our B2B partners and their customers.

Job Title: Associate Scientist / Scientist, Fermentation R&D

Job Summary: We are seeking a driven and detail-oriented Fermentation Associate Scientist or Scientist to join our dynamic and collaborative R&D team. This role is ideal for someone with hands-on experience in microbial fermentation who is eager to contribute to process development and optimization in a fast-paced biotech environment. The scientist will support the design, execution, and analysis of fermentation experiments, contribute to cross-functional project teams, and play a key role in scaling processes from bench to pilot and manufacturing scale. This position offers significant opportunities for professional growth and cross-disciplinary collaboration.

Key Responsibilities:

• Design and execute fermentation experiments aimed at improving titer, yield, and productivity.
• Collaborate closely with strain engineering, analytical, and chemistry teams to inform strain selection and development.
• Support media optimization strategies to enhance microbial performance and process economics.
• Contribute to the development of technoeconomic models (TEA) and identify cost-reduction opportunities at scale.
• Analyze large datasets, interpret results, and communicate findings clearly to project teams.
• Maintain lab notebooks, prepare technical reports, and draft SOPs in compliance with internal standards.
• Participate in the operation, calibration, and routine maintenance of fermentation equipment.
• Work with external partners (CROs and CMOs) to support process transfer and scale-up.
• Provide mentorship to junior team members and support a collaborative, safety-conscious lab environment.

Required Skills & Qualifications:

• Solid foundation in microbial fermentation, biochemical processes, and process development.
• Proficient in operating and troubleshooting bench-scale bioreactors, including fed-batch and high-cell-density fermentations.
• Experience with data analysis tools such as JMP or Python; familiarity with process monitoring and statistical analysis.
• Understanding of downstream processing (e.g., centrifugation, filtration, homogenization) is a plus.
• Effective written and verbal communication skills; strong organizational and documentation practices.
• Ability to work both independently and as part of a multidisciplinary team; adaptable to evolving project needs.
• Familiarity with LIMS (such as Benchling) and automation tools is advantageous.

Education & Experience:

• B.S. with 5+ years of industry experience, M.S. with 3+ years of industry experience, or Ph.D. in Chemical Engineering, Biochemical Engineering, Microbiology, Biochemistry, or related field.
• Prior experience working with a range of fermentation scales-from microtiter plates to pilot/manufacturing-is preferred.

Employment Details:

• Type: Full-time, Onsite
• Location: Sunnyvale, CA, US
• Travel: Not required
• Work Authorization: Must be authorized to work in the U.S.

Physical Requirements:

• Ability to perform repetitive tasks using hands and wrists.
• Prolonged periods of standing, pipetting, and working at a bench.
• Compliance with lab safety practices and PPE usage (lab coat, gloves, safety glasses).

Compensation & Benefits

• Competitive salary package
• Generous PTO and company holidays
• Comprehensive medical, dental, and vision insurance
• Life, AD&D, short- and long-term disability insurance
• 401(k) retirement plan management

Equal Opportunity Employer: Willow Biosciences is an equal opportunity employer. We are committed to creating an inclusive environment for all employees. We do not discriminate based upon race, religion, color, gender, sexual orientation, gender identity, age, status as a protected veteran, status as an individual with a disability, or any other applicable legally protected characteristics. All employment is decided based on qualifications, merit, and business need