Sr/Principal Process Engineer
- Employer
- Codexis, Inc
- Location
- Redwood City, California (US)
- Posted date
- Oct 20, 2026
View more categories
- Discipline
- Engineering, Chemical Engineer, Process Engineer
- Required Education
- Bachelors Degree
- Position Type
- Full time

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Job Details
Key Responsibilities
Providing technical leadership in hands‑on process development, applying advanced engineering principles to drive the design, build‑out, and maturation of the ECO Synthesis® platform in close partnership with cross‑functional development teams
Leading the scale‑up strategy for the ECO Synthesis® platform, ensuring process is robust, well‑characterized, and ready for transition into a cGMP manufacturing environment.
Championing laboratory safety, maintaining a clean and compliant workspace, conducting process hazard analyses and risk assessments, and ensuring safe working environment for all team members.
Overseeing documentation quality, ensuring batch records, SOPs, and development reports meet GDP standards; providing mentorship and guidance to early‑career engineers and scientists on documentation and experimental/statistical rigor.
Leading the development and delivery of key technical work, including internal and external presentations, detailed technical reports, and comprehensive technology transfer packages for siRNA manufacturing processes.
Owning the creation of engineering design tools, including mass and energy balances, process flow diagrams (PFDs), equipment specifications, and cost models to support scale‑up, facility integration, and long‑term platform deployment.
Serving as primary technical liaison with external vendors, driving equipment selection, qualification, and support activities essential for effective process development and scale‑up.
Skills, Knowledge & Expertise
• Bachelor’s degree in Chemical Engineering, Biochemical Engineering, or related field with 10+ years of relevant industrial experience, or M.S. with 8+ years.
• Expertise in flow chemistry, biocatalysis, or oligonucleotide synthesis technologies (e.g., SPOS, enzymatic platforms).
• Demonstrated leadership in scale‑up activities, including tech transfer of biocatalytic or nucleic acid–based processes from laboratory to pilot or commercial manufacturing environments.
• Proficiency in process modeling and simulation tools such as Aspen Plus, SuperPro Designer, COMSOL, or DynoChem; and proficient with data analytics or scripting tools (e.g., R, JMP, Python).
• Strong leadership, communication skills, with the ability to collaborate effectively across cross-functional teams including R&D, Operations, Quality, and Engineering.
Additional experience that would be valuable for this role includes:
• Prior experience managing early career engineers, scientist, or research associates.
• Expertise in purification technologies, such as chromatography, filtration, or enzyme/oligonucleotide purification workflows.
• Experience with facility design or equipment specification, for nucleic acid manufacturing.
• Deep understanding of quality systems and regulatory expectations, including ISO-based quality frameworks and GMP principles.
Job Benefits
Medical, Dental and Vision Insurance
Basic Life, AD&D, Short- and Long-Term Disability Insurance
401k with Company Match up to 4%
Company Equity
Generous Paid Time Off including 18 Company Holidays (with a summer and winter shutdown), Vacation, and Wellness Time
Annual Lifestyle Account for reimbursement of fitness programs, equipment and more
Employee Stock Purchase Program (ESPP)
Flexible Spending Accounts (Commuter/Parking, Dependent Care & Healthcare)
Student Debt Program (Company Contribution to Loans)
Mental Health Wellness Program
Subsidized onsite lunch program
Onsite Gym Facilities
Paid Parental Leave
And More!