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Downstream Process Engineer I

Menlo Park, CA

Who We Are:

Antheia is a science and technology company developing next generation plant-inspired medicines. Applying synthetic biology, genomics, bioinformatics, data science, and fermentation, we harness the most beneficial molecules from plants to create active pharmaceutical ingredients in more controlled and economical ways. We are a close-knit team inspired by the possibilities of delivering transformative technologies and breakthrough science to change the course of medicine. We value our people as our most important resource and are always looking for talented individuals who can make valuable contributions to our efforts.

Antheia is seeking a junior Process Engineer to join our Downstream Processing team. In this role, you will help develop and scale processes to separate and purify bio-derived Key Starting Materials and APIs, moving from bench to pilot and commercial scales. You will gain an understanding of how impurities behave, how products degrade over time, and how to design processes that stay within target cost and performance ranges. You will support day-to-day unit operations, collect and analyze data, and help define key parameters for each step. Hands-on lab skills in sample preparation, as well as experience with liquid-solid and liquid-liquid separations, are important. You’ll work closely with cross-functional teams—including Biology, Analytics, Operations, Quality, and Regulatory—to help create efficient, reliable processes that deliver high-quality products on schedule. 

If you're ready to tackle meaningful challenges and drive innovation, we invite you to explore this opportunity with us. 

Responsibilities: 

  • Run regular unit operations and data collection for analysis 
  • Preparation of samples for Analytical methods 
  • Perform studies following experimental protocols 
  • Maintain equipment 
  • Maintain mass balance data 
  • Develop high level PFDs for DSP processes 
  • Support project teams to deliver on project goals 
  • Comply with safety protocols and ensure the safety of co-workers 
  • Comply with Regulatory and DEA documentation requirements when required for handling, storage and disposal 
  • Provide documentation for transparency and reports 
  • Perform other duties as assigned1 

 

Qualifications: 

  • B.S. in Chemical Engineering or relevant area of study; 0-2 years of experience 
  • Chemistry laboratory experience such as liquid-solid and liquid-liquid separations 
  • Strong mechanical aptitude
  • Experience with Microsoft Excel for data collection and analysis 
  • Experience writing reports 
  • Must be able to work onsite in Menlo Park, M-F.  *Local candidates preferred as relocation assistance is not available at this time. 

 

Nice to haves (but not required): 

  • Analytical Chemistry experience with HPLC/UPLC 
  • Prior experience with downstream unit operations 

 

Additional Information:   
Full-time base salary range of $95,000 – $110,000 plus annual bonus potential and equity opportunities.    

 [1] This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities and activities may change, or new ones may be assigned at any time with or without notice. 

This position is based in Menlo Park, CA - there is no relocation assistance offered at this time. 

For full-time employees at Antheia, compensation and benefits include:

  • Comprehensive compensation package, which includes annual bonus potential and equity opportunities
  • Paid time off, in addition to company-observed holidays
  • Excellent medical, dental, and vision insurance
  • 401(k) retirement savings plan
  • Free access to the Menlo Park Labs Gym
  • Menlo Park Labs free shuttle service to CalTrain, BART Station, and SF

 

Antheia is an equal opportunity employer and does not discriminate based on race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical conditions, veteran status, sexual orientation, gender (including gender identity and gender expression), taking or requesting statutorily protected leave, or any other basis protected by law. In addition, Antheia prohibits the harassment of any individual on any of the bases listed above or any other characteristics protected under federal, state, or local laws.

Legal authorization to work in the United States is required. In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire..

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