About the Role

As a key member of Antheia’s Analytical Development group, you’ll partner closely with the Downstream Processing (DSP) team to keep high-quality analytical data flowing for process development. This role is hands-on and lab-based, with a strong focus on chromatography (especially LC/HPLC) and routine sample preparation and analysis at meaningful scale.

You’ll thrive here if you enjoy steady bench work, take pride in careful execution, and bring a thoughtful, organized approach to managing multiple requests. You’ll be supported by clear SOPs, a collaborative team, and a manager who trusts you to run your day while being available when you need guidance.

 What you’ll do

• Prepare solvents, standards, reagents, and routine samples.
• Run and review chromatography-based assays (LC/HPLC-heavy; other techniques may include GC and ion chromatography).
• Manage incoming work via LIMS, track requests, and organize your workload so results are delivered on time.
• Review data, document results clearly, and keep meticulous records and archives.
• Perform routine instrument maintenance, basic troubleshooting, and calibrations.
• Support planning and scheduling of instrument time; communicate timelines with partner teams.
• Contribute to troubleshooting (for example, investigating unexpected peaks or instrument issues) as you grow in independence.

Must-haves

• B.S. (or equivalent) in a hard science (Chemistry, Biochemistry, Analytical Chemistry, Chemical Engineering, etc.).
• 1 to 3+ years of hands-on chromatography experience (industry preferred; strong academic lab experience considered).
• Comfort with routine sample prep and running established SOP-based assays with care and consistency.
• Strong fundamentals with basic lab equipment and practices (balances, pH meters, glassware, etc.).
• A warm, organized, self-directed working style; you’re someone who can manage requests, keep track of details, and communicate clearly without needing daily oversight.

Nice-to-haves (helpful, not required)

• Small molecule pharmaceutical chromatography experience (especially LC/HPLC).
• Ion chromatography experience.
• Familiarity with common instrument ecosystems:
• Agilent (common for LC/GC/MS)
• Thermo/Dionex (ion chromatography)
• Experience with MS and related software, for example:
• ChemStation, Chromeleon, MassHunter
• Confidence troubleshooting routine instrument or data issues (you do not need to know every instrument, but you’re comfortable learning and applying good judgment).

Work location and schedule

• On-site, lab-based role (Menlo Park area).
• Typical business hours with some flexibility (for example, starting a bit earlier or later), as long as the work is getting done and communication stays strong.

Why Antheia

• Mission that matters: Antheia is changing how medicines are manufactured, with impact well beyond one site or one team.
• A kind, high-performing culture: Smart, driven colleagues with low ego, plus a community that actually enjoys being together (team activities, events committee, etc.).
• Mentorship and growth: Your hiring manager brings deep analytical chemistry experience (small molecule analysis, method development, scaling to manufacturing) and a mentorship-forward approach.
• Exposure to a growing instrument suite: As you ramp, there is room to expand your assay ownership and learn additional techniques.

Additional Information:   

Full-time base salary range of $80,000 - $100,000 plus an annual bonus potential and equity opportunities.  

Please note that Antheia does not discriminate based on age, race, ethnicity, national origin, religion, gender, sexual orientation, disability, medical history, or any other non-merit characteristics. Candidates must be authorized to work in the United States; we are unable to sponsor work visas for this role. Please also note that relocation assistance is not available for this position.