Reagent Manufacturing Technician

Countablelabs; Palo Alto (CA); On-site; USD 27,552,000 - 41,328,000; Part time

Job summary

Countable Labs in Palo Alto, CA is seeking a Reagent Manufacturing Technician for a part-time, contract role. You will prepare and test reagents used in diagnostics, operate fill lines under sterile conditions, and ensure ISO/good manufacturing practices are followed. The schedule runs weekdays 8:00 a.m. to 4:30 p.m., with weekends not required.

The role emphasizes precise liquid handling, batch record maintenance, and collaboration across a production-focused lab to address backlog needs.

Qualifications

• Bachelor’s degree in biology, chemistry, biotech, or related STEM field preferred; hands-on experience also accepted.
• 1–3+ years in GMP/ISO-regulated life science manufacturing, especially PCR/NGS reagents.

Responsibilities

• Formulation, processing, and weighing/mixing of chemical and biological reagents per SOPs.
• Fill and package reagents, operate automated fill lines, assemble multi-reagent kits.
• Perform QC checks, pH/concentration testing, and document results in batch records.
• Maintain cGMP/ISO compliance and update batch history records (DHRs).
• Manage inventory, cold-chain storage, and keep a clean, organized lab space.

Skills

Aseptic techniques

Dexterity

Pipetting

Attention to detail

Teamwork

Education

BS in STEM

Job description

About Countable Labs

At Countable Labs, we’re reimagining the future of genomics and we’d love for you to be a part of it! As the innovators behind our groundbreaking Countable PCR platform, we’re building tools that make a real impact in precision medicine. We’re a startup fueled by innovation, collaboration, and a mission-driven spirit. If you’re ready to roll up your sleeves, build something from the ground up, and help shape the future of genomics, we want you on our team! Countable Labs is an Equal Opportunity Employer

Role Summary

The Reagent Manufacturing Technician leads the daily production of reagents and ensures that all manufactured reagents and kits meet the requirement per the procedures.

You will formulate, test, and package chemical and biological reagents used in diagnostics and research. Responsibilities include precise liquid handling, operating automated filling and labeling equipment, following ISO/GMP regulations, and accurately maintaining batch records and Device History Records (DHRs)

Key Responsibilities

• Formulation & Processing: Accurately measure, weigh, mix, and filter chemical and biological solutions based on precise standard operating procedures (SOPs).
• Filling & Packaging: Aliquot bulk reagents into final container bottles, operate automated/semi-automated fill lines, and assemble multi-reagent kits.
• Quality Control & Assurance: Perform visual inspections, incoming material QC, gather samples for testing, conduct pH/concentration checks, and support root-cause investigations into production deviations.
• Documentation & Compliance: Complete and review batch records and DHRs, ensuring 100% compliance with cGMP, GDP, and ISO standards.
• Inventory & Maintenance: Track raw materials in ERP systems, manage reagent cold-chain storage, and maintain a sterile, organized laboratory workspace.

Additional Skills & Qualifications

• Previous experience in reagent manufacturing, reagent preparation, or inventory management; experience in PCR and/or NGS reagent manufacturing highly preferred
• Familiarity with working with flow hood and fume hood environments, as well as common equipment in a typical molecular biology lab
• Skillful with pipetting and mixing reagents, including enzymes, oligos, and buffer solutions
• Strong teamwork skills and ability to work collaboratively in a supportive, production-focused lab setting.
• Ability to adapt to changing priorities and perform additional duties as assigned.
• Previous experience and understanding of OSHA hazard communication requirements such as biosafety protocols.
• Familiarity with PCR and DNA quantitation techniques is highly preferred.
• Ability to support as a back-up to shipping, receiving and inventory control.

Required Qualifications

• Education: B.S. degree in a STEM discipline (Biology, Chemistry, Biotech) is preferred, though relevant hands-on experience and completed STEM coursework are often accepted.
• Experience: 1 to 3+ years working in a GMP/ISO-regulated manufacturing environment in life science tools, diagnostic, medical device, or pharmaceutical manufacturing environment. Experience with manufacturing of PCR, NGS, and other molecular biology reagent products highly preferred.
• Skills: Aseptic techniques, high dexterity for repetitive pipetting, proficiency with metric/imperial volume measurements, prolonged standing, color differentiation (relevant given reagent manufacturing such as pH/concentration visual checks) and the physical ability to lift up to 25–50 lbs.
• Superb attention to details; ability and desire to work in a fast-paced environment, and priorities can change on a regular basis

Work Environment

This role is based in a laboratory setting within a manufacturing and packaging department. The standard production hours are flexible and only part-time. The desire is for someone to be here between Monday through Friday from 8:00 a.m. to 4:30 p.m., weekends are not currently required. This role is an onsite work that includes time under flowhoods and fume hood areas while filling liquid products, as well as operating printers, labelers, electronic or mechanical filling equipment, and other common molecular biology lab equipment. The position requires wearing appropriate personal protective equipment, including latex gloves and safety glasses. The company offers a supportive and collaborative culture that encourages employees to focus on their professional strengths while maintaining a healthy work-life balance. This is a contract role created to address an extensive backlog, with a history of extensions beyond the initial term based on business needs and performance.

Job Type & Location

This is a Contract position based out of Headquarters in Palo Alto, CA.