Part-Time Weekend HPLC Chemist Job at Harken Research, Pasadena, CA

eVc1d0gxMzVqSHhPdzBRdHBTSzFCTndCQ2c9PQ==
  • Harken Research
  • Pasadena, CA

Job Description

Part-Time Weekend HPLC Chemist

Harken Research · Pasadena, CA (On-site)

Compensation: $28–$35/hour (DOE)

Schedule: 8–16 hours/week (Saturdays and/or Sundays)

Opportunity: Potential for increased hours or advancement into full-time roles

About Us

Harken Research is a rapidly growing ISO 17025–accredited analytical laboratory serving the dietary supplement industry.

Our lab is fast-paced, scientifically rigorous, and committed to delivering high-quality results. Our strengths are our ability to offer customized testing and problem solving to address client needs; excellent customer service; and quick turnaround times.

Summary

We’re seeking a part-time HPLC chemist to join our weekend lab team. This role is ideal for someone with strong analytical chemistry experience who enjoys working independently and with precision. You will be responsible for operating HPLC instruments, preparing samples, troubleshooting issues, and ensuring accurate and timely test results on dietary supplement products.

Responsibilities

  • Operate and maintain HPLC systems for weekend test batches
  • Run validated quantitative methods for analytes such as caffeine, vitamins, sugars, amino acids, and botanical actives
  • Perform precise sample preparation: weighing, pipetting, extraction, dilution
  • Troubleshoot HPLC instrument issues, including pressure spikes, retention time shifts, peak distortion, and detector noise
  • Identify and resolve sample preparation challenges, such as solubility problems, incomplete extraction, or interference from matrix components
  • Record and report results with attention to detail and regulatory compliance
  • Follow SOPs and ISO 17025 quality protocols
  • Support method verification or validation efforts when needed
  • Communicate any urgent issues or maintenance needs to the weekday team

Qualifications

  • Bachelor’s degree in Chemistry, Biochemistry, or a related field
  • Minimum 2 years of hands-on HPLC experience
  • Strong attention to detail in sample prep and data analysis
  • Confident working independently on weekends without supervision
  • Experience in dietary supplement, food, or pharmaceutical testing preferred
  • Familiarity with ISO 17025 or other regulated lab environments is a plus

Compensation

  • Pay: $28–$35/hour, depending on experience
  • Flexible weekend scheduling
  • Potential for additional hours or long-term advancement

Job Tags

Full time, Part time, Immediate start, Flexible hours, Shift work, Sunday, Saturday, Weekday work,

Similar Jobs

Kearny Dental Associates

Dental Assistant Job at Kearny Dental Associates

 ...Kearny Dental Associates - Dental Assistant May 2025 Hi! We are looking for an outgoing and friendly Dental Assistant who wants to join our highly...  .... Salary Based on experience. This is currently a part time position, however it may turn into a full time position... 

EdgeCore Digital Infrastructure

Automation and Controls Manager Job at EdgeCore Digital Infrastructure

 ...team. This position will be part of the IT team and be responsible for the reliability and quality of the Building Management System (BMS), Electrical Power Monitoring System (EPMS) and Data Center Infrastructure Management (DCIM) systems. The individual will assist with... 

Russell Tobin

Vice President - Head of Philanthropy and Social Impact Communications Job at Russell Tobin

 ...allocation, prepare documentation for leadership, and maintain policies and procedures. Volunteering: Implement and coordinate non-profit employee engagement initiatives across all NA locations. Increase volunteer participation, impact, and skills-based... 

Career Group

Personal Assistant Job at Career Group

 ...busy family in Greenbrae is seeking a capable and compassionate Personal/Family Assistant to support daily household operations and...  ...with basic admin tasks and digital calendars Reliable, safe driver with a clean driving record and insured vehicle Comfortable... 

Inspire Global Solutions

Salesforce Admin Training and Placement Your Path to a Successful Career Job at Inspire Global Solutions

Salesforce Admin Training and Placement: Your Path to a Successful Career Salesforce Admin Training is designed to equip you with the skills needed to manage and optimize Salesforce CRM for businesses. This comprehensive course covers everything from basic administration...