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

ZUZVU3dpYXJUVEMrUjB1SnNvQUpsVWho
  • 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, Weekend work, Sunday, Saturday, Weekday work,

Similar Jobs

Walmart Inc.

Senior Manager, Content Innovations- Walmart Connect Job at Walmart Inc.

 ...What you'll do at Position Summary... What you'll do... Senior Manager, Content Innovations Walmart Connect About Walmart Connect Walmart Connect helps brands reach Walmarts 150 million weekly shoppers through powerful omnichannel media solutions.... 

Firman Solutions LLC

Sleep Medicine Physician Job at Firman Solutions LLC

 ...About the Opportunity: We are seeking a Board Certified or Board Eligible Sleep Medicine Physician to join our established team. This is an exciting opportunity to practice in a well-respected, patient-focused environment offering state-of-the-art facilities and a strong... 

Worley Group, Inc

Arctic Pipe Welder - Remote 6-8 Week Contract Job at Worley Group, Inc

 ...for a skilled pipe welder for a temporary remote position on the North Slope, expected to last 6-8 weeks. Responsibilities include welding pipe, flanges, and fittings according to blueprints and codes. Candidates need 3-5 years of industrial welding experience and must... 

SPX

MIG Welders Job at SPX

 ...divh2MIG Welders/h2pBuilding the people that build the world./ppWith platforms in HVAC and Detection and Measurement, SPX Technologies...  ...of creating functional metal components primarily by performing MIG tack welding operations. Cincinnati Fan is expanding our weld team... 

API Heat Transfer

Aluminum Mig &Tig Welder in US-Wisconsin-FranklinApply Job at API Heat Transfer

 ...Join Our Team as an Aluminum MIG & TIG Welder! Are you a skilled welder with a passion for precision and craftsmanship? We're looking for an experienced Aluminum MIG & TIG Welder to join our dynamic team and help build high-performance heat transfer products, including...