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

Z2gzdVQxZm9lYW1yWUJoVC9UcFRHMk8vbkE9PQ==
  • 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

ContactLink Solutions

Freelance Portuguese US-Based Interpreter Job at ContactLink Solutions

 ...LANGUAGE : Portuguese US-Based Interpreter As a remote interpreter, you play a significant role in facilitating communication between PORTUGUESE and English speakers. The interpreter needs to be able to process information quickly and with accuracy in a professional... 

Microsoft Corporation

Creative Director Job at Microsoft Corporation

The Consumer Integrated Marketing team at Microsoft is seeking a Creative Director to elevate our creative and strategic thinking across our portfolio of brands.The Creative Director will be responsible for ideating, leading and evolving Microsoft's digital creative experiences... 

Gpac

Commercial Drywall Project Manager Job at Gpac

 ...contractor in the construction industry, specializing in high-quality commercial drywall projects. They are committed to delivering exceptional...  ...continue to grow, they are seeking a talented Drywall Project Manager to join their team. This company offers great culture,... 

Peraton

Forensic Audio-Video Examiner Job at Peraton

 ...issues. Law Enforcement and Emergency Services Video Association (LEVA), Certified Video Technician OR Certified Video Analyst International Association for Identification (IAI), Forensic Video Examiner DoD 8570 Compliant, IAT Level II. Software Adobe Suite... 

Nike

Sr Retail Production Support Engineer Job at Nike

 ...Become a Part of the NIKE, Inc. Team NIKE, Inc. does more than outfit the worlds best athletes. It is a place to explore potential, obliterate boundaries and push out the edges of what can be. The company looks...