Laboratory Assistant

Swisslinx; Stein; On-site; CHF 70,000 - 110,000; Full time

Job summary

Swisslinx AG seeks an Laboratory Assistant with strong hands-on HPLC method development and validation experience to independently deliver analytical service projects. You will operate HPLC/UPLC systems, develop methods, and report results to stakeholders across the business.

The role requires DoE experience, data scripting skills in R/Python, and the ability to manage multiple projects while maintaining strict documentation and safety standards. English proficiency at B2+ is required.

Qualifications

• Bachelor's degree in Chemistry or Analytical Chemistry with hands-on HPLC experience.
• Master’s degree in Analytical Chemistry with hands-on HPLC experience is a plus.
• Experience operating modern UPLC/HPLC equipment, including method development and validation.
• Experience with DoE (Design of Experiments).
• Ability to manage multiple projects and deadlines, with strong communication skills.

Responsibilities

• Plan and execute analytical service operations for prioritized projects.
• Deliver results by developing protocols, performing measurements, and reporting findings.
• Develop and validate new analytical methods with internal experts.
• Communicate complex results to non-technical stakeholders and maintain documentation.
• Ensure compliance with site HSE regulations and maintain safe work practices.

Skills

HPLC method development

DoE (Design of Experiments)

Data analysis with scripting (R/Python

Communication skills

Project management

Education

Bachelor's degree in Chemistry or Analytical Chemistry

Master’s degree in Analytical Chemistry

Tools

RStudio

Python scripting

UPLC/HPLC instruments

Job description

Job Description

For our client, an international company in the agricultural science industry, we are looking for a Laboratory Assistant with strong hands‑on experience in HPLC method development and validation. The successful candidate will independently deliver analytical service projects using HPLC and other analytical techniques, including method development, analysis and reporting to various stakeholders across the business.

About The Customer

• Location: Stein, Aargau, Switzerland
• Start Date: Ideally 30 November 2026
• Duration: Until 31 December 2027 with possible extension
• Workload: 100% (42 hours per week)

Requirements

• Plan and carry out analytical service operations for projects prioritized by the line manager.
• Deliver projects by understanding stakeholder requirements, developing analytical protocols, establishing sample management procedures, performing measurements, analyzing data and reporting results.
• Develop new analytical methods and validate them with internal experts as required.
• Plan and execute complex, multifactorial experiments, ensuring practical feasibility.
• Manage sample reception and storage to ensure accuracy and traceability.
• Perform analyses to a high standard, following validated protocols and maintaining accurate documentation.
• Maintain analytical equipment, ensure safe and correct operation, and troubleshoot technical issues with supplier support when necessary.
• Process and analyze raw data using existing scripts and develop new ones as needed.
• Manage timelines efficiently across multiple projects, ensuring delivery within agreed deadlines and escalating resource constraints when necessary.
• Document and communicate analytical findings professionally, including explaining complex results to non-technical stakeholders.
• Ensure compliance with site HSE regulations, including identifying the need for new risk assessments and maintaining a strong focus on safety.

Competences

• Bachelor's degree in Chemistry or Analytical Chemistry with at least 3 years of practical laboratory experience using HPLC, or a Master’s degree in Analytical Chemistry with hands‑on HPLC experience.
• Practical experience operating modern UPLC/HPLC analytical equipment, including method development and validation.
• Practical experience with Design of Experiments (DoE).
• Ability to plan and execute complex analytical experiments independently.
• Strong organizational skills, personal motivation and ability to manage multiple projects and deadlines.
• Excellent interpersonal and communication skills, with the ability to explain complex analytical results to non‑technical audiences.
• Experience with RStudio or Python scripting and knowledge of statistical analysis tools are an advantage.
• English proficiency at minimum B2 level (no certificate required). Additional languages are an advantage.
• Must have valid authorization to work in Switzerland