Junior Biochemistry Scientist

Sustanix; Netherlands; Remote; EUR 30,000 - 45,000; Full time

Job summary

Sustanix Bioplastic Llp. in the Netherlands is seeking a motivated candidate to support research and development in microbiology and fermentation chemistry.

The role involves assisting in microbial culture studies, process optimization, analytical testing, and rigorous laboratory documentation. The ideal candidate has a Master’s degree (or PhD) in Microbiology, Biotechnology, Fermentation Technology, or Chemical Engineering with biotech specialization, with 0–2 years of laboratory experience.

Qualifications

• Master’s degree in Microbiology, Biotechnology, Fermentation Technology, or Chemical Engineering with biotech specialization.
• Basic understanding of microbial physiology and fermentation principles.
• Familiarity with aseptic techniques and lab safety procedures.
• Knowledge of bioreactors, fermentation systems, and analytical methods preferred.
• Ability to work independently and in a team.

Responsibilities

• Conduct microbiological experiments: isolation, culturing, staining, characterization.
• Assist fermentation process development, optimization, and scale-up.
• Monitor pH, temperature, DO, and nutrient use during fermentation.
• Perform routine analytical testing with standard lab instruments.
• Prepare media and reagents; maintain microbial cultures aseptically.
• Support quality control and follow SOPs for safety.
• Maintain equipment and ensure calibration and cleanliness.

Skills

Aseptic techniques

Lab safety procedures

Independent work

Team collaboration

Education

Master’s degree in Microbiology

Master’s degree in Biotechnology

Master’s degree in Fermentation Technology

Chemical Engineering (biotech/bioprocess)

Tools

Bioreactors

Analytical instrumentation

Job description

Science can help us transition to a circular economy without cost escalation and it will need a lot of effort and scientific curiosity. Let’s bring that transition together.

Sustanix is a Dutch deeptech chemistry startup developing novel bio-based polymers and formulations by valorising biomass to replace microplastic, synthetic chemicals, and PFAS in coatings, personal care, and water treatment.

Role Overview

We are seeking a motivated and detail-oriented candidate to support research and development activities in microbiology and fermentation chemistry. The role involves assisting in microbial culture studies, fermentation process optimization, analytical testing, and laboratory documentation. The ideal candidate should possess a strong scientific foundation, hands-on laboratory skills, and an eagerness to contribute to innovation in bioprocessing and microbial applications.

Key Responsibilities

• Conduct microbiological experiments including microbial isolation, culturing, staining, and characterization.
• Assist in fermentation process development, optimization, and scale-up activities.
• Monitor fermentation parameters such as pH, temperature, dissolved oxygen, and nutrient utilization.
• Perform routine analytical testing using standard laboratory instruments and techniques.
• Prepare media, reagents, and maintain microbial cultures under aseptic conditions.
• Support quality control and compliance with laboratory safety and SOP guidelines.
• Maintain laboratory equipment and ensure cleanliness and calibration standards.

Required Qualification

Master’s degree or PhD in:

• Microbiology
• Biotechnology
• Fermentation Technology
• Chemical Engineering (with biotechnology/bioprocess specialization)

• Basic understanding of microbial physiology and fermentation principles.
• Familiarity with aseptic techniques and laboratory safety procedures.
• Knowledge of bioreactors, fermentation systems, and analytical methods is preferred.
• Ability to work independently as well as in a collaborative team environment.

Experience

• 0–2 years of laboratory or industrial experience in microbiology, biotechnology, or fermentation-related fields.
• Internship or academic project experience in fermentation or microbial research will be an added advantage.

We are an equal opportunity employer and value diversity. All employment decisions are based on qualifications, merit, and business needs.