Part-Time Lab Support Associate – Media (25Hrs Per Week) in Cambridge

Who we are

Life, Reimagined

Constructive Bio is a VC‑backed biotechnology startup based in Whittlesford, Cambridge.

Our unique technology turns living cells into biofactories, creating sustainable new materials and therapeutics.

With full control of the genetic sequence and code, we are exploring chemical space previously unreached by natural biology.

Constructive Bio is a spin‑out from Professor Jason Chin’s laboratory at the MRC Laboratory of Molecular Biology in Cambridge. Learn more about the Chin lab achievements at

• We secured $58 million Series A fundraising. Read more at
• What we’re looking for

We’re looking for a proactive and reliable Lab Support Associate – Media, to join our Operations team in a hands‑on laboratory support role.

You’ll have a strong attention to detail, good organisational skills, and the ability to manage multiple tasks effectively in a fast‑paced environment.

The ideal candidate will be comfortable working both independently and collaboratively, with clear communication skills and a willingness to learn and develop within the role.

Experience with aseptic technique and laboratory procedures such as media preparation, sterilisation, and handling laboratory consumables would be advantageous, although training can be provided for the right candidate.

This role is based on 25 hours per week, worked across 5 days between 9.00 am and 5.00 pm.

Responsibilities

• Preparation of media, buffers, and sterile solutions according to SOPs.
• Aseptic aliquoting of antibiotics within Class II MSC.
• Operating autoclaves and sterilising glassware and plasticware.
• Goods in – unpacking and receiving orders and storing at the correct temperatures.
• Using digital ordering systems and replenishing consumables.
• Supporting the wider lab support team when required, including glasswash operations and general laboratory housekeeping.

Requirements

• Willingness to learn and develop with a proactive approach.
• Experience with aseptic technique is an advantage.
• Teamwork & independence: Ability to work effectively both independently and as a committed member of a team.
• Attention to detail with good literacy and numeracy (including a good level of IT literacy).
• Clear and concise written and spoken communication skills.
• Effective time management skills, with the ability to be flexible and handle multiple responsibilities and tasks regularly.
• A minimum of a GCSE in a science subject or demonstrable relevant experience.
• Strong communication skills with the ability to work collaboratively.
• Desire to work in a fast‑paced environment.

What’s in it for you? Why work at Constructive Bio?

We are a small but rapidly growing team, with a vision to become the programmable biomolecules company and push the boundaries of what’s possible between biology and chemistry.

As an early joiner, you will have a unique opportunity to help shape our trajectory and make real impact from day one.

• We offer
• Newly fitted dedicated site in Whittlesford near Cambridge – on‑site parking and regular trains to Cambridge, London and Norwich.
• Competitive salary.
• Employee share option plan.
• 25 days holiday plus bank holidays pro rata.
• Private health insurance.
• Pension plan (matching up to 8%).
• Collaborative and pioneering environment, at the leading edge of synthetic genomics and engineered translation.
• Our principles
• We imagine: We think big and plan our own path for success.
• We pioneer: We take action and grow together as one to break moulds.
• We deliver: We take ownership and work together to deliver excellence.

Constructive Bio is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Constructive Bio is built on three principles: trust, respect, collaboration, openness, curiosity, and scientific excellence.

Please note that we work in a dog‑friendly office.

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