Senior Multiphase Reactor Engineer for Biocatalysis

Recircle; Daresbury; On-site; GBP 50,000 - 70,000; Full time

Benefits offered by this job

Private healthcare

Enhanced Pension Scheme options after

25 days holiday plus Bank Holidays

Cycle to work scheme

Job summary

Recircle is seeking a mid‑senior Chemical Process Engineer to join our UK-based biotech team. You will work at the lab bench on multiphase reactor systems and collaborate with enzyme engineers to translate fundamental understanding into robust, scalable processes for waste rubber conversion.

You will optimize mixing, mass transfer, reactor configuration and solids handling, while ensuring safety and downstream compatibility as you help scale innovative biocatalytic processes.

Qualifications

• PhD/masters or equivalent in chemical/biochemical engineering with strong lab and process development experience.
• Hands-on experience with multiphase reaction systems (gas, liquid, solid) and reactor scale-up.
• Familiarity with solvent handling, safety and phase behavior considerations.

Responsibilities

• Develop mechanistic understanding of reaction systems focusing on enzyme kinetics, mass transfer and phase behaviour.
• Optimize reactor configuration, hydrodynamics and solids suspension in multi‑vessel trains.
• Handle solid rubber substrates, wetting, suspension, settling and agglomeration strategies.
• Evaluate media, catalyst compatibility, and downstream processing considerations.
• Improve transport between phases and interfacial effects on performance.
• Enhance aeration and oxygen transfer; design sparger and agitation strategies.
• Analyze system data to inform scale-up and process design.

Skills

Multiphase reactor systems

Stirred reactors

Mass transfer understanding

Phase behaviour

Reaction engineering

Education

MEng/MSc/PhD in Chemical Engineering

Chemical/Process engineering background

Tools

Laboratory scale reactors

Reactor configuration design

Job description

Recircle is seeking a mid‑senior Chemical Process Engineer to join our UK-based biotech team. You will work at the lab bench on multiphase reactor systems and collaborate with enzyme engineers to translate fundamental understanding into robust, scalable processes for waste rubber conversion.

You will optimize mixing, mass transfer, reactor configuration and solids handling, while ensuring safety and downstream compatibility as you help scale innovative biocatalytic processes.