Mechanical Engineer (Electrolysis)

Rivan; Greater London; Hybrid; GBP 40,000 - 50,000; Full time

Benefits offered by this job

Private health insurance

Visa sponsorship available

Relocation support (£6000/year)

Significant share options

Job summary

Rivan Industries is seeking a Mechanical Engineer to own an electrolyser sub-system, driving design, manufacture, and system integration from concept to factory deployment. The role emphasizes ownership, minimal process, and high responsibility in a fast-paced, venture-backed setting.

We value hands-on fabrication skills, CAD proficiency (SolidWorks) and a strong understanding of manufacture/assembly. The position is based at our Bermondsey HQ in London with relocation support and visa

Qualifications

• Requires 1–2+ years of professional experience.
• Bachelor’s or Master’s in mechanical/aero or related field.
• Experience with CAD and design for manufacture/assembly.

Responsibilities

• Own the design and manufacture of an entire sub-system.
• Design test rigs to validate hypotheses quickly and cheaply.
• Own assembly, integration, commissioning and test plans.
• Liaise with external vendors to support production line.

Skills

CAD (SolidWorks)

Design for manufacture/assembly

System design

Hands-on workshop fabrication

Education

Bachelor’s or Master’s in mechanical/aero or related field

Tools

SolidWorks

Python

FEM/CFD basics

Job description

Rivan Industries is a synthetic fuel company decarbonising heavy industry. We’re making synthetic fuel cheaper than fossil fuels, sustaining life on earth by keeping the CO2 locked underground.

Engineering at Rivan is about taking technologies that are conventionally treated as low volume, bespoke, and expensive, and rethinking them completely to be mass manufactured, standardised, and ultra low cost. Every design aspect must be re-reasoned from first principles, every part’s existence questioned, and every manufacturing step scrutinised.

We’re looking for a talented Mechanical Engineer to own one of our electrolyser sub-systems, to drive that forward, tasked with uncovering new ways of thinking about our system integration, performance, longevity, and manufacturability. If you thrive on a lot of responsibility and tight deadlines, come and build!

The role

Own the design and manufacture of an entire Rivan sub-system.

We practice our culture, everyone at Rivan has direct ownership of part of our system, regardless of seniority. We operate with minimal process and bureaucracy, only what is essential to ensure our systems are safe, legally compliant, and deployed on time, everything else is up to you. We expect you to:

• Own the concept generation, architecting and technical requirements across electrolyser stack and balance of plant, from physics and chemistry, to rolling out of the factory door
• Design test-rigs to validate underlying hypotheses quickly and cheaply
• Own and iterate the design drawings with our fabrication workshop
• Own the assembly, integration, commissioning and test plans of that sub-system
• Liaise with external vendors to support our production line

Core skills

• 1-2+ years professional experience
• Bachelor’s or Master’s in mechanical/aero or related field
• System design experience including CAD (SolidWorks), design for manufacture/assembly, part specification and procurement
• Hands on workshop fabrication and build experience

Preferable skills

• Fundamental thermofluids understanding, including pressure loss, heat and mass transfer
• Simulation/analytical modelling competency (e.g. python, FEA, CFD)
• Test setup design, running of experiments, and data analysis

Specifics

• £40-50k Salary depending on experience
• Significant share options as part of the early team
• In-person work at our HQ in Bermondsey, South-East London
• Extensive relocation support, including £6000 per year extra to live close to our HQ
• Private health insurance
• Visa sponsorship available
• Unlimited time-off

We encourage exceptional applicants from all backgrounds to apply for this role, even if they do not meet all the requirements listed.