Principal Mechanical Engineer

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 CO 2 locked underground. Here’s our entire business plan.

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 Principal Mechanical Engineer to own one of our 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!

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

This role can be across any of our modules, be it reactor, electrolyser and DAC. You could be designing our next electrolyser stack, creating welding drawings for our next in-house built reactor, or designing sheet metal parts for our carbonation bed. We need you to:

• Own the concept generation, architecting and technical requirements capture
• Design test-rigs to validate underlying hypothesis 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

• 7+ years professional experience
• Bachelor’s or Masters in mechanical/aero or related field
• System design experience including CAD (Solid Works), design for manufacture/assembly, and part specification and procurement
• Hands on workshop fabrication and build experience
• 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

• £100-120k Salary depending on experience
• Significant share options as part of the early team
• In-person work at our HQ in Bermondsey, South-East London – flexibility considered based on personal circumstances
• Extensive relocation support, including £6000 per year extra to live close to our HQ