Senior Mechanical Engineer (Methanation)

Rivan; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Share options

Relocation support

Visa sponsorship

Private health insurance

Unlimited time-off

Job summary

Rivan Industries in London seeks a Senior Mechanical Engineer to own a sub-system, driving design for manufacturability, longevity, and system integration. You will generate concepts, set technical requirements, and guide testing and fabrication while collaborating with vendors.

The role offers £70-90k depending on experience, significant share options, in-person work at Bermondsey HQ, relocation support (£6000/year), visa sponsorship, private health insurance, and unlimited time-off.

Qualifications

• 5+ years of professional mechanical engineering experience.
• Bachelor's or Master's in mechanical/aero or related field.
• System design with CAD, DFMA, part spec and procurement.
• Hands-on workshop fabrication and build experience.
• Thermofluids fundamentals: pressure loss, heat and mass transfer.
• Simulation/analytical modelling (e.g., Python, FEA, CFD).
• Design of test setups and data analysis.

Responsibilities

• Own the design and manufacture of an entire Rivan sub-system.
• Across modules (reactor, electrolyser, DAC) design and integration.
• Generate concepts, capture technical requirements, and validate hypotheses.
• Design test rigs to validate hypotheses quickly and cheaply.
• Own drawings with fabrication workshop and oversee assembly and test plans.
• Coordinate with external vendors to support production line.

Skills

5+ years exp

CAD SolidWorks

Design for manufacture

Procurement

Workshop fabrication

Thermofluids

Simulation modelling

Test design

Education

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

Tools

SolidWorks

Python

FEA/CFD tools

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 Senior 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!

The role

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

Core skills

• 5+ years professional experience
• Bachelor's or Masters in mechanical/aero or related field
• System design experience including CAD (SolidWorks), 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

Specifics

• £70-90k 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
• Visa sponsorship available
• Private health insurance
• Unlimited time-off