This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

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The next step is to speak to Jack.

Job Title: Senior Mechanical Engineer

Salary: £70k-90k + Equity

Company Description: Rivan Industries - Decarbonising heavy industry through synthetic fuels

Job Description:
You will own the end-to-end design and manufacture of a critical Rivan sub-system, such as a reactor or electrolyser. This role involves rethinking conventional high-cost hardware from first principles to enable mass manufacturing. You'll drive everything from initial concept and CAD modeling to hands-on workshop fabrication, testing, and vendor management.

Location: London, UK

Why this role is remarkable:

• Full ownership of a major hardware module (Reactor, Electrolyser, or DAC) with the freedom to challenge every design assumption and manufacturing step.
• Join an elite seed-stage team of ~20 engineers from Imperial, Cambridge, and high-performance backgrounds like rocketry and motorsports.
• Exceptional relocation and local living support, including an extra £6,000 per year specifically to help you live close to the Bermondsey HQ.

What you will do:

• Lead concept generation, architecting, and technical requirements capture for next-generation synthetic fuel plant modules using SolidWorks.
• Design and commission bespoke test-rigs to rapidly validate underlying thermofluid hypotheses and iterate on hardware performance.
• Manage the entire production lifecycle, from generating fabrication drawings to hands-on assembly and integration within the onsite workshop.

The ideal candidate:

• 5+ years of professional experience in mechanical or aerospace engineering with a proven track record of designing and building complex systems.
• Advanced competency in first-principles engineering, including thermofluids (heat/mass transfer), FEA, CFD, and analytical modeling using Python.
• Extensive hands-on workshop experience with a DFM/DFA mindset, capable of bridging the gap between digital CAD design and physical hardware fabrication.

Who are Jack & Jill?
Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

Next steps
Step 1. Visit our website.
Step 2. Click 'Talk to Jack'.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
Step 6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs
This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.