Mechanical Design Engineer

Location: Equisera HQ Eastington, Gloucestershire

Salary: From £40,000 to £55,000 (dependent on experience)

Contract Type: Full-time

Reports to: Chief Engineer

About Equisera

At Equisera, you will be part of a team building the next generation of carbon-negative energy, tackling some of the hardest problems in the global energy transition.

Our breakthrough RiPR (Rising Pressure Reformer) technology converts wet biogenic feedstocks, including agricultural and food waste and even plastics, into high-yield hydrogen and biomethane with minimal pre-processing. Both outputs capture carbon dioxide and create biochar, creating a truly carbon-negative fuel solution.

Backed by significant investment and strategic partnerships, you will be joining us at a critical scale-up phase. You will work within a small, passionate, high-impact team and help shape a cleaner, greener energy future.

The Role

As a Mechanical Design Engineer, you will join Equisera’s engineering team at an exciting stage in our commercialisation journey, supporting the development of next-generation carbon-negative energy systems.

You will play a key role in the mechanical design and development of prototype, pilot, and future commercial plant systems, working closely with multidisciplinary engineering and research teams. The role combines hands-on engineering with detailed design work and offers the opportunity to contribute directly to the development of pioneering clean-energy technology.

Your work will include developing plant layouts, general assemblies, detailed mechanical designs, fabrication drawings, and production of the supporting engineering documentation for process equipment and integrated plant systems. You will also contribute to engineering problem solving, equipment specification, system integration, design reviews, and continuous improvement activities across the wider engineering programme.

This is a hands-on role suited to someone comfortable operating within a fast-moving, technically ambitious start-up environment where adaptability, initiative, and collaboration are highly valued.

Training will be provided on ANSYS and other engineering software relevant to the role.

Key responsibilities

• Develop mechanical designs for prototype, pilot, and commercial-scale process systems and equipment.
• Produce and maintain plant layouts, general assemblies, detailed manufacturing drawings, and fabrication packages.
• Create and update 3D CAD models and associated engineering documentation.
• Support equipment integration, piping layouts, structural arrangements, and overall plant configuration activities.
• Work closely with multidisciplinary engineering, chemistry, control systems and operations teams to support technology development and scale-up.
• Assist with design reviews, engineering problem solving, and continuous improvement activities.
• Support prototype build, commissioning, and testing activities where required.
• Liaise with suppliers, fabricators, and contractors to support manufacturing and procurement activities.
• Ensure engineering documentation is accurate, controlled, and maintained to company standards.
• Contribute to safe engineering design practices and support compliance with relevant engineering and safety requirements.

About You

Essential

• Degree in Mechanical Engineering, 2:1 or higher.
• Have a minimum of three years of industry experience.
• Experience using 3D CAD software for mechanical design, FEA and CFD work.
• Strong analytical and problem-solving skills.
• Excellent communication and team-working abilities.
• Enthusiastic, adaptable, and keen to learn in a fast-paced start-up environment.
• Comfortable working across both practical and desk-based engineering activities.

Desirable

• Experience using SolidWorks 3D CAD software.
• Experience working within process industries such as energy, chemical, oil and gas, waste processing, or industrial manufacturing.
• Familiarity with pressure systems, piping layouts, skids, or process plant equipment.
• Experience supporting prototype, pilot plant, or industrial equipment development.
• Experience of fabrication, machining, and practical manufacturing constraints.
• Experience contributing to multidisciplinary engineering projects within a scale-up or R&D environment.

Why Join Us?

• Join an ambitious startup at the forefront of the climate tech revolution.
• Collaborate with a team of passionate professionals in an innovative and supportive environment.
• Play a key role in scaling groundbreaking carbon-negative technologies.

Company Benefits

• Opportunity for flexible working hours
• Private health insurance, life assurance
• Participation in the company’s standard pension scheme with a 5% contribution
• Salary sacrifice EV car scheme, giving you access to a new electric vehicle at a significantly reduced cost
• Company off-site team building days
• Access to company e-bikes for commuting or leisure use
• Annual leave: 25 days annual leave (excluding bank holidays)
• Your birthday off as an extra day of leave
• Share options, giving you the opportunity to benefit from the long-term success and growth of the business
• Career growth supported by training, development, and compliance programmes

Applicants must have the right to work in the UK. We are unable to offer visa sponsorship for this role.

How to Apply

• Please send your CV and a cover letter explaining why you’re the right fit for this role to ***email_hidden***. Applications without a cover letter will not be considered. Be sure to highlight your experience in relation to the essential skills and responsibilities outlined above.