JOIN US IN CREATING A MORE SUSTAINABLE WORLD
The world is in dire need of change. The excuses are too many and the pace is too slow. Radical innovation at breakneck speeds is the only solution to the climate and energy crisis which is accelerating change in our environment faster than ever. At Supercritical we aim to be the catalyst for sustainable life on earth. Join us on our journey.

We are scientists, we are engineers and we are problem solvers.
We pride ourselves on being innovators and collaborators for the greater good.


We are a fast growing and dynamic team with sustainability at the heart of what we do.
Curiosity and a sense of purpose drive us to push the boundaries of science and technology, leaving a legacy in our wake.
We embrace the opportunity to collaborate and partner, putting trust in ourselves and colleagues above all else.
We welcome diversity and different perspectives and celebrate other’s ideas, taking joy in the challenge and the debate.
Making sense of the unknown and uncovering tomorrow’s solutions, we will pioneer hydrogen technology that enables industry to transition beyond fossil fuels.








BENEFITS
Flexibility and Supportive of Balance
• Flexible start and finish times
• Flexible on home working
• Flexible on working abroad
Parental Leave Policy
3 months full pay for mothers and fathers
Growth Opportunities
Wide range of exposure and development
Support for Training and Accreditation
Professional fee coverage
Monthly Team Days & Lunch Outings
Team Milestone Celebrations
Pension
3% employee contribution +
5% employer contribution
Referral bonuses
Open Positions
We’re presenting an exciting opportunity to a fantastic engineer or scientist to take a leap into the world of commercial and join our commercial team. We are seeking a Sales Engineer / Product Specialist to aid with communication of our technology’s benefits and features to our customers and investors. You’ll report directly to the CPO, working closely with the Business Development Manager and Product Manager to support enquiries and techno-commercial liaison with our customers.
As we progress from proof-of-concept to pilot-scale electrolyser demonstrations (TRL 5-7). This role requires a blend of technical comprehension, market insight, and excellent written and verbal communication skills. You will work closely with R&D, engineering, manufacturing, and commercial teams to clearly and succinctly articulate how our product meets customer and industry needs.
You’ll likely have come from a technical background, and want to be closer to market drivers and enjoy customer interaction. You’ll be around the table and be party to the decision making processes in an exciting and fast moving company that is intent on disrupting the energy industry and enabling a net zero future with green hydrogen.
- Work with the entire spectrum of technical disciplines within the team to understand Supercritical’s technology from an electrochemical molecular level all the way to the full system
- Develop an appreciation for customer needs through close liaison with the commercial team
- Support the commercial team on calls or in meetings to help our customers understand how the technology works and how it could have value to them
- Prepare technical presentations (slide decks) that succinctly and clearly communicate features and benefits in a visually appealing way
- Write technical reports in response to customer enquiries and projects
- Respond to technical queries and question and answer sessions that are posed by new customers and investors as we take our technology to market
- Support in the development of proposals for customer projects and product sales
- Help create effective marketing materials to communicate our story, technology and value proposition
- Maintain awareness and insight into the hydrogen market and competitor technologies and the market
- Help the company secure grant funding by completing applications with compelling reasons for award, matching scope of the competition to the value we offer
Ideally, you will:
- Aspire to inspire those around you. Our team and our customers will look to you to understand the ‘why’ - your passion for our mission and vision will bring others on the journey.
- Have a technical background (e.g., Chemical, Mechanical, Electrical, or Process Engineering or other Scientific / Engineering field).
- Have been exposed to and have enjoyed working with customers
- Be a good active listener and be curious - What did our customers really mean by that remark? That test showed X and Y, but what would that mean to our customers?
- Be excited about n translating customer/partner insights into customer value propositions.
- Demonstrate a strong capacity to build and maintain relationships with cross-functional teams of many different disciplines at all levels both internally and externally.
- Behave with a sense of urgency in delivery, being cognisant of company goals, budgets and deadlines and managing scope, time and budget to achieve them.
- Thrives in a fast-moving, scale-up environment, proactively identifying and solving challenges.
Desirable
- Experience in hydrogen, fuel cells, electrolysis, batteries, or other clean energy technologies.
- Familiarity with electrolyser, hydrogen production, or industrial gas systems.
- Familiarity with grant funding processes and investor relations in clean tech.
- Exposure to project finance considerations in clean tech deployment.
Supercritical is looking for a research and development engineer that will enhance our technology team and move us towards our goals of scaling our cells and modules through advancing our core understanding of the science within our novel operating conditions. You will be passionate about diving into complex problems to pioneer innovative and novel solutions for our challenging operating conditions, while asking “How can we do this better?”. You will come from a scientific or engineering discipline and will have a well-honed capability in research, applying your capabilities to advance product development in a structured way. You will join an exciting and fast moving company that is intent on disrupting the energy industry and enabling a net zero future.
- Characterise a wide range of metal electrodes for hydrogen evolution and oxygen evolution reactions.
- Investigate methods to increase the performance and durability of electrodes.
- Investigate manufacturing and production methods of electrodes and how they affect performance.
- Investigate corrosion tolerance of materials and develop corrosion-resistant coatings.
- Assist with the design and fabrication of electrolyser cells and modules.
- Design experiments, pioneer new test protocols and standardise operating procedures.
- Procure and manage reagents, electrochemical equipment and consumables.
- Work with external research partners to create viable technical solutions.
- Deliver project outputs on time and within budget.
- Work with grant authorities and project partners on large, complex, collaborative projects.
- Report research outputs within the company.
Ideally, you will:
- Have experience with alkaline electrolysis systems at commercial scale.
- Be passionate about a net zero environment, excited by innovation and proactive in your pursuit of it.
- Have 2+ years of industrial experience in materials science, physics, electrochemistry or similar scientific discipline.
- Hold an MSc or BSc in a relevant discipline such as chemistry, electrochemistry or materials science.
- Bring a strong materials science background, ideally with specialisation in metal alloys and multi-metal oxides.
- Perform EIS data analysis, equivalent circuit fittings and distribution of relaxation times (DRT) analysis, draw conclusions from experimental results and present them confidently.
- Be competent at analysing and disseminating results to non-scientists.
- Perform tests, analyse and present results comfortably.
- Demonstrate strong problem-solving skills.
- Have outstanding communication skills, both written and verbal.
- Be proactive and self-motivated, taking initiative to drive towards company goals.
Desirable:
- Hold a PhD in a relevant discipline such as electrochemistry or materials science.
- Have experience in corrosion chemistry.
- Density functional theory (DFT) modelling of alloys
- Experience of working with high pressure/high temperature systems.
- Have experience in start-up or scale-up environments.
apply
Please note that we are not in a position to offer sponsorship. Applicants must have the right to work in the UK for the role that they are applying for.


ABOUT SUPERCRITICAL
By bringing brilliant minds together in an innovation conducive environment, we’ll catalyse net zero.
