Industry-leading quality testing for mission critical AI
At Maihem, we’re on a mission to ensure AI benefits <u>all</u> of humanity by making it safe, aligned, and controllable in <u>all</u> real-world applications. As AI systems grow more autonomous, the risks of security vulnerabilities, unintended behaviors, and systemic failures present urgent challenges—yet most organizations lack the tools to test and deploy these systems adequately.
We’re changing that. Our AI-powered simulation platform lets companies stress-test and optimize the performance, security, and safety of their agentic AI systems. A CTO of a $10bn+ enterprise called Maihem “the most advanced AI testing and evaluation system we’ve seen.” That enterprise is now a customer, using our technology to build their agentic workforce responsibly.
Founded by AI researchers with PhDs from Oxford and Imperial College and backed by Y Combinator and a $6M seed round, Maihem is building a future where AI serves all of humanity safely. As our Senior Frontend/UX Engineer, you’ll play a crucial role in shaping this future , ensuring that our tools are intuitive, impactful, and ready to power the most advanced AI systems. Please note that this roles requires you to be with us in person, 5 days/week.
Max Ahrens (CEO) did his PhD and Postdoc in Natural Language Processing at the University of Oxford. During his Postdoc, he won a $500,000 research grant with the Alan Turing Institute and the British Ministry of Defence, working as a research project leader on topics of AI-based narrative detection in online media. Previously, he worked as a consultant with McKinsey, advising globally operating companies on digitization strategies.
Eduardo Candela (CTO) holds a PhD in AI Safety for Autonomous Vehicles at Imperial College London, and an MSc in Operations Research from MIT. Eduardo is deeply passionate about building state-of-the-art AI products – he previously worked as a Technical Program Manager at Tesla and a Data Scientist at the Bosch Center for AI.
We are solving a generational problem by ensuring AI benefits all of humanity.
Work with leading global companies, helping them to test and deploy some of the most advanced (agentic) AI systems.
Work with founders who hold PhDs in AI Safety from Oxford and Imperial College London and who have worked on AI at MIT, Tesla, and the Alan Turing Institute. Join our all-star team!
Work in a YC startup. YC is the best startup accelerator in the world and we are part of its incredible network.
We have the resources to achieve our mission. We have raised a $6 million seed round backed by Y Combinator, Moonfire, Firstminute, SciFi, Urban Innovation Fund, and other world-class investors including founders from PayPal, Slack, and Deel.
Turbo-charge your career in a startup : solve new problems and learn new things every day in an energetic, hard working, and fun startup environment. You will have to wear multiple hats from day 1.
Lasting impact: you will directly shape the product and company culture from the start, and influence the roadmap and success of the startup.
Ownership and autonomy : You will own and build end-to-end solutions to various challenging technical problems.
“The ideal startup engineer is relentlessly resourceful, owns a problem and solves it end-to-end, craves ownership and has experience – and they have fun learning new things every day.”
Nerdy, collegial, relentlessly curious – we are proud and friendly nerds and we intensely love what we do!
Meritocracy, always – you own and earn your destiny. The best argument wins, not the loudest voice or the most senior team member.
Work hard, play hard – we work very hard to tackle a generational problem and expect the same from our team. We also have lots of fun as a team inside and outside of the office.
Diversity and inclusion among humans, for diversity and fairness reflected in AI.
In person is where the magic happens – our team works out of the office 5 days/week and is excited about this part of our energetic and collaborative startup culture.
As Maihem’s Senior Frontend/UX Engineer, you will directly design and build the products around the most advanced AI simulation and stress-testing platform in the world. In particular, you will own the design and development of the Maihem webapp and website, including significant autonomy and responsibility in this senior role.
You will have previously demonstrated the ability to build world-class software products.
Your qualifications
3+ years of experience developing web applications
1+ years of experience in UX design for products and websites
Excellent communication skills and team player mentality
Required skills
Javascript
React/ Next.js
Tailwind
Figma
Nice to have
Worked at a fast-paced startup before
Experience with shadcn/ui components
Experience with basic Python
Experience with basic AI and LLMs
Webflow or similar tools for building websites
Experience with SQL
Competitive compensation: GBP 70-100K + performance bonus + equity
Private health insurance
Pension contributions
Free lunch
Free gym
Nice office in central London
Curiosity allowance for books, courses, museum memberships, library cards, ...
Note regarding in-office requirements: Our team works out of the office 5 days/week and is excited about this part of our energetic startup culture. Please only apply if you'd be excited too.
Note to recruiters: We kindly request that agencies or recruiters do not contact us regarding this role. We are managing this hiring process directly and appreciate your understanding.
At MAIHEM, our mission is to ensure that AI benefits all of humanity.
We are building AI agents that stress-test other AI applications. We have just raised a $6 million seed round back by Y Combinator, Moonfire, Firstminute, SciFi, Urban Innovation Fund, and other world-class investors including founders from PayPal, Slack, and Deel.
We are building a state-of-the-art simulation platform using AI agents that stress-test other AI applications. We enable companies to assess and optimize the performance, reliability, and security of their AI systems through hyper-realistic user simulations. We ensure AI systems work reliably for all humans and across all real-world use cases – not just on academic benchmarks.