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Who we are

Solidi is a UK-registered cryptocurrency exchange and custodian, spun out of the University of Cambridge accelerate programme, and one of the first to be licensed by the FCA.

We are focused on providing fast, secure, and intuitive crypto exchange and custody services to customers in the UK and Europe.

Life at Solidi:
Building the Future of Finance

At Solidi, no two days are the same. As a small, fast-moving team, we all get the chance to dive into everything—shaping strategy, designing products, improving customer experiences, and sometimes pitching in on the little things that keep the wheels turning. There are no sidelines here; everyone is hands-on in the work that drives change.

We’re here to disrupt, not defend. Traditional finance is built on protecting what exists. We’re building what comes next. Where others see problems, we see opportunities waiting to be unlocked. And while some worry about the present, we’re focused on creating the future.

Crypto and blockchain are still at the very beginning of their journey. Think of the internet in the mid-1990s: dial-up modems, endless possibility, and everything still to play for. Today, 90% of the UK has never used a crypto or blockchain-based product. Our mission is to flip that number—making this technology simple, trusted, and part of everyday life.

If you thrive on challenge, want your ideas to shape real products, and believe finance is ready for reinvention, you’ll feel at home here. Solidi is where ambitious people come to do the best work of their careers and change the financial system in the process

Benefits of working at Solidi

Flexible Working

We're a remote first, results orientated organisation. We want to maximise our investment in you by ensuring that you have the working environment and hours which suit you.

Flexible Holidays

Everyone gets 28 days holiday which they can take whenever they want. We don't force you to take bank holidays on the day. Want to work through Christmas? No problem. What's more, you can carry over as many holidays as you wish.

Exciting Technology

Crypto and blockchain are two of the biggest innovations in Computer Science and Finance in decades and with recent regulatory changes, the industry is set for one spectacular growth. Join us and be at the forefront.

Total Responsibility

Everyone in Solidi has input into our products. Don't like the way something works? Suggest a fix! Want to add a new feature? Justify the need and do it!

Current Job Openings

Location: Remote, UK or Europe-based

Type: Full-time, Permanent (contractors/freelancers considered)

Salary: Competitive, based on experience

Equity: Meaningful early-stage options

What we offer:

  • Be part of building one of Europe’s most trusted crypto platforms
  • Opportunity to shape the future of crypto in the UK and Europe
  • Early-stage influence on product and codebase
  • Opportunity to grow into a lead role as we scale
  • No bureaucracy, direct access to decision-makers
  • We trust our team — we’re remote-first with core collaboration hours (10–4), and flexibility outside those
  • Competitive salary + share options
  • 28 days annual leave

About Solidi:

Solidi is a UK-registered cryptocurrency exchange and custodian, spun out of the University of Cambridge Accelerate Programme, and one of the first to be licensed by the FCA. We are focused on providing fast, secure, and intuitive crypto exchange and custody services to customers in the UK and Europe. As we scale up, we're looking for a product-focused front-end developer to help expand and improve our web and mobile platforms.

The Role:

This is a unique opportunity to take part in the complete redesign of the main website and mobile platforms, redesigning and rebuilding everything from the ground up. As an early team member, your decisions will shape how thousands of users interact with crypto securely and intuitively.

You’ll join a small, collaborative team and take ownership of the frontend, including:

  • Re-architecting our web frontend into a ReactJS app
  • Helping to architect and implement our upcoming React Native mobile app
  • Working closely with back-end developers and designers
  • Writing clean, well-tested, accessible, and scalable code
  • Shaping engineering practices as part of a small, fast-moving team

Our current tech stack includes Nginx, React, PHP, Bootstrap 4, MySQL, Python, RabbitMQ, Fabric for deployment, and Mocha+BackstopJS for unit and integration testing. We’d expect you to be familiar with most of these - but more importantly we expect you to be a fast learner.

We have a very flat management structure - you’ll report directly to the CTO, but expect to work closely with the CEO.

Requirements:

  • Strong proficiency in React.js and modern JavaScript (ES6+)
  • Solid grasp of CSS/SCSS, responsive design, and component-based architecture
  • Solid understanding of React Native and mobile app development (App Store / Play Store)
  • Familiarity with common state management patterns (e.g. Context API, Redux)
  • Strong experience working with REST & Websocket APIs
  • Experience with PHP
  • Version control via Git & Github
  • Familiarity with browser testing, debugging, and automated testing
  • Security-conscious development mindset
  • Comfort with remote-first work environment: Self-management, careful writing, clear communication
  • 5+ years of demonstrable commercial frontend development (both web & mobile)
  • Bachelor’s degree (or equivalent) in a relevant subject OR significant career history.

Nice-to-have:

  • Relevant advanced degree (Master's or PhD)
  • Typescript & Python
  • Cryptocurrency experience
  • Familiarity with crypto/web3 UX challenges
  • Graphics design experience / workflow management
  • Figma or design-to-code workflows
  • Experience in development of UIs in non-Latin character sets and non-left-to-right languages

Application process:

Our process usually involves completing a questionnaire, initial video interview, a portfolio review and technical interview, and further interviews where you'll meet the people you'll work with. We'll keep you fully informed along the way.

We welcome applicants from diverse backgrounds and non-traditional career paths. If you’re excited by our mission, we’d love to hear from you even if you don’t tick every box.

This position comes with a 6 month probation period

Ready to apply? Complete the linked questionnaire and upload your CV:

https://docs.google.com/forms/d/e/1FAIpQLSeJVa21HBxyjyyUedOzbyj4VtuGENFJQg0-i9TTl4-tSo13Tg/viewform

Closing Date - 30th September 2025 @ 23.59 UTC (but we may close sooner)