Cryptio is building the data infrastructure for the crypto economy. Our enterprise-grade back-office platform helps businesses and institutions automate financial reporting and compliance for digital assets—so they can navigate the crypto space with confidence. Backed by top investors like Point Nine, 1kx, and BlueYard, we’ve raised $26M and work with industry leaders like Circle, Uniswap, and even the Government of El Salvador. Currently, we are a team of 80 amazing people. Crypto needs better infrastructure to go mainstream—and we’re here to build it!
At Cryptio, we’re a remote-first team, with most working 100% remotely, while others enjoy a mix of office time in our hubs in London or Paris. This role requires candidates to be based in the UK, and we support the setup that works best for your lifestyle and productivity—whether that’s fully remote, in the office, or a blend of both!
We’re looking for a Junior Fullstack Engineer to join one of our fast-moving product squads. You’ll work closely with both our frontend and backend leads to improve connectivity across our stack, contribute to new features, and help strengthen our internal libraries and tooling. This is a great opportunity to grow your technical skills in a high-performing, supportive environment—while making a real impact on our product and customers.
Languages & Frameworks: TypeScript, JavaScript, HTML, CSS
Frontend: React, TailwindCSS, Emotion, React Query, Playwright, Jest
Backend: NestJS, REST APIs
Tooling: GitLab, Git
Architecture: Microservices with strong code sharing across teams
This is a fantastic opportunity for an early-career engineer to grow in a fast-paced, collaborative environment. You’ll work on both the frontend and backend of our core product, contributing to meaningful features and helping improve our development workflows. You’ll be learning from experienced engineers, contributing to production code from day one, and playing a key role in shaping the future of crypto financial tooling.
Write clean, production-grade TypeScript code (both frontend and backend)
Maintain and improve our backend APIs and shared libraries
Contribute to our testing framework and write robust E2E and unit tests
Help reduce technical debt and improve developer experience
Work on new features end-to-end with product and engineering teams
3+ years of full stack development experience
Strong HTML, CSS, and JavaScript fundamentals
Hands-on experience with React, TypeScript, and NestJS
Familiarity with styling tools like TailwindCSS or Emotion
Experience with frontend testing frameworks like Jest or Playwright
Comfort working with REST APIs and managing state using tools like React Query
Strong communication skills in written and spoken English
Familiarity with modern development workflows (Git, GitLab)
A collaborative, team-first mindset
Interest in or knowledge of the crypto ecosystem
Previous experience with data-heavy products
Experience working in a startup or fast-paced environment
Talent Screen – 45 min
Technical Interview – 60 min
Team Interview – 45 min
Leadership Interview – 45 min
✨ Fully-Remote / Hybrid – The choice is yours! 🌍🏡
🎉 25 Days Paid Holiday + Bank Holidays
🎂 Your Birthday Off
⭐️ Earn an extra day of annual leave for every year you’re at Cryptio 🎁
🧠 Access to Mental Health, Wellbeing, and Coaching 🌿🎯
👶 Attractive Maternity and Paternity Policies for your growing family 👨👩👧👦
💪 Gym Classes or Spa Treatments with ClassPass (or gym reimbursements)! 🧘♂️🧖♀️
💻 Apple MacBook Pro – The best tech at your fingertips! 💻✨
💵 $200 Workplace Budget to create your perfect home office! 🏠💼
📚 Training and Development Budget – Invest in yourself and grow! 🚀
*UK have these additional benefits: 4% Pension Contributions towards your future + Private Medical & Dental Insurance with Allianz.
*France have these additional benefits: English language course options.
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