> Markdown version of [/jobs/ext/3082349-full-stack-engineer-frontend](https://www.wearedevelopers.com/jobs/ext/3082349-full-stack-engineer-frontend). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full-Stack Engineer (Frontend) - **Company:** Bjak - **Location:** Cardiff, UK - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, User Authentication, Databases, Software Debugging, Next.js, Systems Integration, ReactJS, Backend, Vue.js, Front End Software Development - **Published:** September 26, 2026 - **Apply:** https://www.totaljobs.com/job/full-stack-engineer/bjak-job108043791 ## About the Role Strong full stack engineering experience with real shipped products. Comfortable across frontend, backend, APIs, databases and production debugging. Good frontend execution using React, Next.js, Vue or similar modern stack. Good backend fundamentals around APIs, data models, authentication, integrations and reliability. Strong product sense and ability to simplify messy workflows. Able to work fast with ambiguity and own outcomes end-to-end. This Role Is Not For Engineers who only want to work on one narrow layer. People who need complete specs before starting. Developers who ship UI without understanding backend or operations impact. Candidates who avoid production support. People who make vague claims without showing real shipped work., English is our main working language across global teams. Strong English communication is required. ## Description We are looking for full stack engineers to build fast across BJAK's AI Neobank app. This role is for product-minded engineers who can move across frontend, backend, internal tools and customer journeys to turn ideas into working products quickly. What You'll Own Build and ship full product features across frontend, backend, APIs and databases. Create customer and internal workflows for onboarding, accounts, payments, rewards, travel, FX, support automation, KYC and risk. Turn ambiguous product problems into working systems with clean UX and reliable backend logic. Work closely with product, design, mobile, backend and AI engineers to launch fast and improve after release. Build internal tools and automation that reduce manual work and help teams operate at scale. Own your work beyond release: monitor, debug, learn and improve. ## Related Videos - [GraphQL + Apollo + Next.js: A Lovely Trio](https://www.wearedevelopers.com/videos/311-graphql-apollo-next-js-a-lovely-trio) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Lessons learned from building a thriving Vue.js SaaS application](https://www.wearedevelopers.com/videos/1666-lessons-learned-from-building-a-thriving-vue-js-saas-application) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [From Zero to Hero: NextJS 13 and Tailwind CSS for Beginners](https://www.wearedevelopers.com/videos/766-from-zero-to-hero-nextjs-13-and-tailwind-css-for-beginners) - [Common Mistakes in Vue.js and How to Avoid Them](https://www.wearedevelopers.com/videos/958-common-mistakes-in-vue-js-and-how-to-avoid-them) ## Related Articles - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)