Fullstack Developer

Our Technology team builds and owns the platforms and products that power MultiSafepay’s payment solutions. Working across a modern stack - React, Next.js, Node.js, NestJS, PostgreSQL, and headless commerce integrations via MedusaJS - the team takes full ownership of features from concept through to production, with a strong emphasis on scalability, performance, and clean architecture., * Designing and implementing scalable, high-quality frontend features using React and Next.js, with a focus on performance and user experience

• Contributing to backend development with Node.js and NestJS, and modelling and optimising PostgreSQL schemas, queries, and migrations
• Defining system architecture, feature design, and data flow across the full stack
• Integrating REST and GraphQL APIs and working with headless commerce platforms such as MedusaJS
• Taking ownership of features from concept through to production release, writing clean, well-tested, and maintainable code throughout
• Mentoring and guiding mid-level and junior developers across the team

• 5+ years of professional web development experience, with deep expertise in React and Next.js (SSR, SSG, routing, and performance tuning)
• Strong proficiency in JavaScript and TypeScript, with hands-on Node.js experience (NestJS a strong plus)
• Solid knowledge of PostgreSQL including schema design, query optimisation, and migrations
• Experience with system design, feature architecture, and data flow modelling across the stack
• Familiarity with headless commerce ecosystems such as MedusaJS, Shopify Headless, or Saleor
• Strong problem-solving skills and the ability to thrive in a fast-paced, collaborative environment
• Proficiency in English with strong communication skills
• Production experience with React Native is a strong plus, as is exposure to Docker, CI/CD pipelines, and AWS

• A competitive salary and benefits package, including comprehensive health insurance
• Relocation support
• Opportunities for professional growth
• A diverse role within a dedicated international team of enthusiastic colleagues
• Office with an amazing view of the beach
• Free Spanish classes and optional afterwork sports activities

MultiSafepay is a leading payment service provider, offering omnichannel and advanced payment solutions to businesses across Europe. We are innovative and fast-growing, building powerful solutions that transform the way our clients do business. We focus on delivering real solutions to their challenges and always stay ahead of the curve. In short, we are a true FinTech.

We’re on a mission to make payments simple, secure, and accessible for every business. With powerful in-house technology and deep expertise, our modular platform brings online, in-person, and cross-border payments together in one place - giving merchants the flexibility to scale on their own terms. Through a partnership-first approach, we tackle complexity head-on, keep payments running smoothly, and boost success rates. It’s how we level the playing field for businesses of all sizes and ambitions.