Junior Software Engineer

Job Description

Are you interested in joining one of Europe's fastest-growing companies? Do you want to impact the wellbeing of millions of users?

Are you an emerging full stack developer looking to grow fast, with a passion for building things users actually touch, from the API to the screen?

If yes, keep reading and join us to make an impact in a fast-paced and dynamic environment where you'll play a key role in boosting everyday wellbeing, at home, at work. Everywhere!

We are currently hiring a Junior Full Stack Engineer to be based in either Bremen, Hamburg or Berlin in Germany.

Epassi's purpose is to boost everyday well-being. We are a leading provider of employee benefit solutions across Europe, established in Finland in 2007. We were the first company to launch a mobile-payable employee benefit payment solution in Europe, and have been recognised by the Financial Times as one of the fastest-growing companies in Europe on multiple occasions. We are an AI-native engineering organisation — we build with AI tools, we iterate with AI tools, and we expect our engineers to embrace this as a core part of how great software gets made.

Your Mission at Epassi

You will join a cross-functional product team as a developing engineer, contributing to both the backend services (Java Spring Boot) and the frontend experiences (React for web, React Native for mobile) that support Epassi's product vision. This role is designed for someone early in their engineering career who is eager to learn across the stack, contribute, and grow in a supportive team environment. You will work closely with senior colleagues, build your skills on real production software used by millions, and take on increasing responsibility over time.

Your Responsibilities

• Implement well-scoped features end to end, across Java/Spring Boot services and React / React Native interfaces, with guidance from senior engineers
• Build and consume RESTful API endpoints, learning best practices for API design and for integrating APIs on the client side
• Build and maintain UI components and screens for our web and mobile apps, working from designs provided by the Design team
• Write clean, readable code and tests (JUnit on the backend, component/unit tests on the frontend), acting on code review feedback to continuously improve
• Fix bugs reported by QA or from production monitoring, investigating root causes across the stack and communicating your findings clearly
• Participate in code reviews, receiving feedback constructively and starting to review others' work as your confidence grows
• Collaborate with Product, Design, and QA to understand requirements before implementation, asking questions to close gaps
• Take part in agile ceremonies (planning, refinements, reviews, retrospectives) and contribute to team discussions

What You Should Bring

• 0–2 years of professional experience in software engineering. You may have some experience in a working environment or be a fresh graduate. Internships, bootcamp projects, or personal projects building web apps, mobile apps, or APIs are equally welcome.
• Java fundamentals: object-oriented principles, core syntax, collections, and exception handling
• Spring Boot basics: some exposure, and an understanding of how a basic REST controller works
• JavaScript/TypeScript and React fundamentals: components, props, state, hooks, and rendering a UI from API data
• REST APIs: HTTP methods, request/response structure, and status codes
• Data persistence basics: awareness of how applications interact with databases; SQL or JPA/Hibernate exposure is a plus
• Testing awareness: an understanding of why testing matters and some exposure to writing tests (e.g. JUnit, Jest)
• Version control: basic Git proficiency, including branching, pull requests, and how code review works
• Eagerness to learn: a genuine desire to grow across the stack, ask questions, and improve through feedback. This matters more than any specific tool or framework at this level.
• Nice to have: React Native exposure, and any experience with AI coding tools like Copilot or Cursor. Neither is expected, and we'll help you build these skills as part of how we work.

Why You Should Join Us

• Be part of an ambitious growth journey and join a global community of driven, bold, entrepreneurial, yet humble Epassians.
• Work with a clear purpose — boosting everyday wellbeing — and create a meaningful, positive impact on individuals and society.
• Thrive in an open and inclusive culture with low hierarchy, built on respect, camaraderie, and shared successes.
• Come as you are — we'll bring out the best in you and support your personal and professional growth.
• Join a fast-growing tech company with a strong financial foundation, offering opportunities to grow and make an impact.
• Benefit from an inspiring and supportive work environment where employee wellbeing is a true priority.
• Help shape the next wave of success as we solidify our position as Europe's number one employee benefit platform.