Software Engineer (Java)

Epassi; Finland; Remote; GBP 45,000 - 65,000; Full time

Job summary

Epassi is hiring a Mid-Level Software Engineer (Java) to join a cross-functional backend team powering our product vision. You'll own backend services, grow technically, and contribute to reliable releases using Java Spring Boot.

Based in the UK or other European locations, you’ll work in an AI-native engineering environment, collaborate across the stack, and participate in agile ceremonies to continually improve the product and platform.

Qualifications

• 2–4 years of professional software engineering experience, with at least 1 year building backend services with Java.
• Solid Java & Spring Boot foundation with REST APIs and lifecycle awareness.
• Experience with relational databases and JPA/Hibernate.

Responsibilities

• Build and maintain high-quality backend services using Java Spring Boot and own your work end-to-end.
• Write clean, secure, and testable code following engineering standards.
• Design RESTful APIs and collaborate with frontend engineers on contracts.
• Ensure code quality via unit/integration tests and code reviews.
• Debug and resolve issues in development and production, communicating root causes clearly.
• Identify technical debt and propose improvements as you grow.
• Support CI/CD pipelines and deployment processes and participate in agile ceremonies.

Skills

Java & Spring Boot

REST APIs design

Testing (JUnit/Mockito)

Data persistence (JPA/Hibernate)

Git version control

CI/CD basics

AI-assisted development

Containerisation (Docker)

Tools

Docker

JUnit/Mockito

Git

Spring Boot tooling

Job description

Epassi’s purpose is to boost everyday well-being.

We are a leading provider of employee benefit solutions in Europe. We were established in Finland in 2007, and in 2008 we were the first company to launch a mobile-payable employee benefit payment solution in Europe. Since then, we have consistently grown, diversifying our products and introducing our services into new markets. Epassi has been awarded by the Financial Times as one of the fastest-growing companies in Europe on multiple occasions.

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 experienced backend developer ready to grow and deliver impactful services at one of Europe's fastest-growing companies?

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 Mid-Level Software Engineer (Java) to be based in either Finland, Germany, Poland, Netherlands, Sweden, Spain or UK. The preferred location is Finland or 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 be a core contributor on a cross-functional product team, building and evolving backend services using Java Spring Boot that power Epassi's product vision. We are adding this role to strengthen our backend engineering capacity and bring meaningful features to life reliably and at quality. You will take ownership of defined service areas, work confidently across the stack, and grow into greater technical responsibility over time.

Your Responsibilities

• Build and maintain high-quality backend services using Java Spring Boot, taking ownership of your work from implementation through testing and release
• Write clean, secure, and testable code following agreed engineering standards, making it easy for your team to review, understand, and build upon
• Design and implement RESTful APIs in collaboration with Frontend Engineers, ensuring reliable contracts and well-handled edge cases
• Ensure code quality through unit and integration tests, thorough code reviews, and participation in refactoring efforts
• Debug and resolve issues in both development and production environments, communicating clearly about root causes and fixes
• Identify and flag technical debt within your areas of ownership, proposing improvements as your confidence grows
• Support CI/CD pipelines and deployment processes, developing your understanding of how services are built and released
• Participate actively in agile ceremonies — planning, refinements, reviews, and retrospectives — and document your technical decisions

What You Should Bring

• 2–4 years of professional software engineering experience, with at least 1 year building backend services with Java in a professional setting. A Computer Science degree or equivalent is not required — we care about what you can build and how you think, not where you studied.
• Java & Spring Boot (solid): Solid hands-on experience building backend services with Java and Spring Boot, including REST APIs, dependency injection, and the Spring application lifecycle
• Data persistence: Working knowledge of JPA/Hibernate and relational databases — writing queries, understanding entity relationships, and basic schema design
• API design: Comfortable designing and implementing RESTful APIs with a good understanding of HTTP semantics, status codes, and error handling
• Testing: Familiarity with writing unit and integration tests in Java (e.g. JUnit, Mockito); experience with test-driven development is a plus
• Version control: Confident use of Git, including branching strategies, pull requests, and resolving merge conflicts in a team environment
• CI/CD basics: Awareness of CI/CD concepts and experience working within an automated build and deployment pipeline
• AI-native development: Familiarity with AI coding tools such as Copilot or Cursor is a plus — we're an AI-native team and are happy to help you develop this further
• Containerisation: Basic familiarity with Docker and how containerised services are built and run

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.