Software Engineer in Test

Millions of people across Europe want better ways to build long-term wealth, but traditional investing feels complex, inaccessible, or out of reach.

Mintos is solving that. We've built a platform that makes passive income investing simple, transparent, and accessible, and we're expanding fast.

You'll ensure resilience across complex, high-stakes payment flows as we grow to millions of investors. If this is the kind of problem you want to solve, let's talk.

What you'll do

As our Software Engineer in Test, you'll solve the challenge of ensuring reliability, correctness, and resilience across complex, high-stakes payment flows. Your focus will be test automation which means designing automated tests for critical payment journeys, building and maintaining our Cucumber JVM–based automation framework, and validating integrations with banks and payment providers. You'll work with engineering, product, and QA to deliver a Wallet experience that investors can trust with their money and that supports our mission to build Europe’s leading multi-asset investment platform.

You will:

• Design, implement, and maintain automated end-to-end tests for payment flows using Cucumber JVM, Spring, Playwright, and other Java-based tools

• Test critical money-movement scenarios including deposits, withdrawals, internal transfers, and reconciliation

• Own the full test development cycle: BDD scenario design, step definition development, and CI/CD integration

• Apply BDD and contract-first approaches to test integrations with external payment providers, banking APIs, and internal services

• Validate payment state transitions, idempotency, and edge-case behavior (failures, timeouts, partial completions)

• Test compliance with financial regulations such as transaction limits, AML checks, and audit requirements

• Analyze failures, debug flaky tests, and prevent regressions

Your professional skills and background

Must-haves 

• 2+ years of experience in test automation or software engineering

• Hands-on experience with Java, automated API testing, and end-to-end testing

• Ability to apply BDD principles and work with Cucumber JVM or similar tools

• Experience with CI/CD pipelines, Docker, and containerized environments

• Familiarity with SQL and ability to test financial data flows and ledgers

• Strong analytical and debugging skills with an understanding of distributed systems

• Ability to write clear, maintainable, purpose-driven test code

• Good level of written and spoken English

Nice-to-haves

• Experience with Gherkin and practical usage of Cucumber JVM
  

• Background in payments, financial transactions, or banking integrations

• Knowledge of testing asynchronous or event-driven systems (queues, webhooks)

• Knowledge of contract testing tools such as Pact

• Understanding of idempotency testing and distributed transaction patterns

What we offer

💸Competitive salary, starting from 3400 EUR, and stock options. Your experience and contribution matter, and we reflect that in fair compensation. You’ll also receive equity so you can share in the value you help create.

🤹Flexibility that fits real life. We understand how important it is to stay connected with colleagues while having the opportunities to work remotely. Come to the office to collaborate and be productive side by side, work from home when you need to, and spend up to three months each year working from another country.

🌴Generous vacation policy. Rest and recovery are essential. We don’t limit vacation to the minimum required by law. Take the time you need to recharge and come back refreshed.

🧠Learning and growth. An annual €1,200 learning budget to support your professional and personal growth. Whether you want to explore something new or deepen your expertise, we’ll support you along the way.

☕Very well equipped office. Comfortable environment matters. When in the office, enjoy the parking, showers, kitchen with snacks and drinks, massage chair, nap room and others.

Proud to be recognized for fairness
Mintos was recognized by Figure Baltic Advisory for fairness and equality in compensation and representation, achieving 3rd place in 2025.

International team of 170+ people from 17+ countries

Join a diverse team where different perspectives and experiences are valued. We work across Europe, share ideas openly, and collaborate to solve meaningful challenges together.

Mintos is an equal opportunity employer. We're committed to building a diverse team and creating an inclusive workplace for everyone. If you need accommodations during the interview process, contact us at [email protected].