Software Development Engineer in Test

Location: Vilnius, Lithuania Departments: QA

In the Global Bank Team at SumUp, we are building the infrastructure and core services needed to provide our merchants with a digital bank account that allows them to be successful at doing what they love. Our goal is to become the most popular banking partner for small merchants globally by offering a high-quality banking experience tailored to small business needs - effortless, simple, and affordable.

As our global banking platform continues to grow, so does the feature-set we support and the technology estate upon which it’s built.

Therefore, we are seeking Software Development Engineers in Test (SDET) to join our team. You'll collaborate across the Global Bank team to improve software quality through automated testing practices. Shape our test strategy, build test packs, identify quality gaps, and integrate automated tests from mobile UI to data tier. Help us to accelerate delivery while maintaining a high quality bar.

What You'll Do

• Define and implement robust testing strategies for stream-aligned squads, ensuring software reliability.
• Write and maintain unit, component, contract, integration, and end-to-end tests, ensuring automation frameworks are scalable and efficient.
• Provide end-to-end support for performance and load testing, including workload modeling, test execution, and results analysis.
• Collaborate closely with software and DevOps engineers for seamless deployment and continuous integration.
• Periodically audit squads’ testing strategies and implementation - from the quality of the scenarios to the reliability of the test reports.
• Support engineers in designing, testing, and iteratively improving high-availability software while fostering a culture of quality assurance.
• Utilize metrics to identify areas for improvement and guide engineers with actionable steps.

You'll Be Great for This Role If

• You have solid programming experience in any language (e.g., Kotlin, Go, Elixir, Java, Python, JavaScript), and are experienced in writing and maintaining unit, component, contract, integration, and end-to-end tests.
• You have mobile automation experience with any tool that requires coding and can create robust automated testing frameworks.
• You are experienced with performance and load testing, including workload modeling, test execution, and results analysis.
• You have experience managing build pipelines, integrating tests, and working with Continuous Deployment.
• You have experience developing on a microservice architecture with good test architecture design skills.
• You are proficient with Git, design patterns, Docker containers, Kubernetes, and the AWS ecosystem. Familiarity with Grafana and Honeycomb is a plus.
• You have solid knowledge of relational databases.
• You take ownership of everything you ship and believe in the power of teamwork and collaboration.

Nice to Have

• Experience in the fintech industry.
• Knowledge of Kafka.
• Knowledge of PostgreSQL.
• GitHub Actions experience.
• Experience with mobile test automation.

Why you should join SumUp

• We’re a truly global team of 3200+ people from 80+ countries, spread across 4 continents.
• 25 days annual leave + Birthday Leave.
• A dedicated annual Learning & Development budget (€2000/year) for attending conferences and/or advancing your career through further education.
• Enrollment onto our virtual stock ownership program - you will own a stake in SumUp’s future success.
• The opportunity to work on large-scale fintech products used by millions of businesses around the world.
• Health Insurance, Death & Disability Insurance.
• Access to the SumUp Sabbatical, our Employee assistance program for mental health, as well as Fitness and Transport allowance and language learning benefits.
• You’ll attend global offsites and/or hackathons.

Salary range: 4375 - 7000 Euro GROSS / month + Virtual Stock Options + €2000/year Learning & Development budget.

About SumUp

We believe in the everyday hero.

Small business owners are at the heart of all we do, so we create powerful, easy-to-use financial solutions to help them run their businesses. With a founder’s mentality and a 'team-first' attitude, our diverse teams across Europe, South America, and the United States work together to ensure that the small business owners we partner with can be successful doing what they love.

Job Application Tip

We recognize that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s okay too because it means you have room to learn and develop your career at SumUp.