Software Development Engineer in Test

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.

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 software products for high availability.

Integrate testing methodologies and practices within teams, fostering a culture of quality assurance.

Write unit, automated component, contract, integration, and end-to-end tests.

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.

Utilize metrics to identify areas for improvement and guide engineers with actionable steps.

Assist in maintaining test suites, build pipelines, and test data.

You'll Be Great for This Role If :

You have solid programming experience in any language (e.g., Kotlin, Python, JavaScript, Go, Elixir, Java), 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

The opportunity to work on large scale fintech products used by millions of small businesses around the world

Work on a high impact squad that is at the core of the Bank Tribe

A dedicated annual Learning & Development budget 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

A corporate pension scheme

You'd enjoy other great benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidized office lunches and other location-tailored benefits, Babbel language platform subscription and more

You’ll attend global offsites and / or hackathons.

Join a truly global SumUp team of + people from 80+ countries, spread across 4 continents

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.

SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring or employment decisions on the basis of race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy.

SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind.

SumUp will not accept unsolicited resumes from any source other than directly from a candidate.

Job Application Tip

We recognise that candidates feel they need to meet % 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 ok too because it means you have room to learn and develop your career at SumUp.