SDET (Software Development Engineer in Test) - Financial Services (Python/Java)

SDET (Software Development Engineer in Test)/QA Engineer

• Krakow or Warsaw: Hybrid, 3 days p/w in office

• B2B Contract: 6 months (with possible extensions)

We are looking for a SDET/QA Engineer to work with a leading financial services company in Poland. This role will see you working on an award-winning digital platform enabling the rapid delivery of innovative technologies, impacting over 2 million users.

What You’ll Do

• Define and implement testing strategies to ensure full coverage across platforms

• Develop scalable test automation for API and UI

• Create test automation with Python, and testing backend services and proxies

• Plan and execute performance testing, and incorporate performance testing into CI/CD workflows

• Optimise performance and reliability for hybrid (on-prem/cloud) applications

• Manage and maintain large-scale test data across projects

• Enhance monitoring and alerting through automated checks

• Collaborate with developers, SREs, and security teams to embed quality and observability

• Mentor team members in automation, AI-driven testing, and performance engineering

What We’re Looking For

• 7+ years' experience in test automation

• Heavily experienced in testing primarily with Python, as well as Java

• Experienced in Functional Testing – API, UI

• Experience creating and running API tests in Java

• Environment: ideally experienced working on platforms in banks/financial services, but open to experience with platforms in other domains

• Basic knowledge of Shell scripting for CI/CD

• Basic knowledge of networking: HTTP/s protocols, reverse proxy and load balancers

• Experienced with frameworks such as: Pytest, JUnit/TestNG, and/or RestAssured

Why Apply?

• Join a high-performing team at the heart of investment banking technology

• Join a crucial team responsible for impacting an award-winning digital platform

• Opportunity to work with modern technologies and frameworks

• Hybrid flexibility – typically 3 days in office, with flexibility around hours (later start/later finish).

• Clear, efficient 2-stage interview process.