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October 13, 2026

Quality Assurance (QA) Lead Engineer

Mid • Remote

Warsaw, Poland

Quick Facts

  • Role: QA Lead Engineer for the CREST transformation program

  • Focus: Lead end-to-end testing for a migration from legacy systems to an event-based, service-oriented architecture

  • Ways of working: Agile, primarily testing with support for developers

Description

You will lead and deliver a coherent end-to-end testing solution for the CREST transformation programme, working within Scrum teams. The migration moves from legacy to event-based services, using Kafka/Event Hub integration, and requires both functional and non-functional testing. You will define test strategies, manage defects and risks, and build manual and automated test scenarios.

Responsibilities

  • Work in an Agile team to deliver migration of legacy applications to an event-based and service-oriented architecture

  • Deliver and lead an end-to-end testing solution covering functional and non-functional requirements

  • Establish estimation principles for migration phases and propose optimal test approaches

  • Write and present the Test Strategy; propose alternate approaches when needed

  • Peer review test scenarios and test cases; execute scenarios and cases

  • Manage defects effectively, challenge other teams, and perform required analysis

  • Review team deliverables for completeness, suitability, and accuracy; contribute to reporting

  • Identify and escalate risks/issues and propose mitigation actions

  • Facilitate discussions to extract information, devise test approach, and mitigate risks/issues

Requirements

  • ISEB/ISTQB Foundation Certificate in Software Testing

  • Strong analytical skills to extract and analyze relevant information from documentation, system data, and stakeholders

  • Ability to derive manual and automated test scenarios and cases from gathered information, documented to standards with traceability

  • Hands-on Object-Oriented Design and Java programming experience

  • Automation experience using Cucumber, Java, and ADS

  • Analytical and systems design/development skills for distributed, multi-platform solutions

  • Experience implementing Event Hub technology, especially Kafka and Kafka Streams

  • Database design skills (e.g., Oracle) and strength in implementing Java with SQL query work

  • Strong experience working in Agile environments with knowledge of BDD and TDD

  • Experience implementing Continuous Integration/Continuous Delivery pipelines using ADS

  • Understanding and experience of risk-based testing

  • Lead testing and define Test Strategy; present approaches to key stakeholders

  • Excellent defect management and peer review of test cases

Benefits

  • Opportunity to modernize and test a legacy-to-event-based architecture migration in an Agile delivery environment

  • Collaborative role with Scrum Teams, Solution Architect, Product Owner, Technical Lead, and application architects

  • Chance to grow into a T-shaped QA role by building broader business and technical knowledge across squad projects

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