Senior E2E Test Engineer - Payments & Channels

About the role

ING Hubs Turkey is looking for a Senior E2E Test Engineer who understands how complete payment journeys work from start to finish. The role combines hands-on end-to-end testing, payment domain knowledge, system integration, API testing and test automation, validating complex payment flows across multiple applications and interfaces. You will work in an Agile and DevOps environment with Product Owners, Customer Journey Experts, IT Business Analysts, Solution Architects, DevOps Engineers and application teams.

Key responsibilities

• Analyse business use cases, functional specifications, solution designs and acceptance criteria to define E2E test coverage.
• Design and maintain test cases covering complete payment journeys across channels, APIs, processing components and downstream systems.
• Execute manual and automated E2E tests, including happy and unhappy flows, error handling, boundary conditions and regression scenarios.
• Validate payment data, statuses and outcomes as transactions move between systems.
• Prepare and maintain test data, test accounts, access rights and environment prerequisites.
• Collect test evidence (expected and actual results, logs, API responses, screenshots, transaction identifiers) and retest resolved defects.
• Build and maintain automated test suites and contribute to ING's internal testing frameworks.
• Collaborate across squads to identify blockers, communicate quality risks and drive issues to resolution.

Required profile

• Bachelor's or Master's degree in Computer Science or a related field, or equivalent practical experience.
• Around 3-6 years of experience in software testing or quality engineering.
• Strong stakeholder management skills and good command of English.

Required skills

• Hands-on experience with E2E, system integration, API, functional and regression testing.
• Experience building and maintaining automated test suites.
• Postman, GitHub, GitHub Copilot and Playwright.

What we offer

• Hybrid working: two days per week at the Vadistanbul office, one week fully remote, plus remote work in August.
• 14 days of welcome leave, training budget and Udemy partnership.
• Health insurance, pension plan, meal card, transportation allowance and multi-sport membership.
• Global mobility opportunities and English language development support.