Senior E2E Test Engineer

ING; Fatih; On-site; TRY 2,985,000 - 4,478,000; Full time

Job summary

ING is seeking an experienced QA/Quality Engineer to define and execute end-to-end test coverage for complex payment journeys. The role involves designing test cases from requirements and technical designs, building automated test suites, and validating data and outcomes across systems.

You will collaborate with cross-functional teams to identify blockers, communicate risks, and drive quality improvements while maintaining ownership from test preparation through execution and evidence collection.

Qualifications

• Bachelor’s or Master’s degree in Computer Science or related field, or equivalent practical experience.
• 3–6 years of experience in software testing or quality engineering.
• Hands-on experience with end-to-end, system integration, API, functional, and regression testing.
• Experience designing test cases based on requirements, functional specs, user journeys and technical designs.
• Experience building and maintaining automated test suites.
• Proficiency with Postman, GitHub, GitHub Copilot and modern automation frameworks such as Playwright.
• Hands-on ownership mindset from test prep to execution, evidence, retesting and follow-through.
• Strong stakeholder management and ability to translate testing topics into clear risks and decisions.
• Proactive and resilient approach when priorities shift or blockers arise.
• Strong problem-solving, communication and presentation skills.
• Good command of English and collaboration across international teams.
• ISTQB Certification (Foundation Level / Agile Tester Level) and experience in test automation.

Responsibilities

• Analyze business use cases, specs, and designs to define comprehensive E2E test coverage.
• Design and maintain test cases for complete payment journeys across channels and systems.
• Execute manual and automated E2E tests, including happy/unhappy paths and regression scenarios.
• Validate data, statuses and outcomes as transactions move between systems.
• Prepare and maintain test data, accounts, access rights and environment prerequisites.
• Collect test evidence with logs, responses, screenshots and identifiers.
• Retest defects and perform targeted regression testing to ensure fixes.
• Build and maintain automated test suites and advance E2E scenarios toward automation.
• Collaborate across squads to identify blockers and communicate quality risks.

Skills

End-to-end testing

System integration testing

API testing

Functional testing

Regression testing

Test case design

Stakeholder management

English communication

Education

CS degree (Bachelor/Master)

Tools

Postman

GitHub

GitHub Copilot

Playwright

Job description

How to Succeed

• Analyze business use cases, functional specifications, solution designs, and acceptance criteria to define the right 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 flows, unhappy flows, error handling, boundary conditions, and regression scenarios.
• Validate payment data, statuses, and outcomes as transactions move between different systems.
• Prepare and maintain test data, test accounts, access rights, and environment prerequisites.
• Collect clear test evidence, including expected and actual results, logs, API responses, screenshots, and relevant transaction or message identifiers.
• Retest resolved defects and perform targeted regression testing to ensure fixes don’t create unintended impact elsewhere in the payment chain.
• Build and maintain automated test suites and help move E2E scenarios from manual testing toward maintainable automation.
• Collaborate across squads and domains to identify blockers, communicate quality risks, and drive issues toward resolution.

About You

• A 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 hands‑on experience with end-to-end, system integration, API, functional, and regression testing.
• Experience designing test cases based on business requirements, functional specifications, user journeys, and technical designs.
• Experience building and maintaining automated test suites.
• Practical experience with Postman, GitHub, GitHub Copilot , and modern automation frameworks such as Playwright.
• A hands‑on ownership mindset, taking responsibility from test preparation through execution, evidence, retesting, and follow-through.
• Strong stakeholder management skills and the ability to translate complex testing topics into clear risks and decisions.
• A proactive and resilient approach when priorities shift, dependencies create blockers, or delivery pressure increases.
• Strong problem-solving, communication, and presentation skills.
• Good command of English and confidence collaborating across international teams.

Desired skills

• ISTQB Certification (Foundation Level / Agile Tester Level)
• Experience in test automation field