Senior E2E Test Engineer

ING Wholesale Banking; Fatih; On-site; TRY 300,000 - 420,000; Part time

Job summary

ING Wholesale Banking is seeking an experienced QA professional to lead end-to-end testing across comprehensive payment journeys. You will design and execute manual and automated tests, build robust automation with Playwright, and collaborate across squads to manage quality risks.

The role requires 3–6 years of software testing experience, strong English communication, and the ability to translate complex requirements into effective test cases and automation strategies.

Qualifications

• Bachelor’s or Master’s degree in Computer Science or a related field or equivalent 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 from business requirements and technical designs.
• Experience building and maintaining automated test suites.
• Practical experience with Postman, GitHub, GitHub Copilot, and modern automation frameworks such as Playwright.
• Ownership mindset from test prep to execution and evidence gathering.
• Strong stakeholder management and ability to translate testing topics into risks and decisions.
• Proactive and resilient with shifting priorities and delivery pressure.
• Strong problem-solving, communication, and presentation skills.
• Good command of English and collaboration across international teams.

Responsibilities

• Analyze business use cases, functional specifications, solution designs, and acceptance criteria for 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.
• Validate payment data, statuses, and outcomes as transactions move across systems.
• Prepare and maintain test data, accounts, access rights, and environments.
• Collect clear test evidence: expected vs. actual results, logs, responses, and identifiers.
• Retest defects and perform targeted regression to avoid new issues.
• Build and maintain automated test suites and move scenarios to automation.
• Collaborate across squads to identify blockers and communicate quality risks.

Skills

End-to-end testing

API testing

Automated testing

Playwright

Postman

GitHub

English communication

Stakeholder management

Education

Bachelor’s or Master’s degree in Computer Science or related field

Tools

Playwright

Postman

GitHub

GitHub Copilot

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