May 1, 2026

Senior QA Automation Engineer (JavaScript)

Senior • Hybrid

90 - 120 PLN

Warsaw, Poland

We are looking for a Senior QA Automation Engineer who breathes backend testing. If you are tired of UI testing and want to focus 100% on complex backend APIs, this is the role for you. There is absolutely zero UI testing involved here. You will be responsible for testing high-scale, high-availability backend systems hosted exclusively on AWS. While our team currently leans towards JavaScript and tools like Playwright or Cypress, we are highly flexible - if you are a backend testing expert who prefers Python or Golang and uses different frameworks, we want to talk to you!

Essential functions

  • Own Backend Quality: Develop, maintain, and scale QA tools and frameworks specifically designed for complex REST API and backend automated testing.

  • Define Test Strategy: Design and execute complex end-to-end, contract, load, and chaos tests integrated seamlessly into CI/CD pipelines.

  • Collaborate & Optimize: Work closely with Engineering and Product teams to identify application faults, improve QA processes, and optimize test metrics across the organization.

  • Document & Report: Create comprehensive test plans, maintain automation scripts, report bugs, and communicate quality metrics effectively.

  • Promote Best Practices: Act as a QA advocate, defining design principles for automated test procedures and elevating the overall testing culture within the team.

  • Hands-on Exploration: Execute exploratory and manual API tests when necessary to uncover edge cases in high-availability environments.

Qualifications

  • 5+ years of experience in QA Automation with a strict focus on Backend/API testing (this role does not involve any front-end/UI testing).

  • Programming Proficiency: Strong coding skills in JavaScript (preferred), Python, or Golang (Please note: standard Java is not a fit for this stack).

  • Testing Frameworks: Familiarity with modern automation tools. We prefer Playwright or Cypress, but we are highly flexible if you use other robust backend testing tools (e.g., K6, Gremlin, PACT).

  • Deep API Knowledge: Extensive hands-on experience testing REST APIs and implementing various test types (E2E, contract, load, chaos).

  • Engineering Practices: Proficiency with Git, version control workflows, and integrating tests into CI/CD pipelines.

  • Communication: Fluency in English (B2 level or above) with the ability to clearly explain test progress and quality issues.

Would be a plus

  • Hands-on experience with AWS services (specifically SQS, SNS, DynamoDB, and S3).

  • Background in testing financial systems or working in high-scale, distributed environments.

  • Solid understanding of observability practices (monitoring, tracing, alerting).

  • A proven track record of proactively improving QA processes and establishing quality metrics within a team.

We offer

  • Opportunity to work on bleeding-edge projects

  • Work with a highly motivated and dedicated team

  • Competitive salary

  • Flexible schedule

  • Benefits package - medical insurance, sports

  • Corporate social events

  • Professional development opportunities

  • Well-equipped office

About us

Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.

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Remote

Warsaw, Poland

🏢 Summary: Hands-on QA Automation Engineer role focused on ensuring quality and reliability of English Language Learning platforms through automated testing of frontend and backend systems. The position involves designing and maintaining UI and API test automation, integrating tests into CI/CD pipelines, and collaborating closely with engineering teams in an Agile environment. Strong ownership of quality, risk identification, and continuous delivery support are key expectations. 🗂️ Requirements: Proven experience as QA Automation Engineer, Strong hands-on experience with Playwright for UI and API testing, Solid programming skills in Java, Experience testing web applications, Experience testing REST APIs and service integrations, Strong understanding of test design and test strategies, Experience with automated testing (unit, integration, end-to-end), Experience with CI/CD pipelines and test automation integration, Experience with Git version control, Familiarity with Agile/Scrum, Comfort using AI-assisted development tools 📃 Skills: Playwright, Java, REST, API, CI/CD, Git, Agile, Scrum, Cucumber, BDD 🏢 Description: We are looking for an experienced QA Automation Engineer to ensure the quality and reliability of core English Language Learning platforms. This role is hands‑on and delivery‑driven. You will be responsible for designing, implementing, and maintaining automated test solutions across frontend and backend systems, supporting continuous delivery of high‑quality software. The expectation is strong ownership over quality outcomes, proactive identification of risks, and the ability to work closely with engineering teams to ensure quality is built into the development process. We are looking for you, if you have: Proven experience as a QA Automation Engineer Strong hands-on experience with Playwright for UI and API testing Solid programming skills in Java (test frameworks, automation support) Experience testing: Web applications REST APIs and service integrations Strong understanding of: Test design and test strategies Automated testing (unit, integration, end-to-end) Experience with: CI/CD pipelines and test automation integration Version control systems (Git) Familiarity with Agile/Scrum ways of working Comfortable using AI-assisted development tools (e.g., Copilot, Cursor or equivalent) Nice to have: Experience with BDD frameworks (e.g., Cucumber) Knowledge of performance or load testing tools Experience with observability and quality metrics practices Experience working on large-scale, distributed systems We offer: Participation in interesting and demanding projects. Flexible working hours. A great, non-corporate atmosphere. Possibility to work remote or hybrid (2 days per week from the office). Opportunities for development and promotion. Attractive package of benefits.