10/11/2025 updated

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Senior Test Automation Consultant | Mobile & Web & Backend | FinTech-Grade Quality Assurance

Katowice, Poland
Only remote
Bachelor of Engineering
Katowice, Poland
Only remote
Bachelor of Engineering

Profile attachments

Michal_Zajkowski_Resume.pdf

About me

7+ years building mobile test automation frameworks for enterprise clients like IG Group & ING Bank. Expert in Kotlin/Swift automation, CI/CD pipelines, and cross-platform testing strategies. Proven track record delivering quality solutions for financial services sector.

Java (Programming Language)Application Programming Interfaces (APIs)Agile MethodologyAtlassian JiraAutomationTest AutomationBug ManagementCode CoverageContinuous DeliveryContinuous IntegrationDevOpsGradleMobile Application SoftwareApache MavenScrum MethodologyQuality ManagementSeleniumStakeholder ManagementTesting StrategiesUser Interface TestingPostmanDelivery PipelineAppiumSpring BootBackendGitLabKotlinEcosystemsFintechSafety PrinciplesMultiplatformDockerJenkins
**Mobile Test Automation Ecosystem (Android & iOS)**
Extensive experience in creating and maintaining UI testing frameworks for native mobile applications. Fluent in both Android (Kotlin, Espresso) and iOS (Swift, XCUITest) ecosystems. Deep practical knowledge of multi-platform tools like Appium and Selenium to optimize testing processes and ensure comprehensive coverage.

**Backend & API Integrity**
Expertise in designing and implementing testing strategies for complex backend systems. Proven ability to build test frameworks in Java, leveraging tools such as RestAssured, Postman, and Spring Boot to rigorously validate API functionality, performance, and security.

**CI/CD & DevOps Pipeline Automation**
Practical skill in developing, maintaining, and optimizing CI/CD processes using Jenkins and GitLab. Experienced in seamlessly integrating automated tests into the delivery pipeline with tools like Docker, Gradle, and Maven to ensure Continuous Integration and Continuous Delivery.

**Quality Assurance Strategy & Agile Methodologies**
ISTQB certified professional with a strong ability to define QA strategies, standards, and best practices within Agile/Scrum teams. Proficient in using JIRA for defect management and working closely with business stakeholders to ensure alignment and comprehensive test coverage.

Experience

Professional experience5 - 10 years
Freelancer since2018

Languages

EnglishFluentPolishNative speaker

Project history

Senior Test Development Engineer

Sii Poland (for IG Group client)

Banking & Financial Services

Role: Lead engineer within the QA team for a global, high-frequency trading platform.

Key Achievements & Responsibilities:
- Architected and implemented a new UI testing framework from scratch for the flagship mobile trading app on both Android (Kotlin) and iOS (Swift).
- Led the automation effort for new backend functionalities, ensuring system stability and performance under load.
- Collaborated directly with business analysts and IT teams to translate complex financial requirements into comprehensive test coverage.
- Actively contributed to the global QA strategy, mentoring junior engineers and defining best practices for test automation.

Test Development Engineer

Sii Poland (for ING Bank Śląski S.A. client)

Banking & Financial Services

Role: Automation specialist responsible for the quality of a major retail banking application.

Key Achievements & Responsibilities:
- Developed and maintained automated testing scripts using Java, JavaScript, Selenide, and Selenium, reducing regression testing time by over 40%.
- Managed and optimized the CI/CD pipeline using Jenkins, ensuring reliable and frequent releases.
- Performed comprehensive functional, regression, and exploratory testing to validate new software features.
- Defined internal standards for test automation, significantly improving code quality and maintainability across the team.

Mobile Test Engineer

eSky Group
Role: Mobile QA engineer for the core eSky web and mobile (Android/iOS) travel applications.

Key Achievements & Responsibilities:
- Created and maintained automated test suites in Java/Kotlin with Appium/Selenium, increasing test coverage for mobile apps by 60%.
- Developed internal tools to improve the efficiency of both testers and developers.
- Analyzed business requirements to create detailed and effective test cases for a complex, multi-platform product.

Certificates

ISTQB Certified Tester Foundation Level

GASQ

2018


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