Test Automation Engineer with 10+ years of experience across UI, API, and data platform testing
Aktualisiert am 09.07.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 19.07.2026
Verfügbar zu: 100%
davon vor Ort: 100%
QA
Testautomatisierung
Software-Testing
Selenium
Python
JavaScript
rest
Cucumber
Jenkins
Testim
REST
GitLab
Git
Linux
Groovy
PostgreSQL
SQL
Polish
native
English
C1
German
B1

Einsatzorte

Einsatzorte

Münster, Westfalen (+10km)
Deutschland
möglich

Projekte

Projekte

9 Monate
2025-10 - heute

Development and maintenance of automated UI test scripts

Test Automation Engineer Tricentis Testim JavaScript PostgreSQL ...
Test Automation Engineer
  • Designed and maintained automated UI test scripts using Tricentis Testim, covering end-to-end user flows across a data-heavy agriscience platform.
  • Wrote custom JavaScript scripts to validate data-heavy UI tables and CSV exports against PostgreSQL database state, ensuring end-to-end data integrity.
  • Built API test suites with database-layer validation, querying PostgreSQL to verify data correctness across API responses and backend state.
  • Integrated all test suites into GitLab CI/CD pipelines for continuous testing on every deployment.
  • Validated Snowflake-backed data flows, including connection setup, query execution, and results verification.
  • Conducted requirement analysis and exploratory testing; delivered regular sprint demos to the product owner.
Tricentis Testim JavaScript PostgreSQL Snowflake REST APIs GitLab CI/CD JSON XML
Syngenta
Remote
3 Jahre
2022-05 - 2025-04

iOS app

QA Developer Jira REST APIs Postman ...
QA Developer
  • Developed comprehensive test strategy and test plan for an iOS app built with React Native.
  • Performed sprint testing including user stories, bug fixes, and regression testing for App Store releases.
  • Developed Grafana k6 scripts for API load testing, ensuring performance and scalability benchmarks were met.
  • Established a test management system in Jira as a central repository for documentation and progress tracking.
Jira REST APIs Postman Grafana k6 OpenAPI Mobile Testing (iOS / React Native)
Golden Camel
Remote
5 Monate
2022-04 - 2022-08

Implementation of automated cross-browser and cross-device tests

QA Automation Engineer TypeScript WebdriverIO BrowserStack ...
QA Automation Engineer
  • Implemented automated cross-browser, cross-device tests using WebdriverIO, TypeScript, and BrowserStack.
  • Collaborated with product managers and developers on sprint testing and feature validation.
  • Diagnosed and resolved broken automation scripts; managed defect lifecycle through to resolution.
TypeScript WebdriverIO BrowserStack Bamboo REST APIs Node.js Jira
Deckers Brands
Remote
5 Monate
2021-09 - 2022-01

CI-integrated framework for frontend automation

QA Engineer Jira Flutter API Testing ...
QA Engineer
  • Created test strategy, test plan, and QA documentation; built a CI-integrated front-end automation framework POC.
  • Built a customised QA dashboard in Jira and actively participated in defect triage sessions.
Jira Flutter API Testing Node.js QA Automation Test Planning
Repoze
Remote
1 Jahr 1 Monat
2020-09 - 2021-09

Development of automated UI tests

QA and Automation Engineer Groovy Geb Spock ...
QA and Automation Engineer
  • Built automated UI tests for PWA and Vue app using Groovy, Geb (WebDriver) and Spock.
  • Developed automated REST API tests using RestAssured and Groovy; conducted exploratory API testing with Postman.
  • Participated in QA technical architecture design and produced documentation on QA processes and tooling.
Groovy Geb Spock RestAssured MySQL Vue Postman Swagger Jira
PitchStone Technology
Remote
1 Jahr 9 Monate
2019-01 - 2020-09

Career Break

Self-directed learning
  • Relocated to Bangkok, Thailand; completed Thai language course.
  • Completed a full-stack web development bootcamp online, building projects in JavaScript, HTML, CSS, and Node.js.
  • Return to work delayed by the COVID-19 pandemic.
Bangkok (Thailand)
2 Jahre 3 Monate
2016-11 - 2019-01

Customer Data Platform

Quality Engineer Java Selenium WebDriver REST Assured ...
Quality Engineer
  • Built end-to-end UI tests using Selenium WebDriver and Java, optimised for parallel execution in Jenkins pipelines.
  • Tested REST APIs extensively using REST Assured, Java, and Cucumber across a data platform built on AWS, Spark, and Cassandra.
  • Validated batch ETL pipelines using golden file testing ? comparing expected vs actual data outputs at each pipeline stage.
  • Verified streaming data persistence in Cassandra, ensuring correctness of event-driven data flows end-to-end.
  • Worked directly with data engineers on a platform processing millions of customer events daily.
Java Selenium WebDriver REST Assured Cucumber AWS Spark Cassandra Jenkins
Boxever
Dublin (Ireland)
1 Jahr 4 Monate
2015-08 - 2016-11

Development of a test framework for REST APIs

Automation Test Engineer Java Retrofit Jackson ...
Automation Test Engineer
  • Built a REST API testing framework using Retrofit, Jackson, and TestNG; migrated regression suite from JMeter.
  • Tracked and logged defects in Jira; collaborated with developers to ensure timely resolution.
Java Retrofit Jackson TestNG JMeter Jira
Hostelworld.com
Dublin (Ireland)
7 Monate
2015-01 - 2015-07

Automated Web and Mobile Web Tests

Software Test Automation Engineer
Software Test Automation Engineer
Automated web and mobile web tests with Selenium WebDriver; converted manual test cases into automated regression suites.
EPAM Systems
Poland
1 Jahr
2014-01 - 2014-12

Creation and execution of functional test cases

Associate Quality Engineer
Associate Quality Engineer
  • Wrote and executed functional test cases
  • configured testing environments using BASH scripts
Misys
Poland
1 Jahr 6 Monate
2012-07 - 2013-12

System, functional, black-box, UAT, and regression tests

Junior Test Engineer
Junior Test Engineer
  • Performed system, functional, black-box, UAT, and regression testing
  • analysed requirements and formulated test plans
Lufthansa Systems
Poland

Aus- und Weiterbildung

Aus- und Weiterbildung

2026 ? today (part-time, in progress)
MSc Computing (Data Science)
Atlantic Technological University (ATU Sligo)

Higher Diploma in Science, Software Development
Atlantic Technological University (ATU)

Bachelor's Degree in Economics
University of Applied Sciences in Elblag

Certifications
  • AWS Certified Cloud Practitioner
  • PCAP? ? Certified Associate Python Programmer (Python Institute)
  • Certified Tester Foundation Level ? ISTQB
  • Oracle Certified Associate, Java SE 8 Programmer

Position

Position

Senior QA Automation Engineer - Data Platform Testing

Kompetenzen

Kompetenzen

Top-Skills

QA Testautomatisierung Software-Testing Selenium Python JavaScript rest Cucumber Jenkins Testim REST GitLab Git Linux Groovy PostgreSQL SQL

Produkte / Standards / Erfahrungen / Methoden

Profile
Test Automation Engineer with 10+ years of experience across UI, API, and data platform testing. Specialised in validating ETL pipelines, streaming data, and data integrity across relational and NoSQL databases. Proven ability to build automation frameworks from scratch and integrate them into CI/CD pipelines. Currently completing an MSc in Data Science (ATU), with hands-on project experience in Python-based ETL pipelines, Airflow orchestration, and statistical analysis ? actively transitioning toward data engineering roles.

Skills
  • Test Automation
    • WebdriverIO
    • Selenium WebDriver
    • Tricentis Testim
    • RestAssured
    • Postman
    • Geb
    • Cucumber
    • JUnit
    • TestNG
    • Grafana k6
  • Data & Cloud
    • Snowflake
    • AWS
    • Apache Spark
    • Cassandra
    • PostgreSQL
    • MySQL
    • ETL Testing
    • Golden File Testing
    • Data Integrity Validation
  • Data Engineering (Projects)
    • Python
    • Pandas
    • Airflow
    • BeautifulSoup
    • VADER
    • Scikit-learn
    • Matplotlib
  • CI/CD & Version Control
    • Jenkins
    • GitHub Actions
    • GitLab CI/CD
    • Git
  • Methodologies
    • Agile
    • Scrum
    • BDD
    • Black Box Testing
    • Regression Testing
    • UAT
    • ETL Pipeline Testing
    • Streaming Data Validation
  • Tools
    • Jira
    • Swagger/ OpenAPI
    • BrowserStack

Programmiersprachen

Java
Bash
Python
TypeScript
JavaScript

Einsatzorte

Einsatzorte

Münster, Westfalen (+10km)
Deutschland
möglich

Projekte

Projekte

9 Monate
2025-10 - heute

Development and maintenance of automated UI test scripts

Test Automation Engineer Tricentis Testim JavaScript PostgreSQL ...
Test Automation Engineer
  • Designed and maintained automated UI test scripts using Tricentis Testim, covering end-to-end user flows across a data-heavy agriscience platform.
  • Wrote custom JavaScript scripts to validate data-heavy UI tables and CSV exports against PostgreSQL database state, ensuring end-to-end data integrity.
  • Built API test suites with database-layer validation, querying PostgreSQL to verify data correctness across API responses and backend state.
  • Integrated all test suites into GitLab CI/CD pipelines for continuous testing on every deployment.
  • Validated Snowflake-backed data flows, including connection setup, query execution, and results verification.
  • Conducted requirement analysis and exploratory testing; delivered regular sprint demos to the product owner.
Tricentis Testim JavaScript PostgreSQL Snowflake REST APIs GitLab CI/CD JSON XML
Syngenta
Remote
3 Jahre
2022-05 - 2025-04

iOS app

QA Developer Jira REST APIs Postman ...
QA Developer
  • Developed comprehensive test strategy and test plan for an iOS app built with React Native.
  • Performed sprint testing including user stories, bug fixes, and regression testing for App Store releases.
  • Developed Grafana k6 scripts for API load testing, ensuring performance and scalability benchmarks were met.
  • Established a test management system in Jira as a central repository for documentation and progress tracking.
Jira REST APIs Postman Grafana k6 OpenAPI Mobile Testing (iOS / React Native)
Golden Camel
Remote
5 Monate
2022-04 - 2022-08

Implementation of automated cross-browser and cross-device tests

QA Automation Engineer TypeScript WebdriverIO BrowserStack ...
QA Automation Engineer
  • Implemented automated cross-browser, cross-device tests using WebdriverIO, TypeScript, and BrowserStack.
  • Collaborated with product managers and developers on sprint testing and feature validation.
  • Diagnosed and resolved broken automation scripts; managed defect lifecycle through to resolution.
TypeScript WebdriverIO BrowserStack Bamboo REST APIs Node.js Jira
Deckers Brands
Remote
5 Monate
2021-09 - 2022-01

CI-integrated framework for frontend automation

QA Engineer Jira Flutter API Testing ...
QA Engineer
  • Created test strategy, test plan, and QA documentation; built a CI-integrated front-end automation framework POC.
  • Built a customised QA dashboard in Jira and actively participated in defect triage sessions.
Jira Flutter API Testing Node.js QA Automation Test Planning
Repoze
Remote
1 Jahr 1 Monat
2020-09 - 2021-09

Development of automated UI tests

QA and Automation Engineer Groovy Geb Spock ...
QA and Automation Engineer
  • Built automated UI tests for PWA and Vue app using Groovy, Geb (WebDriver) and Spock.
  • Developed automated REST API tests using RestAssured and Groovy; conducted exploratory API testing with Postman.
  • Participated in QA technical architecture design and produced documentation on QA processes and tooling.
Groovy Geb Spock RestAssured MySQL Vue Postman Swagger Jira
PitchStone Technology
Remote
1 Jahr 9 Monate
2019-01 - 2020-09

Career Break

Self-directed learning
  • Relocated to Bangkok, Thailand; completed Thai language course.
  • Completed a full-stack web development bootcamp online, building projects in JavaScript, HTML, CSS, and Node.js.
  • Return to work delayed by the COVID-19 pandemic.
Bangkok (Thailand)
2 Jahre 3 Monate
2016-11 - 2019-01

Customer Data Platform

Quality Engineer Java Selenium WebDriver REST Assured ...
Quality Engineer
  • Built end-to-end UI tests using Selenium WebDriver and Java, optimised for parallel execution in Jenkins pipelines.
  • Tested REST APIs extensively using REST Assured, Java, and Cucumber across a data platform built on AWS, Spark, and Cassandra.
  • Validated batch ETL pipelines using golden file testing ? comparing expected vs actual data outputs at each pipeline stage.
  • Verified streaming data persistence in Cassandra, ensuring correctness of event-driven data flows end-to-end.
  • Worked directly with data engineers on a platform processing millions of customer events daily.
Java Selenium WebDriver REST Assured Cucumber AWS Spark Cassandra Jenkins
Boxever
Dublin (Ireland)
1 Jahr 4 Monate
2015-08 - 2016-11

Development of a test framework for REST APIs

Automation Test Engineer Java Retrofit Jackson ...
Automation Test Engineer
  • Built a REST API testing framework using Retrofit, Jackson, and TestNG; migrated regression suite from JMeter.
  • Tracked and logged defects in Jira; collaborated with developers to ensure timely resolution.
Java Retrofit Jackson TestNG JMeter Jira
Hostelworld.com
Dublin (Ireland)
7 Monate
2015-01 - 2015-07

Automated Web and Mobile Web Tests

Software Test Automation Engineer
Software Test Automation Engineer
Automated web and mobile web tests with Selenium WebDriver; converted manual test cases into automated regression suites.
EPAM Systems
Poland
1 Jahr
2014-01 - 2014-12

Creation and execution of functional test cases

Associate Quality Engineer
Associate Quality Engineer
  • Wrote and executed functional test cases
  • configured testing environments using BASH scripts
Misys
Poland
1 Jahr 6 Monate
2012-07 - 2013-12

System, functional, black-box, UAT, and regression tests

Junior Test Engineer
Junior Test Engineer
  • Performed system, functional, black-box, UAT, and regression testing
  • analysed requirements and formulated test plans
Lufthansa Systems
Poland

Aus- und Weiterbildung

Aus- und Weiterbildung

2026 ? today (part-time, in progress)
MSc Computing (Data Science)
Atlantic Technological University (ATU Sligo)

Higher Diploma in Science, Software Development
Atlantic Technological University (ATU)

Bachelor's Degree in Economics
University of Applied Sciences in Elblag

Certifications
  • AWS Certified Cloud Practitioner
  • PCAP? ? Certified Associate Python Programmer (Python Institute)
  • Certified Tester Foundation Level ? ISTQB
  • Oracle Certified Associate, Java SE 8 Programmer

Position

Position

Senior QA Automation Engineer - Data Platform Testing

Kompetenzen

Kompetenzen

Top-Skills

QA Testautomatisierung Software-Testing Selenium Python JavaScript rest Cucumber Jenkins Testim REST GitLab Git Linux Groovy PostgreSQL SQL

Produkte / Standards / Erfahrungen / Methoden

Profile
Test Automation Engineer with 10+ years of experience across UI, API, and data platform testing. Specialised in validating ETL pipelines, streaming data, and data integrity across relational and NoSQL databases. Proven ability to build automation frameworks from scratch and integrate them into CI/CD pipelines. Currently completing an MSc in Data Science (ATU), with hands-on project experience in Python-based ETL pipelines, Airflow orchestration, and statistical analysis ? actively transitioning toward data engineering roles.

Skills
  • Test Automation
    • WebdriverIO
    • Selenium WebDriver
    • Tricentis Testim
    • RestAssured
    • Postman
    • Geb
    • Cucumber
    • JUnit
    • TestNG
    • Grafana k6
  • Data & Cloud
    • Snowflake
    • AWS
    • Apache Spark
    • Cassandra
    • PostgreSQL
    • MySQL
    • ETL Testing
    • Golden File Testing
    • Data Integrity Validation
  • Data Engineering (Projects)
    • Python
    • Pandas
    • Airflow
    • BeautifulSoup
    • VADER
    • Scikit-learn
    • Matplotlib
  • CI/CD & Version Control
    • Jenkins
    • GitHub Actions
    • GitLab CI/CD
    • Git
  • Methodologies
    • Agile
    • Scrum
    • BDD
    • Black Box Testing
    • Regression Testing
    • UAT
    • ETL Pipeline Testing
    • Streaming Data Validation
  • Tools
    • Jira
    • Swagger/ OpenAPI
    • BrowserStack

Programmiersprachen

Java
Bash
Python
TypeScript
JavaScript

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