Wojciech Zięba, Developer in Kraków, Poland
Wojciech is available for hire
Hire Wojciech

Wojciech Zięba

Verified Expert  in Engineering

Quality Assurance Specialist and Developer

Kraków, Poland
Toptal Member Since
August 23, 2022

Wojciech is a QA engineer with 8+ years of experience overseeing the entire QA process, including automation, API, and performance testing. He is skilled in CI/CD pipeline development and monitoring with Grafana. Wojciech has a proven ability to seamlessly blend QA and DevOps responsibilities, ensuring software quality from development to deployment.


K6, JavaScript, Go, Grafana, Docker, GitHub, Blockchain
Azure DevOps, CI/CD Pipelines, REST API Automation, Regression Testing...
C#, SpecFlow, Docker, API Testing, Postman, TeamCity, Jenkins...




Preferred Environment


The most amazing...

...solution I've developed is a market maker bot that supplies liquidity on a decentralized exchange, earning about $200 per day in its best time.

Work Experience

QA/DevOps Engineer

2023 - PRESENT
  • Led quality assurance for Starknet node implementation.
  • Established automated testing processes and developed tests.
  • Implemented performance tests using the K6 tool and set up and managed Grafana cloud monitoring.
  • Developed and maintained pipelines for Docker image/binaries building and deployment with post-deployment E2E tests.
  • Managed, set up testing environments, and oversaw software release processes.
Technologies: K6, JavaScript, Go, Grafana, Docker, GitHub, Blockchain

QA Engineer

2022 - PRESENT
  • Defined and set CI/CD pipelines using the Azure DevOps tool.
  • Created automation regression tests for the UI and API.
  • Tested new features in cooperation with the business and developers.
Technologies: Azure DevOps, CI/CD Pipelines, REST API Automation, Regression Testing, Automated UI Testing, C#

Senior QA Engineer

2018 - 2022
  • Developed distributed load tests using the Gatling tool.
  • Monitored system components over load tests to find out the bottlenecks.
  • Created system tests for phone number verification system using C#, SpecFlow, and Docker.
  • Prepared collections for API tests using the Postman tool.
  • Included system and performance tests into CI/CD pipelines.
Technologies: C#, SpecFlow, Docker, API Testing, Postman, TeamCity, Jenkins, Distributed Load Testing, CI/CD Pipelines, Amazon Web Services (AWS), Gatling Load Testing, Testing, Test Automation

Test Automation Developer

2016 - 2018
Grupa Pracuj
  • Designed test scenarios for a salary calculator system.
  • Developed UI automation tests for the salary calculator system using C# and the Selenium framework.
  • Performed load tests in the salary calculator system using the JMeter tool.
  • Developed mobile automation tests for a job offers application using C# and the Appium framework.
Technologies: C#, Selenium, Appium, Apache JMeter, CI/CD Pipelines, Manual Software Testing, API Testing, Testing, Test Automation

Software Tester Intern

2014 - 2016
  • Created test scenarios for the customer complaint system.
  • Developed UI automation tests using C# and the Selenium framework.
  • Tested new features for the customer complaint system.
Technologies: Test Scenarios, Selenium, FitNesse, Unit Testing, CI/CD Pipelines, Manual Software Testing, Testing, Test Automation

Platform for Phone Number Verification

A .NET-based platform for phone number verification used by huge customers like Uber or Tinder, which required it to be scalable and reliable.

I was the quality assurance engineer overseeing the quality process, automation system, and performance tests. To ensure its scalability and reliability, I performed distributed load tests from many regions with about 5,000 requests per second.
2012 - 2016

Bachelor's Degree in Computer Science

AGH University of Science and Technology - Cracow, Poland


Certified Tester Foundation Level



Gatling Load Testing, FitNesse, Apache JMeter, Postman, TeamCity, Jenkins, Grafana, GitHub


C#, JavaScript, Go


Testing, Test Automation, Unit Testing, Azure DevOps


Selenium, SpecFlow, Appium, .NET


Amazon Web Services (AWS), Docker, Windows, Blockchain


QA Automation, Manual Software Testing, Test Scenarios, API Testing, CI/CD Pipelines, Distributed Load Testing, Automated UI Testing, REST API Automation, Performance Testing, Regression Testing, K6

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.


Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring