Łukasz Zieliński
Software Engineer In Test at Ocado Technology
Krakow, Lesser Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolŁukasz Zieliński is a Software Engineer in Test with 15 years of experience building and leading QA teams in Agile environments, currently driving test engineering at Ocado Technology from Krakow. He pairs deep telecom and network knowledge (LTE, CDMA, Windows/Linux/BSD environments) with strong automation skills—Selenium, JMeter, Capybara—in both Java and C# stacks. As a former QA Lead and Scrum Master at Luxoft and a hands-on contributor to the open-source mqtt-jmeter JMeter plugin, he has improved protocol support and client implementations, demonstrating solid back-end and tooling expertise. He frequently bridges lab-style network testing and production-grade automation, having overseen monitoring solutions deployments and technical customer engagements. Trained in telecommunications (AGH, Universidad Politécnica de Madrid) and web security, he brings a pragmatic mix of systems-level thinking and test automation craftsmanship. Colleagues rely on him for turning complex integration challenges into reliable, maintainable test suites and tooling.
15 years of coding experience
10 years of employment as a software developer
Attacking and Securing Web Applications, Attacking and Securing Web Applications at niebezpiecznik.plAGH UniversityTelecommunication, Telecommunication at Universidad Politécnica de Madrid
English, Spanish
Github Skills (6)
mqtt10
javas10
jmeter10
java10
mqttnet10
front-end-development8
Programming languages (6)
Github contributions (5)
emqx/mqtt-jmeter
Nov 2019 - Nov 2019
MQTT JMeter Plugin
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 commits, 1 PR, 2 comments in 9 days
Contributions summary:Łukasz significantly contributed to the `mqtt-jmeter` plugin by implementing multiple MQTT client implementations, including HiveMQ and FuseSource. They refactored and modified core sampler logic, particularly within the `EfficientConnectSampler`, to accommodate different client types. The user also added features for client selection, protocol support, and improved subscription handling, enhancing the plugin's flexibility and functionality. These changes involved substantial modifications to the GUI and core logic of the plugin, demonstrating a strong understanding of the JMeter framework.
mqtt-benchmarkjmetermqttjmeter-pluginmqtt-client
zielu/CVSRevisionGraphPluginPlus
Sep 2011 - Aug 2013
Contributions:14 commits in 1 year 10 months
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