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marios makedon

@mariosmakedon

Automation QA Engineer at Aylo who built two test automation frameworks and an AI agent that turns user stories into executed scenarios.

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At Aylo, I own two automation frameworks: a Katalon Studio framework and a separate Python (pytest) repository. They run more than 1,000 automated test sessions daily across three web platforms and 10 device configurations.

I integrated both suites into Jenkins pipelines as deployment quality gates and built an API test automation suite with Katalon and Postman, cutting API regression from several hours of manual testing to a few minutes. I also engineered an AI-powered testing agent that parses business user stories and executes matching test scenarios.

Earlier, I built and maintained automated test suites at INTRALOT S.A. and wrote Python and .NET system-check scripts at NTT Ltd. I hold an M.Sc. in Artificial Intelligence from KU Leuven and an M.Eng. in Electrical & Computer Engineering from NTUA.

Experience

Work history, roles, and key accomplishments

Current

Automation QA Engineer

Current

Aylo

Jan 2023 - Present (3 years 9 months)

Sole owner of Katalon Studio and Python (pytest) automation frameworks, integrated into Jenkins CI/CD pipelines, running 1,000+ automated test sessions daily. Engineered an AI-powered testing agent and automated API regression, reducing manual testing effort.

Katalon Studio Groovy JavaScript Python Pytest Jenkins API Testing Postman CI CD Testing Automation AI Agent Development LLM Integrations Confluence Jira TestRail

Software QA Engineer

Aylo

Mar 2022 - Dec 2023 (1 year 9 months)

Designed, executed, and maintained regression, smoke, exploratory, and integration test cases across the SDLC. Developed automated scripts using Katalon Studio, Python (pytest), and Selenium WebDriver, and managed defect lifecycle in Jira and TestRail.

Katalon Studio Groovy Python Pytest Selenium Webdriver API Testing Postman Jira TestRail Agile Scrum

Service Operations Engineer

NTT Ltd.

Oct 2020 - Mar 2022 (1 year 5 months)

Monitored and maintained enterprise systems and networks, delivering multiple Azure AD migration projects end to end. Wrote automated system-check scripts in Python and .NET.

Azure AD Python .NET System Monitoring Network Administration

Private Tutor

Self-employed

Sep 2014 - Jun 2021 (6 years 9 months)

Taught mathematics and physics to high-school students.

Teaching Mathematics Physics

Quality Assurance Engineer

Intralot S.A.

Oct 2019 - Sep 2020 (11 months)

Built and maintained automated suites covering functional, regression, integration, and E2E scenarios. Designed test automation frameworks from scratch, focusing on scalability and maintainability, and coordinated test strategy with client stakeholders.

Testing Automation Functional Testing Regression Testing Integration Testing E2E Testing Test Strategy Defect Management

Security Administrator & Computer Engineer

Hellenic Air Force

Sep 2018 - Sep 2019 (1 year)

Led daily operations for a 24-person unit, developed and maintained the HAF website, and provided network IT support.

Network Support IT Support Web Development

Embedded Software Engineer (Internship)

Metis Cyberspace Technology

Feb 2018 - Aug 2018 (6 months)

Developed a remote, automated OS-update system for embedded devices using the Yocto Project. Collaborated with ERMAFIRST S.A. on a real-time control system for ships.

Embedded Systems Yocto Linux Real Time Systems

Core Member

IEEE Student Branch, NTUA

Sep 2014 - Aug 2018 (3 years 11 months)

Organised hackathons, workshops, and scientific events, and promoted ECE NTUA in schools across Athens.

Event Organization Outreach

Education

Degrees, certifications, and relevant coursework

KU Leuven

M.Sc., Artificial Intelligence

2020 - 2023

M.Sc. in Artificial Intelligence with a focus on Speech & Language Technology. Thesis on automatic poetry generation in Ancient Greek.

National Technical University of Athens

M.Eng., Electrical & Computer Engineering

2017 - 2019

Grade: 7.6/10

M.Eng. in Electrical & Computer Engineering. Thesis on an interactive guided-tour system for archaeological sites using Bluetooth 5.0, including PCB design and Android app development.

National Technical University of Athens

B.Sc., Electrical & Computer Engineering

2012 - 2017

B.Sc. in Electrical & Computer Engineering with direction in Electronics & Systems, including Electronics, Computer Systems, Networks & Telecommunications.