Open to opportunities

Stefan Kajcevski

@stefankajcevski

Message

I build reliable web and mobile release quality through hands-on testing, automation, and precise bug localization.

North Macedonia

Message

What I'm looking for

I'm looking to own release quality across web, mobile, and API-driven products, combining practical automation, precise defect triage, current test coverage, and calm collaboration with development teams.

I've spent 18 years testing web, mobile, connected-device, and API-driven products, with release quality and clear bug localization at the center of my work.

At Modirum Platforms, I own QA delivery across regression, exploratory testing, REST API validation, and release coordination. I use Postman and Playwright for release-critical coverage, support SpecFlow maintenance and Playwright migration work, and mentor team members while keeping test documentation current.

Across Deltatre, ScaleFocus, Countly, Airfind, Gecko ICT, Seavus, and Interworks, I've led defect triage, release validation, automation, and QA process maturity for streaming, SaaS, enterprise, and mobile products. I'm also building Release Signal, an AI-assisted QA governance and release-risk platform.

Experience

Work history, roles, and key accomplishments

Current

Founder / Product Builder

Current

Release Signal

Jan 2025 - Present (1 year 8 months)

Building an AI-assisted QA governance and release-risk platform focused on requirement quality, test design, review intelligence, execution evidence, and release readiness.

Next.js TypeScript Prisma PostgreSQL Auth0 Redis AI Quality Governance Release Risk

Current

QA Lead

Current

Modirum Platforms

Aug 2024 - Present (2 years 1 month)

Own QA delivery across regression, exploratory testing, REST API validation, and release coordination. Use Postman for API validation and Playwright for smoke and sanity coverage of release-critical workflows.

Postman Playwright C#SpecFlow GitHub Actions REST APIs Regression Testing Exploratory testing Release Coordination Mentorship

Senior QA Engineer

Deltatre

Mar 2024 - Aug 2024 (5 months)

Tested Android, iOS, Apple TV, and Android TV apps in a fast-moving release environment. Owned defect triage, release validation, regression coverage, and scenario design from user stories.

Android iOS Apple TV Android TV Selenium Webdriver Defect Triage Release Validation Regression Testing

Senior Automation QA Engineer

ScaleFocus

Nov 2022 - Mar 2024 (1 year 4 months)

Planned and executed mobile test coverage, defect triage, and release validation in Agile Scrum teams. Worked with an Appium Page Object Model framework using Java, Maven, and TestNG.

Appium Page Object Model Java Maven TestNG Agile Scrum Mobile Testing Defect Triage Release Validation

Senior QA Consultant / Stand-in QA Lead

Deltatre

Aug 2022 - Sep 2023 (1 year 1 month)

Provided senior QA consultancy and interim leadership for connected TV and mobile products. Drove feature validation, change-request testing, defect triage, and structured scenario coverage.

Connected TV Mobile Testing Feature Validation Change Request Testing Defect Triage Scenario Design Leadership

Senior QA Engineer

IT Labs

Sep 2021 - Jan 2023 (1 year 4 months)

Tested web applications, maintained test assets, and automated scenarios with Selenium WebDriver. Worked with Agile teams on defect validation, regression, and release readiness.

Selenium Webdriver Web Testing Testing and Maintenance Agile Defect Validation Regression Testing Release Readiness

Senior QA Engineer / QA Lead (Consultancy)

Countly

May 2019 - Mar 2022 (2 years 10 months)

Led QA for web applications: planning, execution, triage, release support, and stakeholder communication. Validated analytics-oriented behavior and complex customer-facing workflows.

Web Testing Test Planning Test Execution Defect Triage Release Support Stakeholder Communication Analytical Validation

Senior QA Automation Engineer

Airfind

Jan 2020 - Sep 2021 (1 year 8 months)

Built and maintained automation using Cucumber, Maven, Java, and Katalon. Owned smoke and regression execution, release sign-off, and Zephyr/Jira test management.

Cucumber Maven Java Katalon Smoke Testing Regression Testing Release Sign off Zephyr Jira

Senior QA Engineer

Gecko ICT

Dec 2018 - Jan 2020 (1 year 1 month)

Created test plans and maintained a Java-based Cucumber/TestNG automation framework. Mentored junior QA engineers and supported framework and process maturity.

Test Planning Java Cucumber TestNG Mentorship Code Maintenance Process Improvement

Senior QA Engineer

Airfind

Dec 2017 - Dec 2018 (1 year)

Defined QA procedures for Android apps and built Appium proof-of-concept coverage. Used adb logs and Fiddler for backend traffic analysis; mentored junior QA engineers.

Android Appium ADB Fiddler QA Processes Proof of Concept Mentorship

Intermediate QA Software Engineer

Seavus Dooel

Apr 2013 - Dec 2017 (4 years 8 months)

Functional, regression, smoke, and Selenium automation coverage across multiple web and mobile projects.

Functional Testing Regression Testing Smoke Testing Selenium Web Testing Mobile Testing

Software Testing Engineer

Interworks Dooel

Jun 2008 - Apr 2013 (4 years 10 months)

Analysed functional, business, and system requirements and created structured test cases. Executed manual and automation testing; validated CMS/XSLT-generated backend outputs.

Requirements Analysis Test Case Design Manual Testing Testing Automation CMS XSLT