Kostiantyn Teltov
QA Lead Team Lead QA Architect Guild Master (QA Guild) at Metso
Krakow, Lesser Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolKostiantyn Teltov is a seasoned QA and automation leader with 17+ years in quality assurance and over a decade focused on technical test engineering and SDET practices. Based in Krakow, he has led QA architecture, built test automation frameworks for Web, REST and gRPC, and driven shift-left testing and release quality gates across microservices at Metso. He pairs hands-on coding (C#, JS/TS, Java, Python, Unity3D) with team leadership—founding and running a local QA Guild to spread best practices and mentor engineers. Known for designing CI/CD pipelines, dashboards and PoCs (including React component testing) he bridges product, development and QA to reduce risk and speed delivery. His open-source work on Sitecore's Habitat shows a pragmatic mix of frontend feature development and SpecFlow-driven acceptance tests, reflecting his focus on testable design. Colleagues rely on him for clear test strategies, tooling choices, and practical training that turns manual testers into productive automation contributors.
10 years of coding experience
8 years of employment as a software developer
Младший специалист Коммерческая деятельность, Младший специалист Коммерческая деятельность at ДТрЭКBachelor's degree Business/Managerial Economics, Bachelor's degree Business/Managerial Economics at Prydniprovska State Academy of Civil Engineering and Architecture
english(upper intermediate), russian(native), ukrainian(native), Polish
Github Skills (7)
csharp10
specflow10
dotnet-core10
test-automation10
front-end-development9
unit-testing8
unit-test8
Programming languages (7)
Github contributions (5)
Sitecore/Habitat
Dec 2015 - Jul 2016
Sitecore Modular Architecture Example
Role in this project:
Frontend Developer & Test Automation Engineer
Frontend Developer & Test Automation EngineerContributions:78 commits, 91 pushes, 3 branches in 6 months
Contributions summary:Kostiantyn designed and implemented a feature template for a Person_Employee List. This involved creating the initial template and then authoring SpecFlow tests using C# to define scenarios for the feature, covering use cases related to default and custom data sources. Furthermore, the user updated project and feature files, including the addition of supporting project and feature files, to implement and integrate the feature tests into the project. The work clearly focuses on both frontend development and quality assurance.
dockermodularmodular-architecturetypescriptarchitecture
dneprokos/node-rest-services
Oct 2019 - Jan 2024
Just a simple test project with RESTful services build with node
Contributions:36 PRs, 42 pushes, 21 branches in 4 years 3 months
test-projecttestingrestfulsimple-testnodejs
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