Konstantin Burkalev
Principal Software Engineer at WALT
Kyiv, Ukraine
Summary
🤩
Rockstar🎓
Top SchoolKonstantin Burkalev is a Principal Software Engineer and architect with two decades of experience designing secure, multi-component systems and leading teams up to 25 people across startups and enterprise products. He specializes in IoT and automation platforms, having architected end-to-end encryption, custom WAMP-based ABAC, and key-exchange services while delivering cross-platform clients from cloud to embedded devices. Comfortable across Golang, PHP, JS, Python, C++ and more, he blends deep systems and database expertise (Oracle, PostgreSQL) with practical DevOps and CI/CD practices. He is an active contributor to the Cube project—improving its SQL engine and type coercion handling—and participates in WAMP protocol development and multiple SDK implementations. Known for turning chaotic processes into repeatable development workflows, he pairs hands-on coding with product-facing communication to align roadmaps, priorities, and releases. Based in Kyiv, he combines low-level embedded work (Yocto/Arduino) with large-scale cloud security design, a mix that few senior engineers sustain.
12 years of coding experience
11 years of employment as a software developer
Engineer's degree, Computer Technology/Computer Systems Technology, Engineer's degree, Computer Technology/Computer Systems Technology at Moscow Institute of Electronics and Mathematics (Technical University)
English, Russian
Stackoverflow
366reputation
14kreached
19answers
0questions
Github Skills (17)
fusion10
sql10
rust10
databases9
sql-database9
database9
relational-databases9
nginx6
lua6
asp-net6
php6
dom6
file-upload6
jquery6
tooltip6
Programming languages (19)
Github contributions (5)
cube-js/cube
May 2024 - Apr 2025
📊 Cube’s universal semantic layer platform is the next evolution of OLAP technology for AI, BI, spreadsheets, and embedded analytics
Role in this project:
Back-end Developer
Back-end DeveloperContributions:15 releases, 211 reviews, 337 PRs in 10 months
Contributions summary:Konstantin primarily focused on refactoring and improving the `cubesql-engine` component. Their work involved removing duplicate code, generalizing coercion functions, and supporting the `GREATEST`/`LEAST` SQL functions. They also implemented support for timestamp subtraction from a date within the SQL API and modified code related to UDFs within the `cubesql` component, specifically improving type coercion and the handling of null values.
cubeanalyticsdataathenachart
KSDaemon/wampy-cra
May 2016 - Jan 2023
Wampy Challenge Response Authentication plugin
Contributions:3 releases, 68 commits, 54 PRs in 6 years 9 months
authenticationplugin
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