Vasyl Domanchuk - Backend Team Lead (Golang) at Data.bet

Vasyl Domanchuk

Backend Team Lead (Golang) at Data.bet

Kyiv, Ukraine

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Summary

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Senior

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Top School

Vasyl Domanchuk is a Backend Team Lead and versatile software engineer with a decade of industry experience and seven years in professional backend roles, specializing in Golang, distributed high-load systems, and cloud-native architectures. He leads teams at Data.bet, bringing hands-on expertise in PostgreSQL, MongoDB, Redis, RabbitMQ, Docker, Kubernetes and CI/CD to deliver scalable, high-availability platforms. Vasyl has significant GraphQL experience—including implementing federation—and contributes to the open-source graphql-go-tools project, improving AST parsing and federation correctness. His background spans full-stack beginnings in JavaScript/React to production Go microservices, giving him a pragmatic appreciation for both developer experience and operational robustness. Based in Kyiv, he pairs systems-level thinking with a track record of refactoring core logic and adding rigorous unit tests to critical backend tooling.

10 years of coding experience

10 years of employment as a software developer

Igor Sikorsky Kyiv Polytechnic Institute

Русский, Украинский, Английский

Stackoverflow

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Github Skills (11)

unit-testing10

graphql10

go10

wordpress-graphql10

wpgraphql10

federation9

validations9

validation9

parserator9

parser9

backend8

Programming languages (1)

Github contributions (5)

wundergraph/graphql-go-tools

Mar 2021 - Nov 2021

GraphQL Router / API Gateway framework written in Golang, focussing on correctness, extensibility, and high-performance. Supports Federation v1 & v2, Subscriptions & more.

Role in this project:

Back-end Developer

Contributions:72 commits, 18 PRs, 27 comments in 7 months

Contributions summary:Vasyl's commits focus on enhancing the `graphql-go-tools` project, primarily by adding and refactoring code related to federation features. Contributions include adding utility functions for deleting field definitions by directive and implementing unit tests for the node extractor. The refactoring efforts involved improvements to the node extractor's core logic, demonstrating a focus on backend functionality and the project's internal AST (Abstract Syntax Tree) parsing and transformation processes. The user's work suggests a contribution to the project's parsing, validation, and federation capabilities.

linterast-transformationintrospection-queryastparser

chedom/gqlgen

Dec 2021 - Mar 2024

go generate based graphql server library

Contributions:1 PR, 9 pushes, 3 branches in 2 years 3 months

golanggo-generategraphql-servergraphqlserver-library

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