Sergey Kudasov
Lead QA Engineer Golang Developer at Chainlink Labs
Belgrade, Central Serbia
Summary
🤩
Rockstar🎓
Top SchoolSergey Kudasov is a Lead QA Engineer and Golang developer with 10+ years building resilient testing infrastructure and backend services for blockchain and high-load systems. Based in Belgrade, he redesigned Chainlink’s testing strategy, created CI-friendly chaos/load frameworks and ephemeral k8s deployments, and contributed to the well-known Chainlink repo by hardening VRFv2 smoke tests and stabilizing integration suites. He has a track record of shipping cloud-native test harnesses and metrics pipelines (Prometheus/Loki/Grafana) and has developed client libraries for Terra and Solana to enable parallel, production-like testing. Earlier roles span jepsen-style blockchain testing, load/test reporting, and automation of large BDD suites, combining deep QA discipline with hands-on Go and Python engineering. Notably, he blends low-level test tooling (from Jepsen-style harnesses to Kubernetes CDK) with pragmatic developer ergonomics to make complex distributed tests fast, observable, and repeatable.
10 years of coding experience
11 years of employment as a software developer
Master's degree, Computer Programming, Specific Applications, Master's degree, Computer Programming, Specific Applications at Moscow Aviation Institute (National Research University)
Github Skills (6)
dependency-management10
go10
testing10
blockchain9
golang9
chainlink8
Programming languages (8)
Github contributions (5)
smartcontractkit/chainlink
Feb 2022 - Jan 2023
node of the decentralized oracle network, bridging on and off-chain computation
Role in this project:
Back-end Developer
Back-end DeveloperContributions:464 reviews, 38 commits, 220 PRs in 11 months
Contributions summary:Sergey's contributions primarily involved modifying the project's `go.mod` file to downgrade `ginkgo` and incorporate several dependencies, indicating a focus on dependency management and potentially refactoring of testing frameworks. The user also implemented and tested a smoke test for VRFv2 functionality by integrating a smoke test specifically targeting the VRFv2 integration tests and resolving flakes. Further contributions include refactoring of tests for the runlog job.
golangcomputationethereumblockchaindecentralized
smartcontractkit/havoc
Jan 2024 - Sep 2024
Automatic chaos testing tool and CLI
Contributions:6 releases, 12 reviews, 10 PRs in 7 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.