Seva Zhidkov
Senior Software Engineer at Phantom
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolSeva Zhidkov is a senior software engineer and former founder with 11 years building high-throughput backend systems and product-led consumer experiences. He scaled live-trivia infrastructure to handle 1M peak RPS at VK and grew Clever App to 12M installs, then co-founded MATT and steered it to 200k users and $275k in funding. More recently he helped build security and transaction-simulation layers in Rust at Blowfish and contributed database and metrics improvements to prominent open-source projects like reth. Comfortable shipping across the stack—from distributed streaming and EKS-based infrastructure to gasless relayer logic for Solana—he blends hands-on engineering with product instincts gained from founding startups and leading cross-functional teams. Based in London, he pairs entrepreneurial grit with a focus on performance, reliability, and measurable user growth.
11 years of coding experience
8 years of employment as a software developer
High school dropout
Русский, Английский
Github Skills (38)
javascript10
python10
apidoc10
testing10
distributed-systems10
ruby10
api10
solana10
database-design10
ethereum10
angularjs10
blockchain10
html10
rust10
api-design9
Programming languages (14)
Github contributions (5)
anza-xyz/octane
Mar 2022 - Jan 2023
Octane is a gasless transaction relayer for Solana.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 reviews, 21 commits, 19 PRs in 10 months
Contributions summary:Seva primarily contributed to the back-end logic of the gasless transaction relayer. They added a core library to handle transaction logic, moving functions from Vercel to Next.js. The commits demonstrate the implementation of token fee validation and signing, as well as the creation of an API endpoint for handling token transfers. Moreover, the user worked on the implementation of gasless swap functionality via Whirlpools.
solanagaslessoctanerusttransaction
paradigmxyz/reth
Dec 2022 - Nov 2024
Modular, contributor-friendly and blazing-fast implementation of the Ethereum protocol, in Rust
Role in this project:Back-end Developer
Back-end DeveloperContributions:21 reviews, 9 PRs, 39 comments in 1 year 11 months
Contributions summary:Seva contributed to the `reth` repository, focusing on database and storage-related improvements. Their commits involved propagating error messages from `mdbx`, introducing environment-level caching for metrics, pre-populating metric handles, and fixing metrics-related issues. They also made enhancements to transaction handling and implemented changes to incorporate features like `--debug.etherscan` and best transactions trait for block composition.
contributor-friendlyblazingethereump2prust
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