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I am Serhii Lyskin, a Senior Software Engineer with 16 years of experience designing, developing, and delivering scalable software solutions across diverse industries. Over the last 6 years, I have specialized in blockchain development, focusing on smart contract engineering, decentralized application architecture, and secure Web3 integrations. I excel at building robust, production-ready blockchain solutions and leading engineering teams toward high-quality outcomes. I thrive on building robust blockchain systems using Solidity and Rust, mentoring teams, and driving technical strategy. I enjoy solving complex architectural challenges and applying strong security practices to DeFi, NFT, and DApp ecosystems while keeping pace with evolving L1/L2 ecosystems.…I am Serhii Lyskin, a Senior Software Engineer with 16 years of experience designing, developing, and delivering scalable software solutions across diverse industries. Over the last 6 years, I have specialized in blockchain development, focusing on smart contract engineering, decentralized application architecture, and secure Web3 integrations. I excel at building robust, production-ready blockchain solutions and leading engineering teams toward high-quality outcomes. I thrive on building robust blockchain systems using Solidity and Rust, mentoring teams, and driving technical strategy. I enjoy solving complex architectural challenges and applying strong security practices to DeFi, NFT, and DApp ecosystems while keeping pace with evolving L1/L2 ecosystems.

Serhii Lyskin

Blockchain Developer, Full Stack Developer, Web Developer, +2

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I am Serhii Lyskin, a Senior Software Engineer with 16 years of experience designing, developing, and delivering scalable software solutions across diverse industries. Over the last 6 years, I have specialized in blockchain development, focusing on smart contract engineering, decentralized application architecture, and secure Web3 integrations. I excel at building robust, production-ready blockchain solutions and leading engineering teams toward high-quality outcomes. I thrive on building robust blockchain systems using Solidity and Rust, mentoring teams, and driving technical strategy. I enjoy solving complex architectural challenges and applying strong security practices to DeFi, NFT, and DApp ecosystems while keeping pace with evolving L1/L2 ecosystems.…I am Serhii Lyskin, a Senior Software Engineer with 16 years of experience designing, developing, and delivering scalable software solutions across diverse industries. Over the last 6 years, I have specialized in blockchain development, focusing on smart contract engineering, decentralized application architecture, and secure Web3 integrations. I excel at building robust, production-ready blockchain solutions and leading engineering teams toward high-quality outcomes. I thrive on building robust blockchain systems using Solidity and Rust, mentoring teams, and driving technical strategy. I enjoy solving complex architectural challenges and applying strong security practices to DeFi, NFT, and DApp ecosystems while keeping pace with evolving L1/L2 ecosystems.

Available to hire

I am Serhii Lyskin, a Senior Software Engineer with 16 years of experience designing, developing, and delivering scalable software solutions across diverse industries. Over the last 6 years, I have specialized in blockchain development, focusing on smart contract engineering, decentralized application architecture, and secure Web3 integrations. I excel at building robust, production-ready blockchain solutions and leading engineering teams toward high-quality outcomes.

I thrive on building robust blockchain systems using Solidity and Rust, mentoring teams, and driving technical strategy. I enjoy solving complex architectural challenges and applying strong security practices to DeFi, NFT, and DApp ecosystems while keeping pace with evolving L1/L2 ecosystems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Smart Contract Auditor at ImmuneFi

September 1, 2024 - November 6, 2025

Security reviewer of smart contracts for Ethereum- and Solana-based DeFi projects. Found two medium-impact vulnerabilities in an Ethereum DeFi project and one low-impact and one high-impact vulnerability in a Solana-based DeFi project. Analyzed the source code of five DeFi projects across Ethereum, BSC, and Solana, and reviewed over 100 bug reports to identify common bugs and remediation patterns. Technologies involved included Solidity and Rust.

Audit Senior Blockchain Engineer at Sony Europe

August 1, 2024 - August 1, 2024

Developed smart contracts for a Fan-Driven DAO project; built TypeScript & Dart SDKs; developed multiple modules for a Double-Safe Crypto Wallet; implemented upgradeability patterns for NFT contracts; contributed to QA/testing and patent discussions.

Blockchain Engineer at DeFireX

June 1, 2022 - June 1, 2022

Developed and deployed smart contracts for a Safe Yield Farming Platform (based on Compound and Venus); created the DFX Token contract, staking, farming pool, and governance contracts; wrote test scripts; underwent security audit by Pessimistic Public; deployed on Binance Smart Chain and Ethereum.

Senior Rust Engineer at Blanc Labs

May 1, 2019 - May 1, 2019

Led design and development of performance-critical distributed systems in Rust, improving throughput by 30% through low-level optimizations and async concurrency. Architected secure protocols and privacy-preserving components using modern cryptographic primitives including Zero-Knowledge Proofs and MPC. Worked with cryptography crates (arkworks, bellman, curve25519-dalek, sha2/blake2) to build secure proofs and key-handling flows. Mentored team members, enhanced CI/CD with fuzz testing and static analysis for memory safety. Technologies included Rust, Tokio, Actix, gRPC, ZKP, Kubernetes, CI/CD.

Rust Engineer at Blanc Labs

February 1, 2015 - February 1, 2015

Developed backend systems and cryptographic modules in Rust, including hashing, digital signatures, and secure serialization. Contributed to Zero-Knowledge Proof research and prototyping, refactored low-level crypto utilities for safety and performance, built secure RPC APIs and async workflows, and improved reliability with automated testing. Collaborated with distributed systems engineers, cryptographers, and research teams to translate protocol specs into production-ready code.

C++ Engineer / Reverse Engineer at Table Tamer

January 1, 2013 - January 1, 2013

Analyzed game clients with tools like IDA Pro and Cheat Engine; developed a mechanism for DLL injection and pipe communication; intercepted game packets to extract data; performed code reviews and mentoring; built an application license system to deter cracking techniques.