Senior Blockchain Engineer with over 5 years of experience designing and implementing secure, scalable solutions for Layer-1 blockchains, cross-chain interoperability, and decentralized applications. Proficient in developing smart contracts, optimizing blockchain infrastructure, and conducting rigorous security audits to ensure robust and efficient systems. Skilled in leading multi-chain integrations and collaborating with cross-functional teams to deliver innovative solutions in DeFi, NFT, and real-world use cases. Recognized for driving performance improvements, enabling seamless developer onboarding, and ensuring compliance with best practices for decentralized ecosystems.
Experience: 6 years
Yearly salary: $12,000
Hourly rate: $65
Nationality: 🇷🇸 Serbia
Residency: 🇷🇸 Serbia
Experience
Senior Blockchain Engineer
Supra 2021 - 2024
Engineered critical components of Supra's Layer-1 blockchain, increasing transaction throughput by 50% and enhancing scalability through the implementation of advanced consensus algorithms that optimized node communication protocols across the network. Designed and deployed over 30 secure smart contracts utilizing Rust and Solidity, enabling seamless cross-chain integrations with Ethereum, Cosmos, and other blockchain ecosystems to enhance user transaction experiences. Implemented decentralized oracle solutions to provide reliable, real-time off-chain data to on-chain applications, improving data accuracy for over 200 decentralized projects. Optimized the performance of validator nodes, achieving a 20% improvement in transaction finality and enhancing network efficiency under high transaction loads. Conducted comprehensive security audits of Supra’s smart contracts and infrastructure using Slither and Mythril, proactively identifying vulnerabilities to prevent potential exploits. Built developer tools and SDKs to simplify integration with Supra’s blockchain, reducing onboarding times for new developers by 30%. Championed the launch of multi-chain testnets, facilitating collaboration among 10 blockchain engineers and improving the efficiency of dApp development processes, which ultimately led to the delivery of 3 major project milestones ahead of schedule. Drove efforts in implementing cutting-edge zk-Rollup technology through rigorous testing protocols, resulting in optimized smart contract performance measured at over 5 million successful transactions processed per week without compromising security standards.
Smart Contract Developer
Bloxico 2019 - 2021
Developed comprehensive smart contract solutions allowing seamless transition of traditional tickets to digital assets using the Ethereum blockchain; improved verification processes led to more than 1,000 secure transactions completed monthly. Engineered and deployed product authenticity verification smart contracts for Atala SCAN, integrating tamper-proof NFC chips with the Cardano blockchain; established secure provenance tracking that reduced counterfeit incidents by 75% within the first year. Built decentralized smart contracts for B-DER, facilitating peer-to-peer energy trading within microgrids, contributing to a 5% increase in energy efficiency for participants. Implemented permissionless staking and lending features for Savval, a DeFi liquidity protocol; enhanced secure financial operations resulting in over 3,000 unique user transactions within the first quarter post-launch. Performed regular testing and debugging of smart contracts using Remix and Truffle, reducing deployment errors by 15%. Designed and executed a user-facing blockchain feature that processed over 10,000 transactions in the first month; established a direct link between the decentralized backend and user interface, enhancing user engagement metrics.
Skills
blockchain
ethereum
golang
layer-2
python
rust
smart-contract
solana
solidity