solalex

Solana Dev

Β Computer Science candidate specializing in research and development within the blockchain ecosystem, with experience across Bitcoin, EVM, Solana, Aptos, and Sui. I have contributed to decentralized applications including NFTs, DeFi platforms, cross-chain swap products, trading bots, and Play-to-Earn systems. Currently, my work focuses on Web3 infrastructure, multi-chain swap experiences, trading automation, and AI-assisted blockchain tooling. I possess strong business communication skills in English and substantial experience working remotely with international teamsΒ 
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Experience: 8 years

Yearly salary: $116,000

Hourly rate: $60

Nationality: πŸ‡―πŸ‡΅ Japan

Residency: πŸ‡·πŸ‡Έ Serbia


Experience

Game Lead Dev
VKing Plays
2025 - 2026
● Online Casino Platform Development: Led development of an online casino platform, including game flows, backend services, payment-related integrations, and user-facing gaming experiences. ● Sports Betting API Integration: Integrated external sports betting APIs for real-time odds, live scores, marketupdates, and automated bet settlement workflows. ● High-Frequency Backend Systems: Built scalable backend components for high-frequency gaming and betting transactions, focusing on reliability, responsiveness, and operational performance.
Blockchain Lead
Whaleden
2024 - 2025
● Solana NFT Smart Contract Development: Developed Solana NFT smart contract features including minting, staking, marketplace flows, and token-related utilities. ● NFT Contract Review Support: Participated in review and audit support for NFT-focused smart contracts. ● Token and ICO Smart Contracts: Designed and deployed smart contracts for tokens and ICOs, including token vesting, staking, refund vaults, and multi-signature wallets.
Lead Solana Dev
ChainSwap
2022 - 2024
● Leadership in Solana Development for Cross-Chain Integration: Led Solana development for cross-chain and intra-chain swap functionality, including CCTP-related USDC transfer flows and Jupiter aggregator integration. ● Implementation of Chainlink CCIP for Multi-Chain DEX: Contributed to multi-chain DEX functionality using Chainlink CCIP concepts for secure cross-chain transactions. ● Multi-Chain Expansion and Intra-Chain Swap Support: Supported expansion across multiple blockchain networks, improving the user experience for same-chain and cross-chain swaps. ● Multi-Chain Swap Platform Development: Built and integrated Web3 features for a multi-chain digital asset swap platform focused on secure, private, non-custodial transactions. ● Swap and Bridge UX Integration: Worked on swap and bridge user flows, wallet integration, liquidity aggregation interfaces, and frontend/backend components supporting cross-chain UX. ● Privacy-Oriented DeFi Features: Collaborated on DeFi product features involving multi-chain flexibility, privacy-oriented transaction flows, and liquidity routing concepts.
Solana Web3 Dev
BlockSmith
2021 - 2022
● NFT Discovery and Community Products: Contributed to Web3 products addressing NFT discovery, curation, whitelist management, and community engagement, including platforms such as Atlas3, Mercury, SHIFT, and Raven. ● Solana Web3 Frontend Integration: Built and integrated Solana Web3 frontend features and supported NFTrelated product launches across the Blocksmith Labs ecosystem. ● Production-Ready NFT User Experience: Implemented product features with attention to usability, performance, and reliable wallet interactions in the Solana NFT ecosystem.
Solana SC Dev
Moduluc
2020 - 2021
● Web3 Application Integration: Integrated blockchain technology and Web3 protocols into Moduluc web applications, enabling secure decentralized interactions. ● Frontend and NFT Product Development: Developed frontend and Web3 features for ecosystem websites and NFT-related applications, including Moduluc and AiriA-related products. ● AiriA NFT Ecosystem Support: Supported AiriA NFT ecosystem development, contributing to a collection that reached 16.4K SOL cumulative marketplace volume.
Software Engineer
Smooth Team
2016 - 2019
● Real-Time Auction Product Development: Developed the core product (online auctions) using two-way realtime communication with a Firebase database. ● Automated Auction Monitoring: Built a Node.js monitoring system that tracked auction end times and updatedclient interfaces in real time, reducing manual refresh needs. ● Scalable REST API Architecture: Designed architecture and developed a fast, reliable and scalable REST API for a cloud based recruitment and workforce management system. ● Resource Planning Features: Introduced advanced resource planning features that take into consideration employee availability and a flexible platform for generating and maintaining user shifts.

Skills

aws
defi
evm
heroku
metaverse
nft
react
rust
smart-contract
solana
solidity
web3js