03/06/2026 updated

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Blockchain Full Stack Developer

2 Example Street, Dublin 2, D02 AY22, IRELAND, Ireland
Only remote
Bachelor of Science (BS)
2 Example Street, Dublin 2, D02 AY22, IRELAND, Ireland
Only remote
Bachelor of Science (BS)

Profile attachments

Tom Callaghan.pdf

InnovationHTMLJavaScriptAmazon Web ServicesAuditingUnit TestingCloud ComputingComputer ProgrammingContinuous IntegrationDevOpsDjangoPython (Programming Language)MongoDBNode.jsOrganization DevelopmentQuality ManagementBlockchainSmart ContractsNext.jsSoftware DeploymentSQL DatabasesTypeScriptRust (Programming Language)TestingData Storage TechnologiesTailwindReact.jsExpress.jsFull Stack DevelopmentSolidityGraphQLWeb3.jsWeb TechnologiesFront End Software DevelopmentApi DesignRestful ApiSafety PrinciplesDatabase AdministrationDockerGolangProgramming LanguagesMicroservices
Blockchain Development
Expertise in developing decentralized exchanges (DEX), integrating staking mechanisms and wallets, and creating NFTs with 8+ years of experience in building innovative blockchain products

Smart Contract Development
Proficiency in building LP token staking smart contracts, tokenomic smart contracts, NFT and marketplace smart contracts with deployment on multiple EVM chains

Full Stack Web Development
Advanced skills in React, Next.js, Node.js, TypeScript, JavaScript, Python, and mobile responsive front-end development with Tailwind CSS

Solidity Programming
Expert-level knowledge in Solidity for smart contract development and blockchain applications

Database Management
Experience with MongoDB and SQL for data storage and management solutions

DevOps and Cloud Technologies
Proficiency in Docker, Amazon AWS, CI/CD processes, and containerized application deployment

API Development
Skills in building RESTful APIs with Django, Express.js, and GraphQL for backend services

Testing and Quality Assurance
Experience in unit testing, security auditing, and ensuring high-quality, secure code implementation

Programming Languages
Proficiency in Rust, Python, Golang, and various web technologies including HTML & CSS and Web3 integration

Languages

EnglishNative speaker

Project history

Lead Developer

LiquidCrypto
Built LP token staking smart contracts interacting with Uniswap v2 and v3 DEXs, deployed 1K+ smart contracts on 9 EVM chains, satisfied security with open zeppelin library, built mobile responsive front-end with Next.js and Tailwind CSS, integrated smart contracts and Web3/Web2 wallet into front-end

Full-stack Developer

Upwork
Built 2 tokenomic smart contracts, 3 NFT and marketplace smart contracts, deployed 100K+ NFTs into IPFS, implemented royalty in NFT market-place, built anti-bot code to stop mint top rarity NFT, built NFT mint and market-place front-end with React and Next.js

Smart contract Developer

Zilliqa
Built ZRC-7 standard with Scilla, built snapshot and insignia voting DApp, built Pele DAO includes tokenomic, DEX, time-lock wallet, communicated with Zilliqa team and find bugs in chain and suggest solutions, negotiated contract terms with talent and oversaw credentialing process

Full-stack Developer

Deloitte
Lead back-end developers and built front-end with React, audit the website of client and gives instructions to developer on what to change on the website in order to fix it, make it load faster, and set up different AB tests, lead and conducted in depth analysis of business performance versus business goals, designed and developed internal systems based kafka and spark frameworks

Back-end Developer

Deloitte
Built Restful API with Django, Express, tested every unit with Node.js and Python, dockerized various stack application, implemented a different type of innovative software, worked well independently and on a team to solve problems

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