
ChainCoder
Full Stack Blockchain Web3 and dApp Developer
Skills

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Portfolio
Work experience
Full Stack Blockchain and Web3 Developer
Softech Bee • Full-time
Aug 2017 - Dec 2025 • 8 yrs 4 mos
Worked as a full-stack blockchain and Web3 developer, designing and delivering secure, scalable blockchain solutions for startups and enterprise clients. Built and deployed smart contracts using Solidity, including ERC20 tokens, NFT standards, staking systems, and custom business logic with a strong focus on security, gas optimization, and maintainability. Developed full-stack Web3 applications, integrating smart contracts with modern frontends and backend services. Led development of NFT marketplaces, token platforms, and decentralized applications with wallet integrations and admin dashboards. Worked extensively with cloud infrastructure and scalable architectures, ensuring high availability, performance, and clean system design across projects. Collaborated closely with product, design, and business teams to translate requirements into production-ready blockchain solutions and successfully deliver complex projects end-to-end.
Full Stack Web Developer
Recorders and medicare systems • Full-time
Dec 2014 - Jul 2017 • 2 yrs 7 mos
Worked as a full-stack web developer building and maintaining business-critical web applications for enterprise and healthcare clients. Developed backend systems using PHP (Laravel) and Node.js, implementing RESTful APIs, database schemas, and core application logic for CRM and internal management platforms. Built responsive frontend interfaces using JavaScript and React, ensuring usability, performance, and cross-browser compatibility. Delivered e-commerce and data-driven applications with secure authentication, role-based access, and optimized database queries. Collaborated closely with product and QA teams to gather requirements, fix issues, and deliver stable, scalable web solutions within deadlines.
144 Reviews
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Rating Breakdown
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saquibfraz369

India
Outstanding experience working on a blockchain-based project! They showed top-level professionalism, deep knowledge of Solidity, and delivered a secure, optimized smart contract ahead of schedule. Their attention to detail, clear communication, and willingness to go the extra mile made the process smooth...
Up to $50
Price
4 days
Duration
mirgudes
Repeat Client

United States
I recently worked with Dev Tausif and was thoroughly impressed with his professionalism, expertise, and communication skills. He was extremely responsive and delivered the project well before the deadline. The quality of his work was outstanding, and he went above and beyond to ensure that I was delighted...
$50-$100
Price
1 day
Duration
agiaretti
Repeat Client

Switzerland
All good as always. I recommend this freelancer. +++++
Up to $50
Price
1 day
Duration

dennismax

Denmark
Okay seller I´m satisfied
Up to $50
Price
2 days
Duration
agiaretti
Repeat Client

Switzerland
The request was completed as requested. All OK. Thanks
$100-$200
Price
2 days
Duration