We are a blockchain company registered in India (No: U72200GJ2016PTC086049) providing "Enterprise Grade" blockchain development and security services. Our company was incorporated in 2016 and since then we are committed to the success of our client's projects.
We have completed 1000+ projects including blockchain applications development and smart contract security audits.
So, if you are looking for expert developers working for your dream project, then please contact us today.
Thanks for reading our profile.
Ethereum
ERC-20
Blockchain
Blockchain Architecture
Blockchain Development
Smart Contract
Node.js
JavaScript
PHP
Solidity
Smart Contract Development
MySQL Programming
Layer 2 Blockchain
Web3
Blockchain, NFT & Cryptocurrency
Waquar M.
Kishanganj, India
$80/hr
4.7
5 jobs
I build and ship complete Web3 products — Solana programs in Rust/Anchor, EVM smart contracts in Solidity, and the React apps on top — from idea to mainnet.
Building in blockchain since 2017 (8+ years). Recent work: Zenith, a DeFi trading platform I led as Head of Tech, and Ppay, a mobile crypto wallet built end to end.
What I deliver:
• Solana: SPL tokens, NFT mints, staking, DeFi programs — Rust + Anchor
• EVM (Ethereum / BSC): Solidity smart contracts — writing, integrating, upgrading
• Front ends: React / React Native / Next.js with wallet integration (Phantom, MetaMask)
• The full product: backend, APIs, deploy scripts, docs — one developer, complete delivery
How I work: clear milestones, daily updates, tested code, no surprises.
Building on Solana or EVM? Tell me what you have in mind — I usually reply within a few hours with a concrete plan and timeline.
Ethereum
Blockchain Development
Smart Contract
React
TypeScript
Node.js
React Native
Rust
Solidity
web3.js
Solana
DApp Development
Ethers.js
NFT
DeFi
Nawaz K.
Noida, India
$6/hr
5.0
5 jobs
Hi! I’m Nawaz, a results-driven 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 & 𝗪𝗲𝗯𝟯 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with 6+ years of experience building secure, scalable, and future-ready decentralized solutions.
I help startups, enterprises, and innovators transform blockchain ideas into production-grade platforms, covering everything from architecture and tokenomics to smart contracts, DApps, security, and deployment. My expertise spans DeFi, NFTs, token launches, enterprise blockchain, trading automation, on-chain data systems, and high-performance Web3 applications.
🔹What I Bring to the Table:
✓ End-to-End Blockchain Development — Architecture, smart contracts, backend, frontend, deployment & audits
✓ Smart Contracts (ERC-20, ERC-721, ERC-1155, SPL, BEP, TRC) — Secure, gas-optimized, audit-ready
✓ NFT Platforms & Marketplaces — Minting, metadata, IPFS, royalties, fractionalization
✓ DeFi Protocols — Lending/borrowing, staking, farming, liquidity pools, automated market making
✓ Crypto Wallet & Exchange Integrations — MetaMask, WalletConnect, Binance, Coinbase, custom wallets
✓ Web3 Integrations — Ethers.js, Web3.js, Moralis, The Graph, Chainlink, oracle feeds
✓ Token Launches (ICO, IDO, IEO, INO, STO) — Tokenomics, vesting, launchpad setup
✓ Trading & Arbitrage Bots — On-chain data reading, liquidity scanning, MEV-safe execution
✓ Performance Optimization — Gas optimization, caching, off-chain computation
✓ Security & Audit Readiness — Reentrancy protection, access control, fail-safes, unit testing
🔹Tech Stack Expertise:
- Languages: Solidity, Rust, JavaScript, TypeScript, Python, Go
- Smart Contract Tools: Hardhat, Truffle, OpenZeppelin, Remix
- Web3 Tools: Ethers.js, Web3.js, Moralis, IPFS, The Graph, Chainlink
- Frontend: React, Vue.js, Angular
- Backend: Node.js, Express.js, Django
- Blockchains: Ethereum, Polygon, BSC, Solana, Tron, Stellar, Algorand, Hyperledger
- DevOps / Infra: Docker, GitHub Actions, AWS, Railway, Vercel, CI/CD pipelines
- Databases: MongoDB, PostgreSQL, Redis
🔹Why Clients Hire Me
✓ 6+ Years of Real-World Blockchain Experience with proven product launches
✓ Multi-Chain Expertise to choose the best protocol for performance & cost
✓ Full-Stack Web3 Development — I build entire ecosystems, not just contracts
✓ Security-Driven Development with industry-grade audit standards
✓ Business & Technical Understanding — I translate ideas into viable products
✓ High Reliability — On-time delivery with clear, documented processes
If you’re looking to build or scale your blockchain product, let’s connect and turn your vision into a powerful decentralized solution.
I’d be happy to discuss your requirements and help you build something extraordinary.
Ethereum
Crypto Wallet
JavaScript
Node.js
React
DApps
Solana
Hyperledger Fabric
Cardano
MetaMask
NFT Marketplace
Solidity
Rust
Smart Contract Development
Web3
Ankur K.
Panipat, India
$85/hr
5.0
434 jobs
I hold Upwork’s Expert-Vetted badge, placing me among the top 1% of blockchain engineers on the platform, recognized for deep technical expertise, reliability, and consistent delivery.
I am a senior Blockchain Engineer with 6+ years of hands-on experience designing and delivering production-grade smart contracts, DeFi protocols, token launch infrastructure, and staking systems across Ethereum, BSC, Solana, TRON, and EVM-compatible chains.
I specialize in:
- Token launch & fundraising contracts (presale logic, vesting, allocations)
- Staking & rewards systems (APR logic, emissions, compounding)
- DeFi protocols (lending, liquidity, yield mechanisms)
- Secure, gas-optimized Solidity smart contracts
- Smart contract integrations with existing platforms and backends
I’ve contributed to 300+ blockchain projects, including live exchanges and large-scale on-chain systems, giving me a full lifecycle understanding — from protocol design and architecture to deployment, testing, and post-launch support. Security, scalability, and long-term maintainability are always first-class concerns in my work.
While I have experience with NFTs, my current focus is on real utility blockchain systems — DeFi, staking, token economics, and secure on-chain infrastructure that supports sustainable products.
⭐ 99%+ of my client reviews are 5-star, reflecting clear communication, on-time delivery, and dependable execution.
If you’re looking for a senior blockchain engineer who can take ownership of complex smart contract systems and deliver with confidence, I’d be happy to discuss your project and help you move forward efficiently.
Ethereum
Blockchain Architecture
Blockchain Development
Smart Contract
Solidity
DApps
DeFi
Binance Coin
Web3
Blockchain Security
Utility Token
Reward Token
Vikas K.
Jawala Mukhi, India
$15/hr
4.7
19 jobs
I am a 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 & 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 Developer with over 7+ years of experience, focused on building scalable 𝐖𝐞𝐛𝟑, 𝐃𝐞𝐅𝐢 𝐚𝐧𝐝 𝐍𝐅𝐓-based applications and high-performance web platforms using Next.js, React.js, and Node.js. I specialize in end-to-end decentralized application development and have a strong ability to convert ideas into fully production-ready blockchain systems.
🔗 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲
Smart contract development using Solidity & Rust
Ethereum, Solana, Bitcoin, Hyperledger, Substrate
ERC20, ERC721, ERC1155 token standards
DeFi systems, staking, tokenomics, liquidity logic
NFT minting platforms and marketplaces
Secure contract design using OpenZeppelin standards
🌐 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
Frontend: React.js, Next.js, Angular, Vue.js
Backend: Node.js, Express.js, Laravel, Firebase
APIs: RESTful APIs, Web3 integrations
Databases: MongoDB, MySQL
Wallet integrations: MetaMask, WalletConnect
Deployment: Vercel, AWS, Docker
⚙️ 𝐖𝐞𝐛𝟑 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐒𝐤𝐢𝐥𝐥𝐬
DApp architecture design and implementation
Smart contract deployment on testnet & mainnet
Gas optimization and performance tuning
Blockchain data integration with frontend systems
Web3.js / Ethers.js integration
Secure transaction handling and contract interactions
🧠 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐀𝐩𝐩𝐫𝐨𝐚𝐜𝐡
Requirement analysis before development starts
Modular and scalable architecture design
Security-first coding practices
Clean, maintainable, and well-structured code
Continuous testing and debugging
Smooth deployment workflow to production environments
💡 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫
Fully functional decentralized applications
Secure and optimized smart contracts
Seamless Web3 + frontend integration
Scalable backend systems built with Node.js and Next.js
Production-ready DeFi, NFT, and full-stack web solutions
🤝 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐒𝐭𝐲𝐥𝐞
Independent and fast execution
Clear communication throughout the project
Focus on quality and long-term scalability
Quick adaptation to project requirements
Commitment to delivering reliable blockchain solutions
Blockchain Developer, Web3 Developer, Smart Contract Developer, Solidity Developer, DApp Developer, DeFi Development, NFT Marketplace, Ethereum Developer, Solana Developer, Full Stack Developer, React.js, Node.js, Crypto Development, Tokenization, Decentralized Applications, Web3 Integration, Blockchain Architecture, Smart Contract Auditing, OpenZeppelin, Ethers.js, Web3.js,
Next.js Developer, Next.js Full Stack, React.js Developer, Node.js Developer, Node.js Backend, Next.js Web App, React Frontend Developer, Full Stack Next.js, Server Side Rendering, Next.js API Routes, REST API Node.js
#BlockchainDeveloper #Web3 #SmartContracts #Solidity #DApp #DeFi #NFT #Ethereum #Solana #CryptoDevelopment #FullStackDeveloper #NodeJS #ReactJS #Web3Integration #Tokenization #BlockchainTech #DecentralizedApps #Crypto #Fintech #SmartContractAudit #NextJS #NextjsDeveloper #ReactDeveloper #NodeJSDeveloper #FullStackNextJS #ServerSideRendering #ReactJS #BackendDeveloper
Ethereum
Blockchain
Blockchain Architecture
Blockchain Development
Ethereum Classic
Smart Contract
Cryptocurrency
Solidity
Solana
Blockchain Development Framework
React
Node.js
Next.js
ExpressJS
NestJS
MySQL
MongoDB
PostgreSQL
Full-Stack Development
Yekkali Prem S.
Surat, India
$35/hr
5.0
5 jobs
I am a highly skilled blockchain developer with over 7 years of experience specializing in Ethereum development, smart contract auditing, and blockchain security. I bring a deep understanding of Solidity, Web3, and decentralized applications (DApps) to deliver secure, efficient, and scalable blockchain solutions.
My expertise includes:
Smart Contract Development & Auditing: Comprehensive audits to identify vulnerabilities, ensure security, and optimize gas usage.
Token Development: Expertise in creating ERC-20, ERC-721, and ERC-1155 tokens, with fully customized functionality.
DeFi and NFT Projects: Proven experience in building and auditing DeFi protocols and NFT marketplaces.
DApp Development: Building intuitive, decentralized applications using modern tools like Truffle, Web3.js, and Ethereum.
Blockchain Security: Employing tools like Remix, MythX, and Slither for in-depth code analysis and gas optimization.
With a strong focus on client satisfaction, I take pride in delivering clean, well-documented code and detailed audit reports. My past work includes successful collaborations on projects handling millions of dollars in Total Value Locked (TVL), ensuring the highest standards of quality and security.
Why Choose Me?
✔ Thorough and detailed smart contract audits
✔ Proactive communication and timely delivery
✔ Industry-leading expertise in blockchain security
Whether you're looking to build your next DApp, launch a DeFi protocol, or ensure your smart contracts are bulletproof, I’m here to help. Let’s create something exceptional together!
Ethereum
ERC-20
ERC-721
Blockchain Development
Smart Contract
Solidity
Smart Contract Development
Blockchain Security
Truffle
DeFi
Uniswap
Blockchain, NFT & Cryptocurrency
DApp Development
Web3
Tokenomics
How it works
Post a job for freePost a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
“Upwork provides an umbrella-level of security. I can see a talent’s work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.”
KD
Kim Darling
Emerald Tiger
“Upwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.”
DM
David Merry
Kinetic Investments
“Our very specific requirements can be a challenge—With Upwork, we’re able to access a bigger community to ensure the success of our projects.”
KK
Katja Krohn
Summa Linguae
How do I hire a Ethereum Developer in India on Upwork?
You can hire a Ethereum Developer in India on Upwork in four simple steps:
Create a job post tailored to your Ethereum Developer project scope. We'll walk you through the process step by step.
Browse top Ethereum Developer talent on Upwork and invite them to your project.
Once the proposals start flowing in, create a shortlist of top Ethereum Developer profiles and interview.
Hire the right Ethereum Developer for your project from Upwork, the world's largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a Ethereum Developer?
Rates charged by Ethereum Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a Ethereum Developer in India on Upwork?
As the world's work marketplace, we connect highly-skilled freelance Ethereum Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Ethereum Developer team you need to succeed.
Can I hire a Ethereum Developer in India within 24 hours on Upwork?
Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive Ethereum Developer proposals within 24 hours of posting a job description.