Hire the best Cryptographers in Noida, IN
Check out Cryptographers in Noida, IN with the skills you need for your next job.
- $NaN hourly
- 4.8/5
- (39 jobs)
Cryptography
Smart ContractDeFiBlockchainCrypto Exchange PlatformSolidityDockerNode.jsGolangKubernetesReact NativeReactJavaScript - $NaN hourly
- 5.0/5
- (3 jobs)
Cryptography
Ethers.jsNodeJS FrameworkReactEthereumBlockchain ArchitectureBlockchainCryptocurrencyweb3.jsSolidityNode.jsSmart ContractSoftware Architecture & DesignCrypto WalletTruffle - $167 hourly
- 5.0/5
- (4 jobs)
Hello folks! I am Sachin - a Full Stack Developer with a strong backend focus and 8+ years of experience building scalable platforms and Web3 integrations. I specialize in designing secure APIs, integrating EVM-compatible smart contracts, and delivering robust backend systems that power real-world blockchain apps. Core Skills: - Backend: Node.js, Express.js, MongoDB, Web3.js, Ethers.js - Smart Contracts: Solidity, EVM chains (Flare, Ethereum, BSC) - Frontend: React, Next.js, TailwindCSS - Integrations: MetaMask, REST APIs, Wallet Auth Projects I’ve worked on: - Blockcities: Real estate tokenization platform - backend architecture + smart contract integration - Seedify Fund: IDO launchpad - built both backend and frontend to support token sales and user dashboards - Uppercent: Tokenized learning platform powered by Flare blockchain - smart contract development + complete backend API suite + Developed AI Chat Interface called Uppy similar to ChatGPT. Whether you need someone to handle complex backend systems, blockchain integrations, or full stack execution, I’ve got you covered. Let’s connect and talk about how I can help with your project!
Cryptography
MEAN StackReact NativeBlockchain DevelopmentSolidityBlockchainCryptocurrencySmart ContractInitial Coin Offering - $150 hourly
- 4.8/5
- (12 jobs)
PKI Security products and solutions related Cryptography, PKCS#11, HSM, Smart Card, Multi-factor Authentication, OTP Authentication, Bio-metric authentication, Application Security, Encryption, Digital Signature, CSP, Credential Provider, solution conforming to NIST FIPS-140 level 2/3 certification, PIV, CAC, Entrust, Id-entrust, CMS solutions, MS Identity life cycle Manager, Minidriver, SSL and VPN integration, Various Identity access control and management solutions, PDF Signing on Mobile, Remote PDF signing, Personalization of NFC mifare Classic 1K and 4Ksmart card, Access authentications, Worked on solutions targeted for Desktop (Windows, Linux, Mac), Embedded Software, IOT Device solutions, Android Native Development, Cloud solutions, - Languages*:: C, C++, Java, QT, C# ,Python,Javascript, TypeScript - Operating System:: Windows, Android,vxWorks, Linux, Embedded Linux - Tools:: GCC, GDB,LLVM, LLD, Android Studio, Shell scripting, Eclipse, Visual Studio - Standards/ API:: PKCS # 11, #12 , MS CAPI, Credential Provider, TokenD, KeyChain APIs, ISO - 7816, Bluetooth / Bluetooth LE APIs, FIPS-140 level 2 & 3, KMIP specification, FIDO specifications, PCSC lite, EMV specification, Master/Visa, ANSI Standard for key exchanges, TR31 and TR34 Key blocks, PIN, PCI DSS, CCSS level 3, - OpenSource:: OpenSSL, OpenSSH, BouncyCastle (FIPS/Non-Fips) - Web Technologies:: NodeJS, Protobuffer, DJanfo, Angular, HTML, CSS, React.js, Next.js, XML, WS security - HSM: IBM CloudHSM, AWS-CloudHSM, Google Cloud HSM, Azure Cloud HSM, Thales DPoD, Thales Luna HSM, AWS-KMS, Payment HSMs, SafeNet CloudHSM, DPoD, SoftHSM, AWS Payment Cryptography, nShiled, CiperTrust, Utimaco, - Blockchain: Bitcoin and Ethereum signing with CloudHSM, BIP32 Signing, secp256k1 signing, Ethereum Signer with CloudHSM.
Cryptography
OAuthWindows API DevelopmentBlockchain, NFT & CryptocurrencyC++JavaJavaScriptReverse EngineeringNFCCAndroidPythonApplication SecurityEncryptionInformation SecurityLinuxElliptic Curve Cryptography - $30 hourly
- 5.0/5
- (4 jobs)
Thinking about trying a Proof of Concept (POC)? Feel free to reach out! With my customized template repositories, we can quickly build an MVP and get things moving. Got a big idea and want to turn it into something huge? I have over 5 years of professional development experience, and I’ve worked on some really cool projects along the way. I’d love to help you bring your idea to life. Stuck on a tough bug or issue? I’m here to help! Debugging can be tough, but I enjoy jumping in and finding solutions. Need a consultation before starting your build? I’ve got solid experience in Blockchain and Backend development, and I keep myself updated on the latest trends like EIPs, ERC20s, NFTs, DeFi protocols, Layer 2, wallet integration, token creation and more. I can offer insights on what might work best for your project and even help you design the architecture for your product or POC. Beyond just the technical know-how, I’m also someone who loves contributing fresh ideas and going all-in on the project and team. With me onboard, you can kick off something truly exciting. Here’s what I do professionally: ✅ I design, develop, and test smart contracts, and have deployed contracts on multiple EVM chains. ✅ I’m solid in backend development and can build backend services like APIs for dApps, arbitrage bots for trading, monorepos, microservices, and more. ✅ Over the past 2.5 years, I’ve been deeply involved in the DeFi space, designing DEXs, vault contracts, staking pools, and yield-bearing contracts, and contributing to big projects like ROVI network, Habit Network, and much more. ✅ I also design and develop subgraphs for data indexing, deploy smart contracts, and stay up to date on smart contract security and vulnerabilities. ✅ Some other projects I’ve worked on include lottery smart contracts, NFT marketplaces, ERC1155 contracts, ICOs, vesting contracts, and custom ERC20 contracts. I also have experience building websites and integrating smart contracts, with several cool React projects under my belt. With all of this, I consider myself hard-working, creative, punctual, and easy to work with. I have strong communication and leadership skills, and I’ve got plenty of experience working and shipping products remotely. I’ve been in the crypto space since 2019, and I’m passionate about building, growing, and contributing to this industry, especially within the community. -: 𝐂𝐎𝐑𝐄 𝐀𝐑𝐄𝐀𝐒 𝐎𝐅 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄:- ✅Smart Contract Creation {Tokens | NFTs | DAOs | Flash Loan | Arbitrage | and more...} ✅NFT Marketplace Development ✅Smart Contract deployment ✅Decentralized Applications (dApps) ✅EVMs {Solidity} ✅Decentralize Wallet ✅CEX, DEX with order book platforms like PancakeSwap and Uniswap. ✅Forking: Bitcoin, Litecoin, Dash, PIVX, Firo. Custom blockchain creation and modification. ✅Cross-Chain Solutions ✅Tokenization on Various Platforms: ETH, BSC, Tron, Polygon, Arbitrum. ✅Custom token development for diverse needs. ✅Forking {Bitcoin, Litecoin, Dash, PIVX, Firo. Custom blockchain creation and modification} ✅Web3.js 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: ✅HTML | CSS | JavaScript | Bootstrap | NextJs| NodeJs ✅Web3 JS | React JS | Typescript ✅Database { MySQL | PostgreSQL | MongoDB | CouchDB | and more...} 𝐎𝐭𝐡𝐞𝐫: ✅Tokenomics Consulting ✅Blockchain Consulting ✅Ongoing Maintenance/Support I’d love to connect and chat more! I’m always open to an interview to showcase my technical skills and communication style.
Cryptography
ReactBlockchain ArchitectureCryptocurrency ForkingSolanaweb3.jsHyperledger FabricRustSolidityBlockchain DevelopmentCrypto Wallet DevelopmentSmart ContractLayer 2 BlockchainCrypto Exchange PlatformBlockchainBlockchain, NFT & CryptocurrencyEthereum - $25 hourly
- 5.0/5
- (2 jobs)
Why Founders Hire Me: Because I act like a partner, not a freelancer. I bring leadership, solve real problems, and remove blockers. I’ve delivered full DeFi systems, Web3 betting platforms, NFT projects, and scaled infra that just works. I'm Avi Saini — a Web3 CTO and hands-on technical lead who’s helped founders and teams ship over 20 decentralized platforms, raise millions in funding, and avoid tech disasters. I don’t just code — I solve problems, fix broken projects, and get your roadmap back on track. 🚧 What I Fix (Fast): 🔥 Bloated smart contracts draining gas? I optimize and secure them. 🔥 Shaky dev team? I replace chaos with a vetted crew and clear sprints. 🔥 Fuzzy MVP? I blueprint your architecture and own delivery. 🔥 Half-baked DApp? I lead full rebuilds: contracts, UI, backend, wallets, DevOps. 🚀 Core Stack & Delivery Zones: Smart Contracts: Solidity, ERC-20/721/1155, staking, DAO logic DApps: React, Tailwind, Node.js, Web3.js, Ethers.js Infra: Docker, IPFS, Alchemy, CI/CD, AWS, GCP Chains: Ethereum, Polygon, BSC — multi-chain ready Wallets & Payments: MetaMask, WalletConnect, fiat ramps, escrow 💼 Recent Wins: Launched a DeFi payment suite with 100K+ users Delivered a high-volume NFT platform with custom royalties and admin controls Saved a failing Web3 betting DApp with zero-doc handover and live re-architecture Rolled out staking + liquidity contracts with full audit readiness in 2 weeks You want leadership, speed, and real delivery? I’ll bring that on day one — not day 90. Let’s cut the noise and build something that scales!
Cryptography
Cloud Engineering ConsultationDevOpsNext.jsMobile App DevelopmentReact NativeReactProduct DevelopmentWeb3CryptocurrencySmart ContractEthereumGolangBlockchain ArchitectureBlockchain Development Want to browse more freelancers?
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