I will be your expert mern stack and nextjs developer for apps and apis

S
seankelley621
S
seankelley621
Sean K
be your expert mern stack and nextjs developer for apps and apis
Full Screen
be your expert mern stack and nextjs developer for apps and apis
Full Screen
Full Screen
be your expert mern stack and nextjs developer for apps and apisbe your expert mern stack and nextjs developer for apps and apisbe your expert mern stack and nextjs developer for apps and apis

About this gig

Hello great buyer,


Looking for a full stack web developer to build powerful web and mobile solutions? Im a skilled MERN Stack & Next.js developer specializing in custom website development, scalable APIs, and high-performance React Native apps.

With expertise in React.js, Next.js, Node.js, Express, and MongoDB, I deliver secure, fast, and maintainable solutions tailored to your business goals. From website development to mobile apps and backend integrations everything is built for performance and scalability.

What I Offer:

  • MERN Stack & Next.js Web Development
  • React Native Mobile Apps (iOS & Android)
  • Custom REST APIs & third-party integrations
  • Scalable architecture + clean, maintainable code
  • Fast delivery and reliable communication

Lets collaborate to bring your web or mobile app idea to life with modern technologies and best development practices. Message me to discuss your project today!

  • Website type

    • Crowdfunding

  • Programming language

    • JavaScript
    • AngularJS
    • Tailwind CSS
    • Vue.js
    • Rust

  • Website features

    • Marketing
    • Payment
    • Forum
    • Customer support
    • Video
    • Chat
    • Gallery
    • Dashboard
    • Reviews
    • Landing page
Respect third-party rights

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Get to know Sean K

Sean K
  • FromUnited Kingdom
  • Member sinceDec 2025
  • Avg. response time2 days

  • Languages

    Spanish, French, English
I am Sean Kelley, a Senior Blockchain developer specializing in smart contracts and DeFi protocols. I develop high-quality smart contracts and web3 for DEXs (Uniswap, PancakeSwap), DeFi platforms (Aave, GMX, Compound), ICO/launchpads (PumpFun, PinkSale), NFTs, and tokens (Governance, Tax), Cross-chain bridge, Crypto game, Presale, Staking, Farming DApp. Skilled in Solidity and Rust on EVM (Ethereum, Base, BSC, etc) and non-EVM chains (Solana, TON). I also build advanced trading bots (Sniper, CopyTrading, Volume, MarketMaker) and trading platforms like Dexscreener, GMGN, and Photon.

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