Full Stack Developer - Web3 Project (Serious Applicants Only)

Posted yesterday

Worldwide

Summary

Who We Are We're a small, focused team building [Project Name] - a [DeFi protocol / NFT platform / RWA marketplace] on [Ethereum / Base / Arbitrum]. We've been in this space long enough to know the difference between a developer who ships and a developer who talks. We're hiring the first kind. We don't micromanage. We don't do standups at 6am. We don't ask for status updates every hour. We hire adults and expect adult work. But we do expect ownership. If you join, you own your code. You own your bugs. You own the deployment that goes to mainnet at 2am because the gas was cheap. If that's not your style, this isn't your role. Who We're Not Looking For Let's get this out of the way, because we've seen it all: The tutorial graduate. Finished a Udemy course, deployed an ERC-20 to Goerli, calls themselves a Web3 developer. No. The "I can learn Solidity" candidate. We're not paying you to learn on our dime. Come back when you know. The agency middleman. If you're going to subcontract this to three people in three time zones and take 40%, don't waste our time. The resume padder. Looking for a brand name to slap on LinkedIn. We're not a stepping stone. The "I only do frontend" person. Read the title. We need both. The "I only do contracts" person. Same. Read the title. The lowballer. If you quote $25/hr for senior Web3 work, we know exactly what you are. If any of these hit close to home, close the tab. No hard feelings. Who We're Actually Looking For One developer. Senior. Handles the whole stack. Smart Contracts Writes Solidity like it's second nature Tests with Foundry or Hardhat - real tests, not smoke tests Knows gas optimization isn't optional Has deployed to mainnet - and can prove it Understands that an audit isn't a formality Knows reentrancy, oracle manipulation, and access control attacks from experience, not from a blog post Frontend React / Next.js with TypeScript Wires wallets properly - wagmi + viem or ethers.js Handles transaction states, errors, network switching like a professional Builds UIs users don't need a manual to use Backend Node.js - real APIs, not toy servers Postgres or Mongo - schema design, not just queries Indexes on-chain data - The Graph, Ponder, or rolls their own Knows when off-chain logic belongs off-chain As a Person Communicates clearly. In English. In writing. Says "I don't know" when they don't know. Then finds out. Pushes back when something is a bad idea. We want that. Doesn't disappear. Doesn't ghost. Doesn't miss deadlines without warning. Takes pride in the work, not just the paycheck. The Stack Contracts: Solidity, Foundry (preferred) or Hardhat, OpenZeppelin Frontend: Next.js, TypeScript, wagmi + viem or ethers.js Backend: Node.js, Postgres or MongoDB Indexing: The Graph, Ponder, or custom Chains: EVM - Ethereum, Base, Arbitrum, Polygon Nice to Have ERC-4337 / account abstraction Upgradeable contracts - UUPS, Transparent Proxy L2 deployment experience Rust / Anchor if you also cover Solana You've worked with an auditor before - you know what they flag You've been on the receiving end of a post-mortem and learned from it How to Apply We don't want a cover letter. We want proof. Send: Two or three Web3 projects you personally built - live links Your specific role on each - contracts, frontend, backend, or all three The chain and stack for each One contract address you deployed (mainnet preferred; testnet acceptable if under NDA) Your hourly rate and weekly availability Your time zone How We Work Clear specs. Defined roadmap. No moving goalposts. Direct line to the founder. No PM layers, no account managers, no middlemen. Weekly sync. Async the rest of the time. We pay for quality. We're not running an auction. Long-term for the right person. We'd rather keep one great dev for two years than churn through five. The Bottom Line We're not the biggest project on Upwork. We're not throwing around buzzwords to attract 500 applicants. We're building something specific, with a specific person in mind. If you read this and thought "this is me" - apply. Show us your work. If you read this and thought "I can probably fake this" - don't. We'll find out on the first call. We always do. To apply: Submit your proposal with the items above. Specific beats long. Proof beats promises.

  • Less than 30 hrs/week
    Hourly
  • 1-3 months
    Duration
  • Expert
    Experience Level
  • $120.00

    -

    $180.00

    Hourly
  • Remote Job
  • Complex project
    Project Type

Contract-to-hire opportunity

This lets talent know that this job could become full time.
Learn more
Skills and Expertise
Node.js
React
JavaScript
Activity on this job
  • Proposals:Less than 5
  • Last viewed by client:5 hours ago
  • Interviewing:
    0
  • Invites sent:
    60
  • Unanswered invites:
    57
About the client
Member since Sep 21, 2026
  • Philippines
    Antipolo1:48 PM

Explore similar jobs on Upwork

Mobile Device Management Software
FastAPI
Python Asyncio
Android Debug Bridge
Screencast META APIHourly‐ Posted 4 weeks ago
Facebook Graph API
Instagram API
Facebook Messenger
Facebook Development
CodeIgniter
Chatbot Development
Social Media Account Integration
Laravel
Marketing Automation Software
Payment Gateway Integration
SaaS
API Development
Social Media Account Setup
API Integration
Web Development

How it works

  • Post a job icon
    Create your free profile
    Highlight your skills and experience, show your portfolio, and set your ideal pay rate.
  • Talent comes to you icon
    Work the way you want
    Apply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
  • Payment simplified icon
    Get paid securely
    From contract to payment, we help you work safely and get paid securely.
Want to get started? Create a profile

About Upwork

  • Rating is 4.9 out of 5.
    4.9/5
    (Average rating of clients by professionals)
  • G2 2021
    #1 freelance platform
  • 49,000+
    Signed contract every week
  • $2.3B
    Freelancers earned on Upwork in 2020

Find the best freelance jobs

Growing your career is as easy as creating a free profile and finding work like this that fits your skills.

Trusted by

  • Microsoft Logo
  • Airbnb Logo
  • Bissell Logo
  • GoDaddy Logo