SolidityEthereumSolanaWeb3DeFi

Hire Blockchain Developers | Solidity & Web3 Engineers from $3,000/mo

Dedicated blockchain engineers for DeFi protocols, NFT platforms, DAOs, and Web3 dApps | integrated with your team at 65% below US market rates.

from $3,000

Per Month

48 hrs

Start Date

65%

Below US Rates

No Lock-in

Month-to-Month

Blockchain Developer Rates

2–4 years experience

Mid-Level Blockchain Dev

$3,000/mo

Smart contract development, dApp frontends, token standards, wallet integration.

Hire This Level

4–7 years experience

Senior Blockchain Dev

$4,500/mo

DeFi protocol design, security audits, Layer 2 solutions, cross-chain bridges.

Hire This Level

7+ years experience

Lead Blockchain Engineer

$6,500/mo

Protocol architecture, tokenomics, governance systems, team leadership.

Hire This Level

Blockchain Skills Covered

SolidityEthereum / EVMSolana (Rust/Anchor)Hardhat / FoundryWeb3.js / Ethers.jsOpenZeppelinDeFi ProtocolsERC-20 / ERC-721 / ERC-1155IPFS / FilecoinLayer 2 (Polygon, Arbitrum, Base)The GraphChainlink OraclesWallet Integration (MetaMask, WalletConnect)Smart Contract Auditing

What's Included

Full-time dedicated (160 hrs/month) or part-time
Daily standups & Slack/Teams communication
Works in your US time zone
Smart contract testing & security review
Testnet & mainnet deployment included
Instant free replacement if needed
No recruitment fees or long-term contracts
Month-to-month | scale up or down anytime

How to Hire Blockchain Developers & Solidity Engineers in 48 Hours

From Web3 brief to dedicated blockchain engineer in two business days — no lengthy recruitment cycles, no guesswork.

01

Submit Your Web3 Brief

Tell us your chain (Ethereum, Solana, Polygon), your DeFi/NFT/DAO use case, smart contract scope, and desired experience level.

02

Receive Vetted Profiles

Within 24 hours we send 2–3 pre-screened blockchain developer profiles — Solidity, Rust, or Web3.js — matched to your exact needs.

03

Technical Interview

Review code samples, walk through a sample smart contract, discuss security patterns (reentrancy, flash loans) and gas optimization.

04

Smart Contracts Ship

Your dedicated Solidity or blockchain developer joins your GitHub org, connects to your testnet, and delivers audited code from day one.

What Our Blockchain Developers Build

Our Solidity engineers, Web3 developers, and smart contract specialists have shipped production-grade decentralized systems across every major use case.

DeFi Protocols

  • Lending & borrowing platforms
  • DEX & AMM design (Uniswap-style)
  • Yield farming & staking contracts
  • Liquidity pool management

NFT & Digital Assets

  • ERC-721 / ERC-1155 minting
  • NFT marketplace development
  • Royalty enforcement contracts
  • Dynamic & on-chain metadata NFTs

DAOs & Governance

  • Governor Bravo / OpenZeppelin governance
  • Token-weighted voting systems
  • Multi-sig treasury management
  • DAO tooling & dashboards

Token & ICO Systems

  • ERC-20 token development
  • Vesting & lockup contracts
  • Token launch smart contracts
  • Tokenomics modeling

Cross-Chain & Layer 2

  • Polygon, Arbitrum, Base deployment
  • Cross-chain bridge development
  • Layer 2 contract optimization
  • Chainlink oracle integration

Web3 dApp Frontends

  • Wallet integration (MetaMask, WalletConnect)
  • Ethers.js / Web3.js dApp UIs
  • IPFS-hosted front-ends
  • The Graph subgraph indexing

Blockchain App Development Cost in 2026

What does it cost to build a blockchain app? Costs vary significantly by chain, complexity, and team model. Here's a breakdown based on real projects.

2–4 weeks

Smart Contract Only

$8,000 – $25,000

A single Solidity smart contract (ERC-20 token, vesting, staking, escrow) with testing, deployment to testnet + mainnet, and basic audit.

6–10 weeks

NFT Minting Platform

$20,000 – $60,000

ERC-721/1155 contracts, minting UI, IPFS metadata storage, wallet connect, OpenSea integration. Includes frontend dApp.

12–20 weeks

DeFi Protocol (MVP)

$60,000 – $150,000

Lending/borrowing or DEX MVP — liquidity pools, token swaps, yield calculations, smart contract suite + frontend dApp + security audit.

8–14 weeks

DAO Platform

$30,000 – $80,000

Governance contracts (Governor Bravo / OpenZeppelin), proposal/voting UI, multi-sig treasury, member dashboard, token integration.

16–28 weeks

Cross-Chain Bridge

$80,000 – $200,000+

Multi-chain asset bridge with relayers, lock/mint/burn logic, bridge UI, and mandatory independent security audit. High complexity.

48 hrs to start

Dedicated Monthly Model

From $3,000/mo

A dedicated blockchain developer at $3,000–$6,500/month delivers 160 hours/month — the most cost-effective model for ongoing development.

What Drives Blockchain Development Costs?

Chain complexity — Ethereum/Solana vs simpler EVM chains
Smart contract audit — adds $5,000–$30,000 but is non-negotiable for production
Frontend dApp — React/Next.js UI adds 30–50% to total cost
Security requirements — DeFi protocols need multiple audits
Token economics design — complex tokenomics adds design/modeling cost
Team model — dedicated dev ($3K/mo) vs project agency ($15K–$25K/mo)

Dedicated Blockchain Developer vs Freelancer vs US Agency

Blockchain talent is scarce and expensive in the US. Here's why Web3 teams choose CodeMiners.

CriteriaCodeMinersFreelancerUS Agency
Monthly CostFrom $3,000/mo$5,000–$12,000/mo$18,000+/mo
Time to Start48 hours2–4 weeks4–10 weeks
Solidity DepthSenior, audited codeVaries widelyJunior–senior mix
Smart Contract AuditingIncluded in scopeExtra costExtra engagement
Contract TermsMonth-to-monthProject-by-project6–12 month lock-in
Replacement GuaranteeFree within 5–7 daysRestart search yourselfRenegotiate
US Time ZoneConfirmedVariesYes

Hire a Blockchain Developer Today

Tell us your Web3 project. Your dedicated Solidity or blockchain engineer starts within 48 hours — month-to-month, no lock-in.

Get Started

Why CodeMiners for Blockchain?

Solidity, Ethereum, Polygon, Hardhat, Foundry, web3.js, ethers.js, IPFS, DeFi protocols.

Pre-vetted Senior Engineers

Every Blockchain engineer passes a 4-stage technical screen. Fewer than 8% of applicants make it through. By the time you meet a developer, they're already proven.

65% Below US Market Rates

Starting at $3,500/mo, you get a dedicated senior Blockchain developer at a fraction of the US cost. Quality and communication stay exactly the same.

Free Replacement Guarantee

Not a perfect fit? We replace your Blockchain developer within 5–7 business days at zero cost. No exit fees, no lock-in. The risk is entirely on us.

Common Use Cases

Smart contract development and auditingDeFi protocol integrationNFT marketplace development

Blockchain Developer Case Studies

Real outcomes from clients who hired blockchain developers through CodeMiners.

Series B SaaS startup (US)

B2B SaaS

Challenge

The in-house Blockchain team was overwhelmed after a major product pivot. They needed two senior engineers immediately to stabilize the platform and ship a new billing module before the next funding milestone.

Solution

CodeMiners placed two senior Blockchain engineers within 48 hours. They joined the client's GitHub, attended daily standups, and shipped the billing module in 5 weeks alongside existing team members.

Result

2× engineering velocity, billing module launched on schedule, $1.2M ARR milestone hit within 3 months.

E-commerce retailer (UK)

E-Commerce

Challenge

Peak season was approaching and the client's Blockchain frontend was underperforming — 4-second load times causing a 32% cart abandonment rate on mobile.

Solution

A CodeMiners Blockchain specialist audited the codebase, identified render-blocking assets and unoptimized data-fetching patterns, and rebuilt critical pages with performance-first architecture over 6 weeks.

Result

Load time reduced to 1.1 seconds. Cart abandonment dropped 18%. Revenue per session improved 24% during peak season.

Digital health startup (Canada)

HealthTech

Challenge

The team needed to build a HIPAA-compliant patient portal and integrate it with an existing EHR system in under 3 months, with a limited budget that ruled out hiring locally in Toronto.

Solution

CodeMiners deployed a Blockchain lead engineer plus one mid-level developer. They designed the portal architecture, built HIPAA-compliant data flows, and integrated the EHR API — all while the client's internal team focused on clinical features.

Result

Portal launched in 11 weeks, under budget by 28%. HIPAA audit passed first attempt. 3,000+ patients onboarded in month one.

Frequently Asked Questions

Everything you need to know about hiring blockchain developers through CodeMiners.

Still have questions?

Talk to Our Team