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Anupam B.

Anupam B.

Blockchain & AI Developer | Solana | Rust | Solidity | Smart Contracts

I've architected a full Layer-1 blockchain from scratch consensus, validators, staking and built AI agents that transact on-chain autonomously. 100% Job Success, every rated project 5 stars. I'm a Blockchain & AI Developer who ships complete products end-to-end: smart contracts, backends, web dApps, and mobile apps. Clients come to me when they need one developer who understands the full stack from on-chain logic to the app store. WHAT I DELIVER Agentic AI & On-Chain Payments — Autonomous AI agents transacting via the x402 protocol: machine-to-machine micropayments, zero human intervention. Built with LangChain, CrewAI, and LLM APIs. Custom Layer 1 Blockchains Complete chains with consensus, validator infrastructure, staking economics, block explorer, and faucet delivered with UAT reports and scaling roadmaps. Solana Development Anchor programs and MEV-aware trading systems with Jito bundle execution, backed by NestJS/PostgreSQL. Full dApp Development NFT marketplaces, DeFi tools, token platforms across Ethereum, Polygon, and EVM chains wallet integration to polished frontend. Mobile Apps Cross-platform Flutter apps with Web3 integration, including a multilingual P2P crypto trading platform with USDT escrow. AI Products & Automation LLM-powered systems, multi-agent workflows, AI fact checking infrastructure, and intelligent automation pipelines. Enterprise Integration Hyperledger Fabric systems, including edge-device deployments with tamper-proof data integrity. STACK Rust • Solidity • C++ • TypeScript • Python • React/Next.js • Node.js/NestJS • Flutter • Anchor • Web3.js • LangChain • CrewAI • IPFS • Hyperledger • PostgreSQL • MongoDB HOW I WORK Clients hand me a problem statement, not a spec and receive a production system with documentation, testing reports, and a roadmap. Recent feedback: "very professional and fast, will hire again." Whether it's a smart contract, a full dApp, a mobile app, or an AI agent system I build it production-ready. Let's scope your project.

🇮🇳Kolkata, India$15/hr100% JSS5.00 (13)Since Sep 2023

Earnings and projects

MRR
$749

Last 6 months ÷ 6

World#60,803 / 412k
🇮🇳Country#6,589 / 45.9k
Revenue, last 30 days
$691

Last 6 months: $4.5k

World#54,133 / 412k
🇮🇳Country#5,714 / 45.9k
Total earnings
$6.1k

Billed in all: $6.6k

World#237,998 / 412k
🇮🇳Country#28,738 / 45.9k
Per project
$234

$264 in the last 6 months

World#252,257 / 412k
🇮🇳Country#30,107 / 45.9k
Projects, last 6 months
17

Across 21 contracts

52% fixed48% hourly
World#7,985 / 412k
🇮🇳Country#1,171 / 45.9k
Projects in all
26

Across 36 contracts

61% fixed39% hourly
World#109,599 / 412k
🇮🇳Country#16,359 / 45.9k

Earnings, last 30 days

$6.6k+$691 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$5.5k$6.0k$6.5k$7.0kOct 8Oct 23Nov 7

Skill rankings: #1 in 1 skill of 20

Rarest: top 7% in web3.js, of 342. Ranked by MRR among everyone on Upwork with the skill.

  1. 1ZK Framework6 freelancers · 🇮🇳 #1Top 17%
  2. 2IPFS4 freelancers · 🇮🇳 #1Top 50%
  3. #6Hyperledger Fabric48 freelancers · 🇮🇳 #4Top 13%
  4. #10DApp Development131 freelancers · 🇮🇳 #7Top 8%
  5. #19Bitcoin267 freelancers · 🇮🇳 #6Top 7%
  6. #23Solana270 freelancers · 🇮🇳 #11Top 9%
  7. #24web3.js342 freelancers · 🇮🇳 #10Top 7%
  8. #39Ethereum531 freelancers · 🇮🇳 #18Top 7%