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$50/hr
$1K+ earned
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I build and review production Web3 systems across Solidity smart contracts, DeFi protocol logic, backend APIs, event indexing, monitoring, and wallet/DEX integrations.
My main production case is DSF.Finance, an Ethereum DeFi protocol. I worked on its technical stack: smart contracts, Curve/Convex strategy logic, LP accounting, pending deposit/withdrawal mechanics, Node.js/MySQL backend, event indexing, APY/TVL analytics, transaction lifecycle processing, Telegram monitoring, API security, and frontend Web3 data flows.
I can help with:
- smart contract review and remediation;
- Solidity bug fixing and refactoring;
- DeFi accounting and protocol logic;
- Web3 backend with Node.js / TypeScript;
- blockchain event indexing and transaction monitoring;
- wallet and DEX integrations;
- Telegram alerts and production monitoring;
- architecture review for Web3 / DeFi products.
I prefer clear scopes, written acceptance criteria, and practical deliverables. I do not work on scam tokens, hidden-transfer logic, honeypots, drainers, phishing, private-key handling, or off-platform payment requests.
$20/hr
$1K+ earned
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I am a versatile software engineer with more than 8+ years of comprehensive experience in full-stack development and 5+ years specialising in backend, web3 and blockchain technologies. Proven expertise in architecting and delivering robust, scalable applications across multiple platforms.
I am Results-driven with a proven track record of delivering high-quality software solutions across both traditional and blockchain domains. Combines deep technical knowledge with a strategic approach to problem-solving, enabling the creation of efficient, secure, and scalable applications. i am also experienced in the full software development lifecycle, from concept and design to deployment and maintenance.
$35/hr
$40K+ earned
Offers consultations
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Blockchain Solution Architect with 6+ years of experience designing, building, and scaling DeFi, NFT, DAO, and enterprise Web3 platforms.
Currently serving as a Solution Architect and Team Lead, managing cross-functional engineering teams while defining technical architecture, reviewing implementations, and delivering production-grade blockchain systems.
I specialize in transforming business requirements into secure, scalable, and maintainable solutions across smart contracts, backend services, and frontend applications.
✅ 6+ Years of Blockchain Development Experience
✅ Solution Architect & Team Lead
✅ Smart Contract Auditor
✅ DeFi Infrastructure
✅ Strong Product & System Design Mindset
Core Expertise
• Solidity Smart Contract Development
• DeFi Protocol Architecture
• ERC-20, ERC-721, ERC-1155
• DAO & Governance Systems
• NFT Marketplaces
• Yield Vaults & Staking Protocols
• Smart Contract Audits & Security Reviews
• Blockchain Solution Architecture
Tech Stack
Blockchain:
Solidity, Hardhat, Foundry, OpenZeppelin, ethers.js, wagmi, viem, Web3.js, IPFS
Frontend:
React, Next.js, TypeScript, Tailwind CSS
Backend:
Node.js, NestJS, Express.js
Databases:
MongoDB, PostgreSQL
Cloud & DevOps:
AWS, Docker, GitHub Actions
Notable Experience
• Built DeFi vault systems, governance modules, and tokenized investment platforms
• Blockchain Architect at DexCheck
• Built yield farming strategies for Don-Key Finance
• Developed NFT marketplace and tokenized asset infrastructure at TreeDeFi
• Audited projects including Gutter Cat Gang, Crypto Cannabis Club, Meta Penguin Island, and other Web3 protocols
Why Clients Work With Me
✅ Strong technical and business understanding
✅ Fast learner with excellent ownership mindset
✅ Architecture-first approach
✅ Security-focused development practices
✅ Clear communication and reliable delivery
✅ Able to lead projects from concept to production
I appreciate your time and would be happy to discuss your project requirements and how I can help deliver a scalable solution.
Dhavalkumar D.
has worked
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$45/hr
90%
Job Success
$40K+ earned
Offers consultations
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⭐⭐⭐⭐⭐ "Akhil is totally fantastic. His work had a tremendous impact on our product. He is very punctual, responsive, and professional in every way imaginable."
Hi, I’m Akhil — a full-stack developer and AI/Web3 engineer with over 6 years of experience. I help startups and teams turn ideas into real, working products. Whether it's building smart contracts, AI tools, or full platforms from scratch, I can jump in and get things done fast.
🔧 What I Can Do
✅ 6+ years of Web3 experience: smart contracts, DeFi, NFT platforms, on-ramp/off-ramp payment systems, and more
✅ AI + Full Stack Development: skilled with Solidity, React, Node.js, TypeScript, Go, Python, OpenAI, LangChain, and cloud setup
✅ I run Coding Sheep: a small dev agency that helped launch 20+ Web3 and AI products in the past 4 years
✅ Clear and constant communication: you'll always know what's going on with your project
🚀 Projects I’ve Worked On
❤️ Mooz – A marketplace for AI-generated music
❤️ Density – A crypto exchange for trading derivatives
❤️ LiveWager – Real-time online casino and betting platform
❤️ 3dSpot – AI tool that turns 2D images into 3D models
🏆 Why Clients Like Working With Me
1️⃣ Trusted to Deliver – I focus on building real value, not just completing tasks
2️⃣ Easy to Work With – I reply fast, stay available, and keep everything clear
3️⃣ Can Work in Any Codebase – Whether the code is new, messy, or old, I can pick it up quickly and start improving it
4️⃣ I Solve Problems – I don’t stop at writing code — I help you figure out what works best for your product
If you're building something in Web3 or AI, or just need a reliable engineer to get things moving, I’d love to hear from you.
Akhil B.
has worked
.
$150/hr
100%
Job Success
$100K+ earned
Available now
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I build AI agents that run real operations, not demos.
Fourteen years shipping production software, the last two building agent systems that operate live (wrong outputs cost money and silent failures lose customers).
Recent work:
• Pear Protocol - built a fully autonomous trading vault: it ingests signals, applies risk gating, and opens and closes positions on its own, security-first. Live in testing, tracking positively, with significant capital lined up. I'm also Pear's lead smart-contract dev (perpetual DEX, $300M+ volume in 90 days) - a multi-year relationship moving real money.
• KaribuKit - AI-native hospitality platform for safari lodges. I built the PMS, the AI guest assistant (Ranger), and an MCP server that lets external agents (Claude, ChatGPT) check availability and create bookings. Live, handling real reservations.
• Framedex - open-source local-AI pipeline that turns a video archive into a queryable knowledge base (Whisper + local vision models). 280+ GitHub stars, front-paged on Hacker News.
• SlopIt - agent-native blog publishing platform I founded. MCP-first, launched April 2026.
• SimbaStack - my independent studio. Helping move from "we should do AI" to agents that handle real work. 30+ products shipped.
What I do:
- Design and ship agent systems that handle real work - bookings, content, ops, support
- Build MCP servers that expose your product to the agent ecosystem (Claude, ChatGPT, Cursor)
- Set up LLM eval pipelines so you can ship model and prompt changes without breaking what works
- Architect multi-agent and tool-use workflows that hold up under real load and weird inputs
- Own the full stack around it: TypeScript / Next.js / Node / Postgres / Redis, infra and CI included
Why senior matters in this space:
Most of the AI agent market is screenshots, Twitter threads, and tutorial-grade glue code. I've shipped and operated agent systems in production where mistakes have a price. I know which patterns hold up under load, which fail in quiet ways you only notice in week three, and which abstractions don't survive the second user.
Track record:
Top 1% on Upwork, 100% Job Success across 30+ shipped products. A decade-plus building systems where correctness equals money - backend optimization at QuickSwap (largest DEX on Polygon, ~40% latency and cost reduction), CTO at RealNifty, Chief Blockchain Officer at a NYC fintech. Same instinct now points at agents.
If you have a real product and want agents that work inside it, not bolted on top, let's talk. Open to short builds, longer architecture engagements, and fractional CTO roles.
Niranjan S.
has worked
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$40/hr
100%
Job Success
$20 earned
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If you’re building an AI-native product, launching a Web3 protocol, or automating trading and on-chain workflows, I can help.
I design and ship production-grade systems across AI, blockchain, and backend architecture. Clean foundations, predictable performance, and systems that hold up under real usage.
I don’t build hype prototypes. I build infrastructure that runs.
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⚡ Crypto Trading Bots & Automation
• Automated trading bots (CEX + DEX)
• Arbitrage and multi-exchange strategies
• Telegram / Discord signal execution bots
• Real-time order execution systems
• Risk management and position sizing
• Portfolio tracking and PnL analytics
• Strategy backtesting and simulation
• WebSocket-based market data pipelines
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⚡ Web3 & On-Chain Trading
• DEX trading bots (Uniswap, liquidity pools)
• Smart contract interaction (Web3.py, ethers.js)
• On-chain event monitoring and automation
• Wallet and transaction management
• Gas optimization strategies
• EVM-based protocol integrations
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⚡ Backend Systems & APIs
• Python backend development (FastAPI, async systems)
• Exchange API integrations (Binance, Bybit, OKX)
• REST APIs and WebSocket handling
• Low-latency data processing pipelines
• PostgreSQL and Redis for trading systems
• Event-driven architecture and job queues
• Dockerized deployment and CI/CD
• Monitoring, logging, and failure recovery
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✅ I Help With
• Building trading bots from scratch
• Improving execution speed and reliability
• Fixing unstable or inaccurate bots
• Designing scalable trading infrastructure
• Integrating multiple exchanges and data sources
• Automating trading strategies
• Backend systems for crypto platforms
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🧩 Common Projects
• Multi-exchange arbitrage bot
• Telegram bot executing trading signals
• DEX trading bot interacting with smart contracts
• Backtesting engine for trading strategies
• Real-time crypto analytics dashboard
• Portfolio tracking and automation system
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🛠 Technical Stack
Crypto Trading Bots • Algorithmic Trading • Arbitrage Bots • Trading Automation •
Python • FastAPI • AsyncIO • WebSockets • REST APIs • ccxt • Web3.py • ethers.js • Solidity •
Binance API • Bybit API • OKX API • Coinbase API • Exchange Integrations •
Uniswap • DEX Trading • On-Chain Trading • EVM • DeFi Protocols • Liquidity Pools •
PostgreSQL • Redis • Docker • AWS • GCP • CI/CD • Event-Driven Architecture • Low-Latency Systems
$30/hr
100%
Job Success
$50K+ earned
Available now
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Hi,
My Name is Durga Parsad and I am an expert Web, Desktop, and mobile developer working on CryptoCurrencies trading sites and I myself is a good crypto trader at Poloniex and Binance so I have great knowledge of this business.
I have full knowledge of Crypto market. I can develop the following type of site for you:
-Wallet website for any single or multiple currencies with native nodes or 3rd party API
-Crypto to crypto advance exchange website with node wallets and high-level security
-Simple exchange for local users so they can buy CryptoCurrencies with local currency or credit card
-Coin swap exchanges like Shapeshift and Changelly
-CryptoCurrencies info website like rates conversion, charts, market value etc
-All types of relevant mobile wallet applications for IOS, Android and Window Phone
-Web API's for developers
-Window-based software
I will also help you to learn about this market like how to trade or how to start your business for this market.
Feel free to ask if you have any queries.
Associated with
iTechnoLabs
$50/hr
81%
Job Success
$100K+ earned
Available now
Offers consultations
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𝐌𝐨𝐬𝐭 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬𝐞𝐬 𝐝𝐨𝐧'𝐭 𝐧𝐞𝐞𝐝 𝐚𝐧𝐨𝐭𝐡𝐞𝐫 𝐀𝐈 𝐜𝐡𝐚𝐭𝐛𝐨𝐭.
They need AI systems that solve real business problems, automate operations, and generate measurable ROI.
Over the last 15+ years, I've worked as a Senior Solution Architect and CTO, helping start-ups and enterprises design and build scalable software products. My expertise started with Blockchain/Web3 architecture, where I delivered secure, enterprise-grade decentralized applications and digital asset platforms.
As Generative AI transformed the industry, I expanded my focus toward building production-ready AI solutions that integrate seamlessly with existing business processes.
𝐓𝐨𝐝𝐚𝐲, 𝐈 𝐡𝐞𝐥𝐩 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬𝐞𝐬 𝐫𝐞𝐝𝐮𝐜𝐞 𝐨𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐜𝐨𝐬𝐭𝐬, 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐞 𝐫𝐞𝐩𝐞𝐭𝐢𝐭𝐢𝐯𝐞 𝐰𝐨𝐫𝐤𝐟𝐥𝐨𝐰𝐬, 𝐚𝐧𝐝 𝐝𝐞𝐩𝐥𝐨𝐲 𝐀𝐈 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐝𝐞𝐥𝐢𝐯𝐞𝐫 𝐦𝐞𝐚𝐬𝐮𝐫𝐚𝐛𝐥𝐞 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐯𝐚𝐥𝐮𝐞.
✔ AI Agents & Agentic AI Systems
✔ RAG (Retrieval-Augmented Generation) Applications
✔ Custom LLM-powered Solutions (OpenAI, Claude, Gemini, Llama)
✔ MCP (Model Context Protocol) Integrations
✔ AI Workflow Automation
✔ AI Copilots & Enterprise Assistants
✔ Multi-Agent Systems
✔ Vector Database & Knowledge Base Solutions
✔ AI + Blockchain Integrated Platforms
✔ Blockchain Architecture & Smart Contract Solutions
𝐌𝐲 𝐞𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐬:
🔹 AI Consulting & Solution Architecture
🔹 Agentic AI Development
🔹 AI Workflow Automation
🔹 Retrieval-Augmented Generation (RAG)
🔹 Prompt Engineering & Context Engineering
🔹 LLM Integration & Fine-Tuning Strategies
🔹 Multi-Agent Architecture Design
🔹 MCP Server Development & AI Tool Integration
🔹 Vector Databases (Pinecone, Weaviate, Qdrant, ChromaDB, Milvus)
🔹 LangChain, LangGraph, LlamaIndex & CrewAI
🔹 Blockchain Architecture (Ethereum, Polygon, Hyperledger, Solana)
🔹 Smart Contracts & Web3 Development
🔹 Cloud Architecture (AWS, Azure, GCP)
𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞:
✅ Business-first approach, not just technology implementation
✅ Strong experience in Solution Architecture and CTO-level consulting
✅ Ability to design scalable, enterprise-grade systems
✅ Focus on measurable outcomes and ROI
✅ Expertise across AI, Automation, Cloud, and Blockchain technologies
✅ End-to-end ownership from strategy and architecture to deployment
𝐈 𝐟𝐨𝐜𝐮𝐬 𝐨𝐧 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐫𝐞𝐚𝐝𝐲 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬—𝐧𝐨𝐭 𝐝𝐞𝐦𝐨𝐬 𝐨𝐫 𝐩𝐫𝐨𝐭𝐨𝐭𝐲𝐩𝐞𝐬.
Whether you're building an AI startup, modernizing enterprise workflows, developing intelligent agents, implementing RAG, integrating LLMs, or creating blockchain-powered platforms, I can help you architect and deliver solutions that are secure, scalable, and built for long-term success.
If you're looking for an experienced AI Consultant and Solution Architect who can design, build, and deploy production-ready AI systems—not just prototypes. I'd be happy to discuss your project.
Let's build AI that delivers measurable business results.
Iqbal S.
has worked
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$12.5/hr
100%
Job Success
$60K+ earned
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I’ve been writing code long enough to remember when BASIC felt like magic and when a “debugger” was mostly your own frustration.
Across four decades, tech has changed faster than hairstyles, but I’ve happily kept both up to date.
My coding journey, decade by decade:
- 1980s: BASIC (my first love ❤️) and a bit of C - when computers were loud, slow, and beautiful
- 1990s: Pascal, Cobol, C++ - the era of serious programming and questionable UI design
- 2000s: PHP + MySQL - building the early web one spaghetti script at a time
- 2010s: Java and JavaScript - enterprise on one side, wild west on the other
- 2020s: Node.js, React, Solidity, Python — AI, blockchain, automations, and everything in between
Along the way, I realized I don’t just like building software, I like building teams, systems, and processes that actually work.
So I spent the last years mixing:
- Project & Product Management across IT and SaaS
- International Development projects (where "deadline flexibility" is a lifestyle)
- Banking & fintech (where deadlines stop being flexible)
- Academia, mentoring, research and development
And yes… the real mining industry - not crypto mining, actual mining with rocks, helmets, and very serious engineers...
Today I’m a hybrid:
🔧 Engineer by instinct
📊 Product/Project Lead by experience
🌍 International collaborator by habit
🤖 Automation & AI enthusiast by passion
If it involves solving problems, building something new, or turning chaos into a process - I’m probably interested.
$65/hr
69%
Job Success
$9K+ earned
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Currently team lead on several blockchain project, i'm always on the look for new innovative Web3 solution.