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$20/hr
100% Job Success
$100K+ earned
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Rehman A. has worked .
I build production-ready AI and Blockchain solutions that automate business operations, power intelligent applications, and create secure decentralized systems. My focus is on delivering scalable software that businesses rely on every day.
I've helped companies across Healthcare, FinTech, Legal, SaaS, E-commerce, Hospitality, Manufacturing, Logistics, Real Estate, Enterprise Software, and Web3 integrate AI and blockchain technologies into their products and operations.
Recent AI Solutions
🧠 Multi-Agent AI Platforms
Build intelligent AI agents that collaborate to automate complex business workflows.
📄 AI Document Intelligence & OCR
Extract, classify, and analyze documents using OCR, LLMs, and workflow automation.
🤖 Enterprise RAG Knowledge Assistants
Develop AI assistants that provide accurate, context-aware answers from company knowledge bases.
🎙️ Voice AI & Conversational Agents
Create natural voice and chat experiences for customer support, sales, and internal operations.
📈 AI Automation & SaaS Solutions
Build AI-powered SaaS platforms, CRM automation, workflow automation, and custom LLM applications.
Recent Blockchain Solutions
⛓️ Smart Contract Development
Develop secure and optimized smart contracts for Ethereum and EVM-compatible networks.
💰 DeFi Applications
Build staking, lending, swapping, yield farming, and token management platforms.
🪙 Token Development & Launches
Create ERC-20, ERC-721, ERC-1155, and custom token ecosystems with secure tokenomics.
🌉 Web3 & Wallet Integrations
Integrate MetaMask, WalletConnect, Coinbase Wallet, and Web3 authentication into web applications.
🏦 NFT Marketplaces & dApps
Develop decentralized applications, NFT platforms, DAO tools, crypto payment systems, and blockchain-based business solutions.
Industries I Serve
🏥 Healthcare & Life Sciences – AI assistants, medical automation, OCR, patient engagement, and secure workflows.
⚖️ Legal & Enterprise SaaS – AI knowledge assistants, document automation, workflow automation, and business intelligence.
🛍️ Retail, Hospitality & Logistics – AI customer support, automation, scheduling, CRM, inventory, and operational AI.
💳 FinTech & Insurance – AI-powered financial automation, payment workflows, compliance systems, and intelligent document processing.
⛓️ Blockchain & Web3 – Smart contracts, DeFi platforms, NFT marketplaces, DAOs, wallet integrations, crypto payments, and decentralized applications.
Core Technologies
AI & LLMs: OpenAI, Claude, Gemini, LangChain, LangGraph, CrewAI, AutoGen, LlamaIndex, Google ADK, AWS Bedrock, MCP
Automation: n8n, Make, Zapier, GitHub Actions
OCR & RAG: Pinecone, Weaviate, Qdrant, ChromaDB, FAISS, AWS Textract, Google Document AI, Azure Document Intelligence
Backend: Python, FastAPI, Django, Node.js, NestJS, PostgreSQL, MongoDB, Docker, Kubernetes
Frontend: React, Next.js, TypeScript
Cloud: AWS, Azure, Google Cloud
Blockchain: Solidity, Ethereum, Base, Polygon, BNB Chain, Arbitrum, Optimism, Web3.js, Ethers.js, Hardhat, Foundry, OpenZeppelin
I Can Help You Build
✅ AI Agents & Multi-Agent Systems
✅ Enterprise RAG Applications
✅ AI SaaS Products
✅ Workflow Automation
✅ Voice AI Applications
✅ Smart Contracts
✅ DeFi Platforms
✅ NFT Marketplaces
✅ Web3 dApps
✅ Token Launches
✅ Crypto Payment Solutions
✅ AI + Blockchain Applications
Why Clients Hire Me
✔ Production-ready AI and Blockchain development
✔ Secure, scalable software architecture
✔ Strong engineering across Web2 and Web3
✔ Clean, maintainable code
✔ Business-focused solutions with measurable ROI
Whether you're building an AI-powered platform, launching a Web3 product, developing smart contracts, or combining AI with blockchain, I can help turn your idea into a production-ready solution.
Associated with
Vaival Technologies
$200K+
earned
$25/hr
96% Job Success
$20K+ earned
Offers consultations
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Ramsey M. has worked .
Hello! I'm Ramsey, a passionate software engineer specializing in blockchain, web and desktop application development. I excel in crafting smart contracts, DApps, tokens (ERC-20, BEP-20, NFTs), and integrating blockchain systems. Skilled in modern frameworks like React, Next.js, and Angular, I also bring backend expertise with Python, Node.js, and PHP to help create secure, scalable web solutions. For desktop apps, I use PyQt, C#, or JavaFX to deliver custom, multi-platform support. I also have strong expertise in AI related work including chatbots, recommendation systems, NLP, CV, and OpenAI API integrations.
I have a very detail-oriented, problem-solving approach, strong communication, and timely delivery, I’m ready to bring your ideas to life. Let’s build together!
$70/hr
100% Job Success
$200K+ earned
Available now
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I build production systems that hold up under real load: AI agents shipped to production, blockchain infra securing $6B+, and low-latency Rust services.
Recent work:
Agentic AI backend for a music-industry SaaS — LLM-powered analytics and automated workflows over production data
15x LLM inference speedup — 35B-param MoE model at 12 tok/s on consumer Apple Silicon (C/Metal)
CDN built from scratch: Rust edge proxies (Pingora), NATS JetStream, Redis, authoritative DNS, bare-metal IaC
Cross-chain bridging infrastructure enabling $6B in capital access
Code merged into go-ethereum, Firedancer, and Yellowstone; performance work on Reth
What I take on:
🔹 AI engineering — agentic workflows, LLM integration, RAG, MCP servers, inference optimization (Metal/CUDA)
🔹 Backend & distributed systems — Rust, Go, Python · gRPC, WebSockets, Kafka · real-time event-driven pipelines
🔹 Blockchain — Solana (Anchor, native) + EVM (Solidity, Foundry) · protocols, indexers, trading infra
🔹 Full-stack delivery — React/Svelte/Next.js · AWS, Terraform, Docker · Grafana/Prometheus
8+ years, senior roles across infra and DeFi. High ownership, clear communication, tested code, architecture that won't need a rewrite in six months.
$25/hr
$7K+ earned
Offers consultations
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I don't just write code, I ship systems that run without me watching them. AI agents that work 24/7, smart contracts holding real funds, scrapers that survive anti-bot detection. If it's live and it matters, there's a good chance I've built something like it.
🤖 AI & Automation, in production right now:
+ LinkedIn outreach engine: 100+ connections/day across 50 concurrent accounts, zero manual touch
+ RAG agent (LangChain + pgvector) for internal knowledge querying
+ Content pipeline: LLM generation, Telegram human approval, auto-publish to LinkedIn
+ Lead scraper with anti-bot evasion at scale, structured export to outreach tools
+ AI video pipeline: auto-transcription, highlight detection, clip generation, cut editing time by ~80%
+ DevEx agent that maps GitHub issues to source files automatically using embeddings
⛓ Blockchain, audited and live:
+ spl-simplified: my open-source Rust crate for SPL tokens, 15,000+ downloads on crates io
+ Factory-pattern smart contracts, cut deployment time by 40%
+ Transaction listener systems, improved throughput by 50%
+ Privacy infrastructure: burner wallets, cross-chain asset routing, ZK proofs in production
+ Token launchpad with bonding curve mechanics and automated liquidity migration
+ 10+ projects: ICO platforms, NFT ticketing, DeFi protocols, referral/reward systems
📄 Also a published researcher, 2 peer-reviewed papers on blockchain systems (Elsevier, IEEE), so this isn't guesswork, it's grounded in how these systems actually work under the hood.
🛠 Stack: n8n, LangChain, LangGraph, OpenAI/Gemini/Ollama, FastAPI, PostgreSQL/Supabase | Rust, Anchor, Solidity, Hardhat, Foundry | Solana, Ethereum, BSC, Polygon, Avalanche
Got a manual process bleeding hours, or a contract that needs to be bulletproof before main net?
Send me the details, I'll tell you honestly if I'm the right fit.
$40/hr
100% Job Success
$200K+ earned
Available now
Offers consultations
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Vladyslav K. has worked .
Is your blockchain product ready for real users, or is it a prototype that breaks under live transactions? Most Web3 projects fail at the boundaries between smart contracts, wallets, trading operations, and backend systems.
🏆 20+ years architecting production systems at principal engineer level
📊 $200K+ earned on Upwork across 32 architecture projects
🎯 100% Job Success Score, Top Rated Plus on Upwork
⚡ 11 years architecting Fintech / Trading / Accounting solutions
⚡ 8 years architecting blockchain products across Bitcoin, EVM, Solana ecosystems
💼 CEO at Osambit, a 20-person engineering team
✅ Enterprise Blockchain Architect certified, former Sr Principal Engineer at Nordstrom
⭐⭐⭐⭐⭐ "We've had the opportunity to collaborate with the Osambit team, and it's been a great experience. They're highly professional, responsive, and truly understand the final goal. Their technical expertise and ability to deliver on time have been key to the success." (Alwyn V., IXO World)
As a Blockchain Architect with 20+ years of production engineering experience and two years focused on Web3, I design blockchain and fintech products that operate reliably beyond a demo. I work across Solana and EVM networks—including Ethereum, Polygon, Base, BSC, and Arbitrum—as well as enterprise platforms such as Hyperledger Fabric and Besu. My work connects secure smart-contract, wallet, payment, and remittance flows with the backend systems, operational controls, and user experiences a real product needs. Every engagement starts with architecture: chain selection, custody and transaction boundaries, compliance-aware workflows, failure modes, scalability, and security. That architecture-first approach helps blockchain and neobanking products withstand live usage, not just testnet scenarios.
🔶 Centralized exchange: architecture for trading operations, wallet flows, and reliable backend integration
🔶 Custodial wallets: secure custody, transaction handling, and multi-wallet platform architecture
🔶 Trading automation system: real-time blockchain-integrated trading workflows with operational safeguards
🔶 Liquidity automation system: DeFi and liquidity-management automation across Solana and EVM ecosystems
🔶 Fintech, neobanking & remittance apps: payment, account, wallet, and cross-border transfer architecture
🔶 Bitcoin mining facility control panel: operational dashboard and control-system architecture for mining infrastructure
🔶 Blockchain-integrated game: NFT features, token and wallet integrations, and production-ready game backend design
🔶 Enterprise blockchain solutions: permissioned-network architecture and public-chain integrations using Hyperledger Fabric or Besu
🔶 Nordstrom (Sr Principal Engineer, 5 years): architected 9+ enterprise systems | led 10 offshore engineering teams | supply chain, payment, logistics domains
WHAT I DO
✅ Blockchain Architecture: chain selection, system design, security boundaries, and production rollout planning
✅ Solana Development: Rust programs, SPL standards, RPC integrations, and high-throughput DeFi systems
✅ EVM & Smart Contracts: Solidity development and integrations for Ethereum, Polygon, Base, BSC, and Arbitrum
✅ Wallet & Custody Systems: custodial wallet architecture, secure transaction handling, and multi-wallet integrations
✅ Fintech, Neobanking & Remittance: payment flows, account and wallet systems, cross-border transfers, and operational controls
✅ DeFi, Trading & Liquidity Automation: trading workflows, liquidity systems, DEX integrations, and operational controls
✅ NFT & Tokenized Products: NFT minting, metadata, marketplace and royalty logic, and blockchain-integrated game features
✅ Enterprise Blockchain: Hyperledger Fabric and Besu solutions, permissioned-network architecture, and API or oracle integrations
✅ Full-Stack Web3 Platforms: React interfaces, Node.js or Python backends, web3 integrations, and real-time transaction services
✅ Production Infrastructure: AWS, Docker, Kubernetes, CI/CD, observability, automated testing, and scalable data systems
WHO I WORK WITH
🎯 B2B and B2C companies building blockchain products, fintech and neobanking apps, exchanges, wallets, DeFi platforms, or games
🎯 Founders and CTOs who need Web3, payment, or remittance systems running in production with real users and real assets
🎯 Teams with multi-week engagements (4+ weeks minimum), not 5-minute tasks
🎯 Companies that understand blockchain architecture is a system design and security problem, not just a smart-contract problem
🎯 Clients who value senior engineering judgment over the cheapest hourly rate
MY PROCESS
1️⃣ Architecture Review: 24-hour turnaround on an initial system map, risk review, and scope estimate for your blockchain or fintech product. Close collaboration with business and deep domain immersion.
2️⃣ Design: chain selection, smart-contract, wallet, payment, and remittance boundaries, backend integration, and security plan
3️⃣ Build: production blockchain or fintech
Associated with
Osambit
$200K+
earned
$30/hr
100% Job Success
$20K+ earned
Available now
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Omer A. has worked .
Senior Full Stack & Blockchain Engineer with 15+ years of software development experience and 7+ years building blockchain products, dApps, smart contracts, APIs, and scalable systems.
I help startups and SaaS teams build complete products — not just isolated features. That means I can own the full technical flow from frontend and backend to cloud infrastructure, blockchain integration, smart contracts, and production deployment.
Most Web3 products need more than a smart contract. They need reliable APIs, clean databases, secure integrations, responsive interfaces, cloud deployment, and architecture that can scale after launch. That is where my full-stack background becomes valuable.
I’ve delivered software for startups and enterprise teams, including projects associated with schoolOS, NFL Rivals, TMZ, DirecTV, TSR, Geeked Out Basketball and Coke Studio.
What I can help you build:
• Full-stack SaaS platforms
• Web3 applications and dApps
• Smart contracts using Solidity and Rust
• DeFi, NFT, token, and wallet-based systems
• Scalable backend APIs using Node.js
• REST and GraphQL API development
• React and Next.js web applications
• Cloud-based architecture and deployment
• MVPs from idea to production
• Existing product rebuilds, upgrades, and scaling
Why clients work with me:
✔ 15+ years in software development
✔ 7+ years in blockchain and Web3
✔ Strong full-stack experience since 2009
✔ Backend-first thinking with product-level ownership
✔ Ability to connect Web2 systems with Web3 infrastructure
✔ Clean code, clear communication, and milestone-based delivery
✔ Long-term support after launch
✔ Comfortable with Jira, Trello, Asana, Slack, Teams, Clickup, Basecamp, GitHub Projects, GitLab, Azure DevOps, and milestone-based delivery
Core technologies:
Core Technologies:
Backend & APIs: Node.js, Express.js, REST APIs, GraphQL, Microservices, WebSockets, API Integrations
Frontend & Full Stack: React, Next.js, JavaScript, TypeScript, SaaS Platforms, Admin Dashboards, Web Applications
Blockchain & Web3: Solidity, Rust, Smart Contracts, dApps, DeFi, NFTs, Token Systems, Wallet Integrations, Web3.js, Ethers.js
Cloud & DevOps: AWS, EC2, S3, Lambda, RDS, CloudFront, Route 53, IAM, Docker, CI/CD, Server Deployment, Cloud Architecture, Scalable Infrastructure
Databases: PostgreSQL, MongoDB, MySQL, Firebase, Database Design, Query Optimization
Product Delivery: MVP Development, System Architecture, Production Deployment, Performance Optimization, Long-Term Maintenance
Whether you are building a SaaS platform, launching a dApp, creating a smart contract system, or scaling an existing product, I can help you move from idea to production with reliable engineering and clear execution.
Send me a message and let’s discuss what you’re building.
Associated with
Axis Cyber Technologies
$10K+
earned
$18/hr
100% Job Success
$1K+ earned
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Abdul Q. has worked .
If you need someone who can take a Web3 product from "we have an idea" to "it's live and handling real money on-chain," that's what I do. I'm a blockchain and backend engineer with almost six years in crypto — right now running backend for a P2P crypto trading platform and leading engineering for a Solana-based AI agent marketplace, at the same time, for two different companies.
Most of my work lives at the point where application code meets the chain: on-chain escrow and settlement, ERC-4337 account abstraction (so your users don't need to hold gas or manage keys), 0x Protocol swap routing, custom relayers, and on-chain indexing so your app reads clean data instead of hammering an RPC endpoint. I've shipped this across Ethereum, Polygon, Arbitrum, Base, Optimism and Solana, and before that spent close to two years deep in zero-knowledge work — building a ZK-compression SDK for Solana and architecting a Circom tooling framework from scratch.
Underneath all of that is solid backend engineering: microservice architectures built with TypeScript and NestJS, REST and GraphQL APIs, event-driven services, and data layers on PostgreSQL and Redis, deployed on AWS with proper CI/CD, monitoring and error handling. So if your project is a straightforward backend build with no chain involved, I can do that too — but where I add the most value is when the two need to work together.
What I can help you build:
- Smart contract backend integration — escrow, settlement, trade state machines synced against on-chain events
- Account abstraction (ERC-4337) — gasless, wallet-abstracted transaction flows
- DEX and swap infrastructure — limit orders, TWAP execution, quote/routing integrations
- On-chain indexing — Substreams-based pipelines instead of RPC polling
- Zero-knowledge tooling — Circom, zkSNARKs
- Backend systems — TypeScript/NestJS, REST/GraphQL APIs, microservices, event-driven architecture, PostgreSQL/Redis, AWS deployment and CI/CD
I work best with teams that want an engineer who can own a piece of the system end to end — not just write the ticket in front of them, but think about the state machine, the failure modes, and what happens when the chain and the database disagree. I communicate early and often, flag risk before it becomes a fire, and I'm used to working async across time zones (currently juggling teams in Canada and Dubai).
If your project involves smart contracts talking to a real backend — escrow, swaps, account abstraction, indexing, or general Web3 infrastructure — I'd like to hear what you're building.
$30/hr
100% Job Success
$20K+ earned
Available now
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Naveed M. has worked .
Senior AI Engineer with $30K+ earned on Upwork, 700+ hours, and 15+ successful projects building production software for startups and enterprises.
I specialize in building AI Agents, Voice AI systems, MCP servers, RAG applications, and workflow automations that integrate with CRMs, APIs, and business platforms alongside secure blockchain and Web3 systems.
I've built solutions including AI Sales & Customer Support Agents, Voice AI Receptionists, AI Research Assistants, RAG-powered knowledge bases, MCP servers, intelligent workflow automations, as well as DeFi protocols, smart contracts, and tokenization platforms using OpenAI, Claude, LangGraph, n8n, and modern cloud + blockchain infrastructure.
From architecture and development to deployment, I build scalable AI and blockchain solutions that help businesses automate operations, reduce costs, and launch faster.
🚀 What I Do
I design and deliver production-ready systems from AI agents and Voice AI to RAG applications, blockchain platforms, workflow automation, and AI-powered web & mobile applications.
🤖 AI Agents & Automation
AI Sales, Customer Support & Research Agents
Multi-Agent Systems (LangGraph, LangChain, CrewAI, AutoGen)
AI Assistants & Human-in-the-Loop Workflows
🎙 Voice AI
AI Receptionists & Call Agents
Inbound & Outbound Voice Automation
CRM Integration, Transcription & Analytics
Platforms: Vapi, Retell AI, ElevenLabs, Deepgram, Twilio
🔥 MCP, RAG & LLM Solutions
Custom MCP Servers
OpenAI, Claude & Gemini Integrations
RAG Applications & Vector Databases
Tool Calling & Enterprise AI Systems
🔄 Workflow Automation
n8n, Make, Zapier & Power Automate
API Integrations & ETL Pipelines
CRM, ERP & Business Process Automation
🔗 Blockchain & Web3
Smart Contracts (Solidity, EVM, Solana)
DeFi Protocols, Tokenomics, Staking
NFT & Tokenization Platforms (RWA)
DAO Governance Systems
Secure, audit-ready contract architecture
🔗 CRM & ERP Integration
Salesforce, HubSpot, GoHighLevel, Zoho, Monday
NetSuite, SAP, QuickBooks, Stripe & Custom APIs
💻 Full-Stack Development
AI-Powered Web Applications (React, Next.js, Python, Node.js)
Mobile Apps (React Native, Flutter)
FastAPI, Django, PostgreSQL, MongoDB & Redis
💡 Why Work With Me
Top-rated AI Engineer mindset
$30K+ Earned • Strong client satisfaction
End-to-End AI, Blockchain & Full-Stack Development
Production-ready, scalable systems
Clear communication & reliable delivery
I don’t build demos I build AI and blockchain systems that actually run in production.
$18/hr
100% Job Success
$100K+ earned
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Jaskaran S. has worked .
I'm a Full-stack Blockchain and Smart Contract Developer with 9+ years of experience building secure, scalable, and innovative Web3 products from DeFi platforms and DAOs to crypto exchanges and ZK integrations using Python and GoLang. I combine hands-on development with real-world insight as an active crypto trader on platforms like Binance and Poloniex, bringing a deep understanding of both blockchain technology and market dynamics.
🔐 Smart Contract Development & Auditing (EVM, Solana, ZK):
▪ EVM-compatible chains: Ethereum, Arbitrum, Optimism, Base, BNB Chain, Polygon
▪ Solana: Rust, Anchor, SPL tokens, Phantom wallet integration
▪ Token standards: ERC-20, ERC-721, ERC-1155, SPL
▪ Back-End Development: Node.js, Python, Nest.js, MySQL, RESTful APIs, GraphQL, and server-side integration
▪ Front-End Development: React.js, Next.js, Vue.js, Nuxt.js, HTML5, CSS3, and JavaScript (ES6+)
Database Management: SQL, MySQL, PostgreSQL, MongoDB
🏗️ Blockchain Product Development:
▪ DApps for DeFi, NFTs, DAOs, DePIN, and enterprise use cases (logistics, healthcare, insurance, banking)
▪ Full-stack dApp development: Python, Golang, React.js, Next.js, Tailwind, TypeScript
▪ Web3 integrations: ethers.js, web3.js, viem, wagmi, RainbowKit
▪ Protocols & tools: IPFS, The Graph, Chainlink, Pyth
📈 Crypto Platforms & Trading Systems:
▪ Multi-currency wallets (hot/cold) using native nodes or APIs (Coinbase, Fireblocks, BlockCypher)
▪ Crypto exchanges with real-time trading, KYC/AML, order books, and secure Web3 integration
▪ Fiat-to-crypto gateways with Stripe, PayPal, and credit card support
▪ Swap services via DEX APIs (e.g., ShapeShift, Changelly)
▪ Market tracking platforms with live charts and portfolio tools
▪ Mobile crypto wallets: Flutter, React Native, Swift, Kotlin
▪ RESTful APIs & WebSocket services for external integrations
▪ Cross-platform desktop apps for Windows/macOS/Linux
AI Automation Tool:
Claude, Make, n8n
🧠 Leadership & Consulting:
Sprint planning, technical documentation, and developer onboarding
Code reviews, PR management, and mentoring junior engineers
Tools: GitHub, JIRA, Trello, Slack, Notion
Whether you're launching a new dApp, building a trading platform, or need a smart contract audit. I deliver clarity, security, and execution to turn ideas into reliable Web3 products.
Associated with
Seasia Labs Private Limited
$6M+
earned
$30/hr
100% Job Success
$10K+ earned
Available now
Offers consultations
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Anjanay R. has worked .
Senior Blockchain Architect | Smart Contract Security Researcher | Full-Stack Web3 Engineer
Web3 Security Expert | High-Performance Backend Architect | Top-Rated Developer | 100% Commitment to Protocol Safety
👨💻 About Me
I am a Senior Blockchain Engineer and Web3 Security Researcher with 3+ years of experience specializing in architecting high-performance, fault-tolerant decentralized systems. I bridge the gap between secure on-chain logic and institutional-grade backend infrastructure.
I don’t just write smart contracts—I engineer systems for peak performance and military-grade security. Whether it is auditing high-value DeFi protocols or architecting microservices for NatWest Group, my work translates to measurable improvements in system safety, gas efficiency, and throughput.
➡ Why Clients Hire Me
• Proven Security Track Record: Identified 20+ critical vulnerabilities in production-grade protocols. Ranked Weekly #347 on Code4rena and #856 on Sherlock global leaderboards.
• Institutional-Grade Engineering: Currently architecting microservices from scratch at NatWest Group, owning the complete lifecycle from design to cloud deployment.
• Gas & Performance Mastery: Engineered gas optimizations that reduced execution costs by up to 60%. Boosted backend system throughput by 200% using advanced concurrency models.
• Academic & Research Authority: IEEE-published author on blockchain architecture, achieving a 100x faster resolution time compared to traditional systems.
• Mainnet Success: Successfully launched Middle Earth AI on Solana Mainnet, securing over $100K in TVL with 500+ active players.
➡ My Services
1️⃣ Smart Contract Auditing & Security Analysis
Comprehensive audits for Solidity and Rust (Anchor) codebases. I identify reentrancy, complex logic errors, and economic exploits using Foundry, Hardhat, and custom fuzzing suites.
2️⃣ DeFi & Web3 Protocol Development
End-to-end architecture for token issuance, staking vaults (ERC-4626), reward distribution, and Merkle-based airdrops. Expert in gas-optimized DeFi primitives and account abstraction (ERC-4337).
3️⃣ High-Performance Backend & API Engineering
Building resilient microservices using Python (FastAPI) and Go to bridge off-chain workflows with on-chain data. Specializing in high-volume data ingestion and 3x API latency reduction.
4️⃣ Full-Stack DApp Integration
Seamless integration of secure contracts with responsive React/Next.js frontends using Ethers.js and Web3.js for a cohesive user experience.
➡ Tech Stack Expertise
🧠 AI & Agentic Development:
• LLMs & Interfaces: Gemini 1.5 Pro, ChatGPT (GPT-4o), Claude 3.5 Sonnet, OpenRouter.
• Agentic Tools: AntiGravity, OpenClaw, LangChain, LlamaIndex, AutoGPT.
• AI Dev Environment: Cursor, GitHub Copilot, Ghostwriter.
• AI Infrastructure: Vector Databases (Pinecone, Weaviate, Milvus), OpenAI API, Anthropic API.
⚙️ Backend & Systems:
• Languages: Solidity, Yul, Rust, Python, Go, Java, SQL, C++, TypeScript.
• Frameworks: FastAPI, Django, Flask, Spring Boot, gRPC, Protobuf, Node.js.
• Performance: Celery, Redis, RabbitMQ, Kafka, Multithreading/Concurrency.
⛓️ Blockchain & Security:
• Security Tools: Foundry, Hardhat, Slither, Echidna, Mythril, Surya, SolidityScan, Manticore.
• Frameworks & Libraries: Anchor (Solana), OpenZeppelin, Ethers.js, Web3.js, Web3.py, Tenderly.
• Standards: ERC-20, ERC-721, ERC-1155, ERC-4626 (Vaults), ERC-4337 (AA), ERC-6551.
🌐 Frontend & UI:
• React.js, Next.js, Redux, Tailwind CSS, Shadcn/UI, Framer Motion, Three.js.
📊 Data, Cloud & DevOps:
• Databases: PostgreSQL, MongoDB, MySQL, OracleDB, Cassandra, Elasticsearch.
• Infrastructure: Docker, Kubernetes, Terraform, Ansible, CI/CD (GitHub Actions, Jenkins).
• Cloud Platforms: Google Cloud (GCP), AWS, Azure, Vercel, Render.
Your protocol doesn’t just need to work—it needs to be invulnerable.
Let's schedule a quick 10-minute strategy call to discuss your technical roadmap and how I can help you achieve a secure, gas-efficient, and production-ready application.
🔑 Keywords
Blockchain Developer | Senior Blockchain Engineer | Smart Contract Auditor | Web3 Security Researcher | Solidity Expert | Rust Anchor Developer | DeFi Architect | Smart Contract Security | Ethereum Developer | Solana Developer | FastAPI Developer | Backend Architect | Gas Optimization Expert | ERC-4626 | Account Abstraction | Code4rena Auditor | Sherlock Auditor | Microservices Engineer | System Design Expert | Performance Tuning