Rust Blockchain Infrastructure & Distributed Systems Engineer | Solana • Move VM • High-Performance Backends I build production-grade Rust backend infrastructure that powers blockchain protocols, RPC services, data pipelines, and distributed systems. My code doesn’t just “work” — it is correct, observable, fault-tolerant, and built to survive real-world load. If you need a Rust engineer who understands systems, protocols, reliability, and scale (not just feature coding), I design infrastructure that future teams can maintain with confidence. What I Do I specialize in blockchain infrastructure and backend engineering: • Distributed systems & high-throughput backends (Rust) • RPC / JSON-RPC / gRPC servers for blockchain nodes & validators • Durable execution engines, intent pipelines & submission systems (Solana) • Move VM runtime & smart contract execution layers • Async message brokers & event pipelines (Kafka, NATS, Redis Streams) • On-chain data ingestion, indexing & wallet analytics pipelines • Observability, structured logging, tracing & fault-tolerance • Performance optimization, memory profiling & horizontal scaling • Internal protocols, serialization & deterministic execution I actively build and maintain open-source Rust projects focused on durable execution, high-performance RPC services, transaction security, and blockchain data pipelines. Engineering Values Most engineers focus on features. I focus on systems that survive real-world load. That means: ✔ Clear boundaries & clean interfaces ✔ Deterministic, predictable behavior ✔ Structured error handling & recovery paths ✔ Observability + metrics + tracing ✔ Performance-aware async design (Tokio/Axum/Tower) ✔ Maintainable code & backwards compatibility My systems are readable, testable, diagnosable, and operable. Typical Projects Clients hire me to: • Build or fix Rust backends for Solana, Move, or multi-chain protocols • Design durable execution platforms and RPC infrastructure • Implement high-throughput data pipelines and indexing services • Add reliability, observability & fault-tolerance to existing systems • Optimize latency, memory usage and throughput • Integrate Kafka/NATS/Redis for blockchain event streaming Good Fit For ✔ Blockchain infrastructure teams, validator operators & DeFi protocols ✔ Companies scaling on-chain data or RPC services ✔ Technical founders who need production-grade Rust systems ✔ Long-term reliability & maintainability, not quick hacks Not a fit for: ✘ Pure frontend or mobile-only work ✘ “Just ship an MVP” projects with no reliability requirements Tech Stack Languages: Rust (primary), TypeScript Rust Ecosystem: tokio, axum, tower, tracing, serde, sqlx, reqwest Blockchain: Solana, Move VM, JSON-RPC, validators & oracles Data & Infra: Postgres, Redis, RocksDB, ClickHouse, Kafka, NATS Tools: Docker, Linux, Nix, CI/CD, AWS, bare metal My Philosophy Production systems must be reliable, understandable, maintainable, observable and upgradeable. I write code that fails loudly and predictably, surfaces metrics, scales horizontally, isolates failures, and treats correctness as a non-negotiable feature.

I help founders and SMB teams turn messy business workflows into working AI automations: LLM agents, RAG/knowledge-base assistants, chatbots, voice agents, document/PDF extraction, and internal AI tools. I can work as both consultant and builder: audit your workflow, design the AI architecture, then implement it in Python/Django/FastAPI with OpenAI, Claude, LangChain/LlamaIndex, vector databases, n8n/Zapier/Make, and your existing APIs. What I build: - AI workflow automation for operations, sales, support, recruiting, and backoffice work - LLM agents and internal assistants connected to your tools, databases, docs, CRM, inbox, or APIs - RAG / knowledge-base chatbots over PDFs, Notion/Google Drive, websites, SOPs, and support docs - AI customer-support and sales chatbots with guardrails, handoff, logging, and analytics - Voice/call-agent prototypes and appointment-setting workflows - Document/PDF/OCR extraction pipelines for invoices, contracts, forms, reports, and spreadsheets - Practical AI consulting: use-case selection, automation roadmap, workflow audit, prompt/system design, and team enablement How I work: 1. Map the real business process and failure points. 2. Identify where AI should help — and where deterministic automation is better. 3. Build the smallest useful system first. 4. Add evaluation, logging, human review, and safeguards so it survives real usage. Good fits: - “We want to automate a manual business process with AI.” - “We need an AI agent/chatbot connected to our data or tools.” - “We have PDFs/docs/emails/spreadsheets and need structured outputs.” - “We need someone to scope our AI roadmap and then actually build it.” - “Our Zapier/n8n/OpenAI prototype works, but it needs to become reliable.” Tech I use: Python, Django, FastAPI, PostgreSQL, SQLite, OpenAI API, Anthropic Claude, Gemini, LangChain, LlamaIndex, RAG, vector databases, embeddings, OCR, Playwright, APIs/webhooks, n8n, Zapier, Make, Docker, Linux. If you want AI that moves a real workflow forward — not just a demo — send me the process you want to improve and I’ll tell you the cleanest implementation path.

I am a lead software engineer working across various tech stacks. My strengths: * Focus on understanding of client's needs. * Hands-on experience building reliable and scalable software. Products I built are affecting thousands of organizations across the world. * Strong technical design skills * Application security * Pro-active communication and transparency My stack: * Backend: Go, .NET or Python/ Rest API, gRPC, GraphQL * Frontend: React, Next.js * SQL (MySql, SQL Server, Postgres) and NoSQL databases (Amazon DynamoDB, MongoDB) * RabbitMQ/Kafka/SQS * Redis * Kubernetes, Docker/Podman, ProxMox, Terraform, Ansible * Gitlab CI/CD, Github Actions

Hi! I'm a Full-Stack Web Engineer with over 6 years of professional experience. I have extensive experience with TypeScript, Node.js, and React. Additionally, I’m actively diving into Rust. Throughout my career, I’ve supported many projects and helped several teams build applications from scratch. I’ve worked across a variety of environments, including startups, mid-sized companies, larger organizations (100+ employees), as well as freelance projects. I can lead application development independently and adapt easily to different team workflows and dynamics. ✅ Here is the approach I developed during my work: I write code that is both easily understandable and performant. I prevent code complexity and keep designs scalable and maintainable. I stay up-to-date with the latest technologies, integrating them into my work to enhance problem-solving and development efficiency. I have developed different types of applications such as real-time chat apps, multi-tenant SaaS apps, and chat bots, as well as worked with smart contracts and web scraping using Puppeteer/Cheerio. I can work with almost anything—if I don’t have experience with a particular technology, it’s not a problem to figure it out quickly. I’m a Linux/Mac user, primarily using Shell and Neovim in my job. I enjoy both for their performance. I am fluent in English, with strong communication skills. I’m actively using AI tools such as Supermaven, Claude Code, Gemini CLI, and chat apps like ChatGPT, Gemini, and DeepSeek. However, I don’t blindly delegate my work to AI—I always double-check every line of generated code. Here are more details about my stack: MacOS; Linux (Debian, Arch) Shell scripting Neovim TypeScript, Node.js, HTML, CSS, and Rust Git Methodologies - SOLID, DRY, KISS REST, WebSockets, GraphQL JavaScript Stack: Node.js, Bun yarn and pnpm ECMAScript 6+ standards TypeScript React, Nextjs, NestJS, Astro, Express, Hono, Prisma Vite, Webpack, Monorepos with yarn or pnpm workspaces and turborepo yup, zod Web Animations API, animejs, react-spring eslint, prettier, biome Jest, Vitest, Cypress React Stack: React Hooks TanStack Query, ky, rtk-query React Router, Tanstack Router Zustand, Jotai, Redux Toolkit react-hook-form react-three-fiber, react-three/drei, react-spring/three Next.js Styles: Tailwind, CSS Modules MySQL, MongoDB, MariaDB, PostgreSQL, CockroachDB, Cassandra, TypeSense, Redis SQL, CQL Experience with CMS: Sanity CMS Rust Stack: Tokio, Tower Axum Tokio Tungstenite Serde, Rmp, Rmp Serde other utility libraries

I build custom trading bots and algorithmic trading systems for crypto, forex, stocks, futures, and options, with automated execution that runs faster, cleaner, and more reliably than what you are running today. 100+ completed projects. $700K+ earned. 100% Job Success. I am Mahbub Shuvo, Founder of Core Devs Ltd. I lead a 35+ person team focused on trading automation, AI powered execution, blockchain infrastructure, and full stack development, trusted by hedge funds, prop trading firms, DeFi protocols, and independent traders worldwide. If your setup is too slow, too rigid, or breaks when markets move, that is exactly what I fix. What I Build: Custom Trading Bots and Algorithmic Trading Systems Execution engines for crypto, forex, stocks, futures, options, and commodities. Sniper bots, arbitrage bots, grid trading, scalping bots, market making engines, copy trading, signal bots, MEV bots, and fully automated strategies. Python, Node.js, Rust, C++, MQL4/MQL5. Sub 300 ms latency. Solana sniper bots, cross exchange crypto arbitrage, futures scalping, and options execution. Broker and Exchange Integrations Direct API integration with Binance, Bybit, KuCoin, Coinbase, Kraken, OKX, MEXC, Hyperliquid, Interactive Brokers (IBKR/TWS), Alpaca, TradeStation, Schwab, OANDA, FXCM, cTrader, DXTrade, Tradovate, and NinjaTrader. REST APIs, WebSocket feeds, and FIX protocol. Low latency order routing, order book parsing, multi broker orchestration, and 24/7 uptime. DEX: Uniswap, Raydium, Jupiter, PumpFun, PancakeSwap, SushiSwap. MetaTrader and Expert Advisor Development Custom EAs for MetaTrader 4 and MetaTrader 5 in MQL4/MQL5. Forex trading bots, scalping EAs, news trading bots, hedging systems, and risk management. MT4 and MT5 bridges to external APIs, copy trading systems, and signal services. Full backtesting, optimization, and deployment. TradingView, PineScript, and Webhook Automation Custom PineScript indicators and strategies, webhook to broker execution pipelines, and alert based trading systems. TradingView signals connected to any broker or exchange, from simple alert forwarding to multi leg strategy automation. AI Enhanced Trading and Quantitative Systems AI signal processing, pattern recognition, sentiment analysis, technical analysis engines, and adaptive execution. Backtesting with PnL analytics, drawdown tracking, and Sharpe optimization using pandas, NumPy, scikit learn, TensorFlow, backtrader, and vectorbt. Predictive ML models and reinforcement learning execution. Systematic trading, mean reversion, momentum, and trend following. I build the system, you keep the alpha. DeFi Automation and Smart Contracts Solidity and Rust contracts for liquidity management, staking, swaps, yield farming, flash loans, and on chain execution. AI assisted monitoring and anomaly detection across Ethereum, Solana, Base, BSC, Polygon, and Arbitrum, from DEX bots to full protocol infrastructure. Telegram Bots, Discord Bots, and Dashboards Telegram trading bots with alerts, one click execution, portfolio tracking, and whale watching. Discord bots with signal forwarding, copy trading, and moderation. Web dashboards with live charts, analytics, and multi exchange views. Tech Stack: Languages: Python, Node.js, Rust, Solidity, JavaScript, TypeScript, MQL4, MQL5, PineScript, C++ Blockchain: Web3.js, Ethers.js, Solana Web3, Anchor, Hardhat, Truffle AI and ML: TensorFlow, PyTorch, scikit learn, pandas, NumPy, OpenAI API, NLP, LLM Trading Platforms: MetaTrader 4, MetaTrader 5, TradingView, Interactive Brokers TWS, QuantConnect, NinjaTrader, TradeStation, Alpaca, cTrader, MultiCharts Exchange APIs: Binance, Bybit, KuCoin, Coinbase, Kraken, OKX, Hyperliquid, IBKR, Alpaca, OANDA, FXCM, Schwab, Uniswap, Raydium, PumpFun, Jupiter, CCXT Backtesting: backtrader, vectorbt, Zipline, QuantConnect LEAN Infrastructure: AWS, Docker, Redis, RabbitMQ, PostgreSQL, MongoDB, WebSockets, Kafka What Clients Hire Me For: Crypto trading bots (sniper, MEV, arbitrage, copy trading, signal bots). Algorithmic trading for forex, stocks, futures, options, and commodities. Expert Advisors for MetaTrader 4 and MetaTrader 5. Interactive Brokers automation and systematic fund execution. TradingView PineScript and webhook automation. AI trading signals, backtesting engines, and quantitative research. DeFi development, smart contract audits, and on chain automation. Multi broker API integration and trading infrastructure. Telegram and Discord bots and trading community tools. Trading dashboards, portfolio trackers, and analytics platforms. Industries: Cryptocurrency and DeFi, Forex and CFD, Equities and Options, Futures and Derivatives, FinTech, Quant Trading, Prop Firms, and Hedge Funds. Clear communication, weekly updates, and long term support. I do not disappear after delivery. Your system keeps running as markets evolve. Ready to automate? Send me a message with your setup and goals, and I will outline a plan on a quick call.

25 projects delivered. 100% Job Success. Code that ships clean and stays secure. I build full stack web applications and blockchain systems from React/Next.js frontends to Solidity smart contracts. Whether you need a production web app, a DeFi platform, or a token launch, I handle architecture, development, and deployment end-to-end. My stack: Solidity, Hardhat, Ethers.js, React, Next.js, Node.js, Laravel, Flutter across Ethereum, BSC, Solana, and Polkadot. I focus on clean architecture, security, and code that works in production not just in dev. Have a project? Message me and I’ll review your requirements for free before we start.

I work with Web3 teams who already have systems running but need experienced hands to get them production-ready Most of my engagements start mid-project. A team has contracts deployed, validators running, or backend services in place, but things break as real usage gets closer. I step in to review what exists, identify technical risks, and improve stability so teams can ship with confidence My background is in high-performance systems and blockchain infrastructure. I have built low-latency trading systems and DeFi tooling in Rust, worked on Cosmos SDK app chains, and developed full stack Web3 applications from smart contracts through to frontend Before blockchain, I spent 8 years building backend and infrastructure systems across fintech, energy, and enterprise environments What I typically help with: - Smart contract development and review in Solidity and Rust - Rust-based backend services, DeFi tooling, and on-chain integrations - Cosmos SDK networks, validators, and IBC - Full stack Web3 applications using Go, TypeScript, Next.js, NestJS - Blockchain indexers, automation, and operational tooling - Production ops, deployment, monitoring, and observability Core stack: Rust, Go, Solidity, TypeScript, Python, Cosmos SDK, Ethereum tooling, Next.js, NestJS, Docker, Kubernetes, Prometheus, Grafana If you have a Web3 system that needs a careful technical review before pushing further, I am happy to discuss

Code should be fast, simple and maintainable! - General Application Development: cross-platform CLIs, native desktop apps and Rust on the web. - Multimedia: ffmpeg mastery, browser based media apps, cross-platform media capture. - WebAssembly: Gain insight and exploit high performance web applications powered by Rust. - Low Level System Development on Linux and Windows: Databases, Daemons, Drivers, etc. - General Purpose GPU Programming: Fast compute shaders, task parallelization and encoders. - Rust Specialist: Macros, compiler tooling, repo architecture, rewrites and ecosystem consultation. - Blockchain: Extensive understanding of Bitcoin Core and Extension BIPs. - Backend Development: Architectures, Security, Deployments, Reliability and Deliverability. - Domain Specific and Custom Programming Languages: Tokenization, Parsing, JIT and Execution. Uses Rust (🦀) professionally and as a hobbyist. Lives and breathes Linux, with an unhealthy understanding of Windows internals. Also dabbles in JavaScript, but prefers the crab.

I built the system UN IFAD uses to track $300M+ in agricultural supply chain value. It won the 2024 World Future Award. Before that, blockchain infrastructure for the DHS Silicon Valley Innovation Program, and CasperSwap DEX, audited by Quantstamp and Halborn. ⚙️ 𝗔𝗜 𝗦𝗬𝗦𝗧𝗘𝗠𝗦 Most AI and blockchain projects fail at the seam between the two. One developer handles AI, another handles blockchain, and nobody owns where they connect. I own the full architecture. On the AI side, I build RAG pipelines, multi-agent systems using LangGraph and CrewAI, LLM orchestration layers, voice AI, and agentic workflow automation using n8n. I have shipped production systems with LangChain, pgvector, Pinecone, Weaviate, OpenAI, and Anthropic SDK. One of them is an AI-powered legal intake system running on WhatsApp via Meta Cloud API and Twilio Voice, built with Claude and Llama 3.3 70B, handling real client conversations at scale. I also build custom AI chatbots, conversational AI systems, AI calling agents, and AI-powered SaaS platforms for healthcare, legal, and enterprise clients, including EHR/EMR integration and appointment booking automation. 🔗 𝗕𝗟𝗢𝗖𝗞𝗖𝗛𝗔𝗜𝗡 𝗦𝗬𝗦𝗧𝗘𝗠𝗦 On the blockchain side, I write smart contracts in Solidity and Rust, deploy across Ethereum, Solana, XRP Ledger, and Casper, and build on Layer 2 networks and Hyperledger Fabric. I have delivered DeFi protocols, DAO governance frameworks, RWA tokenization platforms, NFT development, crypto wallet development, prediction market platforms, and MEV systems. I work with Foundry, Hardhat, Ethers.js, Wagmi, Slither, and The Graph. My smart contract work has been audited by Quantstamp and Halborn. 🛡️ 𝗖𝗢𝗠𝗣𝗟𝗜𝗔𝗡𝗖𝗘 & 𝗗𝗘𝗣𝗟𝗢𝗬𝗠𝗘𝗡𝗧 I also build AI agents and agentic workflow systems that replace manual business processes, API integrations, prompt engineering pipelines, semantic search, and vector database infrastructure. For teams that need on-premise LLM deployment, I use Ollama. For cloud, I deploy on AWS, GCP, and Azure with Docker and CI/CD pipelines. Frontend work is React, Next.js, and TypeScript with FastAPI and NestJS on the backend. Where I work best is at the intersection of AI automation and blockchain verification, inside compliance frameworks including HIPAA, SOC 2, GDPR, and ZATCA. If AI makes the decision, blockchain proves it happened. That is the kind of system regulated industries actually need. Before any engagement I do one scoping call. I will tell you exactly what to build, what not to build, and why. If blockchain or AI does not belong in your project, I will say so. Message me with two lines about your project. I will tell you within 24 hours whether I can help, and how. 🔑 𝗦𝗞𝗜𝗟𝗟𝗦 & 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗜𝗘𝗦 Claude Code, Gemini, Python, Node.js, MCP, Supabase, GitHub Copilot, Cursor, Lovable, Agentic AI, AI Coding Workflow, LLM Integration, Business Process Automation, Telegram Bot Development, Vibe Coding, SaaS Development, Chatbot Development, Production Hardening, Deployment Pipeline, Prototype, AI Operating System, Machine Learning, Layer 2 Development, TON Blockchain, Smart Contract Audit, Blockchain Architect, Web3 Development, MEV Bot, Tokenomics, Testing, AI Full-Stack, AI Systems Architect, Automation Architect, Data Science, Product Engineer, TensorFlow, PyTorch, Scikit-Learn, Cloud Deployment, AI-Generated Code, CV, Real-Time Conversational Systems, Product Development, MVP, AI App Development, Top 1% AI Engineer, Automatic Speech Recognition, Smart Contract Engineer, ERC20, Asset Management System, Solidity Smart Contract Security, Prediction Based Market Platform, Crypto Sniping Bot, Uniswap V2/V3, PancakeSwap, Crypto DeFi Expert, Wallet Intelligence Monitoring, Advanced LMS, Tachograph Compliance Engine, Algorithm Development, Regulatory Compliance, Fractional AI Architect, Applied AI Engineer, Full-Stack SaaS Developer, AI Personal Operating System Developer, AI Solutions Architect, Healthcare SaaS Platform, Agentic AI Architect, Agent Enterprise Ecosystem, Pathwaize Intelligence, Complex System Rebuilt, AI Voice Automation, AI Infrastructure Engineer, LLMOps Engineer, Lead Cryptography & Systems Architect, Multi-Model Workflow, Behavior Analysis & Monitoring Expert, Secure HIPAA Compliant, OpenAI RAG Platform, AI Revenue Systems Builder, Healthcare AI Security Expert, Machine Learning Engineer, AI-Native Software Engineer, AI Pricing Bot Developer, Custom SaaS Platform Development, Vibe Coding Developer, AI Fuel Intelligence, Senior Product Owner/Manager, Startup GenAI SaaS, Healthcare AI Integration Engineer, AI Model Integration, Healthcare Appointment Booking Automation, Healthcare Systems, Solidity contract architecture

Over the past 21+ years I have worked across early web systems, enterprise software, blockchain platforms, and AI. These days I spend most of my time helping founders and product teams figure out what they actually need to build, and then building it with them. I enjoy making complex technology feel straightforward. That is something clients come back for. I have spent 10+ years deep in blockchain and the last few fully focused on AI. I can connect those two worlds in ways most developers cannot. Clients tell me they appreciate that I do not just execute tasks. I ask questions, flag things that have not been considered yet, and keep the bigger picture in view throughout the project. ARTIFICIAL INTELLIGENCE AND GENERATIVE AI • AI Agents and Multi-Agent Systems using LangGraph, CrewAI, and AutoGen for task automation, research, and business process orchestration • RAG pipelines and enterprise knowledge platforms using Pinecone, Weaviate, Qdrant, and ChromaDB • LLM integration across OpenAI, Claude, Gemini, and open-source models into real business workflows • MCP, prompt engineering, context management, and agentic workflow architecture • AI-powered trading platforms with ML signal generation, backtesting, risk management, and live execution • NLP, sentiment analysis, OCR, document intelligence, and intelligent workflow automation • Computer Vision for object detection, video analytics, behavioral analysis, and real-time event detection • Model deployment, inference optimization, evaluation frameworks, and production AI infrastructure • Backend systems for AI using FastAPI, Flask, Django, GoLang, and Rust BLOCKCHAIN AND WEB3 • 10+ years across Ethereum, Solana, Polygon, BSC, Tron, Flow, Hyperledger Fabric, Stellar, TON, Bittensor, and Aptos • End-to-end Web3 platforms including DeFi protocols, NFT marketplaces, custodial and non-custodial wallets, DEXs, and dApps • Smart contracts in Solidity, Rust, and Cadence covering ERC-20, ERC-721, ERC-1155, security reviews, and audits • Token launches including ICO, IDO, and IEO ecosystems, tokenomics design, and exchange integrations • Whitepapers, governance models, and go-to-market strategy for public, private, and consortium networks • Layer 2 scaling, cross-chain bridges, and gas optimization • Full project lifecycle from architecture and security design through to production delivery PROJECT HIGHLIGHTS • Built a multi-agent RAG system for an enterprise client processing 1M+ internal documents, reducing research time by 70 percent • Delivered an LLM-powered support agent using OpenAI and LangGraph handling 10,000+ queries per month with over 90 percent deflection rate • Architected an AI algorithmic trading platform with ML signal generation and live multi-exchange execution • Built an automated crypto trading bot running across Binance, Bybit, and OKX with real-time risk management • Designed and deployed a DeFi lending protocol on Ethereum with 5M+ TVL including liquidation engine and governance • Delivered a supply chain traceability platform on Hyperledger Fabric tracking 500,000+ assets annually • Led end-to-end delivery of multiple NFT marketplace platforms with minting, auction, royalty, and secondary market features • Built a real-time Computer Vision productivity monitoring system deployed across 500+ workstations • Delivered an OCR and NLP document processing pipeline that reduced manual data entry by 85 percent for an insurance client INDUSTRIES SERVED FinTech and Trading | DeFi and Crypto | Enterprise SaaS | Healthcare and MedTech | Supply Chain | Real Estate | E-Commerce | Legal and Compliance | Media Platforms HOW I WORK • I ask a lot of questions upfront, not to slow things down, but because the right questions save weeks later • I am easy to talk to, even on technical topics. Non-technical founders tell me I make things click for them • You will always know where the project stands. I do not go quiet and reappear with a finished build • I have worked with clients across the US, Europe, the Middle East, and Asia. Async communication is second nature to me CORE TECH STACK AI and ML: Python, LangChain, LangGraph, CrewAI, AutoGen, OpenAI, Claude, Gemini, HuggingFace, Pinecone, Weaviate, Qdrant, ChromaDB, FastAPI, Flask, Django Blockchain: Solidity, Rust, Cadence, Web3.js, Ethers.js, Hardhat, Foundry, Anchor, Truffle Backend and Infrastructure: GoLang, Node.js, .NET, Docker, Kubernetes, AWS, GCP, Azure Frontend: React, Next.js, TypeScript If you are not sure exactly what you need yet, that is fine. That is usually where the best conversations start. Send me a message and we will figure it out together.