I am a Cryptocurrency Futures trader with three years of active trading experience purely based on technical analysis, with subtle consideration for significant fundamentals. I have worked my way to consistent profitability through: - Thorough, detailed, and objective scenario planning - Consistent trading edge that can adapt to bull and bear markets - Strict risk management measures to help maximize profits while keeping risks relatively low - Solid foundation on trading psychology - In-depth post-trade journaling and record-keeping I am a disciplined, aggressive, and process-driven trader with a passion for progress in the financial markets. I also have 5 years of sales experience with 2 multi-national corporations before I went full-time on crypto. In crypto, I have almost a year experience as Business Development Manager for an upcoming layer 2 on ETH focused on blockchain gaming. I believe that the skills I've learned with my experience in 2 very different industries will allow me to provide a lot of value to my future clients.

Quantitative Trading | AI/ML Systems | Low-Latency Execution | HFT Infrastructure I help systematic trading teams build production-grade quantitative trading systems that actually work in live markets. Over the past 10+ years, I’ve designed and deployed algorithmic trading infrastructure across FX, crypto, equities, and derivatives; covering the full pipeline from research and feature engineering to execution, monitoring, and risk management. My work focuses on solving one of the biggest problems in systematic trading: The gap between backtests and live performance. I specialize in: → Event-driven backtesting with strict point-in-time correctness → Low-latency execution systems & market microstructure → FX & crypto execution optimization → AI/ML signal research & feature engineering → Cross-venue and statistical arbitrage → Market making & inventory-aware execution → Risk-aware portfolio and position management → Tick-level & L2 order book data systems I build high-performance infrastructure using Python and C++, working with shared memory, mmap, multiprocessing, WebSockets, FIX APIs, REST APIs, Redis, and event-driven architectures. Selected work includes: → Point-in-time multi-asset backtesting engines → Low-latency market-making systems → Real-time FX & crypto arbitrage engines → Shared-memory tick processing pipelines → AI-driven signal research frameworks → Execution analytics & slippage analysis systems I focus on robustness over overfitting, execution over theory, and systems that behave realistically under live market conditions. If you're building or scaling a serious systematic trading operation and need help with research infrastructure, execution systems, backtesting, or production trading architecture, feel free to reach out. ------------ Notable Projects Built a high-performance event-driven backtesting engine designed around strict point-in-time correctness, capable of handling multi-asset data with realistic execution modeling. The system supports tick and bar data, corporate actions, and reproduces live trading behavior without lookahead bias, enabling reliable research-to-production transition. Designed and deployed a low-latency market making system based on inventory-aware pricing and microstructure signals. The system incorporates dynamic spread adjustment, adverse selection control, and execution optimization to maintain profitability under varying liquidity and volatility regimes. Developed a real-time cross-venue arbitrage engine across FX and crypto markets, integrating multiple brokers and exchanges. The system includes latency-aware signal validation, quote synchronization, execution throttling, and risk controls to capture short-lived inefficiencies in live markets. Engineered a shared-memory, ultra-low latency data pipeline between trading platforms and Python-based orchestrators using custom C++ DLLs and ring buffers. The system delivers sub-millisecond tick propagation with sequence tracking, enabling high-frequency strategies and real-time analytics. Created an entropy-based data mining framework for large-scale strategy discovery, focusing on information-theoretic feature selection to reduce overfitting and improve robustness. The framework evaluates thousands of indicators and permutations while controlling for data mining bias. Built advanced machine learning pipelines for alpha generation, including meta-labeling frameworks, probabilistic signal filtering, and feature engineering tailored to financial time series. Models are designed for stability across regime

I'm a certified Blockchain Engineer and Smart Contract Auditor with strong educational background having experience of more than 10 years. Skilled in JavaScript, Solidity, Rust and python language and creating Rest APi. I have led projects related to Assets Tokenizations, creating DApps, Decentralized Anonymous Organization (DAO) and DEFI. As a Full Stack Developer I have a 5 year experience. I also provide consultations, developments to Banks, insurance, Healthcare and logistic solutions to bring about change through using blockchain. Smart Contracts Audit is a crucial step to ensure the security and reliability of projects. My services for EVM Based Smart Contracts offer detailed reports to bring safety to client project and investors. The audit process is highly iterative, so i worked with the client until he is satisfied with the results before issuing a report. I performed a generic review of every aspect of the project's architecture, including security vulnerabilities, general best practices in code design and implementation. ✅ Smart Contract Audit ✅ Blockchain Security ✅Assets Tokenizations ✅Token economics Design ✅Launch-Pad IDO DAPPs ✅ICO - IGO Smart Contract ✅CrowdFunding Smart Contract ✅Decentralized Lottary Smart Contract ✅NFT MarketPlace ✅NFT Minting ✅ Stable coin ✅Proxy Smart Contract FRONTEND: (1) Next.js (Integration using Web3.js) (2) React.js (Integration using Web3.js) BACKEND: Node is, Express.js, SQL, MonGodb ----------- Solidity, Blockchain, Smart Contracts,Rust I can help you with: - Create and deploy smart contracts - Create and deploy NFTs ERC-1155 and ERC-721 - Create and deploy ERC20 and BEP20 Tokens -Create a CrossChain smart contract - Verified and publish - Website development ---------------- Testing on TestNet before deploying on the MainNet 100% ownership Source Code NOTE: I am open to collaborations on other projects as well, feel free to contact me anytime. I am online 24/7, I will get back to you in a short amount of time

Fractional CTO and software architect with 25+ years of hands-on engineering experience. I help founders, startups, and growing companies make better technical decisions, build stronger engineering systems, and scale products with less risk. For the last 5 years, I have been building Growity Systems as CTO and co-founder, leading architecture, product development, and engineering execution end-to-end. This experience strengthened not only my technical depth, but also my ability to make pragmatic decisions about scalability, delivery, product trade-offs, team structure, and business impact. I work with companies that need senior technical leadership without hiring a full-time CTO. My role typically includes defining architecture, improving delivery discipline, raising engineering quality and technical standards, and helping teams execute with more clarity and consistency. My background combines executive-level technical leadership with deep hands-on development. I am most useful when a company needs someone who can move between business goals, product priorities, system architecture, and implementation details without losing speed or quality. I can help with: • technical strategy and architecture • product-to-engineering translation • system design for scalable and high-load platforms • team leadership and engineering process improvement • codebase review, refactoring, and modernization • hiring, team structuring, and technical due diligence • stabilizing and restructuring troubled projects My strongest domains include fintech, trading infrastructure, digital asset systems, and high-performance backend platforms. I have worked on low-latency systems, exchange integrations, market-data processing, trading platforms, distributed services, and complex backend architectures. I am also actively integrating AI into engineering and business workflows, including autonomous AI agents for code review, research, internal automation, and decision support. I approach AI pragmatically: as a tool for improving delivery speed, engineering quality, and operational efficiency. Clients typically bring me in when they need a fractional CTO to lead the technical side of the business, a senior architect to design or stabilize a critical system, or a hands-on technical leader to bring structure, direction, and execution to a growing team. If you need a senior technical leader who can combine strategy, architecture, delivery, and hands-on execution, I can help as a fractional CTO or software architect. Keywords: Fractional CTO Software Architect System Architecture Technical Strategy Engineering Leadership Technical Due Diligence System Design Scalable Architecture Backend Architecture C# C++ Rust .NET Core Distributed Systems High-Load Systems Low-Latency Systems WebSockets Fintech Trading Infrastructure Algorithmic Trading Order Management System Order Matching Engine Market Data Market Making Backtesting Exchange Integration Derivatives Digital Assets AI Agents AI Automation

The importance of your company's online presence has never been as significant as it is now. Having spent over five years working in this niche, I have extensive experience providing these services. 𝐓𝐰𝐢𝐭𝐭𝐞𝐫/𝐗 𝐀𝐜𝐜𝐨𝐮𝐧𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭. 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞𝐝 𝐢𝐧 𝐂𝐫𝐲𝐩𝐭𝐨 & 𝐅𝐨𝐫𝐞𝐱 𝐎𝐫𝐠𝐚𝐧𝐢𝐜 𝐆𝐫𝐨𝐰𝐭𝐡 𝐒𝐭𝐫𝐚𝐭𝐞𝐠𝐢𝐞𝐬. 𝐓𝐰𝐢𝐭𝐭𝐞𝐫/𝐗 𝐀𝐜𝐜𝐨𝐮𝐧𝐭 𝐌𝐨𝐧𝐞𝐭𝐢𝐳𝐚𝐭𝐢𝐨𝐧 𝐒𝐞𝐯𝐢𝐜𝐞. 𝐂𝐨𝐧𝐭𝐞𝐧𝐭 𝐂𝐫𝐞𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐀𝐜𝐜𝐨𝐮𝐧𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭. 𝐈𝐧𝐟𝐥𝐮𝐞𝐧𝐜𝐞𝐫𝐬 𝐎𝐮𝐭𝐫𝐞𝐚𝐜𝐡. 𝐓𝐰𝐢𝐭𝐭𝐞𝐫 𝐒𝐡𝐢𝐥𝐥𝐢𝐧𝐠. 𝐒𝐨𝐜𝐢𝐚𝐥 𝐌𝐞𝐝𝐢𝐚 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Expert in managing all social media platforms to enhance brand visibility and engagement. 𝐓𝐫𝐞𝐧𝐝𝐢𝐧𝐠 𝐂𝐨𝐧𝐭𝐞𝐧𝐭 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡: Proficient in researching and identifying trending topics and content ideas to optimize social media presence. 𝐒𝐭𝐫𝐚𝐭𝐞𝐠𝐢𝐜 𝐏𝐥𝐚𝐧𝐧𝐢𝐧𝐠: Experienced in developing effective strategies to boost content reach and engagement across various social media channels. 𝐀𝐮𝐝𝐢𝐞𝐧𝐜𝐞 𝐄𝐧𝐠𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Skilled in fostering meaningful interactions with the target audience to drive brand awareness and loyalty. 𝐂𝐨𝐧𝐭𝐞𝐧𝐭 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧: Capable of providing insights and recommendations to optimize content for maximum impact and relevance. 𝐂𝐫𝐞𝐚𝐭𝐢𝐯𝐞 𝐈𝐝𝐞𝐚𝐭𝐢𝐨𝐧: Innovative thinker with a knack for generating fresh ideas to captivate audiences and elevate brand storytelling. I'll help elevate your brand's social media presence to new heights. Let's talk Kind Regards: Nazir

Hi, I’m Zaigham Javed, a Full Stack Engineer and Team Lead with 8+ years of experience building scalable, secure, and production-grade systems used by 200K+ active users. I don’t just write code, I take ownership of systems end-to-end, from architecture to deployment and long-term stability. 🚀 What I Bring Strong expertise in Node.js, NestJS, React, Next.js, React Native, TypeScript Deep experience in Blockchain / Web3 (EVM, Bitcoin, DeFi, Wallets, DEX/CEX) Proven track record of building high-scale systems running in production for 5+ years Experience leading teams, making architectural decisions, and shipping reliable products 🧠 Real Production Experience I’ve built and delivered complex systems like: Multi-chain non-custodial crypto wallets (EVM, BTC, Solana, Cosmos) DeFi platforms (DEX, staking, lending, cross-chain swaps) CEX exchanges with trading, wallets, and transaction systems Marketplace platforms (real-time systems, search, transactions) End-to-end encrypted cloud storage systems Microservices-based SaaS platforms on AWS These are not side projects, they are live systems handling real users, real transactions, and real edge cases. 🛠️ Tech Stack Backend & Architecture Node.js, NestJS, Express, Microservices, Monolith, Monorepo Frontend React.js, Next.js, React Native Blockchain Ethers.js, Web3.js, Smart Contracts, Solidity, Ethereum, BSC, Polygon, Bitcoin, Tron, etc Databases PostgreSQL, MySQL, MongoDB, Redis Cloud & DevOps AWS (EC2, S3, SQS, SES, Lambda), Docker, CI/CD Other REST APIs, GraphQL, WebSockets, Stripe, Security, Encryption ⚡ How I Work Understand requirements deeply (not just surface-level features) Suggest better architecture and improvements proactively Build with production edge cases in mind Focus on scalability, performance, and security from day one Deliver clean, maintainable, and well-structured code 🤝 Why Clients Work With Me I act like a technical partner, not just a developer Strong communication and fast response I take ownership and solve problems, not just follow instructions Reliable delivery with long-term support mindset 💬 Let’s Build Something Solid Even though I’m relatively new on Upwork, I’ve been working directly with clients for years. To get started here, I’m keeping my rates competitive without compromising quality. 👉 Share your idea, and I’ll help you turn it into a scalable, production-ready system.

𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗘𝘅𝗽𝗲𝗿𝘁 | 𝗦𝗺𝗮𝗿𝘁 𝗖𝗼𝗻𝘁𝗿𝗮𝗰𝘁𝘀 | 𝗗𝗲𝗙𝗶 | 𝗡𝗙𝗧 𝗠𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲𝘀 Are you seeking cutting-edge blockchain solutions? With 𝟳 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗵𝗮𝗻𝗱𝘀-𝗼𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲, I specialize in creating innovative and scalable blockchain applications that deliver value. Here's how I can help your project succeed: 🌐 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Ethereum (ERC20, ERC721, Solidity, Smart Contracts, Web3, Hardhat) Cryptocurrency Integration (Bitcoin, Ethereum, NEO, EOS, Monero, PIVX) Blockchain Consulting & Private Blockchain Development Smart Contract Development for DeFi and NFT Marketplaces Tokenization, Staking Pools, and Crypto Wallet Development Blockchain Explorer and Crypto Bot Development STO/ICO/IDO/IEO/IGO/INO Solutions 🚀 DeFi & NFT Development: Decentralized Finance (DeFi) Solutions NFT Marketplace Creation (Minting, Buying, Selling, and Royalties) Web3 and DApp Development 🖥️ 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗖𝗮𝗽𝗮𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀: 𝔽𝕣𝕠𝕟𝕥𝕖𝕟𝕕: React.js, Next.js, TypeScript, Angular, Vue.js 𝔹𝕒𝕔𝕜𝕖𝕟𝕕: Node.js, Express.js, Nest.js, MongoDB, MySQL Whether you need blockchain consulting, crypto bot development, or enterprise-level blockchain solutions, I deliver results tailored to your needs. "𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗶𝘀 𝘁𝗵𝗲 𝗳𝘂𝘁𝘂𝗿𝗲, 𝗮𝗻𝗱 𝗜'𝗺 𝗵𝗲𝗿𝗲 𝘁𝗼 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘀𝗵𝗮𝗽𝗲 𝗶𝘁." Feel free to message me for a detailed discussion or a custom quote for your project. Let's build something revolutionary together!

7+ 𝐲𝐞𝐚𝐫𝐬 of building crypto wallets, DeFi apps & fintech platforms - from idea to App Store. If you're launching a crypto wallet, DeFi mobile app, trading platform, or fintech product - you're in the right place. I specialize in React Native mobile development for the crypto and fintech space. I don't just write code - I help you ship a product that users actually want to open every day. 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝 Crypto Wallets - custodial and non-custodial wallets for iOS and Android. Multi-chain support: Ethereum, Solana, TON, BSC, Polygon, TRON and other EVM chains. DeFi and Web3 Mobile Apps - DEX integrations, staking dashboards, yield farming UIs, token swaps, NFT portfolios - all connected to smart contracts via Web3.js and Ethers.js. Fintech Mobile Apps - payment systems, digital wallets, P2P transfers, real-time transaction monitoring, KYC flows, and open banking integrations. Trading Bot Interfaces - mobile frontends for algorithmic trading systems, CEX/DEX dashboards, real-time PnL tracking, copy trading UIs. Smart Contract Integration - connecting your mobile app to Solidity (EVM) or FunC (TON) smart contracts. Secure, tested, production-ready. Crypto Exchange Apps - full-featured exchange interfaces with order books, real-time charts, wallet management, and API integrations (Binance, Bybit via CCXT). 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 On the mobile side I work with React Native, building cross-platform iOS and Android apps with Expo. For blockchain integrations I connect to Ethereum, Solana, TON, BSC, Polygon, TRON and other EVM chains using web3.js and Ethers.js. Smart contracts - Solidity for EVM chains, FunC for TON, Rust for Solana. On the backend I use Python, Node.js, FastAPI, PostgreSQL, MongoDB, Redis and WebSockets. For automation and bots - Playwright, Selenium, aiogram for Telegram. Infrastructure runs on Docker with CI/CD via GitHub Actions. 𝐖𝐡𝐚𝐭 𝐌𝐚𝐤𝐞𝐬 𝐌𝐞 𝐃𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 Most mobile developers can build a UI. I understand how crypto products work - blockchain architecture, wallet security, gas optimization, on-chain data, smart contract interaction - and I build mobile apps that handle all of it correctly. Whether you need a crypto wallet like Trust Wallet, a DeFi dashboard, a fintech MVP, or a trading bot mobile frontend - I've built products across all these verticals. Clean architecture, scalable from day one. Security-first mindset, especially critical for financial apps. Full ownership from wireframe to App Store and Google Play. Fast delivery - MVPs in 4 to 8 weeks. 𝐑𝐞𝐜𝐞𝐧𝐭 𝐖𝐨𝐫𝐤 Crypto wallet with multi-chain support (EVM + TON) and biometric auth. DeFi mobile app with staking, farming, and token swap via Uniswap. Fintech platform with P2P payments, real-time ledger, and KYC integration. Telegram trading bot with mobile monitoring dashboard. 𝐋𝐞𝐭'𝐬 𝐓𝐚𝐥𝐤 𝘉𝘶𝘪𝘭𝘥𝘪𝘯𝘨 𝘢 𝘤𝘳𝘺𝘱𝘵𝘰 𝘸𝘢𝘭𝘭𝘦𝘵, 𝘋𝘦𝘍𝘪 𝘢𝘱𝘱, 𝘰𝘳 𝘧𝘪𝘯𝘵𝘦𝘤𝘩 𝘱𝘭𝘢𝘵𝘧𝘰𝘳𝘮? 𝐒𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 - I'll review your idea and suggest the right architecture before we write a single line of code.

More than over 4+ years, I love building, scaling, and optimizing complex software applications using Rust, Python, and AWS and AI Automations with n8n and Google ADK. My unique value proposition is the ability to deliver high-performance systems while explaning concepts as Technical SaaS Writer who can clearly communicate complex concepts (LLMs, Rust, Bitcoin, Web3) to various audiences. Linkedin : harshil1 Github : Harshil-Jani Medium : harshiljani2002

💎 𝐖𝐞𝐥𝐜𝐨𝐦𝐞! I'm delighted 𝐘𝐎𝐔 are here! 💎 🥇 5+ years of experience in 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧, 𝐌𝐄𝐑𝐍 𝐒𝐭𝐚𝐜𝐤, 𝐃𝐞𝐯𝐎𝐩𝐬, 𝐀𝐖𝐒 🥇 𝐄𝐕𝐌, 𝐒𝐎𝐋𝐀𝐍𝐀, 𝐂𝐎𝐒𝐌𝐎𝐒, 𝐄𝐕𝐌𝐎𝐒 🥇 𝐌𝐄𝐌𝐄, 𝐃𝐄𝐗, 𝐃𝐄𝐅𝐈, 𝐁𝐎𝐓, 𝐍𝐅𝐓, 𝐖𝐄𝐁𝟑 🥇 Website Front-end, Back-end (𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐯𝐞, 𝐒𝐄𝐎) 🥇 𝐋𝐢𝐧𝐮𝐱, 𝐂/𝐂++, 𝐂#, 𝐉𝐚𝐯𝐚, 𝐏𝐲𝐭𝐡𝐨𝐧, 𝐑𝐮𝐬𝐭, 𝐑𝐞𝐯𝐞𝐫𝐬𝐞 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 👍 How can I help you? ✔ Understanding your 𝐕𝐈𝐒𝐈𝐎𝐍 and 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬. ✔ Effective communication and consultation. ✔ 𝐇𝐨𝐧𝐞𝐬𝐭 and 𝐬𝐢𝐧𝐜𝐞𝐫𝐞 effort. ✔ Deploying 𝐫𝐚𝐩𝐢𝐝 and 𝐛𝐞𝐬𝐭-𝐪𝐮𝐚𝐥𝐢𝐭𝐲 results. ✔ Active Feedback & After service. 💪 My Skills 🏆 Developing DEX, DeFi, Presale, Staking, Lending & Borrowing, Launchpad ✔Uniswap & Pancakeswap & Sushiswap ✔Raydium & Meteora & Jupiter ✔Launchpad, Pump.Fun, Moonshot, Jito bundle, 𝐌𝐄𝐌𝐄 ✔AAVE, GMX ✔NFT 🏆 Developing 𝐁𝐎𝐓s. ✔ Volume ✔ Holders ✔ Market Makers ✔ Trading ✔ Arbitrage ✔ Tracking ✔ Bump ✔ Follower ✔ Telegram/X 🏆 Building and Deploying Blockchain Networks. ✔ EVM ✔ Solana ✔ EVMOS ✔ Cosmos ✔ Polkadot 🏆 Developing MERN stack ✔ HTML, Tailwind CSS, CSS, SASS, and PostCSS ✔ JavaScript, ES6, Typescript and Python ✔ Web3, React.js, Next.js ✔ MongoDB, PostgreSQL and MySQL 🏆 DevOps ✔ Git/GitHub ✔ Linux server administration ✔ C/C++, Bash script ✔ Docker containerization ✔ Hosting solution with AWS