7-year experience Agile developer who specializes in mobile development using modern cross-platform technology like Flutter and React Native. On top of that, I'm well-trained with Agile practices and currently certified by Atlassian and Scrum.org 📱 FLUTTER ✅ 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄: Provider, BLoC, MobX, GetX ✅ 𝐒𝐓𝐎𝐑𝐀𝐆𝐄: Shared preferences, sqflite, sembast, Cookiejar, mmkv_flutter ✅ 𝐍𝐄𝐓𝐖𝐎𝐑𝐊𝐈𝐍𝐆: Dio, Flutter Downloader ✅ 𝐈𝐌𝐀𝐆𝐄: Cached Network Image, Bitmap, Photo View ✅ 𝐓𝐃𝐃: Mockito, Flutter Widget Test ✅ 𝐎𝐏𝐒: Bitrise, Fastlane, AppCenter, AWS 📱 𝐑𝐄𝐀𝐂𝐓 𝐍𝐀𝐓𝐈𝐕𝐄 ✅ 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄: MobX, Redux ✅ 𝐒𝐓𝐎𝐑𝐀𝐆𝐄: RxDB, react-native-storage, react-native-sqlite, realm ✅ 𝐍𝐄𝐓𝐖𝐎𝐑𝐊𝐈𝐍𝐆: react-native-networking, react-native-simple-auth, react-native-background-upload, react-native-async-http ✅ 𝐈𝐌𝐀𝐆𝐄: react-native-safe-image, react-native-photoeditorsdk ✅ 𝐓𝐃𝐃: jest, mocha, chai, Enzyme, react-native-mock ✅ 𝐎𝐏𝐒: Bitrise, Fastlane

Senior Full-Stack Developer & UI/UX with extensive experience in building, designing, and scaling over 100 successful SaaS platforms and mobile apps. My team and I specialize in TypeScript-based technologies like Next.js, React, Node, Nest.js, and React Native, delivering high-performance, scalable digital solutions. So far, with our help, our customers have reached: 📈 $57M+ in Annual Recurring Revenue 💰 $50M+ in Investor Funding Raised 👥 1M+ Monthly Active Users HOW I HELP YOU We make your app or software intuitive, performant, and built to scale - web, mobile, or desktop: 👨‍💻 Full Ownership, Zero Fragmentation: Strategy → UX/UI → Engineering → Launch. One integrated team. You ship faster without coordination overhead. 🎨 Design That Converts: Full UX design, redesigns, and rebrands - software that impresses users and moves business metrics. 🚀 End-to-End Development: From wireframes to deployment. User-centered design meets robust, scalable architecture. BACKGROUND I'm Felipe Telles, founder of Ego Eimi - a US-based tech studio. Before founding Ego Eimi, I led and scaled multiple tech companies from pre-seed to Series A+, secured two successful exits (2019 & 2022), and advised Fortune 500 companies on product and technology strategy. Now I focus on designing and developing top-tier web, SaaS, and mobile apps - integrating AI, elevating UX, and driving measurable business outcomes. With the right strategy, design, and technology, you will: ✓ Increase retention ✓ Lift conversion ✓ Create seamless experiences users love - and pay for NEXT STEP Message me about your project. I'd love to hear your vision and show you how we'll bring it to life.

Flash Loan Arbitrage Developer | DeFi Engineer | Smart Contract Specialist I build high-performance flash loan arbitrage bots and DeFi automation systems that execute profitable cross-protocol trades in a single atomic transaction, zero capital required. With deep expertise in Solidity, EVM architecture, and on-chain MEV strategies, I've developed and deployed production-grade systems across Uniswap, Aave, Balancer, Curve, dYdX, and Compound — capturing arbitrage opportunities across DEX price inefficiencies in milliseconds.

Hello, If you’re looking for a reliable professional who can handle healthcare operations, administrative tasks, AI-powered solutions, and digital growth activities — I can help. I am a Medical Billing Specialist, AI Prompt Engineer, Virtual Assistant, and Crypto Marketing Expert with experience supporting businesses by improving workflows, managing daily operations, and delivering accurate results. My background combines healthcare administration, AI productivity solutions, customer communication, and digital marketing, allowing me to support businesses in multiple areas while maintaining quality and efficiency. My expertise includes: Medical Billing & Healthcare Support • Medical claim submission and follow-up • Insurance verification and eligibility checks • Denial management and claim resolution • Reviewing EOBs/ERAs and payment details • Patient records management and data entry • Appointment scheduling and patient communication • Working with billing platforms and healthcare workflows AI Prompt Engineering & AI Assistance • Creating and optimizing AI prompts for business tasks • Developing reusable ChatGPT prompt templates • AI-assisted content creation and research • Improving AI responses for accuracy and efficiency • Creating prompts for customer support, marketing, emails, and productivity Virtual Assistance & Business Support • CRM management and lead tracking • Cold calling and outreach campaigns • Email management and customer support • Online research and data organization • Microsoft Office and Google Workspace • Administrative support and workflow management Crypto Marketing & Community Support • Crypto project marketing assistance • Community management and engagement • Social media content planning • Campaign support and audience growth strategies • Researching trends in Web3 and blockchain industries I focus on being proactive, organized, and dependable. My goal is to reduce your workload by handling tasks efficiently, communicating clearly, and delivering work that helps your business grow. If you need someone who can combine healthcare knowledge, AI skills, virtual assistance, and marketing support, I’d be happy to discuss how I can help. Regards, Roshan Sahu

I build the clean, reliable data layer your team — and your AI tools — actually trust. From marketing, finance & CRM warehouses in BigQuery to real-time pipelines running at 200k+ events/sec, I've spent 15 years making data fast, accurate, and cost-effective. Most "data problems" aren't really about tools — they're about numbers finance can't trace, dashboards that silently break, and cloud bills that climb faster than the data does. I fix the layer underneath so the whole thing just runs — and often cut the bill while doing it. ⎯⎯⎯ What I do for you ⎯⎯⎯ ◆ Modern Warehouses in BigQuery (dbt + Medallion) — Unified, documented, AI-ready data from ad platforms (Meta, Google, TikTok), CRMs, and ERPs. For enhanza I consolidated financial data from 1,000+ organizations into one BigQuery platform with self-serve dashboards. ◆ AI-Ready & LLM Pipelines — Data modeled so your AI tools consume it directly: LLM enrichment/categorization, clean context windows, no manual prep. Shipped code-first with Claude Code + gcloud — no hand-written SQL in the console. ◆ Cut Your Cloud Bill (FinOps) — Runaway AWS costs are usually egress fees and over-priced managed services, not the data itself. I migrated a client's Dagster pipelines from AWS to Civo Kubernetes + Cloudflare R2 — eliminating S3 egress fees and slashing managed-cluster costs, with no orchestration rewrite. If your bill is climbing, I'll audit it and re-architect the expensive parts. ◆ Real-Time & High-Scale (when you need it) — Streaming in Flink/Kafka and sub-second OLAP in ClickHouse/StarRocks. I've run 200k+ ingest events/sec in an air-gapped cluster — so a standard pipeline is routine for me. ◆ Reliability & Observability — Monitoring, lineage, and schema-drift alerts so dashboards stop breaking. On one platform this cut data downtime by ~90%. ⎯⎯⎯ How I work ⎯⎯⎯ ▹ Root-cause, not patches. I fix the layer underneath so the same dashboard doesn't break again next month. Quick patches are how data platforms rot. ▹ Built to run without me. No "works once on my laptop" scripts — proper deployment, secrets, logging, alerts, and infrastructure as code (Terraform). Reproducible, and yours to keep. ▹ Straight about what I know. If something's outside my wheelhouse, I say so up front and give you the honest trade-off. I won't learn on your budget and call it experience. ▹ I own the outcome. Give me the goal and I'll work through the ambiguity and keep you posted — no micromanagement needed. ▹ A full team behind me. I run with a ~20-person team across data engineering, BI, DevOps, and AI/ML — so you're never betting on one person's calendar or blind spots. You work with me directly, and I pull in the right specialist when the scope calls for it. Senior ownership, agency depth. ⎯⎯⎯ Tech I work in daily ⎯⎯⎯ ▹ Warehouse & Analytics: BigQuery, dbt, dlt, Meltano, Medallion Architecture, Power BI, Looker Studio, Metabase ▹ Cloud & Orchestration: GCP, AWS, Azure, Civo, Airflow, Prefect, Dagster, Kubernetes, Terraform ▹ Streaming & Performance: Kafka, Flink, Spark/PySpark, ClickHouse, StarRocks, Iceberg, Delta, Polars, Cloudflare R2 ▹ AI-first delivery: Claude Code + gcloud/CLI, LLM enrichment pipelines ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ I don't just "install tools" — I design for compute cost (FinOps) and data reliability. If your cloud bill is climbing or your reporting can't be trusted, I'll audit the stack and tell you exactly what to fix. Want a quick, no-pressure look at your setup? Send me a message and I'll share where I'd start.

Senior full-stack engineer (12+ yrs) and fractional CTO. I've shipped a healthcare SaaS used by millions, a loyalty platform that helped raise $5M, and cut one client's infra bill by 80%. I specialize in React.js, Next.js, Node.js, AWS, GCP, and AI-powered SaaS development, including advanced integrations with OpenAI, Anthropic, MCP servers, and modern agentic coding workflows. GPT-5 is now widely used in products like Cursor, Windsurf, GitHub Copilot, and Codex for agentic coding, while OpenAI Codex itself has evolved into a parallel agent workspace for cloud-based development. I actively use modern vibe coding and AI development tools such as Cursor, Cursor Composer, Windsurf Editor, OpenAI Codex, Claude Code, v0, Bolt, Lovable, Replit, GitHub Copilot, Devin, Tabnine, Qodo, Windsurf, Trae, and other AI-first builders to speed up delivery, reduce repetitive work, and improve code quality. Cursor has introduced Composer and a multi-agent interface, Windsurf positions itself as an AI-native IDE, and Claude Code now supports agent teams that can work in parallel on codebase tasks. I work with advanced models including GPT-5, Claude Sonnet 4.6, Claude Opus 4.6, and coding-optimized model workflows for architecture, debugging, refactoring, feature delivery, code review, and product acceleration. Claude Sonnet 4.6 is positioned by Anthropic as a major upgrade for coding, long-context reasoning, and agent planning, and Windsurf has also added fast coding-focused OpenAI model support. Achievements: 🎖️ Built an HRM loyalty platform that raised $5M 🚀 Developed a healthcare SaaS platform serving millions of users ✂️ Reduced infrastructure costs for a client by 80% 👨‍💻 My skill set: Frontend: React.js, Next.js, Remix, TypeScript, Redux, MobX, GraphQL, Apollo Client, MUI, Ant Design, SSR, SSG, Medusa.js Backend: Node.js, NestJS, Express, Firebase, AWS Amplify, MongoDB, PostgreSQL, MySQL, Redis, TypeORM, Hasura DevOps / Cloud: AWS, GCP, DigitalOcean, Vercel, Firebase, EC2, ECS, Kubernetes, CI/CD pipelines, self-hosted infrastructure Headless CMS: Contentful, Strapi, Sanity AI / Architecture / Performance: OpenAI, ChatGPT, Codex, Anthropic Claude, MCP servers, AI agent workflows, page speed optimization, Lighthouse, PageSpeed Insights, Python, Django, RabbitMQ, Kafka, Redis, microservices, micro-frontends, and database optimization 🧑 Shortly about me: • 12+ years of web development experience • 5+ years in team leadership and management roles • Strong product thinking from MVP and POC to scalable production systems • Deep experience improving existing products, architecture, security, performance, and revenue outcomes • Passion for building clean, efficient, visually polished interfaces and robust backend systems Key strengths: 💪 Strong expertise in Next.js, React.js, NestJS, and modern full stack architecture 💪 Hands-on experience with AI-assisted and agentic development workflows 💪 Excellent communication, ownership, and business understanding 💪 Ability to move fast with modern AI tools while keeping code maintainable 💪 Flexible, proactive, and focused on practical results 💪 Constantly learning and adopting the newest high-impact tools and workflows 📩🚀 Ready to elevate your project with modern full stack engineering and AI-accelerated development? Send me a direct message or invite me to your project, and let’s build something exceptional together.

I value my client's trust, and I commit myself to a job in completing projects on time with full responsibility. I have a speedy turnaround time, and I am available 24/7 and always on reach. For any queries, please leave me a message to discuss how we can work together to meet your business needs fully. Cheers :)

Hey! I’m Anthony, a Senior 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 Software Engineer with a deep passion for 𝐀𝐈, 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧, and building modern, scalable web applications. With a Bachelor’s and Master’s degree in Computer Science from the University of California, Los Angeles, I bring a broad skill set combined with a strong foundation in computer science principles, which helps me architect robust software solutions that meet real-world demands. 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 • Python, Go, Java, JavaScript, TypeScript, C#, Solidity, Rust • Front-end: React, Next.js, Vue.js • Back-end: Node.js, Express, FastAPI, Flask, Django, .Net Core • Blockchain: Ethereum, Solana, Smart Contracts, DApps, DeFi • AI & Machine Learning: Large Language Models (LLMs), NLP, PyTorch, TensorFlow 𝐀𝐈 𝐚𝐧𝐝 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 I have hands-on experience developing AI-powered chatbots, machine learning models, and blockchain smart contracts. Combining AI with blockchain and cloud technologies, I build intelligent, secure, and scalable systems that enhance user experience and drive business innovation. I’m skilled in integrating smart contracts on Ethereum and Solana with front-end applications for seamless decentralized experiences. 𝐂𝐥𝐨𝐮𝐝 𝐚𝐧𝐝 𝐃𝐞𝐯𝐎𝐩𝐬 𝐒𝐤𝐢𝐥𝐥𝐬 I work extensively with cloud providers like AWS and Google Cloud Platform, leveraging cloud-native patterns and services to build resilient systems. Passionate about DevOps, I implement CI/CD pipelines, containerization, and microservices architectures to enable rapid iteration and reliable deployments. 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐓𝐞𝐚𝐦 𝐖𝐨𝐫𝐤 Throughout my career, I have collaborated with diverse teams and stakeholders, bringing strong communication skills and a proactive mindset to every project. I’m committed to mentoring teammates, improving code quality, and designing new features that add substantial value while pushing technological boundaries. 𝐏𝐫𝐨𝐟𝐞𝐬𝐬𝐢𝐨𝐧𝐚𝐥 𝐁𝐚𝐜𝐤𝐠𝐫𝐨𝐮𝐧𝐝 • Visa (Senior Software Engineer) • CoinRoutes (Senior Web3 Full Stack Engineer) • Cisco Systems (Senior Software Engineer) • IBM (Web Developer) In these roles, I developed secure, high-performance applications that solve complex real-world problems. I thrive in fast-paced environments where innovation and creativity are encouraged. 𝐂𝐥𝐨𝐬𝐢𝐧𝐠 If you’re looking for a dedicated engineer who blends traditional software craftsmanship with modern AI and blockchain expertise, let’s connect! I’m excited to keep learning, tackle new challenges, and build the future of software development.

I Solve High-Stakes Technical Problems in 3 Key Domains. - AI powered workflows for growing businesses - Blockchain solutions - Full Stack B2B applications 1️⃣ AI AGENTS & AUTOMATION For businesses needing to cut costs and automate operations. What I Deliver: Autonomous AI employees that work 24/7. From "Support Agents" that answer tickets to "Research Agents" that scrape the web and compile reports. My Focus: Reliability and ROI. If the AI doesn't save you hours of human time, I don't build it. Stack: OpenAI, LangChain, Vapi, n8n, Vector DBs. 2️⃣ BLOCKCHAIN & WEB3 ARCHITECTURE For founders launching tokens, NFTs, or DeFi protocols. With yeqrs of blockchain experience, I deliver Secure Smart Contracts (Solidity), Token Launches (ICOs/IDOs), and DeFi logic that handles real capital safely. My Focus: Security, Gas Optimization, and flawless On-Chain execution. Stack: Solidity, Hardhat, Ethers.js, Wagmi. 3️⃣ FULL-STACK B2B SAAS DEVELOPMENT For startups and enterprises building robust software platforms. What I Deliver: Production-grade B2B platforms. I architect scalable backends and responsive frontends that can handle thousands of concurrent users. My Focus: Scalability, Clean Architecture, and Long-term Maintainability. Stack: Typescript, React, Next.js, PostgreSQL. 🔧 WHY CHOOSE ME? Distinct Expertise: I don't force Blockchain into an AI project, or AI into a simple SaaS. I use the right tool for your specific problem. End-to-End Ownership: Whether you hire me for Domain 1, 2, or 3, I handle the full lifecycle—from architecture to deployment. Business-First Mindset: I build systems that solve business problems, not just code challenges. Book a free audit of your business today!

I'm a Top Rated Unity Game Developer with 10+ years of experience building high-quality mobile, multiplayer, WebGL, AR/VR, and cross-platform games for startups, enterprises, government organizations, and global brands. I've helped clients transform ideas into successful products by combining engaging gameplay, scalable architecture, and polished user experiences. ✅ Top Rated Freelancer ✅ 100% Job Success Score ✅ $100K+ Total Earnings ✅ 7,700+ Logged Hours ✅ 10+ Years of Professional Experience Throughout my career, I've developed games and interactive experiences across mobile, WebGL, VR, blockchain, AI, and enterprise platforms using Unity. I've worked on projects ranging from casual mobile games and educational applications to large-scale multiplayer ecosystems and hardware-integrated gaming platforms. Some of the notable products and clients I've contributed to include: 1.) Huupe: Exclusive development partner behind the world's first smart basketball gaming ecosystem, building multiplayer games, backend systems, leaderboards, and hardware-integrated experiences. 2.) UAE Government: Developed "Zayed The Leader," an educational game launched nationally and reaching the #1 position on the UAE App Store and Google Play. 3.) Prism.ai: Delivered multiple WebGL games with blockchain integrations, MetaMask connectivity, leaderboards, and Web3 functionality. 4.) Sidekicks.ai: Built an AI-powered AR assistant combining Unity, IBM Watson, Alexa, OpenAI technologies, and expressive 3D avatars. 5.) Pocketship: Developed a real-time multiplayer VR game for Meta Quest using Photon Quantum and Firebase. What I Specialize In: Unity Game Development: Mobile (iOS & Android), PC, Console & WebGL games Casual, Hyper-Casual, Strategy, FPS, Educational & Simulation Games Multiplayer & Online Games: Photon Fusion, Photon Quantum, Lobby Systems, Matchmaking, Leaderboards, Voice Chat & Live Services AR/VR & Immersive Experiences: Meta Quest, ARKit, VR Training, Interactive Simulations & Mixed Reality Applications AI & Emerging Technologies: AI Integration, AI-powered Gameplay, ChatGPT APIs, AI NPCs, Blockchain, NFT & Web3 Games Backend & LiveOps: Firebase, PlayFab, Node.js, REST APIs, AWS, Cloud Save, Analytics, Monetization & In-App Purchases Performance & Publishing: Mobile Optimization, Memory Optimization, Store Publishing, LiveOps, Game Analytics & Continuous Updates Whether you're launching a new game, building a multiplayer experience, creating an AR/VR application, or adding AI-powered features, I'm committed to delivering high-quality, scalable solutions tailored to your goals. Let's discuss your project and bring your vision to life. Thanks!