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Andrew W.
$90/hr
100% Job Success
$100K+ earned
Available now
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With over 20 years of extensive experience in software development, a strong foundation in a variety of programming languages, and a proven track record in delivering efficient and scalable software solutions, I am confident in my ability to contribute effectively to your team. I specialize in full stack development, data engineering, database design, cloud migration, API integrations, and enterprise application modernization. My main technical strengths include .NET, C#, React, Angular, SQL Server, PostgreSQL, AWS, Azure, ETL, SSIS, Power BI, Tableau, Docker, Kubernetes, and microservices. Throughout my career, I have worked with healthcare, fintech, government, aviation, and enterprise clients. I have built web applications from the ground up, optimized slow systems, designed data warehouses, created ETL pipelines, developed reporting dashboards, migrated legacy systems to modern cloud platforms, and led development teams through full project lifecycles. I can help with: • Full stack web application development • NET / C# backend development • React / Angular frontend development • SQL Server / PostgreSQL database design • ETL, SSIS, data warehouse, and reporting • AWS / Azure cloud deployment and migration • API integrations and microservices • Power BI, Tableau, and Grafana dashboards • Legacy system modernization and performance optimization I am comfortable working independently or as part of a team, and I can take a project from requirements gathering and architecture through development, testing, deployment, and ongoing support. My goal is always to build solutions that are secure, scalable, reliable, and easy to maintain.
Andrew W. has worked .
Rahul S.
$25/hr
99% Job Success
$200K+ earned
Available now
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As a Business & Technology Consultant at smartData, I support clients across Australia, New Zealand, Japan, ASEAN, United Kingdom, Scotland in designing and delivering custom digital solutions that solve real-world business problems. With over 16 years of experience in both business and technology domains, I bring a consultative approach backed by execution models that align with your goals – whether you prefer Onshore support, Offshore delivery, or a Hybrid approach that offers the best of both worlds. **Domain Experience** - Enterprise SaaS & Workflow Automation: Custom platforms for workforce scheduling, franchise operations, facility management, approvals, and notification workflows with scalable cloud infrastructure. - Digital Supply Chain: End-to-end visibility platforms covering order lifecycle, inventory, vendor tracking, route optimization, and integration with IoT and third-party logistics. - Compliance Management: Document lifecycle tracking, automated audits, energy certificate workflows, provider vetting, and ESG alignment for government, strata, and enterprise clients. - Real Estate: Buyer agent intelligence, property management, compliance tracking, and property investment analytics. - Hospitality: Solutions for digital check-ins, concierge services, staff rostering, guest feedback systems, and operational dashboards to enhance guest experience and efficiency. - Healthcare & Wellness: We build NDIS and aged care systems, remote patient monitoring apps, community care, FHIR-based integrations, AI-driven care tools, and compliance-ready platforms. **Technical Capabilities** - Custom Web & Mobile Development: .NET, Node.js, Python, React, Angular, ReactNative/Flutter, iOS & Android - AI & Intelligent Automation: GPT-4 APIs, OpenAI integration, AWS/Azure AI services, document intelligence, RPA, AI agents and others - Cloud & Infrastructure: Azure, AWS, GCP – scalable architectures, CI/CD pipelines, DevOps practices - Third-Party Integrations: Xero, Stripe, Zoom, Twilio, Zoho Suite, MS Dynamics, FHIR APIs, FieldPulse, and custom REST/GraphQL APIs - Data Analytics & Reporting: Power BI, Zoho Analytics, custom dashboards, financial and operational insights - Platforms: Zoho One, Salesforce and ServiceNow **Why Clients in ANZ, Japan & ASEAN Choose Us** - Strong understanding of local compliance, privacy laws, and industry-specific workflows - Experience with startups, SMEs, public agencies, and enterprise projects - Multilingual capabilities and timezone-aligned support - Agile development with regular demos, documentation, and collaboration tools Let's connect if you're looking for a reliable partner to build, scale, or modernize your digital solution. Whether it's an MVP or an enterprise platform, we tailor delivery to match your pace and priorities.
SmartData Inc Agency
Associated with
SmartData Inc Agency
$70M+
earned
Konstantin S.
$60/hr
100% Job Success
$50K+ earned
Available now
Offers consultations
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Hello! 👋 I’m a CTO, Senior .NET Core Developer, and AI Engineer with 20+ years of experience in C#, Microsoft Azure, cloud architecture, enterprise software, and Artificial Intelligence solutions. I help companies build scalable SaaS platforms, enterprise systems, internal tools, AI assistants, AI copilots, and production-ready AI products. As an AI Developer, I combine backend engineering with AI Development, Automation, API integration, and .NET Core architecture to create reliable Operational systems that solve real business problems. 📘 About Me I’m a technical leader with deep experience in software architecture, C# development, and .NET Core systems. Over the years, I’ve designed cloud-native platforms, distributed applications, Web API services, microservices, and enterprise backend systems for complex environments. My current focus is on Artificial Intelligence, AI Development, AI Agent Development, and practical Automation for business workflows. As an AI Developer, I build systems that connect LLMs, RAG, Azure AI Services, APIs, and business logic into stable products. The goal is not just to add AI features, but to create Operational value: fewer manual tasks, better decisions, faster delivery, and cleaner internal processes. As an AI Developer, I work across the full product lifecycle: discovery, architecture, backend logic, API integration, cloud setup, testing, deployment, and long-term support. I use .NET Core, Microsoft Azure, Orleans, RESTful architecture, and CI/CD to make sure every solution is secure, maintainable, and ready for real users. A strong part of my work is AI Development for SaaS products and enterprise platforms. I design Artificial Intelligence features, AI agents, AI assistants, copilots, workflow Automation, and API-connected systems that support real Operational needs. My background in .NET Core and distributed architecture helps me build high-concurrency applications that stay stable as usage grows. I also help teams modernize existing systems. As an AI Developer, I can review architecture, improve backend performance, connect AI services, build custom Automation, and turn fragmented workflows into one clear Operational process. 🛠️ Technical Skills C# & .NET Core Microsoft Azure & Cloud Architecture Orleans Distributed Virtual Actor Framework RESTful Architecture & Web API SaaS Development & Microservices Software Architecture & Design Patterns Artificial Intelligence solution design Artificial Intelligence architecture AI Development lifecycle .NET Core architecture AI Development for enterprise systems AI Developer implementation AI Agent Development & AI assistants Retrieval Augmented Generation LLM Prompt Design Azure AI Services API Design and Integration Automation workflows Operational system architecture MAUI & Blazor Angular DevOps, Kubernetes & CI/CD Aspire 🌿 Strategic Skills Enterprise Software Architecture Planning Artificial Intelligence strategy AI Development roadmap AI Developer technical leadership Automation planning Operational workflow optimization Cloud Migration & Optimization Performance Optimization Security & GDPR Compliance Cost Optimization Agile & Scrum Team Leadership Stakeholder Communication Technical Discovery & Roadmapping TOGAF Methodology Problem Solving 🏆 Certifications Microsoft Certified: Azure AI Associate Microsoft Certified: Azure Developer Associate Microsoft Certified: Azure DevOps Expert Microsoft Certified: Azure AI Fundamentals Xamarin Certified Mobile Developer Agentic AI developer, C# ai, ai integration, ai api integration,ai integration specialist, ai agent saas, ai saas developer, ai architect, ai solution architect, ai chat bot, ai chatbot saas, open ai chatbot, full stack developer, multi-agent, ai agent automation, ai automation agency, chatbot automation,, c# developer, c# .net, .net ai, .net developer, .net fullstack, ai agent builder, ai agent n8n, ai agent crypto, ai agent automation, rag, agentic rag, agentic rag, ai engineer rag, agentic rag, full stack app developer, full stack developer ai, artificial intelligence, artificial intelligence consultant, ai llm, llm agent, ai llm developer, llm chatbot, langchain agent, ai developer langchain, llm langchain, ai agent, ai voice agent, customer service agent, web developer, azure ai, azure ai studio, azure devops, azure architect, ai engineer, prompt engineer, product engineer, ai workflow, ai workflow automation, workflow automation, orchestration, ai prompt engineer, claude prompt, ai prompt engineering, ai prompt,prompt engineer claude, open ai developer, open ai chatbot, ai models, ai integration, ai integration specialist, ai integrator, ai api integrator, ai powered, claude certified.
Konstantin S. has worked .
Managed Code
Associated with
Managed Code
$100K+
earned
Guy P.
$65/hr
99% Job Success
$2M+ earned
Available now
Offers consultations
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AI Development & Digital Transformation | LLMs, RAG, Agentic AI, Full-Stack | Expert-Vetted Top 1% I genuinely love helping businesses build kick-ass AI and custom software products and that obsession has earned Valere an Expert-Vetted Top 1% badge on Upwork, ranking us among the top 1% of software development talent on the platform. I'm Guy, CEO and founder of Valere. After 15+ years building, consulting, and launching consumer software products (including two acquisitions, one being a 15-million user app) I started Valere to help companies become AI-first through end-to-end engineering and transformation. We walk our clients through the whole process from AI planning and assessment, discovery, product design, technical solutioning, development, deployment, team adoption, AI upskilling/ AI coaching, and ongoing improvement. My ultimate goal is to help companies become AI-first by handling the full lifecycle and providing with tangible outcomes that we can all be proud of. There’s a lot of heart that goes into building impactful products. On paper, that looks like…300+ production deployments. $900M+ in measured client impact. 94% partner satisfaction. Clients include Fortune 500 companies, Johns Hopkins University, United Rentals, Mars, iHeartMedia, and CarShield. Client platforms we've built have helped raise $70M+ in venture and institutional funding. What my team builds: ✔ AI: Agentic systems, LLM applications, RAG pipelines, NLP, computer vision, ML, predictive analytics, generative AI, deep learning ✔ Web: React, Angular, Vue, Next.js ✔ Mobile: React Native, Flutter, Swift, Kotlin ✔ Back-end: Python, Node.js, .NET, PHP ✔ Cloud & DevOps: AWS, Azure, Google Cloud, Docker, Kubernetes ✔ Data: PostgreSQL, MongoDB, Snowflake, dbt ✔ Design: UX/UI, design systems, accessibility Who I work with: Venture-backed startups, PE-backed companies, mid-market businesses, and Fortune 500 enterprises across healthcare, finance, sports, fitness, education, and operations. Why clients choose us: ⭐️ AWS Advanced Tier & recognized AI/ML Partner ⭐️ Ranked #2 AI Services Provider on G2 a verified enterprise reviews ⭐️ Clutch Global Awards 2026 Top ML & AI Provider | Top 15 AI/ML worldwide ⭐️ Expert-Vetted Top 1% Agency on Upwork and featured in Upwork's 2023 Q2 Shareholder Report ⭐️ Selected for Upwork's Customer Advocacy Program, invited speaker at Upwork AI events ⭐️ The Manifest: Most Reviewed Developer 2024 ⭐️ Recognized Top 5 Trusted AI Agency by Tom Popomaronis Our AI transformation model: We transform companies into AI-first organizations through three tracks: Build (end-to-end AI and custom software development), Educate (AI workforce readiness via Valere Learning and General Upskilling through Evolve, our social platform), and Scale (proprietary products including Conducto, our agentic AI orchestration framework, and Dactic, our research automation platform). 225+ global professionals: AI Strategists, Data Scientists, Generative AI Developers, Agentic AI Engineers, UX Designers, Product Managers. U.S.-based oversight, 24/7 global coverage. Each client I work with gets decades of direct experience, through our engineers and through processes iterated on for YEARS across hiring, engineering, design, and QA. I'm OBSESSIVE about excellence. Anything less is unacceptable, which is why I only take on work we can execute at the highest level. If you have read this far, please note I appreciate you taking the time. I would love to learn about what you're building. Send me a message. Let’s chat!
Guy P. has worked .
Valere
Associated with
Valere
$2M+
earned
Marina P.
$45/hr
100% Job Success
$700K+ earned
Available now
Offers consultations
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🚀 The Top 3% of Talent in Mobile & AI-Powered Product Development 🤖 AI-Driven Mobile Engineer Building Apps That Scale Beyond MVP ⚡ AI-Assisted Engineering for Faster Delivery & Higher Product Quality 👉 WHAT YOU GET ✔️ Full Stack Mobile Developer - 22+ years experience, 2000+ builds, $700K+ client impact, end-to-end development ownership. ✔️ React Native Mobile App & Flutter Developer - 100+ interfaces, 18–27% user engagement lift, clarity and ultimate trust. ✔️ Mobile Application Developer - 30–40% faster launch cycles, cleaner UI/UX, stronger user retention across SaaS Mobile App ecosystems. 👉 ACHIEVEMENTS ✔️ 22+ years, 40,000+ hours, 2000+ products delivered as a full stack mobile developer, mobile app developer, and senior full stack developer ai and mobile application developer workflows. ✔️ $700K+ client impact, $900K+ direct revenue, 200+ successful MVPs, £11M annual business volume generated as a top-performing mobile app development expert. ✔️ 100,000+ active users where a custom react native mobile app developer execution lifted repeat engagement by 27% on a popular festival companion app. ✔️ 10,000+ users in Healthcare Platform and HIPAA-compliant systems where mobile application developer architecture cut clinical data friction by 40% using an intuitive doctor directory website interface. ✔️ 2,423 completed mobile orders, 34% faster handling in E-commerce Marketplace App and Fintech Platform deployments as a full stack developer. ✔️ 90% faster background sync, 80% lower crash workload, 65% fewer endpoint errors through API Integration, automated Stripe integration, and Flutter developer performance fixes. ✔️ 5–8 weeks shorter Startup MVP to Pilot Launch, 35% fewer critical production bugs through legacy code refactoring and clean continuous development pipelines. 👉 WHERE I DELIVER ✔️ As a mobile app developer - 200+ systems with pixel-perfect mobile app design, automated push notifications, and UI/UX design and development across SaaS Mobile App and Enterprise Mobile App architectures. ✔️ As an experienced mobile app developer - 15+ years of cross-platform engineering, delivering 30–40% faster iteration cycles for teams that need both iOS and Android apps from scratch. ✔️ As a full stack developer - 50+ end-to-end mobile + web platform setups with secure Node.js backend architecture, REST API deployment, and database scaling from Early-Stage MVP to live production. ✔️ As a react native mobile app specialist - building responsive mobile app react native mobile components for cross-platform app deployment, ensuring native-like feel across both iOS and Android. ✔️ As an AI App developer & AI Developer - leveraging cutting-edge ai platform development, ai development, and ai mobile development to build smart assistants, audio transcription apps, and image/vision processing products. ✔️ As a backend developer and javascript developer - writing highly maintainable server code in Node.js, Express, NestJS, and PHP (Laravel) with robust database integration via MongoDB, PostgreSQL, and Firebase/Supabase. ✔️ As a full stack mobile developer - driving ongoing support and maintenance, optimizing systems to fix bugs and improve performance with a dedicated team mindset. 👉 INDUSTRY IMPACT ✔️ Marketplace App & E-commerce - thousands of item listings, 20%+ higher checkout conversion as a mobile application developer and full stack developer. ✔️ Healthcare Platform & Telehealth - clinic workflows, 25%+ better data processing security as a senior mobile app developer. ✔️ AI Mobile App & AI Platform Development - OpenAI & Claude API smart integrations, automated recommendations, and custom conversational interfaces as an AI App developer. ✔️ Fintech Platform & SaaS Mobile App - secure in-app purchases, mobile subscriptions, multi-role access control, and seamless Stripe payment integrations. ✔️ Enterprise Mobile App & Workflow Automation - customized real-time chat, location-tracking (GPS/Google Maps), and mobile app + admin panel management tools. 👉 HOW I BUILD ✔️ 22+ years as a mobile app developer: built with cross-platform and native ecosystems using Swift, Kotlin, Java, Flutter, React Native, and native app infrastructure optimized for smartphone form factors. ✔️ 15+ systems as a full stack developer: powered by Node.js, Express, NestJS, PHP (Laravel), TypeScript, REST API protocols, GraphQL, Firebase, Supabase, Firestore, PostgreSQL, and MongoDB. ✔️ 40+ products engineered with a dedicated team mindset: utilizing clean Git version control, secure AWS cloud envicloud environments, Docker containers, and rigorous usability testing to publish app to App Store and Google Play smoothly. Looking for an elite Senior Mobile & Full Stack Developer who can build an app from scratch, create a mobile application with premium UX, or handle complex product development for long-term collaboration? Let's connect! Send an invite and let’s talk about your project goals. ☎️
Onix-Systems, LLC
Associated with
Onix-Systems, LLC
$20M+
earned
Daria B.
$35/hr
100% Job Success
$60K+ earned
Offers consultations
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👋 Hi! Looking for a Senior .NET Developer or Full Stack Developer who delivers scalable enterprise systems — not just working code? With 10+ years as a C# .NET Developer, .NET Core Developer, and Full Stack Developer, I design and build production-grade SaaS platforms, CRM systems, legacy migration pipelines, and AI-integrated web applications for FinTech, HealthTech, EdTech, and enterprise clients across North America and Europe. Whether you need a .NET Full Stack Developer to architect a greenfield SaaS product, a React Developer or Angular Developer to rebuild a frontend, or a Senior .NET Developer to modernize aging .NET Framework systems — I cover the full delivery cycle from architecture to deployment. 🏆 What Sets My .NET Full Stack Work Apart 10+ years as a Senior .NET Developer & Senior Full Stack Developer 15+ enterprise platforms delivered: SaaS, CRM, marketplace, portal, and booking platform builds .NET Core / ASP.NET Core / C# .NET architecture across microservices, MVC, and event-driven systems React Developer & Angular Developer — full frontend ownership with TypeScript and JavaScript AI Developer integrations: OpenAI API, Dify, GPT-based automation, AI Agent Development Legacy .NET Framework modernization to .NET Core with zero production downtime HIPAA & GDPR-compliant systems across MedTech, Gov, and FinTech verticals .NET MAUI & Xamarin cross-platform desktop application and mobile application builds API Integration specialist: Stripe, PayPal, GraphQL, REST, gRPC, and third-party SaaS APIs Cloud: Azure Developer & AWS deployments, Docker, Kubernetes, CI/CD pipelines Full Stack SaaS Developer across subscription, marketplace, and document management platforms WordPress Developer for custom business portals and CMS-driven web application builds Node.js & Next.js experience for high-performance API layers and server-side rendering Python Full Stack work on data-heavy analytics and automation pipelines JavaScript Full Stack delivery: React, Angular, Vue.js, Node.js — all in one team 🚀 Selected Projects Norwegian E-Learning Platform (EdTech SaaS) Built as Tech Lead and .NET Full Stack Developer using Vue.js, ASP.NET Core, Azure, and SQL. The Vignita platform scaled to 2,500 companies and 100,000+ employees, embedded in 10+ university programs nationwide. Affiliate B2B Platform "Affaim" (MarTech) Delivered as .NET Developer and Full Stack Developer — multi-tenant architecture, high-load SQL databases, secure partner portals, and Shopify integration. Python Full Stack layer for analytics and data pipelines. Global Payments System "WorldRemit" (FinTech) Migrated legacy .NET systems to modern microservices. Payment gateway integrations, global API layer, and real-time transaction management as .NET Core Developer and Full Stack Developer AI. AI Arbitrage Platform "Sellerbility" Full Stack Developer AI role — built automation logic, OpenAI integrations, React dashboards, and API-driven analytics modules. Multi-Platform Telemedicine System (HealthTech) Mobile App Developer and .NET Developer: .NET Core backend, Blazor, SignalR, Xamarin cross-platform mobile, GDPR-compliant data architecture. 🔧 Core Tech Stack Backend & .NET: C#, .NET Core, ASP.NET Core, ASP.NET MVC, ASP.NET Web API, .NET Framework, .NET MAUI, Blazor, WPF, Entity Framework, SignalR, OAuth2, LINQ, WCF Frontend: React, Angular, Vue.js, Next.js, TypeScript, JavaScript, jQuery, Bootstrap, Tailwind CSS, HTML5, CSS3 Databases: SQL Server, MySQL, PostgreSQL, MongoDB, Redis, Azure SQL, Supabase, Elasticsearch Cloud & DevOps: Azure, AWS, Docker, Kubernetes, Azure App Services, Azure Data Factory, CI/CD, Git API & Integrations: Stripe, PayPal, GraphQL, REST, gRPC, OpenAI, SendGrid, Google Maps, IronPDF, Crypto Exchange APIs, Zendesk, RevenueCat Mobile & Cross-Platform: .NET MAUI, Xamarin, Flutter, Supabase, Firebase Auth, Android, iOS AI & Automation: OpenAI API, Dify AI, AI Agent Development, AI App Development, Machine Learning integration, Python automation CMS & eCommerce: WordPress Developer, Shopify, WooCommerce, CodeIgniter, Laravel (PHP integration layer) 💡 Results at a Glance ✅ 100,000+ users onboarded via SaaS platforms I architected ✅ Legacy .NET Framework systems modernized to microservices with zero downtime ✅ HIPAA & GDPR compliance delivered across healthcare and government platforms ✅ AI integrations reducing manual processing workload by 60%+ ✅ Cross-platform desktop application and mobile application shipped from a single C# codebase ✅ 12+ payment gateway and API Integration implementations across FinTech and eCommerce ✅ Database architecture supporting 100M+ records with sub-200ms query performance Open to Senior .NET Developer, C# Developer, .NET Core Developer, Full Stack Developer, React Developer, Angular Developer, Full Stack SaaS Developer, AI Developer, JavaScript Developer or Web Development engagements — long-term preferred, fixed-scope welcome. 📆 Last Updated: 06/26
NVCoding
Associated with
NVCoding
$50K+
earned
$20/hr
100% Job Success
$20K+ earned
Available now
Offers consultations
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Full-Stack Engineer helping startups and businesses build scalable SaaS, AI-powered web and mobile applications using React, Next.js, Node.js, Python, FastAPI, TypeScript, React Native, Supabase, PostgreSQL, MongoDB, OpenAI, Claude, LangChain, and modern cloud technologies. From MVPs to production platforms, I build products that are fast, maintainable, and ready to scale. I work with founders, startups, and growing businesses to turn ideas into reliable software. Whether you're validating an MVP, scaling an existing product, integrating AI, or modernizing your application, I focus on building solutions that are clean, scalable, and built for long-term success. I also leverage modern AI-assisted development workflows using Claude, Cursor, ChatGPT, GitHub Copilot, and other AI tools to accelerate development, improve code quality, and reduce delivery time without compromising engineering standards. Most products don't fail because of bad ideas. They fail because they're built without scalability, maintainability, or future growth in mind. My goal is to make sure your product is ready for both launch and what comes after. MVP & Product Development From an idea on a whiteboard to a production-ready application, I can own the entire development lifecycle. • Product architecture and technical planning • End-to-end MVP development • SaaS platform development • Feature development and product scaling • API integrations and third-party services • Deployment and production support Full-Stack Development Frontend • React • Next.js • TypeScript • JavaScript • Tailwind CSS Backend • Node.js • Express.js • REST APIs • GraphQL Databases • PostgreSQL • MongoDB • Supabase • Firebase Integrations • Stripe • Twilio • SendGrid • Authentication • Payment systems • Third-party APIs AI Development & Integrations AI is becoming part of every modern product, and I help businesses integrate it in ways that deliver real value. • OpenAI API integration • Claude integration • LangChain applications • AI chatbots and assistants • RAG (Retrieval-Augmented Generation) systems • Vector databases and semantic search • AI agents and workflow automation • AI-powered SaaS features • Custom internal AI tools AI-Assisted Engineering I combine senior engineering practices with modern AI development tools to build software more efficiently. • Claude • Cursor • ChatGPT • GitHub Copilot • Faster feature delivery • AI-assisted debugging and testing • Rapid prototyping • Code refactoring • Documentation generation • Technical planning Web3 & Blockchain Development • Smart contract development with Solidity • Hardhat and Foundry • dApp development • MetaMask and WalletConnect integrations • Ethers.js and Web3.js • Token transfers and crypto payments • Blockchain API integrations (Alchemy, Infura) • Gas optimization Web & Mobile Applications • Responsive web applications with React and Next.js • Cross-platform mobile apps using React Native • Performance optimization • Accessibility improvements • Clean, intuitive user experiences Why Clients Choose Me There are plenty of developers who can write code. What matters is building software that supports your business long after launch. Here's what you can expect when working with me: • Clean, maintainable code that scales with your business • Strong communication and proactive updates • Fast development without sacrificing quality • Experience across SaaS, AI, Web, Mobile, and Web3 products • Product-focused thinking, not just task completion • Reliable architecture that minimizes technical debt Core Skills React • Next.js • Node.js • TypeScript • JavaScript • React Native • Tailwind CSS • PostgreSQL • MongoDB • Supabase • Firebase • REST API • GraphQL • OpenAI API • Claude • LangChain • AI Agents • RAG • Vector Databases • Semantic Search • Prompt Engineering • AI Automation • Cursor • GitHub Copilot • Solidity • Hardhat • Ethers.js • Web3.js • MetaMask • WalletConnect • Stripe • SaaS Development • MVP Development • Full-Stack Development • AI Integration • Mobile App Development • Blockchain Development If you're building a new product, adding AI capabilities, scaling an existing platform, or need an experienced engineer to rescue a project that's falling behind, let's talk. I'll give you a clear assessment of the best technical approach and what it will take to get your product where it needs to be.
OptimusFox
Associated with
OptimusFox
$20K+
earned
Michelle P.
$150/hr
100% Job Success
Available now
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A Top 1% on UpWork Expert Vetted Freelancer! [Feb 2025 update: I'm privileged that my (and my small team's) services are in such high demand. 🙏🏼 Just to confirm my pricing: UX/UI and / or branding work is billed at $150 per / hour. All projects are scoped and agreed beforehand.👌🏼]. I’m a brand and UX/UI designer with 10+ years of experience working with tech companies of various sizes and stages, from high profile venture-backed startups backed by venture capital firms like Sequoia, a16z, and Y Combinator to large tech companies. I’ve collaborated with companies across many different sectors from SaaS, to AI, to healthtech, real estate tech, fintech, and more. I pride myself on delivering design solutions that combine aesthetics with functionality. If you have a project you’d like to collaborate on, I’d love to hear from you. Here's what clients said! ⭐️⭐️⭐️⭐️⭐️ "We can't rate MIchelle highly enough for taking our vision and early designs, and making them 100x better than we could have asked for. It was an extremely collaborative process and we couldn't be happier with our new site" Caleb - CTO ⭐️⭐️⭐️⭐️⭐️ “Feels so great to give something to someone and have that person always make it better than I could have hoped for” - Patrick P. (Project Manager) ⭐️⭐️⭐️⭐️⭐️ “I felt like I was looking at the future” - VC Investor ⭐️⭐️⭐️⭐️⭐️ “Impeccable. Michelle’s work is simply impeccable” - Dan - CEO ⭐️⭐️⭐️⭐️⭐️ “We’re ecstatic with the results of the website. Can’t express how much we’ve enjoyed working with the team and appreciated the hard work thats gone into this, so thank you.” - Alex - CEO ⭐️⭐️⭐️⭐️⭐️ “A bit of feedback I got from someone who did diligence for a HNW investor is that it was the best fund manager deck he’s ever seen” - GP at VC fund Services 🎨 Branding 🏢 Corporate identity 📏 Style guide 🖼️ Visual design 📈 Marketing design 🌐 Landing page design 📊 Investor decks 🎨 Art direction 🧑‍🎨 Logo creation 📱 Mobile app design (UX/UI) 🖥️ Web app design (UX/UI) ✏️ Wireframing 🖱️ Clickable prototypes 🛠️ Design systems 🔍 Product audits Design tools 🖌️ Figma ✒️ Adobe Illustrator 📷 Adobe Photoshop 🎬 Adobe After Effects 💻 Webflow
Vad M.
$40/hr
100% Job Success
$1M+ earned
Offers consultations
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Live Video App Development, AI App Development, MVP Development, Video Surveillance, WebRTC & Live Streaming. I help founders and product teams plan, scope, and deliver production-grade video and AI applications with Fora Soft’s senior engineering team. My focus is discovery, product requirements, technical scoping, architecture planning, delivery coordination, and client communication. The engineering work is handled by Fora Soft’s specialized developers, architects, QA engineers, and project managers. Backed by Fora Soft: $10M+ earned on Upwork, 914 jobs, 401K+ hours, and 250+ projects since 2005. 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗕𝘂𝗶𝗹𝗱 – Live video apps, WebRTC platforms, streaming products, webinars, broadcasting, IPTV/OTT – AI video apps: object detection, facial analysis, emotion AI, speech-to-speech translation, captions, LLM assistants – Video surveillance and IP camera platforms: multi-camera ingestion, mobile-as-camera, smart analytics, Smart TV apps – VoIP, UCaaS, SIP, LiveKit, Twilio, Telnyx, FreeSWITCH, real-time communication systems – MVPs, rescue projects, architecture reviews, and modernization of existing systems 𝗥𝗲𝗰𝗲𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗘𝘅𝗮𝗺𝗽𝗹es → Nucleus – secure UCaaS platform by Fibernetics, a Canadian telecom serving 300K+ customers and 5,000+ businesses. Fora Soft worked on iOS and platform delivery for WebRTC + SIP audio/video, real-time voice workflows, CRM/ERP integrations, and enterprise-grade communication features. Project volume: $285K+ combined. → TransLinguist – real-time AI interpretation platform for video calls. The platform supports interpretation workflows across 75+ languages, certified interpreter operations, AI speech-to-speech features, and live captions. → Doorbell App – LiveKit SIP-to-WebRTC bridge for smart intercoms. Video and audio from SIP intercoms to a mobile app, low-latency media through LiveKit, and DTMF-based remote door opening. → EmoProof – on-device emotion AI for iOS using Core ML. Real-time facial emotion and voice sentiment analysis on the phone, with privacy-focused processing and journal-style trend stats. 𝗪𝗵𝗲𝗿𝗲 𝗙𝗼𝗿𝗮 𝗦𝗼𝗳𝘁 𝗜𝘀 𝗦𝘁𝗿𝗼𝗻𝗴𝗲𝘀𝘁 – Live streaming & WebRTC: low-latency broadcasting, webinars, multi-camera apps, IPTV/OTT – Video surveillance: IP cameras, mobile-as-camera, smart analytics, Smart TV apps – Real-time AI/ML on video: OpenCV, YOLO, facial analysis, object detection, speech AI, captions – Mobile live video: iOS, Android, React Native, AVFoundation, Camera2 – VoIP & UCaaS: SIP, FreeSWITCH, LiveKit, Telnyx, Twilio, high-load communication systems 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗢𝘂𝗿 𝗧𝗲𝗮𝗺 𝗪𝗼𝗿𝗸𝘀 𝗪𝗶𝘁𝗵 ◆ Frontend: React, Next.js, Vue, Angular, TypeScript ◆ Backend: Node.js, NestJS, Python / FastAPI, Go, PHP / Laravel ◆ Video: WebRTC, LiveKit, Wowza, Kurento, MediaSoup, Janus, Jitsi, Agora, FFmpeg, GStreamer, HLS/DASH, RTMP/RTSP, SIP, FreeSWITCH, Telnyx, Twilio ◆ AI/ML: OpenAI API, Claude, Whisper, TensorFlow, PyTorch, OpenCV, YOLO, Azure AI Face, Deepgram ◆ Mobile: Swift, Kotlin, React Native, ARKit, ARCore, AVFoundation, Camera2 API ◆ Databases & Infrastructure: PostgreSQL, MongoDB, Redis, Elasticsearch, AWS, GCP, Docker, Kubernetes, NGINX, CI/CD 𝗪𝗵𝘆 𝗙𝗼𝗿𝗮𝗦𝗼𝗳𝘁 Fora Soft is a specialized video, WebRTC, and telecom software team with: – $10M+ earned on Upwork – 914 Upwork jobs – 401K+ hours – 250+ projects since 2005 – 400+ clients across 17+ countries – Deep experience in live video, streaming, VoIP, AI video, and real-time communication Send me a message or invite me to your job. I’ll review your idea, ask the right scoping questions, and suggest the best next step: discovery, audit, MVP planning, or full development.
Fora Soft LLC
Associated with
Fora Soft LLC
$10M+
earned
Denis S.
$45/hr
100% Job Success
$600K+ earned
Available now
Offers consultations
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🚀 Top 1% of Talent in 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & Technology Leadership ⚡ Building 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬, enterprise platforms, SaaS solutions, and scalable digital ecosystems 🔧 Using modern AI tools including Cursor, Claude Code, GitHub Copilot, GPT-4/GPT-4o, and Claude Sonnet/Opus 🤖 Experienced in AI agents, LLM integrations, AI automation, and multi-agent development systems 🚀 Accelerating development with 𝐀𝐈-𝐚𝐬𝐬𝐢𝐬𝐭𝐞𝐝 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢, agentic coding, and automation-driven workflows 💻 𝐖𝐇𝐀𝐓 𝐘𝐎𝐔 𝐀𝐍𝐃 𝐘𝐎𝐔𝐑 𝐓𝐄𝐀𝐌 𝐆𝐄𝐓 Full-Stack Web Development Master's - high-performance web application development utilizing React, Node.js, and PHP to build scalable SaaS, FinTech, and Enterprise software. AI & Automation Systems Innovators - custom LLM applications, RAG pipelines, and intelligent workflow automations seamlessly integrated into your infrastructure. 📊 𝐀𝐂𝐇𝐈𝐄𝐕𝐄𝐌𝐄𝐍𝐓𝐒 𝐈𝐍 𝐍𝐔𝐌𝐁𝐄𝐑𝐒 (𝐁𝐔𝐒𝐈𝐍𝐄𝐒𝐒 & 𝐒𝐘𝐒𝐓𝐄𝐌 𝐈𝐌𝐏𝐀𝐂𝐓) 25+ years, 50,000+ engineering hours, 200+ successful launches delivered as a Senior Full Stack Developer and tech leader across global industries. ◾ Full-Stack Web Development for Enterprise & SaaS Platforms: Engineered and launched custom AI-powered SaaS platforms that scaled to millions of active users with 99.99% operational uptime. Accelerated product development cycles by 40% by deploying optimized React component libraries and agile workflows. Backend Architecture & API Engineering (Node.js & PHP): Reduced server infrastructure costs by 50% by migrating legacy monoliths into scalable microservices using Node.js, NestJS, and PHP. Optimized heavy data-processing pipelines, reducing database latency by 70% via tailored PostgreSQL, MongoDB, and MySQL schemas. ◾ AI App Development & Workflow Automation: Developed and integrated proprietary OpenAI GPT, Claude, and Gemini models into operational CRMs, increasing client workflow efficiency by 180%. Successfully deployed secure, HIPAA-compliant healthcare applications and high-security FinTech platforms with built-in Stripe / PayPal integrations. 🎯 𝐖𝐇𝐄𝐑𝐄 𝐖𝐄 𝐃𝐄𝐋𝐈𝐕𝐄𝐑 (𝐂𝐎𝐑𝐄 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄) As a Full Stack Developer & Solution Architect: I handle the full cycle of Full-Stack Web Development, defining technical roadmaps, designing scalable web applications, and ensuring bulletproof cyber-security protocols. As a Front-End Development Expert: Crafting pixel-perfect, highly responsive user interfaces using React, Next.js, TypeScript, Vue.js, and Angular to ensure maximum conversion rates and premium UX. As a Back-End Development Authority: Designing ultra-fast APIs and core services with Node.js (Express/NestJS), PHP, Python (FastAPI/Django), and modern Serverless Stack architectures. As a Cloud & DevOps Engineer: Implementing enterprise-grade cloud deployments via AWS, Google Cloud, and Azure, utilizing Docker, Kubernetes, and automated CI/CD pipelines. 🛠 𝐓𝐄𝐂𝐇 𝐒𝐓𝐀𝐂𝐊 & 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄 𝐄𝐂𝐎𝐒𝐘𝐒𝐓𝐄𝐌 Frontend Suite: React, Next.js, TypeScript, Tailwind CSS, Vue.js, Angular, Responsive Web Design. Backend Core: Node.js, NestJS, Express.js, PHP, Python, FastAPI, Django. Databases & Caching: PostgreSQL, MongoDB, MySQL, Redis. APIs & Global Integrations: REST APIs, GraphQL, Webhooks, Stripe, PayPal, Twilio, SendGrid. Cloud & DevOps Platform: AWS (Amazon Web Services), Google Cloud, Azure, Docker, Kubernetes, Jenkins, GitHub Actions CI/CD. 🧠 𝐃𝐄𝐄𝐏 𝐈𝐍𝐃𝐔𝐒𝐓𝐑𝐘 𝐄𝐗𝐏𝐄𝐑𝐈𝐄𝐍𝐂𝐄 AI & SaaS Startups: Rapid MVP development, RAG pipelines, AI chatbots, and predictive analytics tools. FinTech & E-commerce: High-load payment gateways, customized checkout solutions, compliance, and ledger systems. Healthcare & PropTech: Automated workflow systems, secure patient portals, CRM platforms, and real-time data visualization dashboards. Enterprise Automation: Heavy B2B platforms, marketplaces, and cross-platform integrations. ⚡ 𝐇𝐎𝐖 𝐖𝐄 𝐖𝐎𝐑𝐊 𝐓𝐎𝐆𝐄𝐓𝐇𝐄𝐑 Strategic Discovery: As a CTO, I align your business goals, success metrics, and timeline constraints before writing a single line of code. Architecture Blueprinting: We map out the core database schemas, React frontend components, and Node.js / PHP API flows to ensure long-term scalability. Agile Iteration: Backed by the senior engineering powerhouse at Onix-Systems, we deliver high-velocity sprints with predictable, production-ready releases every 2 weeks. DevOps & Launch: Secure deployment across AWS/GCP/Azure with ongoing tech partnership and proactive optimization based on product metrics. Looking for a Senior Full Stack Developer and a Full-Stack Web Development team to turn your complex concept into a world-class, scalable web platform? 𝐋𝐞𝐭’𝐬 𝐜𝐨𝐧𝐧𝐞𝐜𝐭! Send over your project brief, scope, or existing codebase notes, and I’ll provide a high-level strategic roadmap for your next big launch. ☎️
Onix-Systems, LLC
Associated with
Onix-Systems, LLC
$20M+
earned