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$65/hr
$800+ earned
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Creator of nano RTOS and httpstorm.com I am a creative person who likes discovering new technologies and designing solutions to interesting problems. I do need some background to understand any unfamiliar subjects, after that a good solution in only a matter of time. C, C++, Assembly for ARM, Embedded Kernel, JavaScript, HTML5, SwiftUI, bash.
$90/hr
$0 earned
Available now
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I am a software developer and entrepreneur with a passion for virtual and augmented reality technology and the Chief Technology Officer at Metality Lab. As a Unity Certified Professional Programmer and Fiverr Pro seller, I have over 6 years of experience developing games, simulations, and interactive installations for a variety of virtual and augmented reality hardware and software including the Valve Index, Oculus Rift, Oculus Quest, HTC Vive, Microsoft Hololens, and ARFoundation, as well as industries like healthcare, defense, tourism, architecture, education, and manufacturing. I've also had the opportunity to contribute my skills to various small and medium scale tech firms, including an IT company, a digital media agency, and a simulation company. In addition, I have participated in many hackathons and won prominent awards for my work including the Grand Prize at PennApps XIV and Collaborative Grand Prize at Philly Codefest.
$60/hr
$6 earned
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Full Stack developer with 5+ experience building web/mobile apps. I have 3+ experience as AI engineer. I'm very professional in all projects I take on. I am dedicated to always deliver the best quality. I always maintain a strong communication and good collaboration with project managers, developer teams and hiring managers. I write high quality code with perfect structure, which is easy to maintain and made to scale. I let my work speak for its own quality!
William James J.
$160/hr
100% Job Success
$200K+ earned
Offers consultations
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William James J. has worked .
I am a Silicon Valley–based entrepreneur and full-stack developer with more than 10 years of experience building software, launching products, and solving operational problems. From 2016 to 2017, I served as a director at a development company that created and launched its own startups. My work covered the full product lifecycle—from market research and validation to software development and go-to-market strategy. I have also worked as an independent developer, both on and off Upwork, supporting a range of U.S. corporations. In 2026, if you're not using agentic automation effectively, you're tech stack is already obsolete. The competitive advantage is agentic operations: AI systems that can plan, use tools, complete multi-step tasks, coordinate with other agents, and escalate important decisions to people. I help businesses upgrade existing products, technology, and workflows to capture the full operational value of AI. I can build, modify, and refine agentic systems using Hermes, LangChain, and custom orchestration frameworks—including specialized agents, multi-agent workflows, and supervisor agents that manage other agents. Choose me when you need more than an AI demonstration. I combine AI architecture, full-stack development, product strategy, and UX/UI design to create practical systems that integrate with your existing operation and are built for real-world use. Key Use Cases * Rapid AI prototype and MVP deployment * Custom AI-enabled websites and mobile applications * Workflow and repetitive task automation * Multi-agent systems and supervisor agents * CRM, cloud data, project management, HR, and business system integrations * Automated Git repository triage, issue creation, documentation, and release workflows * AI chatbots, internal copilots, and customer support automation * Data extraction, classification, reporting, and decision support * Legacy application modernization with AI capabilities * Human-in-the-loop systems for review, approval, and oversight Core Skills AI: Agentic AI, AI Agents, Multi-Agent Systems, LangGraph, Hermes, LLM Orchestration, RAG, Prompt Engineering, Custom Model Training and Fine-Tuning Development: Node.js, JavaScript, PHP, SQL, REST APIs, Webhooks, SaaS Development, AWS, Database Architecture, Mobile Development. Automation: Workflow Automation, API Integration, CRM Integration, Git Automation, AI Chatbots, Business Process Automation Product: UX/UI Design, MVP Development, Product Strategy, Technical Architecture, Go-to-Market Strategy An NDA-protected client had customer requests, CRM updates, and internal tasks spread across disconnected systems, forcing employees to repeatedly copy information and manually coordinate follow-ups. I designed an agentic workflow that interpreted each request, updated the correct records, created and assigned tasks, and routed exceptions to the appropriate team member for review. The result was a faster and more reliable operating process with fewer repetitive tasks, smoother handoffs, and clear human control over important decisions. Send me the workflow, system, or product you want to improve. I will identify the highest-value opportunities for agentic automation and build a practical path from your current technology to a reliable, production-ready system.
$65/hr
$100K+ earned
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I enjoy following a first principles approach to solving problems. I build systems and have acted in various capacities in software engineering lifecycles: from architecting, to database design, to front end, mobile app and server side software development. I have also acted as product owner and contributed heavily to UX design in collaboration with design teams. I enjoy learning and believe in continuous improvement.
$65/hr
$0 earned
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I’m a Computer Vision and App Developer experienced in turning AI and 3D vision ideas into practical products. Whether you need to build a new vision pipeline, improve an existing system, or integrate computer vision into a mobile app, I can help. My experience includes 2D/3D human pose estimation, multi-camera systems, monocular depth estimation and denoising, 3D reconstruction, image and mesh segmentation, and motion analysis. I have worked on products involving sports biomechanics, human body measurement, virtual fitting, and image-, point cloud-, and mesh-based measurement. • Python, PyTorch, TensorFlow, OpenCV, and Open3D • SwiftUI, iOS development, AWS, and cloud integration • End-to-end delivery from algorithm research and prototyping to app integration, deployment, and product launch I value clear communication, practical solutions, and reliable execution from start to finish.
Jason M.
$95/hr
93% Job Success
$200K+ earned
Available now
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🚀 🥇 Expert-Vetted | Hands-On AI/ML Engineer | I Build LLM Apps, RAG Systems & AI Agents (MCP, LangGraph) | Python, AWS, GCP, Azure | Healthcare & FinTech 👁‍🗨 Overview I build and ship production AI systems myself, end to end. No handoffs, no delegation: I design the architecture, write the code, and stay on it until it is deployed, monitored, and generating ROI. I bring 15+ years of hands-on AI/ML engineering, a PhD in Machine Learning from Iowa State University, and a Master's in Computational Neuroscience from UC San Diego. ✅ What I Build: • LLM Applications: RAG pipelines, chatbots and copilots, document AI, semantic search, structured data extraction • AI Agents: Multi-agent systems, MCP (Model Context Protocol) tool integrations, LangGraph orchestration, function/tool calling, agentic workflow automation • Model Customization: Fine-tuning (LoRA/QLoRA, RLHF/DPO), prompt optimization, evals and guardrails, open-weight model serving (vLLM) • Healthcare AI: Clinical trial automation, medical document generation, HIPAA-compliant systems • Full-Stack AI Products: Python/FastAPI backends, React frontends, Kubernetes, CI/CD across AWS, GCP, Azure 🎯 Recent Hands-On Builds: • Engineered a clinical trial intelligence system for enterprise pharma: ingested, embedded, and indexed 100K+ trials with multi-index, multi-LLM RAG and advanced PDF parsing, powering Q&A, chat, and benchmarking • Built a GenAI product that drafts 100+ page regulatory clinical trial protocols (95% of the full M11 document), with multi-agent validation, consistency, and styling checks • Coded and deployed an ICD-10 billing code prediction model on GCP and an EHR-integrated physician sidebar on AWS EKS • Rescued a failing third-party ML platform, refactored it, and took it to production on AWS at ResMed (NYSE: RMD), enabling their first commercial AI healthcare product • Built ML-powered ad targeting and recommendation systems generating $100K+/month, plus AI products earning $1M+ revenue in year one 💼 Industry Expertise: • Healthcare/Pharma: Clinical trials, EHR API integration, medical AI, FDA-regulated software • FinTech: Real-time fraud detection, card-linked platforms, transactional APIs (MasterCard and Visa partnerships) • Enterprise SaaS and Retail/E-commerce: Multi-tenant APIs, recommendation engines, customer analytics 🔧 Technical Stack: AI/ML: GPT-5, Claude, Gemini, Llama, DeepSeek, Qwen; fine-tuning (LoRA/QLoRA, PEFT, RLHF/DPO); RAG and GraphRAG, hybrid search, rerankers, embeddings Agents: MCP, LangGraph, LangChain, LlamaIndex, CrewAI, OpenAI Agents SDK, structured outputs, tool calling Languages: Python, TypeScript/JavaScript, SQL, Java, Go Frameworks: PyTorch, Hugging Face, FastAPI, React, TensorFlow, Scikit-learn Serving & MLOps: vLLM, Ollama, AWS (SageMaker, Lambda, ECS/EKS), GCP (Vertex AI), Azure AI Foundry, Kubernetes, Docker, MLflow, Weights & Biases Evals & Observability: LangSmith, Langfuse, RAGAS, guardrails, LLM cost optimization Databases: PostgreSQL/pgvector, Pinecone, Qdrant, Weaviate, ChromaDB, Elasticsearch, MongoDB, Redis 📊 Quantifiable Impact: • 100K+ clinical trials processed, indexed, and made queryable for enterprise users • 100+ page medical documents generated with regulatory compliance • 94% accuracy in crisis detection and 73% engagement increase for a nonprofit youth chatbot • 10X subscriber growth driven by models I built and deployed • $100K+/month revenue from ML-powered ad targeting 🎓 Credentials: • PhD, Machine Learning (Iowa State University); M.Sci., Computational Neuroscience (UC San Diego) • IBM Certified: RAG and Agentic AI; Deep Learning Specialization (Coursera) • Published AI/ML researcher (Psychological Science, ICSE); 4 provisional patents in AI/computer vision 🌟 What Sets Me Apart: I am senior, and I still write the code. On every engagement you get one engineer doing the actual work: architecting, coding, testing, deploying, documenting. Because I have built AI in regulated healthcare and fintech environments, compliance, evals, and monitoring are baked in from day one rather than bolted on. My neuroscience background shapes how I build AI systems that genuinely understand human behavior and needs. 🤝 Working With Me: You work directly with me, and I personally do the work. Expect working code early (usually in the first week), frequent demos, clear async communication, and clean documentation at handover. US-based in San Diego (Pacific time), available for both short sprints and long-term builds. Have an AI feature or product that needs to get built? Send me the details and I will reply with exactly how I would build it.
$72/hr
$1K+ earned
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I am an experienced Software Developer with over 5 years of experience working primarily on mobile, web and desktop applications. Currently employed as a Program Manager at Microsoft Corporation in Redmond, WA.
Jonathan M.
$125/hr
Available now
Offers consultations
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I build and ship production systems. AI agents, RAG pipelines, MCP servers, complete platforms. Hands-on every day in Claude Code and Cursor. Solo dev: I write the code, ship the code, deploy it. What I've built: → CareLabl (solo-built consumer iOS app, 4 repos, all me from schema to billing. React/Capacitor + GCP Cloud Run + Vertex AI + RevenueCat. Live on the App Store.) → Pipeline Coach (LangGraph agents on GCP for CRM pipeline hygiene, plus MCP server. Open source) → Vanta MCP Server (open source, TypeScript, OAuth2, published Claude/Cursor plugin) → Truth Hackers (voice AI avatar platform with Anam.ai, GCP, pgvector, Neo4j) → Marketing RAG Assistant (Electron/React/FastAPI desktop app, local-first, sqlite-vss) → 10+ published Claude Code plugins, plus open-source global Claude Code config What you get: → A senior developer who writes the code, not a manager who delegates → Full product ownership from MVP through post-launch iteration → AI agents and workflows on Claude (RAG, MCP, multi-agent, voice) → Production rigor from day one: CI/CD, type-checking, audit trails, security defaults → Founder-paced shipping (8-10 week sprints, full availability, days-not-weeks onboarding) Why hire me: → Production systems shipped. Real things, not demos → Comfortable with founder-led products and long-term partnerships → Fast response, available now Background: Agentic Studio Labs - AI engineering firm, founded 2025. Prior experience includes two VC-backed startups in senior engineering roles, plus a fractional CISO practice (SOC 2, ISO 27001, HIPAA) running alongside.
Ryan W.
$60/hr
100% Job Success
$9K+ earned
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I help brands build polished, high-performing websites and digital creative. With 7 years of agency experience, I’ve worked on campaigns for global brands including Activision (Call of Duty), Epic Games (Fortnite, Rocket League), and Amazon. Today, I bring that same level of polish to smaller businesses and growing brands. What I can help you with: • Web Development: WordPress, Shopify, Squarespace, and custom builds. • Design: Web design, digital campaign assets (social content, banner ads). • Print & Production: Impact reports, event materials, and marketing collateral. If you're looking for someone who can take a clear brief and deliver without the back-and-forth, I'd love to hear about your project.