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$18/hr
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Senior AI, Full-Stack & Mobile Application Architect | AI Agents, SaaS & Scalable Product Development
I help startups, SaaS companies, and enterprises build intelligent software products that automate operations, accelerate growth, and create competitive advantages.
With 10+ years of software engineering experience and deep expertise in Artificial Intelligence, Generative AI, Full-Stack Development, Mobile Applications, and Cloud Infrastructure, I specialize in transforming complex ideas into scalable, production-ready solutions.
From AI-powered SaaS platforms and autonomous agent systems to mobile applications and enterprise automation, I bring both technical execution and product thinking to every engagement.
AI Systems, Agents & Automation
I design and build production-grade AI solutions that go beyond simple chatbot integrations.
Core Expertise
* AI Agents & Multi-Agent Systems
* Agentic Workflows & Autonomous Automation
* Generative AI Applications
* Retrieval-Augmented Generation (RAG)
* Knowledge Bases & AI Assistants
* Prompt Engineering & Optimization
* AI Voice Agents & Conversational Systems
* Document Processing & OCR Solutions
* AI-Powered SaaS Products
* Workflow Automation & Business Process Optimization
AI Technologies
OpenAI, Claude, Gemini, Grok, DeepSeek, LangChain, LangGraph, LlamaIndex, CrewAI, AutoGen, MCP Integrations, Vapi, ElevenLabs, Synthflow
Automation Platforms
n8n, Make, Zapier, Pipedream, CRM Automation, API Integrations, Workflow Orchestration
Mobile Application Development
I build high-performance mobile applications for startups, growing businesses, and enterprise organizations.
Technologies
* React Native
* Flutter
* Swift & SwiftUI
* Kotlin
* Java
Experience Includes
* AI-Powered Mobile Applications
* Real-Time Communication Apps
* GPS & Location-Based Services
* Push Notifications
* Offline-First Applications
* Subscription & Payment Systems
* Health & Fitness Platforms
* E-Commerce Applications
* On-Demand Marketplaces
* Social & Community Platforms
Full-Stack SaaS & Web Development
From MVP development to enterprise-scale platforms.
Frontend
React, Next.js, Angular, TypeScript, JavaScript, Tailwind CSS, ShadCN UI, Material UI
Backend
Node.js, Express, NestJS, Python, FastAPI, Django, Flask
APIs & Architecture
REST APIs, GraphQL, WebSockets, Microservices, Serverless Applications
Databases
PostgreSQL, MongoDB, MySQL, Redis, Firebase, Supabase
Cloud, DevOps & Infrastructure
Building secure, scalable, and maintainable systems designed for long-term growth.
Cloud Platforms
AWS, Google Cloud, Azure, Firebase, DigitalOcean
DevOps
Docker, Kubernetes, CI/CD Pipelines, GitHub Actions, GitLab CI, Jenkins
Infrastructure
Linux, Nginx, Load Balancing, Auto Scaling, Monitoring & Logging, Infrastructure Automation
Machine Learning & Emerging Technologies
Artificial Intelligence & Machine Learning
* Predictive Analytics
* Recommendation Systems
* Computer Vision
* Natural Language Processing
* TensorFlow
* PyTorch
* Scikit-Learn
Blockchain & Web3
* Smart Contracts
* Solidity Development
* Ethereum & Solana Integrations
* Wallet Integrations
* NFT Platforms
* DeFi Applications
Industries Served
Healthcare, FinTech, Real Estate, E-Commerce, Education, Logistics, Hospitality, Fitness, Marketplaces, AI Startups, SaaS Platforms
Why Clients Work With Me
* 10+ Years of Software Engineering Experience
* AI-First Product Development Approach
* Strong Architecture & System Design Expertise
* Experience Scaling Products from MVP to Production
* Clean, Maintainable & Scalable Code
* Clear Communication & Reliable Delivery
* Long-Term Technical Partnership Mindset
I don't just build software. I help businesses leverage technology, AI, and automation to create measurable business outcomes.
Whether you're launching a new product, scaling an existing platform, or integrating AI into your operations, I can help you design, build, and deliver a solution that is reliable, scalable, and built for growth.
$60/hr
100%
Job Success
$60K+ earned
Available now
Start of list.
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Production-focused sci-fi hard-surface and visual development artist for games and film.
I design production-ready sci-fi concepts focused on structure, function, and believable visual systems.
My work covers:
– robotic units, drones, and machinery
– vehicles, spacecraft, and weapons
– sci-fi characters and hard-surface assets
– sci-fi environments and worldbuilding
I help studios define the visual logic, scale, and technology language of their worlds through clear, iteration-friendly concepts built for AAA pipelines.
I work with studios and teams who need reliable external production support — not just striking images.
Tools: Photoshop, Blender, Unreal Engine
$10/hr
100%
Job Success
$10K+ earned
Available now
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Hello! I’m a Virtual Assistant specializing in Shopify/e-commerce customer support and store operations.
I help brands reduce inbox pressure, resolve order issues quickly, and keep customers happy with clear, human replies and organized back-end work.
What I can help with:
• Customer Support: order status, tracking, shipping issues, refunds/exchanges, complaint handling
• Shopify Admin: order edits, tags/notes, customer notes, product updates, reporting
• Operations Support: spreadsheets, data entry, documentation, task coordination, daily status updates
✅ Why Choose Me
• Fast, clear communication
• Organized work (clean notes, tags, tracking)
• Customer-first tone that protects your brand
• Reliable support you can trust daily
I’m easy to work with, consistent, and detail-oriented. If you share your SOP (or I can follow your current style), I can start quickly and keep everything running smoothly.
$25/hr
100%
Job Success
$30K+ earned
Available now
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𝗚𝗼𝘁 𝗮 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝗶𝗱𝗲𝗮 𝗯𝘂𝘁 𝗻𝗼𝘁 𝘀𝘂𝗿𝗲 𝗵𝗼𝘄 𝘁𝗼 𝘁𝘂𝗿𝗻 𝗶𝘁 𝗶𝗻𝘁𝗼 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝘀𝗼𝗹𝗶𝗱?
𝗢𝗿 𝗺𝗮𝘆𝗯𝗲 𝘆𝗼𝘂 𝗯𝘂𝗶𝗹𝘁 𝗮𝗻 𝗠𝗩𝗣 𝗾𝘂𝗶𝗰𝗸𝗹𝘆 𝘂𝘀𝗶𝗻𝗴 𝗔𝗜 𝘁𝗼𝗼𝗹𝘀 𝗮𝗻𝗱 𝗻𝗼𝘄 𝗶𝘁 𝗳𝗲𝗲𝗹𝘀 𝗺𝗲𝘀𝘀𝘆, 𝗳𝗿𝗮𝗴𝗶𝗹𝗲, 𝗼𝗿 𝗵𝗮𝗿𝗱 𝘁𝗼 𝘀𝗰𝗮𝗹𝗲.
I work with founders who want to ship real products, not demos. My focus is clean architecture, practical AI / LLM Integration, and building SaaS Development systems that can scale without needing a rebuild six months later.
I’m Muhammad, a Full Stack Developer specializing in scalable SaaS platforms. I build production-ready systems using Next.js, Node.js, and React, with strong API Integration layers that connect AI capabilities to real business workflows.
I spend more time thinking about structure than features. If the foundation is weak, growth becomes expensive.
AI helps teams move faster, but I don’t rely on it blindly. Architecture, data models, backend stability, and long-term scalability always come first. The goal is simple: launch quickly, but build in a way that won’t break when real users show up.
𝐒𝐨𝐦𝐞 𝐨𝐟 𝐭𝐡𝐞 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 𝐈’𝐯𝐞 𝐰𝐨𝐫𝐤𝐞𝐝 𝐨𝐧:
✔𝐍𝐮𝐫𝐌𝐞𝐝
AI-driven clinical assistant platform supporting healthcare documentation workflows with structured AI / LLM Integration.
✔𝐏𝐚𝐤𝐋𝐚𝐰𝐀𝐬𝐬𝐢𝐬𝐭
Legal automation SaaS handling large-scale structured case data with scalable backend systems.
✔𝐅𝐢𝐜𝐭𝐢𝐨𝐧𝐏𝐮𝐛
AI manuscript generation system built on multi-model pipelines designed for long-form consistency and performance.
✔𝐒𝐄𝐍𝐓𝐄𝐄𝐙
AI analytics platform transforming real customer feedback into actionable business insights.
𝐀𝐜𝐫𝐨𝐬𝐬 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬, 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐈’𝐯𝐞 𝐡𝐞𝐥𝐩𝐞𝐝 𝐛𝐮𝐢𝐥𝐝 𝐡𝐚𝐯𝐞:
➡ Onboarded 𝟱𝟬𝗞+ users
➡ Generated 𝟱𝟬𝗞+ books through AI pipelines
➡ Supported 𝟭𝟬+ hospitals
➡ Processed 𝟭𝟬𝗠+ legal case records
𝐌𝐲 𝐰𝐨𝐫𝐤 𝐭𝐲𝐩𝐢𝐜𝐚𝐥𝐥𝐲 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐬:
➡ MVP development
➡ SaaS architecture
➡ Full Stack Development using Next.js and Node.js
➡ AI / LLM integrations
➡ API Integration & Scalable Backend Systems
➡ Blockchain integrations when required
I take ownership seriously. I don’t just build features. I think about how the system will scale, how it will be maintained, and whether it actually solves the problem it was meant to solve.
If you’re building something and want a technical partner who cares about structure and long-term outcomes, I’m happy to connect. I also offer a free initial consultation to understand your goals before we move forward.
Muhammad Mujtaba R.
has worked
.
$5/hr
100%
Job Success
$40K+ earned
Available now
Start of list.
End of list.
Hello, I am Kazi Moriam, a Social media marketing (SMM) expert to manages Facebook, Instagram, Twitter, Pinterest, YouTube, Linkedin, and Lead Generation projects. I have a solid 3 years of experience in the field of managing Facebook, Instagram, Twitter, YouTube, Linkedin & Pinterest accounts. I guarantee you to deliver every possible output which is possible on Facebook, Instagram, Twitter, Pinterest, YouTube, Linkedin, and Lead Generation.
⭐⭐Platforms/Profiles we can manage:
👉Facebook (Business Page or Profile)
👉Instagram
👉Twitter
👉LinkedIn (Business Page or Profile)
👉Pinterest
👉Google My Business
⭐⭐What can I do for your social media pages?
👉Customized social media strategy.
👉Content creation (images, posts, graphics, and captions)
👉Growth optimization and daily maintenance
👉Hashtag research
👉Post scheduling
👉Approvals before posting
👉Brand development
👉Ad management
👉Engagement with Followers
My full-time availability is PST 8:am to 5:pm 40+ hours per week. Also, I am available at your required time. I am waiting for your invitation. I can give 100% effort to your project. I can do lots of work per week. I am trustworthy, a quick learner, proactive, and love to do hard work from my side to bring the best ROI.
❤️Looking forward to working with you.❤️ Thanks for your time.
Kazi Moriam F.
has worked
.
$20/hr
100%
Job Success
$40K+ earned
Start of list.
End of list.
🚀 Full Stack Developer | SaaS, AI & Mobile App Solutions
🔸 Top Rated Freelancer🔸 100% Job Success Score🔸 10+ Years of Experience🔸 $40K+ Earned on Upwork🔸 22 Completed Projects
I help startups and businesses build scalable digital products, from custom web applications and SaaS platforms to AI-powered solutions and mobile apps.
With over 10 years of hands-on development experience, I specialize in building reliable, secure, and high-performing applications using modern web and mobile technologies. My focus is not just writing code, but delivering production-ready systems that solve real business problems and support long-term growth.
I’ve worked with startups and growing businesses to build SaaS products, mobile applications, AI integrations, and custom business systems, helping them move from idea → MVP → scalable product.
💡 What I Can Help You With
✔ SaaS Platform Development
✔ Full Stack Web Application Development
✔ AI Integrations (OpenAI, Claude, Chatbots, Automation)
✔ Mobile App Development (iOS & Android)
✔ Laravel Development & Maintenance
✔ WordPress Development & Customization
✔ API Development & Third-Party Integrations
✔ Business Automation Systems
✔ Website Optimization & Performance Improvements
✔ Bug Fixing & Long-Term Support
⚙️ Core Technologies
Frontend:
JavaScript, HTML5, CSS3, Bootstrap, jQuery
Backend:
PHP, Laravel, CodeIgniter, WordPress
Mobile:
React Native, Flutter
AI & Automation:
OpenAI API, Claude integrations, AI chatbots, workflow automation
Database:
MySQL
Integrations:
REST APIs, Payment Gateways, CRM Systems, Third-Party Tools
Testing & QA:
Manual Testing, Functional Testing, Bug Reporting
🧠 My Approach
✔ Clear communication and structured project updates
✔ Requirement validation before development starts
✔ Clean, maintainable, and scalable code
✔ Performance-focused development
✔ Reliable delivery and long-term support
✔ Async-first workflow with strong collaboration
🚀 Industries I’ve Worked With
Transportation • E-commerce • Healthcare • Business Automation • Service Platforms
🤝 Who I Work Best With
✔ Startups building SaaS or AI-powered products
✔ Businesses automating workflows with AI
✔ Teams building mobile applications
✔ Companies needing scalable web platforms
✔ Clients looking for long-term maintenance and support
If you're looking for a reliable full stack developer for SaaS, AI integrations, mobile apps, or custom web applications, let’s connect and discuss your project.
$50/hr
100%
Job Success
$20K+ earned
Available now
Offers consultations
Start of list.
End of list.
🙏 Thank you for stopping by my profile. I truly appreciate you taking the time to find the right person to trust with your ideas – I know it isn’t easy. You’re here because you want someone who can bring your vision to life with clarity, confidence, and real results.
💡 I’ve been building software since I was a kid.
What began as pure curiosity quickly turned into a lifelong passion. Today, with over 15 years of experience as a Full-Stack Engineer, I’m all in on creating software solutions that go beyond code – solutions that think, adapt, and truly make a difference for your business.
I focus on building AI agents, automation systems, blockchain applications, and scalable full-stack products that don’t just work, but transform how companies operate. Whether it’s an AI-powered system that automates insurance assessments in seconds, a sales call mentor that boosts conversions, or a blockchain platform unlocking new revenue streams, everything I build is designed to move your business forward.
I believe in creating software with clarity, precision, and purpose. Clean architecture, proactive communication, and a focus on impact define every project I take on. Your goals become my focus, and I measure success by the growth, efficiency, and confidence my solutions create for you.
🌍 Over the years, I’ve worked with brands across multiple countries, helping startups and enterprises build products that stand out in competitive markets.
🤝 If you’re looking for someone who cares deeply about your vision and brings the expertise, dedication, and strategic thinking to build AI agents, automate workflows, or launch blockchain and web applications with confidence and impact – let’s connect.
$20/hr
100%
Job Success
$300K+ earned
Available now
Offers consultations
Start of list.
End of list.
Senior AI Engineer with 12 years of full-stack engineering behind me.
Top Rated Plus on Upwork — 100% Job Success across 60+ shipped projects
and 11,700+ billed hours.
I'm not an AI engineer who learned to code last year. I'm a senior
engineer who spent a decade shipping production SaaS — React, Node,
Python, Postgres, AWS — and evolved into AI because that's where the
hardest, most interesting problems are now. That foundation is why
my AI projects actually ship to production instead of dying as demos.
If you're building an AI product that needs to scale, handle real
users, integrate with real systems, and not bankrupt you on OpenAI
costs — that's the engineer you want.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
WHAT I BUILD
- Custom LLM applications — OpenAI, Anthropic Claude, open-source
models. Chatbots, copilots, document processors, classifiers,
summarization tools, content generation pipelines.
- RAG systems — retrieval-augmented generation over your private
documents, databases, or APIs. pgvector, Pinecone, Qdrant. Tuned
for accuracy, latency, and cost.
- AI agents — multi-step agents that use tools, call APIs, and
complete real work. LangChain, LangGraph, or custom orchestration
when frameworks get in the way.
- AI-powered SaaS — the full product, not just the AI piece. From
schema design to React frontend to OpenAI integration to
production deployment.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
RECENT PRODUCTION WORK
- AI Invoice Processor — automated financial data extraction at
scale. OCR + LLM pipeline. Processes thousands of invoices with
structured output and minimal human review.
- DatainsightAI — natural language interface over enterprise
analytics data. Users ask questions, AI returns charts and
insights.
- Insight AI — meeting intelligence platform. Transcription,
summarization, action item extraction, follow-up automation.
- HotSpotSEO — production SaaS with AI-generated content pipelines,
scheduled background jobs, and multi-tenant architecture.
- Visoshare — AI video summarization and transcription product.
OpenAI-powered, streaming responses, file upload pipelines.
- Healthcare research SaaS — RAG over HCP, patient, and care-
partner data. Multi-tenant on Auth0. Five product surfaces on a
shared schema.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
THE EVOLUTION
2013–2020: Backend & full-stack engineer. Production SaaS in
fintech, healthcare, e-commerce. Learned what "scale"
actually means.
2020–2023: Senior full-stack on Upwork — Next.js, React, Node,
Python, AWS. 60+ projects, 100% JSS, Top Rated Plus.
2023–today: AI engineer. Custom LLM apps, RAG systems, AI agents,
AI-powered SaaS. Same engineering rigor, applied to the
most interesting problem space in software today.
The engineering didn't change. The interface did. Today the
function call goes to OpenAI or Claude instead of just a database.
The system around it still needs to be built right — and that's
what most "AI developers" can't do.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TECH I SHIP WITH
AI: OpenAI, Anthropic Claude, LangChain, LangGraph, pgvector,
Pinecone, Hugging Face, prompt engineering, function
calling, structured outputs, evals, streaming.
Backend: Node.js, NestJS, Python, FastAPI, PostgreSQL, MongoDB,
Redis, REST, GraphQL.
Frontend: React, Next.js (App Router), TypeScript, Tailwind,
shadcn/ui.
Infra: AWS, Vercel, Docker, Cloudflare, CI/CD.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
HOW I WORK
The first 30 minutes are free. I'll tell you honestly whether your
idea needs AI or just better software, what's actually buildable in
your budget, and where the real risks are. If we're a fit, we move
forward. If not, you've still got a clearer picture than when we
started.
I work as a senior engineer directly with you — not an account
manager handing off to a junior. You communicate with me, I write
the code, you ship the product.
Available 30+ hours/week. Comfortable working async across US, EU,
and APAC time zones.
Ready when you are.
Siddharth M.
has worked
.
Associated with
Discover WebTech Private Limited
$500K+
earned
$15/hr
97%
Job Success
Available now
Start of list.
End of list.
I provide senior-level guidance on building, scaling, and optimizing modern web applications, SaaS platforms, MVPs, dashboards, admin panels, and AI-powered products. With 6 years of Full Stack development experience, I help founders, startups, and development teams make the right technical decisions, avoid costly mistakes, and accelerate product delivery.
🔧 Full-Stack Expertise I Deliver
MVP Development & Launch Readiness
React.js & Next.js Frontend Systems
Node.js / Express / MongoDB APIs / FastAPI Backends
Stripe, Lemonway, Hubtel Payment Integrations
Admin Panels & CRM Dashboards
Scalable SaaS Architecture
Third-Party Integrations & Automation
App Optimization & Refactors
KYC Flows, Auth, Multi-Tenancy, GDPR Compliance
Project Rescue & Tech Debt Reduction
AI App Development
MVP Planning & Technical Roadmaps
API Design (REST & GraphQL)
Database Design & Optimization
Authentication & Authorization
AWS, Vercel & Cloud Infrastructure
Performance Optimization & Scalability
AI Integrations (OpenAI, Claude, RAG, LangChain)
📌 Technologies I Use
Frontend: React, Next.js, TypeScript, Tailwind CSS, React Query
Backend: Node.js, Express, FastAPI, REST APIs, GraphQL
Databases: PostgreSQL, MongoDB, MySQL
AI: OpenAI, Claude, LangChain, RAG, Vector Databases
Cloud: AWS, Docker, Vercel, CI/CD
Payments: Stripe, Subscription Systems, Payment Gateway Integrations
🏥 Industries I've Helped Build In
SaaS & Startups • Fintech & Insurtech • AI, DeepTech & Automation • Crypto, Web3 & Blockchain • HealthTech & Digital Health • Real Estate & PropTech • E-commerce, Retail & Marketplaces • Logistics & Fleet • LegalTech & Compliance • Social Platforms & Non-Profits • EdTech & E-Learning • FoodTech & Hospitality • CleanTech & Energy • GovTech & Public Sector
🧭 My Approach
Understand Requirements → Review Architecture → Identify Risks → Recommend Solutions → Create Actionable Roadmap
Let's turn your vision into reality, together. 🤝
Full Stack Developer • Senior Full-Stack Engineer • React Developer • Next.js Expert • Node.js Developer • AI Web Developer • TypeScript Engineer • Frontend Developer • Backend Developer • Full Stack Consultant • SaaS MVP Developer • Web Application Developer • Solution Architect • Stripe Integration • Payment Gateway Integration • Subscription SaaS • KYC Flows • AWS Lambda • Vercel Deployment • Docker • CI/CD • Multi-Tenancy • GDPR Compliance • MVP Development • B2B SaaS • Dashboard & Admin Panels • Technical Audit • Project Rescue • Tech Debt Reduction • App Refactoring • Scalable Systems • Technical Roadmap
$10/hr
96%
Job Success
$5K+ earned
Start of list.
End of list.
2D artist (crisPlease). Responsible and purposeful person. I can create unique characters, objects, icons, items, environments, animation sprite sheets.
I am working in Illustrator, Photoshop, and SAI. Mostly in Illustrator to provide vector graphics.