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$25/hr
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𝗜’𝗺 𝗮 𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 9+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐫𝐞𝐚𝐝𝐲, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐦𝐨𝐛𝐢𝐥𝐞/𝐰𝐞𝐛, 𝐒𝐚𝐚𝐒, 𝐚𝐧𝐝 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 for startups, SaaS companies, and enterprises. I help teams ship clean MVPs, evolve them into full-scale production systems, and scale them with confidence.
My work spans frontend, backend, APIs, AI/LLM integrations, cloud infrastructure, DevOps, and deployment, delivering multi-tenant SaaS platforms, internal dashboards, admin panels, public-facing apps, automation systems, and high-traffic production web applications.
🚀 𝐈 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐢𝐧 𝐏𝐲𝐭𝐡𝐨𝐧 (𝐅𝐚𝐬𝐭𝐀𝐏𝐈), 𝐍𝐨𝐝𝐞.𝐣𝐬 (𝐄𝐱𝐩𝐫𝐞𝐬𝐬, 𝐍𝐞𝐬𝐭𝐉𝐒), 𝐑𝐮𝐛𝐲 𝐨𝐧 𝐑𝐚𝐢𝐥𝐬 𝐰𝐢𝐭𝐡 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬, 𝐍𝐞𝐱𝐭.𝐣𝐬 (𝐀𝐩𝐩 𝐑𝐨𝐮𝐭𝐞𝐫), 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭, 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭, building API-first, scalable, maintainable systems backed by 𝐏𝐨𝐬𝐭𝐠𝐫𝐞𝐒𝐐𝐋, 𝐒𝐮𝐩𝐚𝐛𝐚𝐬𝐞, 𝐏𝐫𝐢𝐬𝐦𝐚, 𝐌𝐲𝐒𝐐𝐋, 𝐌𝐨𝐧𝐠𝐨𝐃𝐁.
I’ve worked extensively on 𝐒𝐚𝐚𝐒 𝐌𝐕𝐏𝐬, 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐰𝐞𝐛 𝐚𝐩𝐩𝐬, 𝐋𝐋𝐌-𝐛𝐚𝐬𝐞𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬, 𝐒𝐭𝐫𝐢𝐩𝐞 𝐛𝐢𝐥𝐥𝐢𝐧𝐠 𝐬𝐲𝐬𝐭𝐞𝐦𝐬, 𝐢𝐧𝐭𝐞𝐫𝐧𝐚𝐥 𝐭𝐨𝐨𝐥𝐬, 𝐝𝐚𝐬𝐡𝐛𝐨𝐚𝐫𝐝𝐬, 𝐚𝐧𝐝 𝐞𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐧𝐠 𝐎𝐩𝐞𝐧𝐀𝐈 𝐀𝐏𝐈, Anthropic, LangChain, Langflow, automation pipelines, structured LLM outputs, and background processing into real production environments.
𝐖𝐡𝐞𝐭𝐡𝐞𝐫 𝐲𝐨𝐮’𝐫𝐞:
Building a production-ready MVP
Scaling a Next.js + TypeScript SaaS
Developing AI / LLM-powered applications
Creating FastAPI or Node.js backends
Implementing Stripe subscriptions, usage-based billing, or webhooks
Migrating, refactoring, or stabilizing an existing system
I focus on clean architecture, performance, scalability, and long-term maintainability.
✅ 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 / 𝐒𝐚𝐚𝐒 / 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫
🏅 Senior Full Stack Developer (product-minded, ownership-driven)
🏅 Strong Next.js, React, TypeScript, API-first expertise
🏅 Backend experience with Rails, FastAPI, Express, NestJS
🏅 AI & LLM integrations (OpenAI, Anthropic, LangChain, Langflow)
🏅 6+ years of production engineering
🏅 Built and supported 50+ SaaS, AI, FinTech, and web products
𝐅𝐫𝐨𝐦 𝐌𝐕𝐏 𝐭𝐨 𝐅𝐮𝐥𝐥-𝐒𝐜𝐚𝐥𝐞 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧
I design, build, and deploy scalable SaaS architectures, REST & JSON APIs, AI pipelines, dashboards, and admin systems using Ruby on Rails, FastAPI, Node.js, React, Next.js, and TypeScript.
I follow clean coding and testing practices (RSpec, Jest), build responsive, mobile-first, pixel-perfect UIs with HTML5, CSS3, Tailwind CSS, Bootstrap, and deploy to modern cloud environments.
🔹 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝
• React.js, Next.js (SSR, SSG, App Router)
• JavaScript, TypeScript
• HTML5, CSS3
• Tailwind CSS, Bootstrap
• Dashboards, admin panels, tables, forms, responsive UI
🔹 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 / 𝐀𝐏𝐈𝐬 / 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞
• Node.js, Express, NestJS
• Python, FastAPI
• Ruby on Rails (ROR)
• REST APIs, JSON APIs, GraphQL
• Authentication & Authorization (JWT, OAuth2)
• Webhooks, background jobs, queues
• Microservices, event-driven architecture
🔹 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐂𝐚𝐜𝐡𝐢𝐧𝐠
• PostgreSQL, Supabase
• MySQL, MongoDB
• Prisma
• Redis, Sidekiq
• Advanced data modeling, indexing, performance optimization
🔹 𝐀𝐈 / 𝐋𝐋𝐌 / 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧
• OpenAI API, Anthropic
• LangChain, Langflow
• LLM-powered features & automation
• Prompt orchestration, structured outputs
• AI pipelines integrated into production apps
🔹 𝐏𝐚𝐲𝐦𝐞𝐧𝐭𝐬 & 𝐒𝐚𝐚𝐒
• Stripe (Checkout, Subscriptions, Webhooks, Billing Portals)
• Usage-based billing, pricing logic
• Secure payment flows
🔹 𝐂𝐥𝐨𝐮𝐝, 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭
• AWS, S3 / Cloud Storage
• Vercel, Render, Fly. io, Firebase, Heroku
• GCP, DigitalOcean
• Kubernetes
• Docker, CI/CD pipelines
• Git (version control)
• Environment configuration & scalable deployments
𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞
✔ Product-minded Full Stack Engineer
✔ Production-ready & scalable mindset
✔ Clear communication & ownership
✔ Fast iteration without sacrificing code quality
✔ Long-term maintainability over short-term hacks
Let’s build a scalable, production-ready mobile/web or AI application that’s ready for real users and real growth.
𝐈’𝐦 𝐚𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞
Muhammad Nouman M.
has worked
.
United States
$60/hr
100%
Job Success
Available now
Offers consultations
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🚀 Senior AI Engineer specializing in production AI systems, LLM integrations, and intelligent automation
I’m a senior software engineer with 15+ years of experience building and shipping real-world systems, now focused on AI agents, LLM-powered products, and automation that deliver immediate business value.
I help startups and growing companies design, build, and deploy AI features fast.
What I specialize in:
🧠 AI Agents & Multi-Agent Systems (Custom GPTs, tools, memory, orchestration)
🤖 LLM Integrations (OpenAI, Anthropic, Hugging Face)
⚙️ Automation & AI Workflows (internal tools, ops, content, support, data pipelines)
📚 RAG Systems (knowledge bases, search, document intelligence)
🚀 Production AI APIs (FastAPI/Flask, async, scalable, secure)
Tech stack (production-first):
Python · OpenAI / Anthropic · LangChain · FastAPI · Flask · SQL · Vector DBs · Docker · AWS/GCP · Git · Postgres · Redis
If you need an AI engineer who can turn an idea into a working system quickly, I’m your guy.
Let’s build something useful — and ship it. 🚀
Matthew T.
has worked
.
$40/hr
$1K+ earned
Available now
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I specialize in building scalable backend systems using Ruby, PHP, and Node.js, with a strong focus on performance and reliability.
I develop efficient SaaS applications and API driven platforms leveraging Redis and modern architecture patterns.
My work focuses on backend-heavy product development across SaaS platforms, eCommerce systems, internal business tools, and API-first applications. I build maintainable service layers, subscription logic, payment flows, real time features, and data driven backend systems that support stable production workloads and long term product growth.
Core Skills
- Backend Development
* Ruby, Ruby on Rails
* Node.js, Express.js
* PHP, Laravel
* REST API development
* GraphQL APIs
* Authentication and authorization
* Background job processing
* Queue based workflows
* Webhook integrations
- SaaS and eCommerce
* SaaS platform development
* eCommerce backend systems
* Subscription platforms
* Stripe integration for payments, billing, and checkout flows
* Admin dashboards and business logic modules
* Third party service integrations
- Caching, Realtime, and Search
* Redis for caching, queues, sessions, and real-time workflows
* WebSockets for live updates and event driven features
* Elasticsearch for search and indexing
* ELK stack for logging, monitoring, and operational visibility
* Firebase for real time data support, authentication, and connected services
- Database and Data Systems
* PostgreSQL
* MySQL
* MongoDB
* Data modeling
* Query optimization
* Service to database integration
- Cloud, DevOps, and Deployment
* AWS deployment and cloud infrastructure
* CI/CD pipelines and automated deployment workflows
* Docker and Linux server environments
* Monitoring, performance tuning, and production stability
- Supporting Frontend
* JavaScript, React, HTML, CSS
* API connected user interfaces
I focus on building backend systems that are fast, stable, and easy to extend, with clean architecture, reliable service behavior, and production ready integrations across payments, cloud infrastructure, search, and real time application features.
$75/hr
94%
Job Success
Available now
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I build production-ready software that scales — not just prototypes that break after launch.
I’m a Full Stack Developer with 12+ years of experience and 13,000+ hours worked, helping startups and growing businesses turn ideas into reliable, high-performance applications. I’ve worked with companies and brands like SEARS, Microsoft, Amazon, and collaborated on projects associated with Tony Robbins & Dean Graziosi.
I specialize in Ruby on Rails, MERN stack, and AI-powered systems, with a strong focus on clean architecture, speed, and long-term maintainability.
I actively use AI-assisted development tools like Claude, Cursor, and GitHub Copilot to accelerate delivery, reduce bugs, and ship features faster — without compromising code quality. This translates into faster turnaround, better-tested systems, and more value for your budget.
Over the years, I’ve built SaaS platforms, marketplaces, fintech systems, AI-driven applications, and high-traffic web products. I don’t just write code — I think like a product owner and help you make the right technical decisions from day one.
Here’s what I can help you with:
• Full Stack Development (React, Next.js, Node.js, Ruby on Rails)
• MERN Stack Applications (MongoDB, Express, React, Node)
• AI & ML Integrations (OpenAI, Claude, RAG systems, automation)
• SaaS Product Development (multi-tenant, scalable systems)
• API Development & Integrations (Stripe, Twilio, third-party services)
• DevOps & Cloud (AWS, Docker, CI/CD, scalable deployments)
• Performance Optimization & System Architecture
• Legacy System Refactoring and Scaling
Why clients choose to work with me:
• 13,000+ hours delivering real-world production systems
• Faster delivery using AI-assisted workflows
• Clean, maintainable, and scalable code
• Clear communication and proactive updates
• Ability to take full ownership of projects
• Strong focus on business outcomes, not just code
Whether you’re building an MVP, scaling an existing product, or integrating AI into your platform, I can step in and deliver without hand-holding.
If you’re looking for someone who can move fast, think strategically, and build things the right way — let’s talk.
Hamza K.
has worked
.
Associated with
iSOFTSTUDIOS LLC
$15/hr
100%
Job Success
$40K+ earned
Available now
Start of list.
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I’m a Senior Full-Stack Developer (Ruby on Rails, React, Next.js, Vue, Node.js) with 8+ years of experience building scalable SaaS platforms, dashboards, SPAs, and eCommerce applications.
I help businesses turn ideas into high-performance web applications that are fast, reliable, and built to scale. My approach combines modern frontend experiences with strong backend architecture—and now AI-powered capabilities—to deliver real business impact, not just code.
✅ What I Deliver:
● Modern Frontend Development
Building responsive, high-performance UIs using React, Next.js, Vue, and TailwindCSS.
● Scalable Backend Systems
Developing robust APIs and backend logic with Ruby on Rails and Node.js.
● SaaS & Dashboard Development
Designing and delivering complex platforms with clean UX and efficient data handling.
● AI Integration & Automation
Integrating GPT/OpenAI APIs and building AI-powered workflows for SaaS and enterprise apps.
– Developed AI chatbots that reduced customer response time by up to 50%
– Built GPT-powered features that improved user engagement and reduced support load
● Cloud & DevOps
Setting up CI/CD pipelines (GitHub Actions, Docker) and deploying on AWS & Heroku.
● Database & Performance Optimization
Working with PostgreSQL, MySQL, MongoDB, and Redis for speed, scalability, and reliability.
● Third-Party Integrations
Stripe, payment gateways, APIs, and Google services seamlessly integrated.
💼 Domain Experience:
● SaaS Platforms – Scalable apps with AI-powered workflows and smart automation.
● eCommerce & Retail Tech – AI-driven recommendations and automated processes.
● Dashboards & Analytics – Interactive, data-driven dashboards with real-time insights.
⭐ What You Can Expect:
● Clean, maintainable, and scalable code
● Fast communication & reliable delivery
● Strong problem-solving mindset
● Long-term support and collaboration
🚀 Let’s build something that not only works—but scales with your business.
Kanchan K.
has worked
.
$25/hr
100%
Job Success
$80K+ earned
Available now
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🏆 Top Rated Plus Full Stack & Mobile App Developer | React Native Developer | Web App Development | iOS & Android Development | Hybrid App Developer | Node.js | Next.js | 𝟖+ 𝐘𝐞𝐚𝐫𝐬 𝐨f 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐑𝐚𝐭𝐞 | 𝐓𝐨𝐩 𝐑ated Plus
Helping startups, entrepreneurs, and enterprises build scalable, high-performance web and mobile applications. As an expert Full-Stack Developer with over 8 years of experience, I specialize in React Native for cross-platform mobile development and robust backend systems to deliver production-ready, feature-rich solutions.
Whether you need a brand-new MVP built from scratch or a skilled engineer to collaborate with a large development team on complex architectures, I provide high-quality results, full-time availability, and excellent communication.
𝐓echnology 𝐒tack & 𝐄xpertise
✔️ Mobile App Development: React Native, Expo, Hybrid App Development, iOS & Android Deployment, Ionic Framework
✔️ Frontend Web Development: React.js, Next.js, Vue.js, Nuxt.js, TypeScript, HTML5, CSS3, Bootstrap
✔️ Backend & API Development: Node.js, NestJS, Express.js, Ruby on Rails, Laravel, Python, Django, RESTful APIs, GraphQL
✔️ Databases & DevOps: PostgreSQL, MySQL, MongoDB, Oracle, MariaDB, CouchDB, Neo4j, Docker, Heroku, Linux Server Administration
✔️ Project Workflows: Git (GitHub, BitBucket, GitLab), Jira, Trello, Asana, CI/CD pipelines
𝐈ndustries & 𝐀pplications
I bring a wealth of experience in building end-to-end applications across diverse domains:
• E-commerce & Marketplace Platforms
• On-Demand & Delivery Services
• SaaS Web & Mobile Applications
• FinTech & Secure Payment Apps
• Healthcare & Booking Systems
• Social Networking & Real-Time Chat Apps
• Custom Enterprise Management Systems
𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐆𝐞𝐭 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞
✔ 8+ Years of Proven Industry Experience: Deep technical expertise across the entire development lifecycle.
✔ 100% Job Success Rate: A track record of elite performance, reliability, and high client satisfaction.
✔ Full-Time Availability: Dedicated support with a response time of under 30 minutes.
✔ Clean & Scalable Architecture: Secure, maintainable code optimized for performance and future growth.
✔ Intuitive UI/UX Focus: Ensuring seamless, engaging user experiences for both mobile and web.
📩 Have a project in mind? Send me a message with your app idea, feature list, or project requirements. Let's collaborate on Upwork to bring your digital vision to life!
Best Regards,
Mohit K.
𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐞𝐝 𝐒𝐤𝐢𝐥𝐥𝐬:
Mobile App Development | React Native Developer | Full Stack Developer | Web App Development | iOS App Development | Android App Development | Hybrid App Development | Cross-Platform Developer | React Native App Development | Node.js | Next.js | NestJS | TypeScript | Frontend Development | Backend Development | API Integration | REST API | UI/UX Design | MVP Development | Database Management | PostgreSQL | MongoDB | MySQL | Docker | Startup App Development | Enterprise Software | App Deployment | Git
Associated with
Code Garage Tech Pvt. Ltd.
$35/hr
100%
Job Success
$40K+ earned
Available now
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Top Rated Plus - 7+ Years on Upwork
I build AI systems that actually answer correctly, not chatbots that hallucinate and embarrass you in front of users. RAG pipelines, multi-agent workflows, and LLM apps that ground every response in your real data. If your AI needs to be reliable enough to put in front of customers or run inside your business, you're in the right place.
Most "AI projects" fail for the same reason: a demo that works once gets shipped as a product, then falls apart on real queries. I build for the second case, not the first.
What I do:
- RAG systems: retrieval pipelines that pull the right context every time, with chunking, re-ranking, and citation so answers are grounded and traceable
- Multi-agent orchestration: LangGraph-based agents that plan, call tools, and hand off work, built to recover from failure instead of looping forever
- LLM integration: OpenAI, Anthropic (Claude), and Hugging Face models wired into your stack with cost and latency controls
- Vector databases: Pinecone, Weaviate, Qdrant, Chroma (schema design, embedding strategy, hybrid search, index tuning)
- Prompt engineering: structured prompts, evals, and guardrails that make output consistent instead of lucky
- Fine-tuning: domain adaptation when prompting isn't enough, with honest advice on when it's worth the cost and when it isn't
- NLP: spaCy pipelines for extraction, classification, entity recognition, and text processing at scale
- Embeddings: model selection, chunking strategy, and retrieval tuning for accuracy that holds up in production
My stack at a glance:
Python, LangGraph, LlamaIndex, OpenAI, Anthropic, Hugging Face, Pinecone, Weaviate, Qdrant, Chroma, spaCy, embeddings, prompt engineering, fine-tuning, multi-agent orchestration, RAG, NLP
How we'll work:
- We talk through the real problem (not just "add AI to it")
- I scope it honestly: approach, timeline, cost, and where the accuracy risks are
- I build in clear milestones with evals so you can see it actually working, not just demoing
- You get clean, documented, tested code you own completely
Ready when you are.
Associated with
Qbatch
$1M+
earned
United Kingdom
$60/hr
100%
Job Success
$300K+ earned
Offers consultations
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Industry Expert Software Developer - Previously @ IBM, Microsoft
Expert Vetted, Top Rated Developer | Scalable, Clean, Documented Code Always
Technologies:
- MongoDB, ExpressJS, React, NodeJS
- React Native, Swift, Flutter
- Python, Ruby, Ruby on Rails, PHP
- .NET, C#, ASP.NET
- OpenAI, LLM, Generative A.I
Let's connect and discuss your project.
Aymen B.
has worked
.
$18/hr
100%
Job Success
Available now
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🏆 Top Rated Plus Upwork Freelancer
⭐ Trusted by Startups & Growing Businesses
🤝 Long-Term Technology Partner
🤖 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 | 𝗥𝗔𝗚 | 𝗠𝗖𝗣 | 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗔𝗜 𝗦𝗮𝗮𝗦
I help startups and businesses design, develop, and scale production-ready AI applications that solve real business problems. From AI agents, RAG systems, and MCP integrations to AI workflow automation, AI voice solutions, and AI-powered SaaS platforms, I build end-to-end products that integrate seamlessly with existing systems and workflows.
My expertise goes beyond connecting LLM APIs. I engineer intelligent AI systems that can reason, retrieve knowledge, use external tools, automate complex business processes, and deliver reliable, scalable solutions that create measurable business value in production.
With 9+ years of full-stack engineering experience, I've built and scaled SaaS platforms, AI products, internal business systems, and cloud-native applications used by startups and growing companies. I understand not only how to integrate LLMs, but also how to design the surrounding architecture that makes AI systems secure, reliable, and maintainable.
𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱
🤖 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀 & 𝗔𝗴𝗲𝗻𝘁𝗶𝗰 𝗦𝘆𝘀𝘁𝗲𝗺𝘀
• AI Customer Support Agents
• AI Sales & Lead Qualification Agents
• AI Research Assistants
• Multi-Agent Systems
• AI Voice Agents
• AI Workflow Automation
• RAG Knowledge Bases
• MCP Server Integrations
• Tool Calling & Function Calling
• OpenAI & Claude Integrations
• Structured LLM Outputs
• Prompt Engineering
• LangGraph & Agentic Workflows
• AI Document Processing
• Semantic Search
🚀 AI-Powered SaaS Applications
I build complete AI-powered web applications from architecture to deployment.
This includes:
• AI SaaS Products
• Internal Business Platforms
• AI Dashboards
• Knowledge Management Systems
• AI Search
• AI Chat Interfaces
• Multi-Tenant SaaS
• Subscription Platforms
• Admin Portals
• API Platforms
⚙️ Backend Engineering
• Python (FastAPI, Django)
• Ruby on Rails
• Node.js / NestJS
• REST APIs
• GraphQL APIs
• PostgreSQL
• Redis
• MongoDB
• Background Jobs
• Event-Driven Systems
• Webhooks
• Stripe & Stripe Connect
• Authentication & RBAC
• Microservices
🌐 Frontend
• React
• Next.js
• TypeScript
• Vue.js
• Tailwind CSS
• Responsive UI
• Progressive Web Apps
☁️ Cloud & Infrastructure
• AWS
• Google Cloud
• Docker
• Serverless Deployments
• CI/CD Pipelines
• PostgreSQL
• pgvector
• Pinecone
• Redis
• Monitoring & Logging
Recent Projects
AI Customer Support Platform
Built an AI-powered customer support platform combining AI voice agents, RAG, and external integrations. The system handled inbound customer conversations, retrieved company knowledge in real time, executed business workflows, and significantly reduced the need for manual support.
AI Legal SaaS Platform
Designed and developed a multi-tenant LegalTech platform with secure authentication, Stripe Connect billing, webhook infrastructure, document management, and role-based access control for enterprise customers.
AI Financial Analytics Platform
Developed scalable backend services processing high-volume cryptocurrency market data using asynchronous pipelines, exposing analytics through secure APIs and real-time dashboards.
AI Workflow Automation
Built intelligent workflows that connected LLMs with external APIs, business systems, and internal tools, allowing AI agents to perform complex multi-step tasks autonomously.
Technologies
Artificial Intelligence
OpenAI • Claude • LangGraph • LangChain • LlamaIndex • MCP • RAG • Function Calling • Tool Calling • Prompt Engineering • AI Automation • AI Agents • Semantic Search • Vector Databases
Backend
Python • FastAPI • Django • Ruby on Rails • Node.js • NestJS
Frontend
React • Next.js • TypeScript • Vue.js • Tailwind CSS
Databases
PostgreSQL • pgvector • Pinecone • Redis • MongoDB
Infrastructure
AWS • Docker • CI/CD • Serverless • REST APIs • GraphQL • Stripe • GitHub Actions
How I Work
I don't just build features. I help clients make sound technical decisions that will still make sense a year from now.
That means thinking carefully about architecture, scalability, maintainability, security, and the overall product strategy before writing code. Whether it's designing an AI agent, integrating OpenAI or Claude into an existing platform, building a scalable SaaS application, or modernizing backend infrastructure, I focus on delivering solutions that are reliable, practical, and built for long-term growth.
If you're looking for someone who understands both AI engineering and product development, I'd be happy to discuss your project.
#lovable #lovabledeveloper #aiproductbuilding
$20/hr
$300+ earned
Start of list.
End of list.
🌐 Full-Stack Web Developer | Ruby on Rails • React • Next.js
💡 4+ Years Experience | 📂 20+ Completed Projects | 🚀 Scalable Solutions
Hi there! I’m Ahtasham Naeem, a full-stack developer who builds robust, secure, and high-performance web applications from the ground up.
I specialize in seamless front-end and back-end integration, delivering systems that scale and create outstanding user experiences.
🔑 What I Deliver
Back-End Development (Ruby on Rails)
RESTful APIs & Modular Design – Clean, maintainable architecture for long-term growth.
Database Optimization – High-speed PostgreSQL/MySQL schemas and query tuning.
Background Processing – Sidekiq & Redis for scalable, reliable job handling.
Real-Time Features – Live interactions using WebSocket and ActionCable.
Third-Party Integrations – Stripe, Google APIs, and other secure integrations.
Cloud Deployment & CI/CD – AWS Beanstalk, GitHub Actions, and CircleCI for automated releases.
🎨 Front-End Development (React, Next.js)
Modern Interfaces – Responsive, dynamic apps with React and Next.js.
Clean, Modern Code – JavaScript (ES6+), TypeScript, and jQuery for long-term reliability.
State Management – Redux and Axios for smooth data flow.
Mobile-First Design – HTML5, CSS3, Sass, and Tailwind for pixel-perfect UIs.
Performance Optimization – Lazy loading, code splitting, and SEO best practices for speed.
⚡ Why Clients Choose Me
✅ Outcome-Driven: Applications that increase engagement, sales, and scalability.
🛡️ Security Focused: Best practices, validation, and encryption to keep data safe.
🤝 Collaborative & Transparent: Clear updates and open communication via Jira, Trello, and Slack.
🌟 Recent Wins
Client Management Platform – Scaled to 20,000+ active users with zero downtime.
Custom E-Commerce Solution – Increased sales by 33% through optimized APIs and front-end performance.
✨ If you’re looking for a reliable full-stack developer who can handle everything from server architecture to pixel-perfect UI, let’s connect and bring your vision to life!