You will get Senior Full Stack Developer | React.js | Next.js | Node.js
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Top Rated
Project details
🚀 Looking for an AI Engineer to build a scalable AI-powered backend, AI Agents, Generative AI application, or LLM-powered API?
You’re in the right place!
As an AI Engineer and Generative AI Engineer, I specialize in building secure, scalable, and production-ready AI backends that power AI applications, AI Agents, AI chatbots, and intelligent automation systems. As an AI Engineer, I leverage OpenAI, ChatGPT, GPT-4, Claude, LangChain, LangGraph, RAG, Vector Databases, and NLP to create enterprise-grade AI solutions.
✅ What I Offer as an AI Engineer:
=> AI API Development & LLM Integration
=> AI Agents & Multi-Agent Systems
=> Generative AI Application Development
=> OpenAI, ChatGPT, GPT-4 & Claude Integration
=> RAG (Retrieval-Augmented Generation) Systems
=> AI Workflow Automation & Intelligent Automation
=> Custom AI Assistants & AI Chatbots
=> Vector Database & Knowledge Base Integration
=> Scalable AI Backend Architecture
=> Cloud Deployment & AI Infrastructure
Technologies I Use:
• OpenAI API
• ChatGPT & GPT-4
• Claude
• RAG
• Vector Databases
• Python
• FastAPI
• Node.js
📩 Ready to work with an experienced AI Engineer? Let's build a powerful AI solution together!
You’re in the right place!
As an AI Engineer and Generative AI Engineer, I specialize in building secure, scalable, and production-ready AI backends that power AI applications, AI Agents, AI chatbots, and intelligent automation systems. As an AI Engineer, I leverage OpenAI, ChatGPT, GPT-4, Claude, LangChain, LangGraph, RAG, Vector Databases, and NLP to create enterprise-grade AI solutions.
✅ What I Offer as an AI Engineer:
=> AI API Development & LLM Integration
=> AI Agents & Multi-Agent Systems
=> Generative AI Application Development
=> OpenAI, ChatGPT, GPT-4 & Claude Integration
=> RAG (Retrieval-Augmented Generation) Systems
=> AI Workflow Automation & Intelligent Automation
=> Custom AI Assistants & AI Chatbots
=> Vector Database & Knowledge Base Integration
=> Scalable AI Backend Architecture
=> Cloud Deployment & AI Infrastructure
Technologies I Use:
• OpenAI API
• ChatGPT & GPT-4
• Claude
• RAG
• Vector Databases
• Python
• FastAPI
• Node.js
📩 Ready to work with an experienced AI Engineer? Let's build a powerful AI solution together!
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$100
|
Standard
$500
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 3 days | 8 days | 12 days |
Number of Revisions | 1 | 3 | Unlimited |
Number of Pages | 1 | 5 | 15 |
Design Customization | |||
Content Upload | - | ||
Responsive Design | - | ||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $70
Additional Revision
+$100
Additional Page
(+ 1 Day)
+$50Frequently asked questions
5 reviews
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SB
S B.
May 29, 2026
Temporary support - Fix the Bugs
Devansh is a highly skilled Full Stack Developer who did an excellent job working on our SQL Server meal-planning system and related integrations. He quickly understood a very large and complex stored procedure architecture and was able to work confidently across backend logic, APIs, and supporting application workflows.
He helped identify and resolve issues related to recipe rotation, blacklist consistency, and overall workflow stability while maintaining clean and reliable code. What stood out most was his proactive approach and problem-solving mindset. He didn’t just complete assigned tasks — he took the time to understand the system deeply and suggested practical improvements that added real value to the project.
Devansh is professional, communicative, and easy to work with throughout the engagement. His combination of strong backend, database, and full stack development skills made a significant impact, and I would confidently recommend him to anyone looking for a dependable Full Stack Developer.
He helped identify and resolve issues related to recipe rotation, blacklist consistency, and overall workflow stability while maintaining clean and reliable code. What stood out most was his proactive approach and problem-solving mindset. He didn’t just complete assigned tasks — he took the time to understand the system deeply and suggested practical improvements that added real value to the project.
Devansh is professional, communicative, and easy to work with throughout the engagement. His combination of strong backend, database, and full stack development skills made a significant impact, and I would confidently recommend him to anyone looking for a dependable Full Stack Developer.
IS
IT S.
May 13, 2026
Dynamic Configuration Tool
Devansh is a skilled Full Stack Developer who delivered solid work throughout the project. He handled both frontend and backend tasks effectively and showed good technical knowledge, problem-solving skills, and attention to detail.
He communicated clearly during the project, was receptive to feedback, and delivered tasks on time. Working with him was professional and smooth overall.
He communicated clearly during the project, was receptive to feedback, and delivered tasks on time. Working with him was professional and smooth overall.
AM
Ashish M.
Mar 31, 2026
Contract for Milestone1
Devansh is great to work with. He had a great UI/UX that he showcased for our solution. Really liked working with him. Will defiantly use him again in the future.
AM
Ashish M.
Nov 24, 2025
🛡️ Build GovShield iQ — an AI-Driven Phishing & Compliance Dashboard for Government Agencies
Devansh is great to work with. I'd highly recommend him for any Fullstack development, UI development work.
KS
Kate S.
Oct 15, 2025
Full Stack Developer (React + Node.js) – Fix Scheduling Module Crashing in Learning Management
Devansh did an excellent job fixing a critical issue in our LMS Scheduling Module. He quickly identified the root cause, implemented a stable solution, and ensured everything ran smoothly without affecting other parts of the system. Devansh has Great communication, deep technical expertise, and very reliable , highly recommended!
About Devansh
AI Developer
100%
Job Success
Kadi, India - 6:24 am local time
🔴 I am in the 𝗧𝗼𝗽 𝟭𝟬% as a AI Developer & Full-Stack Developer overall on Upwork.
Hey there! 👋 I'm Dvansh, an Full Stack & AI Developer with 6+ years of experience building scalable web applications. As a AI Developer I specialize in AI-powered applications, SaaS platforms, automation, and intelligent web solutions. I handle AI integration, frontend, backend, databases, and cloud, so you work with one AI Developer instead of an entire team.
✅ 100% Job Success
✅ 1300+ Billed Hours as a AI Developer
✅ 6+ Years Professional Experience as a AI Developer
✅ AI + SaaS + Enterprise Applications
✅ Full Stack Frontend + Backend + Cloud
🤖 𝗔𝗜 & 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀:
🔹 OpenAI API, LLM integrations, AI assistants, AI agents, AI-powered workflows, RAG applications, intelligent search, AI automation, prompt engineering, MCP integrations
🔹 n8n, Zapier, Make and API-driven automation for connecting AI with real business processes
🔹 Production-focused AI integration with authentication, databases, APIs, business logic and scalable application architecture
🖥️ 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗦𝗸𝗶𝗹𝗹𝘀:
🔹 React.js, Next.js, Angular, TypeScript, JavaScript, Redux, RxJS, Tailwind CSS, Bootstrap, MUI
🔹 C#, .NET 8, ASP.NET Core, Node.js, NestJS, Express.js, REST APIs, Entity Framework Core
🔹 SQL Server, Azure SQL, PostgreSQL, MySQL, MongoDB, Redis
🔹 SaaS platforms, enterprise applications, CRM systems, dashboards, booking platforms, customer portals and business automation systems
☁️ 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀:
🔹 Microsoft Azure, Azure App Services, Azure SQL, Blob Storage, Key Vault, AWS, DigitalOcean
🔹 GitHub, Bitbucket, Azure DevOps, GitHub Actions, CI/CD, Docker and production deployments
⚡ 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 & 𝗦𝗰𝗮𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆:
🔹 Redis caching, HTTP caching, ETags, conditional requests, database optimisation, API performance and scalable architecture
🔹 Experience improving production systems from slow, database-heavy applications to fast, cache-optimised platforms
🔹 Authentication, authorisation, 2FA, monitoring, error handling and secure production architecture
🚀 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗕𝘂𝗶𝗹𝗱:
🔹 AI-powered SaaS products
🔹 AI assistants, agents and automation
🔹 Full-stack web applications
🔹 Multi-tenant SaaS platforms
🔹 Booking & reservation systems
🔹 Admin dashboards & CRM platforms
🔹 REST APIs & third-party integrations
🔹 Enterprise applications
🔹 Legacy system modernisation
🔹 High-performance and scalable cloud applications
🏆 Why Clients Work With Me as a AI Developer
🔹 Full-stack ownership from architecture to deployment
🔹 Production-focused development rather than prototype-only solutions
🔹 Strong communication and long-term collaboration
🔹 Comfortable working with existing codebases and complex business requirements
🔹 Focus on maintainability, scalability, security and performance
I don't just write code - I help turn business requirements into reliable, scalable software. Whether you're building a new AI product, developing a SaaS platform, modernising an existing application, or adding AI capabilities to your current system, I can help take it from architecture to production.
𝗟𝗲𝘁'𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆. 🚀
AI Developer | Agentic AI Developer | Voice Agents | CrewAI | AutoGen | Amazon Polly | Deepgram | Rasa AI | Riverside SDK | Azure AI Speech | OpenAI Agents | MCP | Vapi | Retell AI | ElevenLabs | Whisper | LiveKit | Pipecat | AI Developer | LLM | Generative AI | OpenAI | GPT Models | Claude | Gemini | Azure OpenAI | Amazon Bedrock | LLM Applications | AI Chatbots | AI Assistants | AI Automation | AI Integrations | AI Developer | PEFT | LoRA | QLoRA | RLHF | DPO | SFT | Unsloth | Axolotl | Hugging Face AutoTrain | SageMaker Training | LLaMA 3 | Mistral 7B | Mixtral 8x7B | Falcon | Gemma | BLOOM | Orca Mini | Guanaco | Qwen | DeepSeek | Phi | AI Developer | vLLM | TGI | TensorRT-LLM | Ollama | llama.cpp | Groq | Vercel AI SDK | RunPod | Replicate | Modal | BentoML | Multi-turn | Few-shot | Zero-shot | RAG-Based | ReAct | Function Calling | Tool Calling | Structured Outputs | Programmable AI Pipelines | AI Developer | AWQ | GPTQ | GGUF | GGML | PTQ | DQ | LangChain | LlamaIndex | Chroma | FAISS | Pinecone | Qdrant | Weaviate | Milvus | pgvector | GraphRAG | Vector Search | Semantic Search | Embeddings | AI Developer | n8n | Zapier | Make | AI Workflows | Business Process Automation | API Automation | Intelligent Workflows | AI-Powered Integrations | React.js | Next.js | TypeScript | JavaScript | Node.js | NestJS | Express.js | C# | .NET 8 | ASP.NET Core | Entity Framework Core | AI Developer | REST APIs | Microservices | SaaS Development | SQL Server | Azure SQL | PostgreSQL | MySQL | MongoDB | Redis | Database Design | Query Optimization | Database Optimization | Caching | AI Developer | Developer
Steps for completing your project
After purchasing the project, send requirements so Devansh can start the project.
Delivery time starts when Devansh receives requirements from you.
Devansh works on your project following the steps below.
Revisions may occur after the delivery date.
Client purchases the project and sends requirements.
Client reviews and approves your work, and you get paid.