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Fiverr Pro
English
$
USD
I will build ai backend, rag, llm and openai integrations
Aunmoy Dey
About this gig
Bring AI into your productwithout building the infrastructure from scratch.
I help startups and SaaS teams integrate AI using OpenAI, RAG, vector databases, and production-ready backends. Whether you need a chatbot, smart search, document assistant, or AI workflow, I build reliable, scalable solutions that work in production.
What I can help with:
- AI chatbots & assistants (OpenAI, Claude, Gemini)
- RAG with pgvector, Pinecone, ChromaDB
- Semantic search, document chat, embeddings
- AI agent backends (LangChain, LangGraph, MCP)
- LLM gateways, model routing, prompt mgmt
- AI evaluation, token tracking, cost optimization
- Backend APIs (REST, GraphQL, gRPC)
How we work:
1. Understand your AI use case and data
2. Design AI architecture (gateway, vector store, caching)
3. Build, test, iterate with regular updates
4. Deliver production-ready system with deployment guidance
Why me?
- Backend engineer treating AI as infrastructure, not just prompts
- Clean, scalable designno glued-together demos
- Real experience with LLM gateways, RAG, and evaluation
- Clear communication, reliable delivery
Message me your AI idea. I'll outline the simplest architecture before you order.
Get to know Aunmoy Dey
Aunmoy Dey
Production Ready SaaS and AI Backends: Golang, NodeJS, Kubernetes, Kafka
- FromBangladesh
- Member sinceMay 2022
- Avg. response time1 hour
- Last delivery9 months
Languages
English, Hindi
I help startups and SaaS companies build backend systems that scale and integrate AI—without the rewrites.
You get production‑ready Golang & Node.js microservices, event‑driven architectures (Kafka, Redis), Kubernetes deployments, and AI integrations (OpenAI, RAG, agents). I've built logistics platforms, payment systems, and real‑time AI pipelines.
How I work:
→ Backend‑first, clean architecture
→ Regular updates, no surprises
→ Code that's easy to maintain and extend
Message me your project idea. I'll outline the simplest, most effective approach before you order.
My Portfolio
FAQ
Do you specialize in Golang or Node.js?
I have expertise in both Golang and Node.js and can develop APIs using either language based on project requirements, ensuring high performance and scalability.
Can you integrate payment gateways like Stripe or PayPal?
Yes, I specialize in Stripe, PayPal, Razorpay, and other payment gateway integrations, including secure payment flows, webhooks, and subscription management.
Will you provide API documentation?
Yes, I provide detailed API documentation using Swagger (OpenAPI), Postman collections, and markdown-based documentation for developers.
Can you optimize the performance of an existing API?
Absolutely. I analyze API performance, optimize database queries, implement Redis caching, load balancing, and rate limiting for improved scalability.
Do you provide authentication solutions for APIs?
Yes, I implement secure authentication using OAuth2, JWT, API Keys, Role-Based Access Control (RBAC), and multi-factor authentication (MFA).
Do you handle real-time data processing?
Yes, I build real-time APIs using WebSockets, Kafka, RabbitMQ, and other messaging technologies for instant data streaming and event-driven architectures.
