I will build a python or node backend for your ai app

R
r_kabir01
R
r_kabir01
Raihan Kabir
5.0
5.0

Gig Summary

About this gig

I build Python and Node backends for AI products. 114+ model gateway, 5K

requests per second, 200K records/day.


Your AI feature works in a notebook. Turning it into something users can hit

is a different job: auth, rate limits, queues, retries, cost tracking, and

logs you can actually read when it breaks at 2am.


What you get:


- REST API in FastAPI, Django, or Express

- PostgreSQL schema and migrations

- Background jobs and queue handling

- Auth, rate limiting, and error handling

- Deployed on AWS, or your infrastructure

- Handover doc your next engineer can read


Stack: Python, FastAPI, Django, Node.js, TypeScript, Express, PostgreSQL,

Docker, AWS.


Six years of software engineering. I have shipped an LLM gateway routing 114+

models, APIs sustaining 5,000 requests per second, and AWS pipelines at

200,000 records per day.


Send me what you are building and where it is stuck. I will tell you what it

will actually take.

Get to know Raihan Kabir

Raihan Kabir

Full Stack AI Developer, Agents, Chatbots, RAG, LLM, GenAI, n8n

5.0(42)
  • FromBangladesh
  • Member sinceMay 2020
  • Avg. response time12 hours
  • Last delivery1 year
  • Languages

    English
I build AI agents, RAG systems, web solutions, and automation products that are designed to work beyond the demo, backed by production-grade backend and cloud engineering. With six years of experience in full-stack development and three years focused on AI, I help turn AI ideas into reliable products... from architecture and retrieval pipelines to agent workflows, evaluation, observability, and deployment. Clients hire me when the prototype works but the product doesn't. They keep me as a full stack developer when the AI work needs a real product around it.

My Portfolio

Reviews

22 reviews for this Gig
5.0

(22)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • R
    image-docs

    renaudviot

    US

    United States

    5

    Very quick turnaround. He understood the needs and delivered accordingly.

    $50-$100

    Price

    1 day

    Duration

    Helpful?
    Yes
    No
  • A

    anishrao457

    IN

    India

    Ongoing collaboration
    5

    Great work as always, would definitely recommend

    $50

    Price

    Helpful?
    Yes
    No
  • S
    image-docs

    schuthit

    DE

    Germany

    4.7

    Completed very quickly, before set deadline :)

    $400-$600

    Price

    Worksample image
    Helpful?
    Yes
    No
  • M

    macvibert

    CA

    Canada

    5

    Top notch! Knowledge and use of many helpful libraries. Super fast and clean code. Great English and great at explaining. 10/10 would recommend.

    $100-$200

    Price

    Helpful?
    Yes
    No
  • A

    anishrao457

    IN

    India

    Ongoing collaboration
    5

    Explained everything properly step by step and really fast delivery. Will surely recommend

    $100-$200

    Price

    Helpful?
    Yes
    No
Reviews

22 reviews for this Gig
5.0

(22)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • R
    image-docs

    renaudviot

    US

    United States

    5

    Very quick turnaround. He understood the needs and delivered accordingly.

    $50-$100

    Price

    1 day

    Duration

    Helpful?
    Yes
    No
  • A

    anishrao457

    IN

    India

    Ongoing collaboration
    5

    Great work as always, would definitely recommend

    $50

    Price

    Helpful?
    Yes
    No
  • S
    image-docs

    schuthit

    DE

    Germany

    4.7

    Completed very quickly, before set deadline :)

    $400-$600

    Price

    Worksample image
    Helpful?
    Yes
    No
  • M

    macvibert

    CA

    Canada

    5

    Top notch! Knowledge and use of many helpful libraries. Super fast and clean code. Great English and great at explaining. 10/10 would recommend.

    $100-$200

    Price

    Helpful?
    Yes
    No
  • A

    anishrao457

    IN

    India

    Ongoing collaboration
    5

    Explained everything properly step by step and really fast delivery. Will surely recommend

    $100-$200

    Price

    Helpful?
    Yes
    No