I architect and ship end-to-end systems — Django backends, LLM & RAG pipelines, and the cloud infrastructure they run on. Independent contractor since 2018, with a track record of staying for the long haul.
Both demos run on this very server — Django + Celery behind nginx, built and operated end-to-end.
Upload any PDF and ask it questions. Chunking → sentence-transformer embeddings → pgvector search → LLM answers, with Celery doing the heavy lifting asynchronously.
A generative design pipeline for bridal wear: edit traditional khaka stencils, render them onto silk, then dress the finished garment on a model — the original motifs preserved at every step.
A few of the projects that shaped how I work.
Lead architect of a news-intelligence platform: a custom NLP/sentiment engine detecting political bias in real time, fed by a pipeline ingesting thousands of articles daily. Own the entire stack — models, Django backend, GCP & bare-metal infra.
Five-year engagement building and running a Django platform on AWS serving SEC-sourced financial data — high availability, security, and a client who kept coming back.
Built an automated support chatbot on Google Actions + Python Cloud Functions, and turned a legacy security tool into documented REST APIs with Swagger and token auth.
Deployed DD-WRT across router fleets with Bash automation for provisioning, VLANs and DMZ — cutting manual setup from hours to minutes.
Straight from Upwork reviews.
It was a pleasure working with Arjun, particularly his high-level expertise in Python and Django development. He is above the pack!
Arjun is an extremely skilled DevOps. His work was quick and professional. I will rehire him whenever I can.
Arjun is really a great asset to have on your team. He helped us out a lot. Communication is fantastic with him.
Arjun always delivers excellent work. He is a credit to Upwork.
Full-stack consulting: Python/Django backends, NLP & LLM systems, cloud infrastructure. Long-term clients across fintech, media intelligence, and infrastructure.
Led app development for a cloud collaboration product — architecture, modularization, deployment, team collaboration.
BLE smartwatch protocols, offline-first field apps with complex sync.
Started in mobile — roadside-assistance apps, device tracking, XMPP chat. B.E. Computer Engineering, 2013.