Software Engineer · Bengaluru, India

Vishwajit Avarsekar

I design and build dependable backend systems and applied AI products — the quiet infrastructure that lets good products stay good under pressure.

FocusBackend systems · Applied AI
CurrentlyBuilding independently
Based inBengaluru · Remote-friendly
01

About

I'm a backend-leaning full-stack engineer. My work lives mostly in the parts of a system no one sees in a demo — APIs, data models, retrieval pipelines — yet decide whether it holds up.

I've written production code at an early-stage startup, delivered client work as an independent developer, and built things on my own initiative end to end: a real estate platform, an npm package that makes API latency legible, a fine-tuned language model, and a retrieval system grounded in regulatory text.

Lately my interest is in applied AI that has to be correct, not just impressive — grounding LLM output in real data, measuring what models actually do, and shipping the result as ordinary, maintainable software.

02

Selected Works

I.

Nutri-Score Classifier

A fine-tuned DistilBERT model predicting a food product's Nutri-Score grade (A–E) from ingredient text alone. Labels were computed from the official formula rather than trusted from source data, trained on ~926k global products, and evaluated on a held-out India set to surface a genuine domain-shift gap.

Python · PyTorch · DistilBERT · Hugging Face

II.

FSSAI RAG

A retrieval-augmented question-answering system over Indian food-safety regulations. Plain-language questions return answers grounded in the actual regulatory text, using hybrid search (BM25 + vector embeddings) so exact clause matches aren't lost to pure semantic retrieval.

Python · OpenSearch · Gemini API · Hybrid Search

III.

latency-break

A published npm package that decomposes request latency into its components — database time, server compute, network overhead — so performance work starts from measurement instead of guesswork.

JavaScript · Node.js · npm

IV.

Real Estate Platform

A full-stack property listing platform with search and multi-criteria filtering, built solo end to end: data modelling, REST API, authentication, and frontend.

MongoDB · Express · React · Node.js

V.

Client Listing Platform

An independent engagement delivering a listing website for a client — requirements gathered directly, shipped iteratively, and maintained in production. Code is client-owned.

Smaller experiments — a web crawler, a bird-flock simulation, a weather forecaster — live on GitHub.

03

Experience

January 2026 — Present

Independent Developer

Delivering client work and personal systems as an independent developer — owning requirements, architecture, and delivery directly, with ongoing maintenance and new features in the pipeline.

May 2025 — November 2025

Full-Stack Developer · Brixline

Worked across the stack on a production product, leaning backend — APIs, database design, and the services beneath the parts users see.

04

Capabilities

Backend

Node.js · Express · FastAPI · Spring Boot · Go (working knowledge)

Data

MongoDB · PostgreSQL · OpenSearch · Vector search

Applied AI

RAG pipelines · Embeddings · Hybrid search · Model fine-tuning

Frontend

React · Next.js · JavaScript · HTML / CSS

Tooling & Practice

Git · Docker · Linux · npm publishing · REST API design

Few things, done carefully.

Say hello

Whether you're building a product, backing one, or simply want to talk systems and technology — my inbox is open.

Resume — PDF