---
title: "Balvinder Parwar - Software Developer in Bengaluru | Tal"
description: "Meet Balvinder Parwar, Full-Stack Engineer | Data Platforms & Access Control/Security | React, TypeScript, Python/Flask, PostgreSQL | Apache Superset, JWT/OAuth based in Bengaluru. AI stack includes cursor, github copilot, and langchain."
image: "https://tal.club/meet/balvinder/share-image"
---

# Balvinder Parwar on Tal

## Headline

Full\-Stack Engineer \| Data Platforms & Access Control/Security \| React, TypeScript, Python/Flask, PostgreSQL \| Apache Superset, JWT/OAuth

## About

I'm a full\-stack software engineer with \~2 years of experience building data\-intensive, multi\-tenant web applications — with a particular focus on analytics platforms, access control, and security\-hardened architecture\. My core stack is React\.js, TypeScript, Python/Flask, and PostgreSQL, and I've worked extensively with Apache Superset, ECharts\.js, and AG Grid to turn complex datasets into actionable, visual experiences\. At Appler, I've owned end\-to\-end features across two client engagements\. On the analytics side, I designed UI\-driven onboarding workflows and a scalable role\-to\-dashboard mapping system, and automated Row Level Security \(RLS\) across 100\+ datasets — eliminating manual operational overhead and improving platform maintainability\. On a multi\-tenant data pipeline platform, I implemented authentication and session security — JWT verification, OAuth/PKCE login flows, and migrating session storage from localStorage to secure HTTP\-only cookies to close an XSS token\-theft vector — along with production\-hardening safeguards like JWT secret validation and token revocation on sign\-out\. I thrive at the intersection of frontend craft, backend logic, and security — equally comfortable building clean, reusable UI components and hardening the systems underneath them\. Currently exploring opportunities at product teams building data\-rich platforms, where engineering quality and security are treated as first\-class concerns\. 📍 Open to remote, hybrid, or on\-site roles across India\.

## Location

Bengaluru

## AI stack

cursor

github copilot

langchain

openai

## Work experience

Software Developer at Appler, Jun 2024 \- Present · 2 yrs 1 mo, Panaji, Major Contributions : • Implemented authentication and session security for a multi\-tenant data pipeline platform \(Sensyze\), including JWT verification, OAuth/PKCE login flows, and migration from localStorage to Secure HTTP\-Only cookies to close an XSS token\-theft vector\. • Built production\-hardening safeguards for the auth service, including JWT secret strength validation that blocks deployment on weak or default secrets, and a token revocation system enabling secure sign\-out across password, magic\-link, and social login flows\. • Implemented a multi\-tenant onboarding and admin module — team\-scoped data isolation, role\-based access control, and encrypted storage of third\-party credentials \(SMTP, OAuth secrets\)\. • Streamlined Row Level Security \(RLS\) workflows by implementing bulk dataset automation \(100\+ datasets\) and auto\-sync mechanisms, ensuring existing rules remain current while reducing ongoing operational overhead\. • Implemented a scalable, configurable role\-to\-dashboard mapping system based on established designs, replacing hard\-coded configurations and improving maintainability and onboarding consistency\. • Automated client onboarding, role creation, and access control by implementing UI\-driven workflows and backend APIs in collaboration with senior engineers, eliminating manual database operations and reducing onboarding effort and errors\.

## Education

Master of Computer Applications \- MCA, Computer Science, Sikkim Manipal University \- Distance Education

[View the original profile](https://tal.club/meet/balvinder)

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