Sahir Chawla

Full Stack Engineer

Ludhiana, Punjab 2+ yrs exp 85 · Excellent

About

Full stack engineer with production experience owning systems end-to-end — from schema design and API architecture to AWS infrastructure, and complex frontend workflows. Built intent-based LLM systems and AI-driven analytics at Transket, applying production AI/agentic patterns to real product workflows. Built and shipped RBAC systems, async job pipelines, containerized infra, and platform-level abstractions across startups independently. Strong across backend (Django, Node.js, PostgreSQL, Redis), infrastructure (AWS ECS, Docker, Kubernetes), and frontend (React, Redux, React Flow).

Skills & Expertise (30)

React Advanced

8.5/10

Years Exp

JavaScript Advanced

8.0/10

Years Exp

Node.js Advanced

7.5/10

Years Exp

REST APIs Advanced

7.5/10

Years Exp

REDUX Advanced

7.0/10

Years Exp

Next.js Advanced

7.0/10

Years Exp

Express.js Advanced

7.0/10

Years Exp

React Flow Intermediate

6.5/10

Years Exp

Docker Intermediate

6.5/10

Years Exp

Postgresql Intermediate

6.5/10

Years Exp

Typescript Intermediate

6.5/10

Years Exp

Python Intermediate

6.0/10

Years Exp

Redux Saga Intermediate

6.0/10

Years Exp

TailwindCSS Intermediate

6.0/10

Years Exp

Schema Design Intermediate

6.0/10

Years Exp

API Architecture Intermediate

6.0/10

Years Exp

Design Systems Intermediate

6.0/10

Years Exp

Redis Intermediate

6.0/10

Years Exp

WebSockets Intermediate

6.0/10

Years Exp

Nginx Intermediate

5.5/10

Years Exp

BullMQ Intermediate

5.5/10

Years Exp

Monaco Editor Intermediate

5.0/10

Years Exp

Django Intermediate

4.5/10

Go Beginner

4.0/10

Kubernetes WebSocket AWS (S3 AWS (ECS AWS (EC2 CSV

Work Experience

Full stack engineer

Transket

Apr 2025 - Present

Delivered full-stack RBAC system from scratch — defined role-permission models, enforced permission-scoped access across all API endpoints and UI surfaces. Built spot-instance resilient AWS infrastructure (EC2, ELB, Auto Scaling) ensuring service continuity during instance interruptions with zero manual intervention. Engineered a freeform bot builder using React Flow — supporting arbitrary node graphs, dynamic payload transformation, and nested condition chains as a core product feature. Built structured payload builder abstractions eliminating repetitive payload logic across the codebase, accelerating feature delivery for the engineering team. Implemented UI transformation layers converting complex nested JSON schemas into consistent, scalable UI configurations for dynamic form workflows. Shipped micro-frontend modules enabling independent deployment, isolated feature iteration, and faster release cycles. Built a 20+ component design system in collaboration with design, reducing duplicated component work and enforcing UI consistency across the product. Migrated CSV/XLSX validation from server-side (~5s for 1M+ rows) to client-side streaming (react-papaparse) + JS workers (~1.5–2s), and managed async state via Redux + Saga to reduce redundant API calls and improve frontend performance.

Full Stack Developer (React & Backend)

Web Development Internship

Aug 2024 - Jan 2025

Built and maintained full-stack web features using React and Node.js, working across UI components and REST API integration. Contributed to bug fixes, feature development, and code reviews across the stack under senior engineer guidance.

Full Stack Engineer — Enterprise Contract

Go Young India

Aug 2023 - Jun 2024

Designed backend for an accounting and bookkeeping platform using Node.js, PostgreSQL, Docker, and AWS — implementing auth, RBAC, and automated reporting workflows. Integrated Redis and BullMQ for async job processing; improved query performance by ~20% through index optimization and schema redesign.