Syed Shoaib profile photo 1 on Tal

Syed Shoaib

Backend Engineer | Node.js • Spring Boot • Distributed Systems • PostgreSQL • Redis • AWS

India

6+ years of work experience

TECHWEAVER SYSTEMS PVT LTD
Feb 20233 yrs 6 mosPresent

Hyderabad

Built OAuth2 + JWT + OTP authentication system handling 800K+ monthly requests with refresh token rotation and secure session lifecycle Designed production-grade session management with HttpOnly cookies, CSRF protection, and JWT dual-secret rotation — enabling zero-downtime secret rotation without forced user logouts Independently architected multi-tenant user management schema with tenant-scoped RBAC and per-tenant email uniqueness constraints, ensuring strict data isolation across tenants Identified N+1 query pattern in hotel booking GraphQL API causing 3000–4500ms response times; refactored using DataLoader and batched resolvers, reducing latency to 300–500ms (~10x improvement) Diagnosed full-table scan bottlenecks and introduced optimized indexing, eliminating CPU spikes and thread blocking under concurrent load Introduced Redis TTL caching on high-frequency read endpoints, reducing DB load by 25% Optimized MongoDB aggregation pipelines using compound indexes, improving P95 latency by 17%
Freelance
Oct 20211 yr 4 mosJan 2023

Remote

Built tailored Java/Spring Boot backend solutions for international clients including authentication systems, third-party integrations, and data processing pipelines. Delivered client projects end-to-end — from requirements to deployment — maintaining clean documentation and zero post-delivery escalations.
Freelance
Dec 20191 yr 9 mosAug 2021

Remote

Built and deployed full-stack React.js applications for international clients, integrating payment gateways, social APIs, and third-party services. Optimized frontend performance using Webpack and Babel, implementing responsive design and accessibility standards across desktop and mobile.
GitHub
@itsdevsyed
LeetCode
@itsdevsyed
Personal portfoliosyed-portfolio-hub.vercel.app

Syed’s AI Stack

claude code
claude code
claude
claude
codex
codex
langchain
langchain
langgraph
langgraph
OpenHands
OpenHands

Education

Bachelor of Science - BS, Computer Science

Swami Ramanand Teerth Marathwada University

20193 yrs2022

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Headline

Backend Engineer | Node.js • Spring Boot • Distributed Systems • PostgreSQL • Redis • AWS

About

Backend-focused Full Stack Engineer with 3.5+ years building secure, scalable production systems in startup environments. Core stack: Node.js, GraphQL, Spring Boot, FastAPI PostgreSQL, Redis, Docker, AWS. What I've shipped: OAuth2 + JWT auth system handling 800K+ monthly requests, multi-tenant RBAC with strict data isolation, GraphQL N+1 fix that cut latency from 4500ms to 300ms (~10x), and indexing fixes that eliminated CPU spikes under concurrent load. Currently open to SDE2/SDE3 backend or full stack roles at funded startups and product companies.

Location

India

AI stack

claude code

claude

codex

langchain

langgraph

OpenHands

Work experience

Software Engineer I at TECHWEAVER SYSTEMS PVT LTD, Feb 2023 - Present · 3 yrs 6 mos, Hyderabad, Built OAuth2 + JWT + OTP authentication system handling 800K+ monthly requests with refresh token rotation and secure session lifecycle Designed production-grade session management with HttpOnly cookies, CSRF protection, and JWT dual-secret rotation — enabling zero-downtime secret rotation without forced user logouts Independently architected multi-tenant user management schema with tenant-scoped RBAC and per-tenant email uniqueness constraints, ensuring strict data isolation across tenants Identified N+1 query pattern in hotel booking GraphQL API causing 3000–4500ms response times; refactored using DataLoader and batched resolvers, reducing latency to 300–500ms (~10x improvement) Diagnosed full-table scan bottlenecks and introduced optimized indexing, eliminating CPU spikes and thread blocking under concurrent load Introduced Redis TTL caching on high-frequency read endpoints, reducing DB load by 25% Optimized MongoDB aggregation pipelines using compound indexes, improving P95 latency by 17%

Java Developer at Freelance, Oct 2021 - Jan 2023 · 1 yr 4 mos, Remote, Built tailored Java/Spring Boot backend solutions for international clients including authentication systems, third-party integrations, and data processing pipelines. Delivered client projects end-to-end — from requirements to deployment — maintaining clean documentation and zero post-delivery escalations.

Frontend Developer at Freelance, Dec 2019 - Aug 2021 · 1 yr 9 mos, Remote, Built and deployed full-stack React.js applications for international clients, integrating payment gateways, social APIs, and third-party services. Optimized frontend performance using Webpack and Babel, implementing responsive design and accessibility standards across desktop and mobile.

Education

Bachelor of Science - BS, Computer Science, Swami Ramanand Teerth Marathwada University

Public links

github: https://github.com/itsdevsyed

leetcode: https://leetcode.com/itsdevsyed

syed-portfolio-hub.vercel.app: https://syed-portfolio-hub.vercel.app/