Hi, my name is
Bhupender Soni.
I build backend systems at scale.
Backend-first Software Engineer with 3 years at Steelbazaar — India's B2B steel marketplace. I design and ship high-scale microservices, REST APIs, and auth systems serving 1,000+ business users. Specializing in Java, SpringBoot, and AWS — targeting SDE-2 roles in Delhi NCR.
Get In TouchI'm a backend engineer based in Noida, UP — currently SDE-II at Steelbazaar, India's B2B steel e-commerce marketplace. Over 3 years I've designed and shipped production systems that handle real business load — from JWT-based auth across 4 admin roles to bulk pipelines processing 10,000+ product records at a time.
My focus is on writing backend code that's fast, maintainable, and solves the right problem. I've diagnosed 50+ production incidents, maintained 99.9% uptime, and driven a 30% reduction in API response time through MySQL query optimization. I care about performance, clean system design, and code review culture.
I completed my Full Stack training at Masai School, Bengaluru on a merit-based scholarship and hold a B.Sc in Computer Science from Maharaja Ganga Singh University.
Software Development Engineer II @ Steelbazaar
MAY 2023 — PRESENT · Noida, India
- Designed and shipped 35+ production REST APIs in Java / SpringBoot covering buyer/seller onboarding, business profiles, and admin ops — serving 1,000+ B2B users at sub-200ms p95 latency
- Architected a JWT + RBAC auth system across 4 admin roles and multiple portal modules with permission-level access and audit trails — reduced unauthorized access incidents to zero post-launch
- Integrated AWS S3 for product image storage via pre-signed URLs — cut retrieval time by 45% (from ~800ms to ~440ms) and reduced storage overhead by 20%
- Optimized MySQL queries via composite indexing and service-layer refactoring — achieved a 30% reduction in API response time under peak traffic (verified via DBeaver query plans)
- Built a bulk Excel (.xlsx) import/export pipeline for 10,000+ records — eliminated manual data entry, reducing ops processing time by 40%
- Automated OTP handling and GST verification via MSG91 & SIGNZY APIs — reduced manual verification workload by 30% and improved onboarding data accuracy
- Diagnosed and resolved 50+ production issues, maintaining 99.9% uptime and improving mean error recovery time by 40%
- Drove LLD reviews, architecture planning, and code reviews across sprints — reduced post-release bugs by 35%
Full Stack Engineering Program @ Masai School
2022 · Bengaluru, India
- Selected for the Bhaichung Bhutia Merit Scholarship — awarded to top-performing candidates from a competitive applicant pool
- Completed 1,200+ hours of intensive hands-on training covering Java, SpringBoot, ReactJS, Node.js, SQL, and system design fundamentals
- Solved 700+ DSA problems across arrays, trees, graphs, dynamic programming, and core CS concepts
- Built and deployed 20+ real-world projects including collaborative team apps, RESTful APIs, and database-backed web applications
URL Shortening Service
Production-ready shortener using SHA-256 + Base36 encoding with idempotent hash generation. Collision-safe salted retry logic and Redis TTL caching — reduced DB hits by 90% on repeated lookups.
DigiMatch — Buyer-Seller Engine
Full-stack B2B matching platform connecting 1,000+ buyers and sellers. Multi-filter search across location, product attributes, and pricing — delivering match results in under 200ms via optimized joins.
Java
SpringBoot
SpringMVC
Spring Sec.
MySQL
Redis
ReactJS
JavaScript
TypeScript
AWS S3
AWS SQS
MongoDB
Git
GitHub
Bitbucket
IntelliJ
Maven
Postman
JUnit
Jira
I'm actively exploring SDE-2 backend engineering roles in Delhi NCR — fintech, B2B SaaS, and logistics tech. If you're hiring or just want to talk systems and code, my inbox is always open.
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Designed & Built by Bhupender Soni