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Sahil Rohera

Sahil Rohera

Full Stack Engineer building scalable systems

sahil-rohera
Delhi, India
Joined March 2026
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Summary

Builds production-grade, scalable backend systems focused on data ingestion and reliability — comfortable designing architectures that handle high-throughput workloads and resumable pipelines. badho+1
Full-stack web developer with hands-on experience in React, Node.js, Express and relational databases; combines frontend and backend skills to deliver end-to-end features. vercel+1
Open-source and hackathon contributor who prototypes end-to-end projects (e.g., Observo) and participates as a judge/mentor in student hackathons and community events. medium+2
Active technical communicator: publishes long-form engineering articles explaining design trade-offs, implementation patterns, and operational learnings to help others build reliable systems. medium

Work

Education

Projects

Writing

How I Engineered a Robust ML Data Ingestion System That Scales from Scratch to Crores

March 1, 2026

Detailed engineering post describing architecture, cursor-based exports, CSV streaming, S3 uploads, AWS Personalize incremental imports, and operational patterns to scale ingestion pipelines from small datasets to millions/crores of rows.

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Designing a Real-Time Notification System That Actually Scales

January 1, 2026

Engineering article on designing scalable real-time notification systems with considerations for performance, reliability and scalability.

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How We Built Observo: An Open-Source Log Monitoring System That Sets Up in Under 5 Minutes

August 1, 2025

Walkthrough of building Observo: log extraction, Kafka buffering, log agent, Dockerized deployment, and a real-time dashboard; focuses on design decisions for throughput and ease-of-deployment.

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Hobbies

Competitive programming and problem solving (active on LeetCode). leetcode

Technical writing about software architecture and systems. medium