Shivansh Singh
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Travlog

Software Engineer

Jul 2023 - Jan 2025Remote - IndiaFull-timeYC-tracked startup

About

Travlog is a social travel app for collaborative trip planning - think a stripped-down Instagram meets a shared itinerary tool. The company was YC-tracked and operating in a crowded travel-tech market with a small team. I joined as the sole mobile and infrastructure engineer, building the full product from the ground up.

What I Built

  • ·Built a modular cross-platform social travel app for collaborative trip planning using Flutter, serving as the sole mobile and infrastructure engineer.
  • ·Designed and iterated 15+ SQLite schema versions for an offline-first storage layer that kept the app functional without internet - critical for travel use cases.
  • ·Engineered a monolithic backend in Kotlin and Node.js managing 40+ REST endpoints, handling authentication, real-time sync, and content delivery.
  • ·Built and maintained a Firebase Cloud Messaging pipeline that processed 500 device tokens within a 256 MB memory constraint.
  • ·Migrated the entire stack from a local setup to AWS cloud architecture - provisioning EC2, S3, and RDS - as the user base grew.

Tech Stack

FlutterDartKotlinNode.jsSQLiteAWS (EC2, S3, RDS)FirebaseREST APIGit