Databases on Prateek Sharma

Database Internals

Tue, 01 Sep 2026 00:00:00 +0000

TODO: Add review / notes once read.

Designing Data-Intensive Applications

Tue, 01 Sep 2026 00:00:00 +0000

TODO: Add review / notes once read.

Emission Critical

Sun, 01 May 2022 00:00:00 +0000

Emission Critical is a B2B SaaS platform for enterprise carbon footprint and sustainability tracking. I led the backend: the data model, the APIs, and the computation engine.

Engineering areas

Multi-tenant platform

Architected a multi-tenant PostgreSQL schema with tenant-level data isolation.
Integrated Auth0 for identity and multi-tenant RBAC.
Streamlined data ingestion through Excel parsing and automated AWS S3 pipelines.

Carbon accounting engine

Designed the engine for full Scope 1, 2, and 3 emissions tracking and product carbon footprints.
Cut computation latency ~50% and improved throughput a further ~30% with better indexing and batch processing.

Search and lookups

Built parsers and Meilisearch-backed full-text search over public emission factor databases.
Exposed REST APIs for emission-factor lookups feeding downstream carbon computation.

Observability

Stood up observability with OpenTelemetry, SigNoz, and Kubernetes-native logging for real-time diagnostics.

Stack

NestJS · TypeScript · PostgreSQL · Auth0 · Meilisearch · AWS · Kubernetes · OpenTelemetry

Yolobus

Sun, 01 Mar 2020 00:00:00 +0000

Yolobus operated intercity buses. I worked on the in-house systems for inventory and bookings.

Engineering areas

Global Distribution System

Designed the database architecture for an in-house GDS managing trip inventory and real-time bookings.

Booking engine

Migrated core services to Python / Django.
Built a serverless ticket-booking engine on AWS Chalice, improving maintainability and transaction scalability.
Implemented high-throughput booking APIs integrating third-party payment and inventory providers (e.g. Redbus, Paytm).

Stack

Python · Django · AWS Chalice · PostgreSQL · REST APIs