I set up your SnapShelf store for you: categories, product photos and descriptions, WhatsApp ordering, and a link-in-bio page that matches your brand. Live within 48 hours.


SahilVerified store
Hi, I'm Sahil, a backend engineer and the builder of SnapShelf. Book a backend service over WhatsApp, or pick up the engineering books I recommend.
Products
The book I recommend most to backend engineers. Replication, partitioning, transactions, and stream processing, explained from first principles. Affiliate link: buying through it supports my work at no extra cost to you.
A focused 60-minute call on your backend: system design, database modelling, queues and caching, scaling plans, or a second opinion before a big refactor. You get written notes afterwards.
A clear, step-by-step framework for system design rounds, with worked examples such as rate limiters, URL shorteners, and chat systems. Affiliate link: buying through it supports my work at no extra cost to you.
Profiling of your slowest endpoints, query and index review, a Redis caching strategy, and a prioritised fix list. I have cut API response times by up to 40% on production platforms this way.
When to split a monolith (and when not to), service boundaries, deployment, and observability. Practical and honest about trade-offs. Affiliate link: buying through it supports my work at no extra cost to you.
Subscription billing set up end to end: plans, checkout, webhook processing with idempotency, subscription lifecycle (trial, renew, cancel, failed payments) and tier-based feature gating.
How storage engines and distributed databases actually work: B-trees, LSM trees, replication, and consensus. Great after DDIA. Affiliate link: buying through it supports my work at no extra cost to you.
Production-ready REST APIs in Node.js, NestJS and TypeScript with PostgreSQL or MongoDB: JWT/OAuth auth, RBAC, validation, Swagger docs, tests, and Docker-based deployment.
A classic on writing readable, maintainable code: naming, functions, error handling, and tests. Affiliate link: buying through it supports my work at no extra cost to you.
The complete backend for your SaaS MVP: multi-tenant data model, auth and roles, billing, background jobs with BullMQ or RabbitMQ, third-party integrations, and CI/CD to AWS or Railway.
Timeless habits for software engineers, from tracer bullets to DRY to owning your career. Affiliate link: buying through it supports my work at no extra cost to you.











