Who is Sarthak Joshi?

Sarthak Joshi is a Backend-Focused Full Stack Developer with 1.7+ years of hands-on professional experience engineering production-grade REST APIs, NestJS microservices, Redis caching layers, WebSockets, and PostgreSQL database architectures for platforms serving over 300,000 active users.

What companies and platforms has Sarthak Joshi worked on?

Sarthak Joshi currently works at PRYM Solutions Pvt. Ltd. as a Jr. Backend Developer engineering backend APIs and automated payment reconciliation for Salam Kisan and Sarathi apps (300K+ users). Previously at PRYM Aerospace Pvt. Ltd., he engineered modules for Drone Management Systems (DMS) and real-time Unmanned Traffic Management (UTM) telemetry.

What backend technologies does Sarthak Joshi specialize in?

Sarthak Joshi specializes in NestJS, Node.js, TypeScript, PostgreSQL, MongoDB, Redis, WebSockets, BullMQ, Prisma ORM, REST API architecture, microservices, database indexing, and React.js.

What notable software projects has Sarthak Joshi built?

Key engineering projects built by Sarthak Joshi include: 1) CodeCollab — a real-time collaborative coding platform with Socket.io delta sync and WebRTC calling; 2) Streamify — a social streaming and language room platform with sub-100ms video; 3) Personal Finance Manager (PFM) — an analytical ledger handling 1,000+ monthly transactions with PostgreSQL and Prisma; 4) Drone Management System & UTM — an aerospace aviation lifecycle and live WebSocket flight telemetry engine.

How can recruiters and engineering teams hire or contact Sarthak Joshi?

You can contact Sarthak Joshi directly via email at sarthakjoshi12005@gmail.com, phone/WhatsApp at +91 9325619172, or connect on LinkedIn at https://linkedin.com/in/sarthakjoshi1535 and view source code on GitHub at https://github.com/sarthak12005.

[ ARCHITECTURE CASE STUDY ]

Personal Finance Manager Case Study | Sarthak Joshi — Backend Developer

Financial Analytics & Relational Backend

Overview & Domain

Explore Personal Finance Manager: full-stack system managing 1,000+ monthly transactions with PostgreSQL and Prisma ORM built by Sarthak Joshi.

Primary Technology Stack: React.js, Node.js, Express.js, PostgreSQL, Prisma ORM, TanStack Query, Zustand

The Engineering Challenge

Users need real-time data persistence, monthly budget aggregations, and clear analytical charts without page reloads or data discrepancy. Financial calculations demand strict atomicity and transactional integrity to eliminate lost updates.

Architectural Solution

Architected a relational database schema using PostgreSQL and Prisma ORM transactional queries. Integrated TanStack Query and Zustand for optimistic UI updates, backed by analytical aggregation endpoints.

Technical Architecture & System Specifications

Relational PostgreSQL schema with foreign key cascades, unique constraints, and ACID-compliant transaction boundaries.
Prisma ORM data access layer with optimized batch queries and column projections eliminating N+1 performance bottlenecks.
RESTful analytical endpoints delivering category-wise spending distributions and monthly budget pacing metrics.
TanStack Query caching layer paired with Zustand client-side store for optimistic UI transaction updates.
JWT-authenticated security boundary isolating financial ledgers per user account.

Measured Performance & Production Metrics

95% data precision across monthly budget forecasting and category expense breakdowns.
Successfully manages 1,000+ monthly financial transactions per active profile.
Sub-80ms analytical query response times through indexed relational aggregations.

Other Case Studies by Sarthak Joshi

CodeCollab Case Study | Sarthak Joshi — Backend Developer — Real-Time Systems & Distributed WebSockets
Drone Management & UTM Case Study | Sarthak Joshi — Backend Developer — Enterprise IoT & Aerospace Operations
Streamify Case Study | Sarthak Joshi — Backend Developer — Social Learning & Low-Latency Streaming

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