Devendra Pratap Singh @0xdps
Principal Software Engineer · System Architect · Engineering Leader
10+ years building backend systems at scale across automotive, gaming, NFT & entertainment. Led teams, migrated clouds, and shipped products used by millions.
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Devendra Pratap Singh
@0xdps
Principal Software Engineer building scalable backend systems
🚀 Currently
India's Largest Used Car Platform — leading a team of 11, driving Python runtime upgrades, observability infrastructure, and large-scale database migrations.
💬 About
I'm a software engineer with 10+ years of professional experience in backend development, distributed systems, and cloud infrastructure. I've built systems across automotive, gaming, fintech, blockchain, and entertainment.
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Building systems that
actually scale
I'm a software engineer with 10+ years of professional experience in backend development, distributed systems, and cloud infrastructure. I've built systems across automotive, gaming, fintech, blockchain, and entertainment — and I approach each new domain with the same focus: clarity, reliability, and scale.
At Zynga, I spent 5 years on FarmVille 2 & 3 — optimizing performance for millions of players, cutting pre-release times from hours to minutes, and building automation frameworks that 10x'd developer velocity. At BookMyShow, I built identity management and real-time cinema monitoring systems serving the entire country.
At Fancraze, I led engineering for India's official cricket NFT platform — including a full AWS → GCP migration and re-architecting the blockchain dependency model so end-user transactions went from minutes to seconds. Now at Spinny, I'm a Principal Engineer leading a team of 11, driving Python runtime upgrades, observability infrastructure, and large-scale database migrations.
I also write about tech, conduct mock interviews, and mentor engineers through Topmate. I believe the clarity of your architecture reflects the clarity of your thinking.
- System Design & Architecture
- Microservices & Distributed Systems
- Performance Optimization
- DevOps, SRE & Observability
- Cloud Migrations (AWS → GCP)
- Engineering Leadership & Mentoring
- Data Engineering
Where I've Built
10 years across gaming, entertainment, fintech, NFT platforms, and automotive technology.
- Leading a team of 11 engineers; driving Python 3.7 → 3.10 runtime upgrade, improving security and modern language support across services
- Designed internal library for deep request tracing and structured logging — significantly reducing production incident resolution time
- Redesigned vehicle & technician allocation workflow, cutting turnaround from multiple days to under half a day
- Led large-scale vehicle parts inventory data migration; refactored schemas and tuned queries for peak load performance
- Led complete cloud migration AWS → GCP, improving scalability and cutting infrastructure costs
- Re-architected the blockchain dependency model: database becomes source of truth with background sync — transactions from minutes → seconds
- Designed comprehensive accounting system tracking all fund flows — enabling transparent financial reporting and automated revenue intelligence
- Integrated GCP Secret Manager enabling secure management of sensitive config for all environments
- Optimized in-game memory from 40MB → 20KB by refactoring game asset data mapping — millions of players experienced dramatically faster load times
- Cut pre-release process from ~2 hours to 15 minutes through automation and pipeline optimization
- Built system for custom script execution during game load without requiring a new release — enabling dynamic feature management
- Designed end-to-end automation for FarmVille 3 reskin feature, eliminating manual effort across the entire pipeline
- Built IAM system over Windows Active Directory for centralized access control across all 20+ internal projects
- Created cinema health monitoring tool that simulates booking flows and auto-disables inactive cinemas nationwide
Systems I've Engineered
High-impact projects — from blockchain re-architecture to game performance optimization at scale.
Blockchain Dependency Re-Architecture
Re-architected an NFT platform to remove direct blockchain dependencies. Made the database the primary source of truth with background synchronization for NFTs and funds — decoupling UX from chain latency entirely.
Transaction times reduced from minutes → seconds; system reliability and scalability dramatically improved
Game Memory & Performance Optimization
Refactored FarmVille's game asset data mapping to eliminate memory bloat. Rebuilt release pipeline from scratch with full automation, dynamic script execution during game load, and modular feature management objects.
Memory: 40MB → 20KB · Release time: 2 hrs → 15 min · Zero feature archiving needed
Comprehensive Financial Accounting System
Designed and built a full-stack financial accounting system tracking all fund flows: user transactions, platform revenue, and fees. Enables automated reporting and transparent financial intelligence for business decisions.
100% fund flow visibility; automated revenue tracking; accurate fee calculation for BI
Identity Management & Cinema Monitoring
Built IAM system with LDAP integration and Universal Access Portal for BookMyShow. Built real-time cinema health monitoring with simulated booking flows and automated enable/disable logic for cinemas nationwide.
Centralized access control for 20+ internal projects; real-time operational monitoring at scale
Tools of the Trade
A decade of building with these technologies across production systems serving millions of users.
Side Projects & Open Source
Independent explorations, developer tools, and technical experiments built outside of 9–5.
macOS menu-bar app built with SwiftUI to control link-opening behavior using per-domain and per-app rules. Optimized for low-latency UX and reliable background execution.
VS Code extension to streamline Git workflows by improving history visibility and commit hygiene. Focused on safe operations, intuitive UX, and high performance on large repositories.
Developer-friendly npm CLI for API testing — supports collections, request replay, and environment management for fast iteration and a consistent developer experience.
Lightweight ORM-style Python framework over Google Sheets — typed models, CRUD operations, validations, and batch processing. Packaged with documentation, tests, and versioned releases.
Let's Grow Together
I offer focused mentorship, mock interviews, and system design sessions for engineers looking to level up.
Live structured mock interviews with detailed feedback — system design rounds, backend architecture, deep dives in Java/Python/Go. Comprehensive written notes + personalized improvement roadmap.
Career guidance, system design walkthroughs, code reviews, and technical leadership advice. Perfect for engineers targeting senior/principal roles or making strategic transitions.
Short focused calls to resolve specific technical questions — debugging, architecture decisions, interview prep, or career guidance. Quick and actionable.
Deep dive into your architecture decisions and scalability thinking. Ideal for senior+ interview prep or validating production system designs before shipping.
Ready to level up?
Whether it's cracking a senior interview, validating a system design, or navigating a career transition — book a session and let's work through it together.
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