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I am a Full Stack Developer with over 3 years of experience specializing in NestJS, Next.js, and high-concurrency backend architectures. At Bitzcrew, I built real-time gaming engines and resolved critical race conditions using Redis atomic transactions while managing crypto payment integrations. My expertise spans optimizing database queries, building scalable full-stack applications, and implementing secure, queue-based processing systems.…I am a Full Stack Developer with over 3 years of experience specializing in NestJS, Next.js, and high-concurrency backend architectures. At Bitzcrew, I built real-time gaming engines and resolved critical race conditions using Redis atomic transactions while managing crypto payment integrations. My expertise spans optimizing database queries, building scalable full-stack applications, and implementing secure, queue-based processing systems.

Payansh Jain

Web Developer, Full Stack Developer, Back-End Developer, +2

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I am a Full Stack Developer with over 3 years of experience specializing in NestJS, Next.js, and high-concurrency backend architectures. At Bitzcrew, I built real-time gaming engines and resolved critical race conditions using Redis atomic transactions while managing crypto payment integrations. My expertise spans optimizing database queries, building scalable full-stack applications, and implementing secure, queue-based processing systems.…I am a Full Stack Developer with over 3 years of experience specializing in NestJS, Next.js, and high-concurrency backend architectures. At Bitzcrew, I built real-time gaming engines and resolved critical race conditions using Redis atomic transactions while managing crypto payment integrations. My expertise spans optimizing database queries, building scalable full-stack applications, and implementing secure, queue-based processing systems.

Available to hire

I am a Full Stack Developer with over 3 years of experience specializing in NestJS, Next.js, and high-concurrency backend architectures. At Bitzcrew, I built real-time gaming engines and resolved critical race conditions using Redis atomic transactions while managing crypto payment integrations. My expertise spans optimizing database queries, building scalable full-stack applications, and implementing secure, queue-based processing systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

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Expert

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Expert

Expert

Work Experience

Mern/Next Developer at Tirrent Global Private Ltd

September 1, 2022 - December 31, 2024

Full Stack Developer (Js) at Bitzcrew Private Ltd

December 1, 2024 - Present

Built scalable backend systems using NestJS, Redis, and PostgreSQL for real-time gaming and transaction processing. Implemented race condition avoidance using Redis WATCH/MULTI, designed real-time game engines with bet lifecycle, draw detection, and automated refunds. Implemented OTP authentication, HMAC request signing, and rate limiting. Designed currency conversion system via interceptors. Integrated CoinPayments for crypto payments. Developed advanced filtering APIs with optimized queries, pagination, and dynamic validation. Implemented queue-based processing across modules to improve API performance. Added Redis caching to reduce latency and DB load.

Web Developer Intern at Nexgin Labs Private Ltd

July 1, 2022 - September 30, 2022

Migrated a large-scale React.js e-commerce platform to Next.js; improved SEO by 80% and page performance. Developed a React Native mobile app with Firebase push notifications. Built a Crypto Exchange frontend with live APIs and TradingView charts. Designed and implemented a full-stack Inventory Management System with Postgres backend and audit history. Strengthened project foundations with scalable backend APIs and workflows.