Nitin Sain

Background

About Nitin Sain

I am a Software Developer with 2.4 years of experience in the fintech domain, specializing in building scalable backend systems and responsive frontend interfaces. My expertise spans Node.js, NestJS, TypeScript, JavaScript, PostgreSQL, Redis, Prisma, Drizzle ORM, React.js, Vue.js, and cloud services like AWS S3, EC2, IAM, and Lambda. At Atriina Technology, I worked on user onboarding and offboarding flows, integrated payment gateways (PhonePe), and managed various third-party service integrations (MF Central, Account Aggregator, Accord). I optimized scalability by implementing Redis caching, improved API response times, and utilized BullMQ to offload heavy processing into background jobs. I contributed to developing a multilingual SDK serving users and enhanced system security through AES-256 encryption. I am passionate about solving complex problems, optimizing performance, and delivering secure, high-quality software solutions. Always eager to learn and collaborate, I thrive in environments that value innovation and scalability.