Arunkumar Nithyanandham

Backend Engineer with 2.10 years of experience in Node.js, TypeScript, and Serverless architecture, building scalable, high-performance, and low-latency backend systems. Strong expertise in Nest.js, microservices architecture, and AWS cloud services (Lambda, SQS, SNS, RDS, EC2). Proven experience in API optimization, improving response time by 30% and reducing infrastructure load by 25%.

Skilled in authentication & authorization using OAuth 2.0, JWT, and API security best practices, reducing unauthorized access by 40%. Hands-on experience with event-driven architecture, asynchronous processing, third-party API integrations, and distributed systems. Passionate about clean code, system design, scalability, and reliable production systems.

Software Engineer at Amwhiz Media Pvt Ltd (2023-10 – Present)

• Designed and developed high-volume, low-latency backend systems using Node.js, TypeScript, and Serverless architecture
• Improved API performance by 30% and reduced infrastructure load by 25% through optimization and async processing
• Built event-driven workflows using AWS SQS & SNS, improving scalability and fault tolerance

Associate Software Engineer Intern at Amwhiz Media Pvt Ltd (2023-06 – 2023-10)

• Migrated legacy applications to Nest.js, improving maintainability and modular architecture
• Fixed critical bugs and improved application stability
• Assisted in implementing serverless architecture components

B.E. in Mechanical Engineering – Anna University – M.P. Nachimuthu M. Jaganathan Engineering College (2018-06 – 2022-06)