Open to opportunities

Arjun Divakar

@arjundivakar

Message

Senior software engineer building scalable Node.js microservices and real-time applications.

Singapore

Message

What I'm looking for

I’m looking for a role where I can design scalable microservices and real-time systems, own system performance and reliability, and collaborate with strong engineering teams to deliver production-grade products using AWS, CI/CD, and modern testing.

I’m a Senior Software Engineer with 8+ years of experience building scalable backend systems, microservices, REST APIs, and real-time applications using Node.js, NestJS, React.js, TypeScript, Python, MongoDB, PostgreSQL, Redis, and AWS. I focus on system design and performance optimization for distributed, cloud-native workloads serving from thousands to over 1 million users.

In my recent role, I designed and maintained high-performance Progressive Web Apps (PWA), architected Node.js + MongoDB data pipelines for high-volume wearable health data, and implemented CI/CD with Docker, Kubernetes, and production monitoring to improve reliability and observability. I’ve also built AI-powered backend services using OpenAI APIs, created real-time communication infrastructure with WebSockets/RabbitMQ, and strengthened quality through Jest and React Testing Library—so releases stay stable while systems scale.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Aktivolabs

Nov 2022 - Present (3 years 7 months)

Designed and maintained high-performance Progressive Web Apps (PWA) with React.js and Tailwind CSS, integrating Aktivolabs’ Health SDK for real-time health activity tracking by insurance partners. Architected Node.js and MongoDB data pipelines for high-volume wearable data and improved deployment reliability using CI/CD, Docker, Kubernetes, and production monitoring.

React Tailwind PWA MongoDB CI CD Docker Kubernetes Jest React Testing Library NodeJS

Software Engineer

Kash Info Solution

Sep 2021 - Nov 2022 (1 year 2 months)

Built an AI-powered journaling backend by integrating OpenAI APIs to deliver personalized insights and increase user engagement. Designed and optimized REST APIs with Node.js, NestJS, TypeORM, and MongoDB for mobile/web applications serving 1M+ users, and implemented low-latency real-time messaging using WebSockets and RabbitMQ.

OpenAI API NestJS TypeScript TypeORM MongoDB REST APIs WebSockets RabbitMQ NodeJS

Team Lead / Software Engineer

Dhameliya Infotech

Apr 2019 - Sep 2021 (2 years 5 months)

Designed, developed, and maintained scalable web applications using Node.js, React.js, AngularJS, MySQL, and MongoDB to improve stability and user engagement. Deployed services on AWS (EC2, S3, DynamoDB) and optimized backend logic and database queries to reduce load times and support high concurrency.

React AngularJS REST APIs MySQL MongoDB AWS EC2 AWS S3 AWS DynamoDB Performance Optimization NodeJS

Web Developer

Jk Instinct Media

Apr 2018 - Mar 2019 (11 months)

Created responsive, mobile-friendly pages using Bootstrap and custom CSS to improve user experience and navigation across devices. Optimized site performance and implemented SEO best practices to improve page load times and search visibility for client websites.

Bootstrap HTML5 CSS3 Responsive Web Design SEO Performance Optimization Custom CSS