Selvarajah A.

I am a seasoned IT professional with over 8 years of experience designing, developing, and managing scalable technology solutions across multiple domains, including marketplaces, energy analytics, healthcare, and cybersecurity. I specialize in Java, Python, AWS, and modern web technologies, delivering robust applications and cloud-based systems that drive business efficiency and performance. As a Senior Technical Lead, I have successfully led multiple systems, including: Marketplace Platforms: Built scalable, high-performance systems for online booking and aggregation, managing multiple microservices, cloud deployments, and optimized service-to-service communication. Analytics & Data Platforms: Designed and implemented back-end APIs for real-time analytics in the energy and utilities sector, ensuring high performance, security, and data accuracy. Healthcare Systems: Developed secure platforms for managing and analyzing sensitive health data, leveraging microservices, AWS cloud, and database optimization strategies. Cybersecurity & Threat Analytics: Contributed to building secure, cloud-based solutions for threat detection and incident response, focusing on reliability and scalability. I bring deep expertise in cloud solutions (AWS), microservices architecture, database optimization (MySQL, MongoDB, DynamoDB), caching strategies (Redis), and scalable backend systems. I also guide technical decisions, ensure code quality, and mentor teams to deliver maintainable, secure, and high-performing systems.