Karthick S

Software Developer with 3 years of experience in building and scaling server-side applications. Focused on REST API development using Node.js and AdonisJS. Expertise in managing SQL databases, Redis caching, and containerized deployments via Docker on Google Cloud Platform. Strong background in securing services with Keycloak and Role-Based Access Control (RBAC).

Software Developer at NGP Websmart Pvt Ltd (2023-01 – Present)

• Built and implemented high-performance RESTful APIs using AdonisJS (MVC) with PostgreSQL and ClickHouse for secure data exchange.
• Improved application performance by 60% through strategic Redis caching implementation for complex data queries.
• Integrated Keycloak for centralized Authentication and Authorization, implementing RBAC across microservices and securing internal services via gateway-level token validation.
• Designed and published an internal NPM package to standardize token verification and authorization logic, reducing code duplication across the service architecture.
• Deployed and managed containerized applications using Docker and YAML configurations to optimize deployment pipelines.
• Optimized batch processing by deploying Google Cloud Run Jobs, utilizing concurrency management to reduce processing time and resource consumption.
• Automated secret management and credential rotation by developing Google Cloud Functions (Node.js) triggered by Cloud Scheduler.
• Designed and implemented anomaly detection APIs using advanced algorithms to monitor electrical parameters (power, voltage, current) from Eniscope devices.
• Managed database optimization and migration tasks for PostgreSQL and ClickHouse environments.
• Automated email workflows using Mailgun to send energy reports to clients, tracking deliverability and failure rates to improve communication reliability.

Software Developer intern at Compunet Connections (2021-06 – 2021-11)

• Developed and maintained RESTful APIs using Adonis.js, focusing on routing and HTTP request handling.
• Collaborated on front-end debugging and quality assurance testing to improve application stability.
• Documented API endpoints and server-side logic to facilitate team collaboration and long-term maintenance.
• Utilized Bitbucket for version control and code integrity management within a team environment.

MSc in Information Technology (Integrated) in Information Technology – College of Engineering Guindy (Anna University) (2018 – 2023)

Higher Secondary Certificate (HSC) – AUPET Chinmaya Vidyalaya (2018)