• Developed secured applications for payment systems that integrate with existing telecom billing platforms for merchants like Apple, Microsoft, Spotify and Netflix.• Created in-house tool to validate SSL certificate chain based on various rules. Also, gave training to company- wide teams about 2-Way SSL.• Worked with global teams and partners in order to get a better understanding between both systems

• Designed and developed communication-engine micro-service which is responsible for orchestration of marketing campaign execution that daily sends 200M+ communications across multiple channels like sms, email, mobile push notification and web push notification.• Built frequency-capping micro-service from scratch which is responsible for controlling and throttling number of communications sent to end-user in each time window.• Setting up of Auto Scaling Groups, Automated Code Deployment and Load Balancers for various services deployed in AWS EC2 within a VPC.• Evaluated performance and benchmarking of services, their memory footprints and memory leaks if any, using various profiling tools like jVisualVM, Eclipse MAT, jMeter, Apache Bench.• Launched stateless micro-services with distributed approach, to enable horizontal scaling as per demand for cost optimization.• Programming various Kafka consumers and producers for cross-service communication in a scalable manner.

• Developed various Multi-Threaded Data Loading tools using in-house ETL Framework, which reads data from multiple sources, processes that data along with some quality checks and pushes data into multiple targets as per the configuration.• Handled Data Management Application Support for Index computation across Equities, Mutual Funds, Commodities and Futures.

• Responsible for end to end delivery of new features in Replenishment Module (RPL) that supports all the recharge activity for prepaid customer in telecom.• Visited Onsite for XL Axiata Account (Jakarta, Indonesia) and Globe Telecom Account (Manila, Philippines) for Business Requirement Gathering and Analysis and for Production Support for Turbo Charging v8.x Upgrade.• Led RPL Team and Migrated 60 million XL Axiata subscribers from Amdocs Billing Product v7 to Turbo Charging v8.1 during Production upgrade.• Developed Performance oriented SQL Scripts for Data Validation, Reconciliation and Reporting purpose on Production Database.• Created Audio Visual Demo for effective training in RPL, hence reducing training time.• Effectively managed parallel activities like Design and Coding for Change Requests, Performance Testing, System Testing and User Acceptance Testing Support.• Development of Shell Scripts for Monitoring Daemons and Processes on Production Servers.• Effective Co-ordination with Focals of Different teams for Cross Application Functionality and Issues.