Mahesh Kumar Sunnappu

● Implemented and oversaw IT-enabled operational systems to improve workflow efficiency and incident tracking. ● Coordinated and documented technical incident responses, performing root-cause analysis for process optimization. ● Maintained operational data integrity through systematic reporting and dashboards. ● Collaborated across teams to ensure compliance with internal software and data handling protocols.

● Supported IT-enabled supply chain and inventory management systems, ensuring data accuracy and quality compliance. ● Monitored inventory via ERP tools and performed defect analysis for system input errors. ● Generated performance reports and dashboards with 98% accuracy. ● Implemented process improvements using digital systems, increasing operational efficiency by 8%.

● Designed and executed automated and manual testing across web (E-Store), mobile apps (Pulse, Celcom LifeApp), CRM (Oracle Siebel), and Convergent Billing Systems (CBS). ● Developed 1000+ rigorous test cases for progressive and regression testing. Collaborated with developers and analysts to reduce bug-related delays by 15%, improving software quality. ● Supervised a QA team of 6+, improving compliance from CMMI Level 3 to Level 4. ● Integrated automation frameworks to reduce manual testing effort by 25%. ● Monitored system performance and prepared technical reports for stakeholders.

● Performed end-to-end testing on ServiceNow, BPM, and web projects for Vodafone. ● Conducted integration testing for 15+ workflows in FIT, pre-prod, UAT, and production environments. ● Collaborated with cross-functional teams to reduce defects and achieve 95% performance metrics. ● Validated data integrity and business process compliance across systems. ● Documented technical findings and recommended system improvements.

● Executed manual and automated test cases for Workday MIS and HR integrations. ● Conducted integration testing to ensure seamless data flow across platforms. ● Validated data accuracy and integrity across multiple Workday modules. ● Provided technical support and training to end-users during testing cycles.

● Assisted in telecom network maintenance and testing, including switches, routers, and base stations. ● Performed system validation and quality assurance tests on telecom equipment. ● Troubleshot network and software issues to ensure optimal system performance. ● Collaborated with senior engineers to integrate new technical equipment into existing networks.

Practical Dissertation: Design and Implementation of Penetration Testing for Smart Home IoT devices As part of my practical dissertation, I investigated the security structure of smart home Internet of Things (IoT) devices. Specifically, I focused on smart bulbs and smart plugs within a network. Here’s what I accomplished: Purpose: Verified the security compliance of smart IoT devices and explored how penetration testing methodology strengthens the security posture. Objectives:PTES Methodology: Demonstrated the application of the Penetration Testing Execution Standard (PTES). Vulnerability Assessment: Identified vulnerabilities related to authentication, encryption, and other security aspects. Attack Simulation: Simulated various attack scenarios to understand their impact. Recommendations: Provided actionable recommendations to enhance security. Results: Documented findings and presented actionable insights.