Hariharan Senthilvel Email & Phone Number

Mumbai, Maharashtra, India

-> Mainly focused on delivering key features aligned with OKRs, while enhancing the performance and stability of services that enable customers to run over 1.5M Selenium and Appium tests daily on real physical devices through Browserstack Automate.-> Explored AWS S3 to identify cost-saving opportunities and led the planning and implementation of cost reduction initiatives for 3 half-yearly OKRs, achieving a 15% reduction in product operational expenses. Delivered $50K in annual savings by optimizing S3 storage class for user session logs, $7.5K monthly by compressing logs and managing their retrievals, and $8K monthly by streamlining storage of debug screenshots (0.2M objects/day).-> Developed and implemented custom media upload functionality to support mid-session media uploads for Selenium and Appium sessions, and pre-session extension installations for desktop sessions, to unblock multiple customers, securing deals worth $800K, and now enabling seamless usage across half a million daily sessions by multiple users.-> Specified and implemented an automated region toggle for a critical component of the automate product, leveraging HA parameters to prevent product downtime during region-specific issues.-> Established GRR compliance for India region customers by implementing robust data protection measures across Automate and App-Automate components for user PII and test session logs (Selenium, Appium, Cypress, Playwright, Puppeteer). This initiative secured over $2M in new customer deals.-> Implemented robust spam mitigation and rate limiting on NGINX, leveraging best security practices to block spam and invalid requests, ensuring system stability and maximising uptime.-> Managed BAU operations and rotational on-call, resolving production issues, ensuring SLA compliance, and re-architecting services for high availability and actively involved in cost estimation planning initiatives

Chennai, Tamil Nadu, India

-> Implemented a robust test environment using Docker and K8s, empowering developers to manage resources efficiently and independently of the staging environment, automated deployment processes, driven by developer inputs (e.g., dev branch details), enable seamless replication of the production environment, leading to adoption by approximately 78% of developers across teams.-> Implemented Incremental Upgrade logic in the CRM application, enabling strategic release upgrades rolled out to a percentage of servers while directing a portion of users to upgraded instances, by leveraging NGINX's sticky algorithm for web traffic and an API gateway for seamless API management. This minimised user impact during releases and facilitated rapid rollbacks in case of issues, resulting in a 60% reduction in user disruptions, even when problems were identified just before the full release and multiple products inside zoho were on process to adopt this logic for their upgrades too.-> Spearheaded the internal integration of Zoho projects with Zoho CRM, implementing project creation and task management functionalities via REST APIs and callbacks. This integ. enhanced workflow efficiency and was adopted by approximately 12% of CRM users.-> Implemented ticket functionality in the related lists of two major modules within Zoho CRM by integrating with Zoho Desk, effectively managing data integration for approximately 10M records, enabled timely resolution of customer grievances, while also addressing customer issues to improve overall service efficiency.-> Involved in Business-As-Usual (BAU) and data center (DC) switch maintenance activities. Automated pre-checks for transitioning from the main data center to the disaster recovery (DR) data center in case of issues or maintenance needs, significantly reducing manual intervention and resource consumption.-> Worked with experiment of Hugo to provide a static site generation for the help documents, where only the markdown content varies.