Arvind Singh Email and Phone Number

As a Sr. Manager SRE at Zeta, I spearheaded the Site Reliability Engineering team with 18 Engg to ensure the reliability, scalability and performance of Payzapp app for HDFC. A fairly complex system with 700+ applications at Bank's level security practices and on AWS Kubernetes environment. Responsibilities:- Guarding SLO’s/SLI’s of services by cross team collaboration for faster Incident and problem tkt resolution.- Implemented automation for infrastructure tasks and driving reliability initiatives across the organization.- I collaborated with cross-functional teams to enhance system performance, optimize cloud resources, problem resolutions and streamline operational processes.- I played a key role in mentoring and coaching team members to foster a culture of continuous feedback, improvements and collaborations.- Implementing innovation to simplifying life as a SRE.Accomplishments- Prepared and implemented Incident management process, SRE Goals, Rituals, Deployment process, Error budgeting and Hiring process.- Implemented SAFE Deployments to reduce Incident due to human errors.- Implemented SAFE Deployments practise to reduce Incident due to human errors.- Simplified SRE Monitoring by working with tools team to provide consolidated view of complete site, which will present consolidate view of alert by priority, namespace health, component health. SLI failures added options to directly link alert to tkt creation. For end to end traceability. This reduced the manual effort in going through each cluster monitoring pages.- Implemented HPA for High performance. The default HPA doesn't work as expected so we evaluated the each HPA parameter setting and tuned it to handle spike loads without over provisioning nodes.- Resolved performance issues like DNS resolutions, CPU Throttling due to wrong calculation of request and limits, Formula for defining Memory request and more.These helped to reduce false alerts and unnecessary alerts.

- Was part of core team for Zeta's and Sodexo partnership in India. Participated in due diligence round with sodexo's Internal and external teams and lead effort for integration with Zeta's stack.- Onboarded Sodexo's Acquirers (FIS, ATOS, PineLabs, MSwipe, Jio, Innovity ) Established VPN connectivity, User migration from Yallamanchilli made Live Sodexo transaction via Zeta's stack- Build SOC team to handle Sodexo's Services 24x7 with help of 2 vendor’s - Successfully completed Security and InfoSec audits ( PCI DSS, SOC-2, ISO 2007 ) for first time and ongoing basis.- Implemented Escalation policies and established rapport with diff Acquirer for faster resolution and response and with Vendors for Hardware and people.- with all this also Implemented Incident management & Change management @ Zeta.- To increase better SLA for incident, implemented 10min to resolve dashboards, which present quicker way to understand the problem at once rather than checking multiple grafana dashboards.- Drove initiative on skill grown in Devops and SOC team by running active training charter with exploring new development industry.- Implemented fully automatic Active Active failover across 2 Sites (Mumbai & Hyd), for ACS, POS & ATM transactions on all card networks at service and vendor level.- Build new site for Sodexo Europe which is cloud agnostic so no dependency on AWS, GCP or Azure.

I joined Zeta when we were building the who system from Scratch. I was managing Zeta's AWS, Databases ( Postgresql, Cassandra) , Networking, ELK and other areas.- Build GrSec patched kernel Image for applications stack.- Setup complete monitoring for java application in Zabbix, with escalation matrix. Scripted new application onboarding in zabbix.- Setup Thales HSM for Card processing and integration with application.- Established connectivity & Integrations with Multiple Card Networks ( Visa, Mastercard, RuPay, Amex)- Onboarded RBL, Kotak and IDFC Banks to Zeta's Employee benefit program.- Setup Zeta's First DC in GPX, Mumbai-

Moved to DevOps. Integration of services and API. Did transition from Perl to Ruby and loved it. Working on Yahoo ! Mail and Calendar property.

Setup new server labs for Post graduate students with central authentication and storage ( NIS and NFS architecture ). Upgraded network infrastructure with Avaya switches. Implementation of caching and proxy server for internet. Up gradation of Mail server ( QMail ) and other important servers . Handled HP Unix, IBM Aix and True Unix servers.