Nagaraju K
Bangalore
Summary
Accomplished Principal Infra Developer with expertise in designing and implementing scalable, secure cloud-native solutions on Microsoft Azure. Achieved enhanced operational excellence through the architecture of complex multi-tier applications and the implementation of Azure best practices. Focused on delivering robust CI/CD pipelines and comprehensive observability solutions to enhance performance and security.
Overview
15
15
years of professional experience
1
1
Certification
Work History
Principal Infra Developer
Cognizant Technology Services
Bangalore
11.2022 - Current
- Designed and implemented scalable, secure, and cost-optimized cloud-native solutions on Microsoft Azure, aligning with best practices for cloud architecture and governance.
- Architected complex multi-tier applications utilizing Azure services such as App Service, Azure Functions, AKS, Azure Key Vault, and Azure SQL Database, etc.
- Implemented Azure resources using Azure Landing zones.
- Implemented Terraform modules for Azure IAAS and PASS resources. Deployed Azure resources using these modules in all environments.
- Designed, deployed, and managed AKS clusters with best practices on HA, security (Azure AD integration, RBAC), Governance, networking (CNI, Ingress Controllers), and DevOps automation.
- Implemented Nginx ingress controller, Cert-manager, Qualys using Flux GitOps in AKS clusters.
- Integrated AKS with Azure Container Registry (ACR) for seamless CI/CD pipelines and secure image deployments.
- Working on AKS DR strategies on Multi regions.
- Improved security by disabling public access on Azure resources by enabled private endpoints.
- Built comprehensive observability solutions using Azure Monitor, Application Insights, Log Analytics, and Container Insights to ensure proactive monitoring and performance tuning across distributed systems.
- Designed and implemented SLOs/SLIs and alerting strategies using Azure Monitor Metrics, Prometheus, and Grafana for production-grade AKS clusters.
- Blue/Green and Canary deployments strategies on AKS.
- Suggested HPA (for seamless patch upgrades on AKS clusters) to application teams on AKS clusters.
- Conducted architecture reviews and well-architected assessments for Azure-based workloads, driving optimizations in cost, reliability, and operational excellence.
- Implemented snyk integrations to scan Azure Git repos to fix vulnerabilities.
- Automated manual tasks in Linux and Windows servers using Ansible.
- Experience in HLD and guided on LLD with coworkers.
- Provide technical guidance and mentorship to team members.
Senior Server Admin
Epicor Software India Pvt Ltd
Bangalore
04.2016 - 11.2022
- Experience in working enterprise level environment and managing 5000+ servers include Prod, Dev, and Test servers.
- Experience in managing Linux servers in On-prem, Microsoft Azure.
- Experience in Terraform IAC tool and Ansible configuration management.
- Experience in Azure DevOps services.
- Knowledge in managing Subscriptions, MG, RG, IAM, Compute, Storage, VNET's, Subnets, NSG, LB, ALB, Azure DNS, VM scale sets, Web apps, Azure monitoring, Cost management and other services in Microsoft Azure.
- Knowledge in CICD pipelines, GitHub, Docker and Kubernetes.
- Prepared RHEL server builds using kickstart file and performing post build activities with Ansible playbooks.
- Experience in Linux Patching (Lifecycle management) on RHEL/CentOS servers using Spacewalk/Katello Foreman servers (like RedHat Satellite) with Ansible playbooks.
- Experience in RHEL server upgrades and migrations.
- Experience in managing RedHat cluster environment.
- Experience in managing RHEL IDM servers and sssd service.
- Experience in supporting Apache Tomcat, nginx applications and MySql, Oracle DB's.
- Experience in TCP/IP protocols, NFSv4, samba, sshd, sftp, DNS, postfix, etc.
- Working on AIX 7.2 server migration into Azure cloud using Skytap.
- Automating the tasks using Ansible playbooks and bash shell scripting.
- Scheduling and follow up of firmware upgrade, ESXi servers upgrade with Tier2 teams.
- Experience in managing VMWare VCenter, ESXi hosts.
- Experience in managing Nagios XI monitoring environment. Monitoring VMware vSphere environment in Nagios XI servers using VMA server.
- Performed POC on Site24x7, SolarWinds SAM monitoring tools.
- Experience in Solaris LDOM's and Zones.
- Assisting and mentoring Tier2 team on Change, Incident tickets, etc.
- Experience in SSL certificate renewal using DigiCert, AD CS and update the renewed certificates on Linux servers.
- Experience in troubleshooting hardware and OS Performance issues.
- Resolving Level3 Incident, change tickets and providing RCA.
- Experience in HP servers (ProLiant, C7000 chassis, Synergy blades), Dell servers, IBM servers, Oracle Sun servers.
- Documenting the Process/Steps in Confluence as KB articles.
Senior Associate - Unix
AT&T Global Business Services India Pvt Ltd
Bangalore
06.2013 - 04.2016
- Experience in working enterprise level environment and managing 1000+ servers includes Prod, Preprod, Dev and Test servers, managing 60+ clients worldwide.
- Resolving Level2 - Level3 Incident, Change tickets, iChanges and providing RCA.
- Experience in Incident Management, Problem Management and change Management Processes.
- Resolving the issues by attending Sev-1 Bridge calls and Chat rooms with DBA team, Apps team, Storage team, Network team, Firewall team. Etc.
- Enterprise level experience in package management and patch management on Solaris, Linux servers using yum.
- Experience in performance analysis, tuning, problem prevention, detection and resolution, disaster recovery, documentation, system automation with scripts, security, securing and hardening UNIX systems.
- Extensive experience in troubleshooting hardware and OS Performance issues.
- Experience in configuration SSH software to provide secure login, Password less login and data transfer with the support of scp, ftp, sftp connections and Jailed accounts.
- Experience in administration of Printers on Solaris and Linux.
- Experience in adding Netapp, EMC LUNs and NAS shares, NAS devices to Servers for ongoing space requirements on Solaris and Linux.
- Experience in DM Multipath and EMC Powerpath.
- Experience in SVM, LVM, VXVM and OCFS.
- Experience in TCP/IP concepts.
- Managing NFS, Samba server and clients.
- Performing vulnerability assessment and fixing the vulnerability by applying patches.
- Configuring and managing Inbound (IMAP) and Outbound (SMTP) Mail connections.
- Managing VNC connections on solaris and linux servers.
- Experience in Disaster Recovery conversion, testing and reversion.
- Performing Post build activities.
- Preparing MOPs and SMOPs.
- Automating the tasks using bash shell scripting.
Engineer-IT Infrastructure
Subex Ltd
Bangalore
07.2011 - 06.2013
- Installation, configuration & maintenance of Sun Solaris 10/9, RHEL 4.x/5.x/6.x.
- Providing on-call Production support for 350+ Production and Development Servers.
- Installation & configuration of Solaris using Jumpstart server and Linux using Kickstart servers.
- Troubleshooting the hardware and software issues, Firmware up gradation on servers, escalating and resolving the hardware issues with hardware vendors (Sun, IBM, HP & Dell).
- Experience in Designing & Building Solaris and Linux servers.
- Installing patches on Solaris and Linux.
- Setting up the password less logins using SSH.
- Configuring and managing Hardware RAID and software RAID.
- Working on EMC SAN products to allocate disks to Unix Servers.
- Experience in detecting and adding the LUNS on Solaris, Linux hosts.
- Configuring and managing SVM on Solaris & LVM on Linux.
- Working with version control Tool SVN.
- Experience in VMware ESXi 5.0.
- Experience in administration and managing Symantec Netbackup Enterprise server 6.5 & 7.1.
- Interacting with various teams such as Oracle database team, Development teams.
- Technical documentation.
Education
Bachelor of Engineering - Mechanical Engineering
Visweswaraiah Technological University
01.2007
Skills
- Azure services
- AKS
- Azure DevOps
- GitHub actions
- Terraform
- Prometheus
- Grafana
- Linux
- Windows
- Bash
Certification
- Microsoft Azure Fundamentals - AZ-900, https://www.credly.com/earner/earned/badge/61533368-c3e2-431a-990a-1681a2ba8f30
- Designing Microsoft Azure Infrastructure Solutions - AZ-305, https://www.credly.com/earner/earned/badge/110b4334-d47c-44db-ad7d-ceb0edf0a53a
Timeline
Principal Infra Developer
Cognizant Technology Services
11.2022 - Current
Senior Server Admin
Epicor Software India Pvt Ltd
04.2016 - 11.2022
Senior Associate - Unix
AT&T Global Business Services India Pvt Ltd
06.2013 - 04.2016
Engineer-IT Infrastructure
Subex Ltd
07.2011 - 06.2013
Bachelor of Engineering - Mechanical Engineering
Visweswaraiah Technological University