Arun Marwaha Email & Phone Number

Faridabad, Hr, In

Noida, Uttar Pradesh, In

Led the design and implementation of edge data centers, overseeing the network, compute, storage, and cloud architecture, ensuring all systems met performance and scalability needs.Defined data center roadmaps and capacity planning strategies for multiple customers, delivering solutions that met both current demands and future growth projections.Designed and deployed cloud regions and availability zones, focusing on redundancy, scalability, and fault tolerance for edge dcs and private cloud environments.OpenStack Deployment & Management:Deploy, configure, and maintain OpenStack environments, including compute, networking, and storage components.Implement multi-tenant private cloud architecture.Configure OpenStack networks (VLAN, VXLAN, GRE, etc.) and manage Open vSwitch (OVS) for advanced networking.Troubleshoot and resolve issues with OpenStack services and ensure high availability and scalability.Ceph Storage Integration:Deploy and configure Ceph storage clusters, ensuring optimal performance, reliability, and scalability.Integrate Ceph as a backend for OpenStack components like Cinder, Glance, and Nova.Monitor Ceph cluster health, manage OSDs, and handle failure recovery and rebalancing operations.Automate Ceph operations using tools like Ansible or other automation platforms.SAN Storage Integration:Collaborate with the storage team to integrate SAN storage solutions (such as Dell EMC) with OpenStack Cinder for block storage management.Work with storage protocols like iSCSI, Fibre Channel (FC), and NVMe over Fabric (NVMe-oF).Ensure seamless interoperability between Ceph, SAN storage, and OpenStack, including data migration and replication.Cloud and Storage Optimization:Monitor and analyze the performance of cloud and storage systems, optimizing configurations for improved efficiency and cost-effectiveness.Implement backup, recovery, and disaster recovery strategies for OpenStack and storage systems.

Chicago, Il, Us

 Designed and deployed OpenStack-based cloud infrastructure, including compute, storage, and networking components.  Designed, deployed, and managed Ceph storage clusters for optimal performance and scalability.  Experience with storage technologies such as RADOS, RBD, and its integration with OpenStack services.  Ensuring high availability, management, maintenance of ceph nodes and OpenStack nodes across difference data centers.  Implemented and maintained OpenStack services like Nova, Neutron, Cinder, and Swift, ceilometer, gnocchi etc ensuring optimal performance and scalability.  Conducted system monitoring, performance tuning, and troubleshooting to maintain high availability and reliability of cloud services.  Developed disaster recovery strategies and solutions, including failover and failback procedures, to ensure business continuity and mitigate risks.  Implemented network monitoring and intrusion detection systems to proactively identify and mitigate security threats.  Implemented backup and recovery solutions, including disk-based backup systems and offsite replication, to protect critical data and applications.  Solutioning and deployment of various DevOPS automation projects like Ansible, Puppet, Chef, Git as per client requirements.  Deployment and management of Security related NIDS/HIDS, SIEM/SOAR devices Handling of level 4 critical issues/escalations at infrastructure level.  Configuring High Availability by setting up HA proxy and Load Balancers to ensure 100 percent availability for mission critical web projects hosted in our Datacenters.  Working on Ansible & Puppet to automate tasks on Linux nodesLed a team of 8 individuals in operations, fostering a culture of collaboration, innovation, and accountability.  Implemented process improvements that increased team efficiency  Mentored, coached & provided constructive feedback to team members to enhance their skills and performance

Copenhagen, Dk

Managing web, database and mail clusters with the help of automation tools like chef, ansible.  Working on Git to manage the repositories for the versioning of the configuration files.Management of Mail and DNS infra based upon postfix, bind and powerDNS etc.  Working on monitoring tools like grafana, nagios etc.  Working on LXC containers  Working on optimizing and performance tunning of the databases like MySQL, Postgresql

Chicago, Il, Us

Managing numerous variants of Linux/Unix (Centos, RHEL, Ubuntu, Debian) servers hosted over virtualized (VMware, OpenStack, Xen) platform and physical machines hosted in our datacenters.  Configuring and managing web application firewalls (WAF) such as ModSecurity, Radware, Indusface to mitigate the DOS and Layer 7 web attacks.  Configuration and Management of Baracuda Load balancers.  Deployed dedicated IPtables firewall in HA using CoroSync, Pacemaker.  Setting up and managing MySQL cluster management, MariaDB encryption.  Managing and troubleshooting Bulk Mailing services and various mail servers such as Zimbra using PostFIX,etc on day to day basis.  Tuning, Optimizing, Analyzing, Repairing and Recovering databases hosted over our MySQL, PostgreSQL servers.  Monitoring server configuration and Maintenance for Nagios, Smokeping & Cacti.  Managing site to site VPN IPsec tunnel with SonicWALL, Sense, Cisco ASA and other firewalls.  Administrating Roaring Penguin AntiSpam services for email filtering based upon SPAM scores over various Realms.  Patching up, Intrusion detection, hardening the security of Linux servers under the scheduled maintenances.  Deployed portal for Tunnel Management (reinitiate tunnels) with the help of scripts.  Deployed DNS Master Slave Infrastructure

Chicago, Il, Us

• Managing numerous variants of Linux/Unix (Centos, RHEL, Ubuntu, Debian) servers hosted over virtualized VMware (ESX and ESXi v5) and physical machines.• Configuring and managing Physical Dell Essentials Powered Servers via DRAC in our Data Centers across the globe.• Configuring High Availability by setting up HA proxy and Load Balancers to ensure 100 percent availability for mission critical web projects hosted in our Datacenters. • Working on Ansible and Puppet to automate tasks on Linux nodes, creating modules, resources etc.• Configuring and managing web application firewalls (WAF) to mitigate the DOS and Layer 7 web attacks.• Managing Instances in AWS, and familiar with EC2, VPC, S3, Cloud watch, WAF, etc. • Setting up and managing MySQL Fail-overs using Master/Master and Master/Slave replications. • Troubleshooting various web technologies Apache, tomcat, jboss, NignX • Managing and troubleshooting Bulk Mailing services and various mail servers such as Zimbra using PostFIX, Sendmail etc on day to day basis. • Tuning, Optimizing, Analyzing, Repairing and Recovering databases hosted over our MySQL, PostgreSQL servers.• Monitoring server configuration and Maintenance for Nagios, Smokeping & Cacti. • Managing site to site VPN IPsec tunnel with SonicWALL, Sense, Cisco ASA and other firewalls. • Administrating Roaring Penguin AntiSpam services for email filtering based upon SPAM scores over various Realms. • Patching up, Intrusion detection, Hardening the security of Linux servers under the scheduled maintenance.

Austin, Texas, Us

• Managing AWS instances including tasks like Setting up EC2 instances, managing S3 etc• Administration of database, mail server, Server setup, monitoring, optimization, maintenance.• Daily run and maintenance of systems including monitoring for system health, performance, and security.• Creating shells scripts for the automated tasks and perform migrations of Kayako over various servers.• Handling the critical issues impacting the performance and security concerns by performing server hardening through Iptables, SElinux etc.• Managing backups, files, cron jobs, email piping through various panels such as Plesk, WHM, C-Panel.

Austin, Texas, Us

• Setting up and configuring Mail servers, Web servers, MySQL, PHP, LAMP, WAMP and XAMPP environments over different physical and virtual servers.• Troubleshooting the root cause for day to day issues by analyzing logs of different mail, web and database servers in real-time at our clients’ live production servers.• Installation and configuration of Kayako Helpdesk, a PHP based web software over Linux and Windows servers of our clients’.• MySQL database creation, tuning, user privileges, backup import and export on Windows/*nix servers.

Pune, Maharashtra, In

• As a part of RAS Team, proactively monitored and administered the user accounts on AT&T Focus Servers over LDAP database remotely.• Responsible for monitoring focus tool and providing the access to the clients on the Linux Focus Database Server based on privileges assigned to their user accounts.• Analyzing the data collected from AT&T VPN usage details of the clients by performing root scan on the basis of connection summary logs of LIG, VIG and SIG devices.• Coordination with network engineering and network maintenance teams/individuals to support client deliverables such as Data extraction.• Monitoring, Analysis, Remediation, and Customer Advocacy• Participation in monthly operation results review with clients• Monitoring chronic SLA violations, Credit Management

Bachelor Of Engineering (B.E.), Information Technology Linux

Electronics And Communication Engeering

Metric

Education record