Sr. Linux/Unix Engineer - DTI
(2023-06)
- Led the successful migration of enterprise ERP systems, including PeopleSoft (PHRST) and First State Financials (FSF), from HP-UX 11.31 Superdome servers to Red Hat Enterprise Linux 7 on VMware virtual machines, modernizing legacy infrastructure and improving scalability, performance, and supportability.
- Installed and configured Cybermation job scheduling agents on RHEL VMs to support automated batch processing and seamless integration with Mainframe systems, PeopleSoft, and Oracle environments.
- Replaced complex HP-UX legacy shell scripts with modular Ansible playbooks to automate tasks such as system provisioning, configuration management, patching, Oracle environment setup, and post-migration validation across RHEL VMs.
- Created and managed Linux filesystems both manually and via Ansible automation, including disk partitioning, LVM setup, XFS/ext4 formatting, mount point creation, and persistent configuration using /etc/fstab.
- Performed online filesystem expansions on HP-UX using lvextend and fsadm to meet increasing application and database storage demands with zero downtime.
- Executed HP-UX LUN migrations from production to test servers using vgexport/vgimport and map files; coordinated with storage teams to replicate LUNs using EMC RecoverPoint for reliable SAN-based replication and DR validation.
- Utilized Dynamic Root Disk (DRD) on HP-UX 11.31 to clone root volumes prior to patching, enabling safe rollback options and reducing downtime risk during OS upgrades and maintenance windows.
- Monitored and resolved issues with IBM TSM (Tivoli Storage Manager) 7.1 agents on HP-UX, including analyzing dsmsched.log and dsmerror.log, restarting TSM services, and troubleshooting failed backups to ensure data protection compliance.
- Investigated and resolved technical issues during and after migration from HP-UX to RHEL VMs, including OS compatibility problems, service disruptions, and performance bottlenecks—ensuring timely and stable cutovers.
- Provided post-migration support by working closely with application teams, DBAs, and infrastructure engineers to troubleshoot configuration issues, validate environments, and optimize system performance.
Automation Engineer - USPS
(2022-08 - 2023-05)
- Strong Experience of automation/orchestration using the following tools: Ansible, Ansible AWX, YAML
- Solid Understanding of modern operating systems and network technologies sufficient to automate associated processes RHEL
- Ability to automate solutions to repetitive problems/tasks
- Ability to troubleshoot equipment problems and perform complex system tests
- Develop and maintain accurate documentation for internal procedures and services
- Strong background in shell scripting
- Ability to use a wide variety of open-source software
- Able to communicate well with other members of the development team
- Install and configure Datastax DSE Cassandra 6.8.25 using ansible playbook
- Install and configure DataStax Opscenter and DataStax agent using ansible playbook
- Configure new file systems on servers using ansible playbook
- Support Red Hat Linux 7,8, and 9 on Vmware
- Create Ansible AWX job templates to automate sysadmin tasks
Sr. Linux/Solaris Engineer - Unisys
(2021-11 - 2022-03)
- Monitor system performance or event logs for normal operations.
- Automate patching Red Hat servers using Ansible.
- Support Sun Solaris 10/11 and Red Hat 6, 7, and 8 servers.
- Worked closely with Georgia Technology Authority to advise best practices.
- Support servers under Centrify control in GTA agency.
- Good working knowledge of storage infrastructure SAN and NAS.
- Configure and support HP ServiceGuard Cluster on Linux and HP-UX
- Configure Linux servers to Active Directory using sssd.conf
- Data center migration of Sun Solaris and Red Hat servers.
- Create and increase file systems using Veritas Volume Manager and LVM.
- Assist on customer facing issues with Driver License, Medicaid and other agency applications.
- Participate in areas of technical innovation and cost saving improvements.
- Perform tactical system performance monitoring.
Sr. Linux/Solaris Engineer - Mizuho Securities
(2020-01 - 2020-09)
- First and Last line of support for Red Hat, VMware & Unix related inquiries and issues
- Build and deploy Solaris packages for internally developed and third-party applications
- Monitor, analyze, troubleshoot, and resolve system related and user reported issues
- Build, configure, patch, and maintain Solaris 10 physical servers and Solaris Logical Domains (LDOMs)
- Configure Unix File systems (UFS), Zeta File System (ZFS), NFS and SAN attached devices
- Address hardware and software issues; escalate problems within the team and external vendors.
- Coordinate hardware break fix activities with support engineers
- Solar flare NIC experience (Low Latency)
- Supporting MUREX application for Traders
- Create ansible playbooks to automate systems admin tasks for Red Hat Servers
- Assisted in building People Soft Sun Solaris LDOM for migration
Sr. Linux/Unix Engineer - Standard Chartered Bank
(2018-08 - 2019-04)
- SME role to provide all-lines (1st-3rd) BAU Unix/Linux Sun Solaris 8/9/10 and Red Hat Linux 5/6/7/8 to support the Ecommerce business.
- Data Center migration of Sun Solaris and Red Hat Linux servers.
- Low Latency experience
- Shell scripting skills and Ansible.
- Write effective simple Ansible playbooks
- Proficient with Python
- Support servers under Centrify control.
- Good working knowledge of Storage Infrastructure SAN and NAS.
- Perform system management functions such as configuration, security, resource monitoring, automation and reporting
- Experience installing Mellanox, and Solar Flare I/O Products on Red Hat Linux servers.
- Proficient in in various types of hardware and software platforms such as HP, DELL, and VMware.
- Ability to coach and train personnel in best practices and advanced technologies.
- Ability to interact effectively at all levels of the organization.
- Work closely with application teams to identify performance bottlenecks.
- Create and increase file systems using VERITAS Volume Manager, LVM or SVM.
- Ability to think' outside the box' and troubleshoot complex infrastructure challenges is a must.
- Patched many Linux servers using Ansible playbooks from Red Hat 6.9 to 6.10
- Supported and created FTP connections between Standard Charter Bank to Bridgewater to receive incoming financial files for traders on our Red Hat Linux Servers.
- Supported and troubleshot trading applications running Sybase on our Sun Solaris Servers
Sr. Linux/Unix Engineer - Bank of America
(2017-05 - 2018-04)
- Experienced and knowledgeable in Sun Solaris 9/10 O/S and Red Hat Linux 6/7 O/S
- Experience and complete working knowledge of operating system base health/welfare and x86 midrange IBM, HP, Dell hardware troubleshooting.
- Experienced and knowledgeable in VCS & RHCS clustering solutions for Red Hat Linux.
- Experienced and knowledgeable in PXE, 10/40GB, Mellanox, SolarFlare and Fusion I/O Products and Technology Network Cards.
- Experience and knowledge of all standard base health and welfare monitoring for new and existing Low Latency servers' infrastructure at Nextgen.
- Design and write test automation scripts in Python, ILO RESTful API, and Redfish API
- Knowledge and experience supporting core systems and storage platform services in which the infrastructure is dependent (DNS, NTP, PTP, EFS, SMTP, NAS, Red Hat clustering, Solid State disks)
- Experience in diagnosing, researching and resolving any system platform related issues.
- Responsible to develop a close partnership with Nextgen Trade Plant Electronic Trading client support team and have a solid knowledge of their applications.
- Install and troubleshoot Ansible on central nodes and managed hosts.
- Use Ansible to run ad-hoc commands and playbooks to automate tasks.
- Write effective simple Ansible playbooks.
- Patched many Linux servers using Ansible playbooks from Red Hat 6.8 to 6.9
- Supported cgroups, and vas on all dev, qa and prod servers.
- Knowledge and experience in storage systems (SAN, NAS)
- Supporting Nextgen Trade Plant Electronic Trading Applications.
- Installed and configured Mellanox OFED for our Mellanox cards to support Time Keeper applications.
Sr. Linux/Unix Engineer - UBS
(2015-10 - 2016-03)
- To Support oracle database upgrade/refresh project for IB and WMA servers.
- Working experience with virtualization Solaris LDOM and zones.
- Working experiences with ASM/Oracle RAC on Linux and Solaris technologies.
- Experience in writing shell scripting to automate tasks for Opsware agent installs and lun scanning.
- Install/Uninstall opsware/dma agent on servers for oracle database upgrade.
- Setup ssh trusts between Oracle RAC servers for upgrades.
- Increase files system /app/ora, /tmp, and / using Veritas Volume Manager, LVM, or SVM.
- Writing shell scripts to install puppet agents.
- Supporting Traders, Wealth Management, asset management, investment banking, Prime Brokerage
