Omar Gibbs

Omar i s a v e r s a t i l e I T f o c u s e d p r o f e s s i o n a l s p e c i a l i z i n g a s a c ommitted S p l u n k E n g i n e e r a n d d e v e l o p e r w i t h a b a c k g r o u n d i n L i n u x A dministration. H i s e x p e r t i s e e n c ompasses d i v e r s e a s p e c t s o f S p l u n k, r a n g i n g f r o m a r c h i t e c t u r a l c a p a c i t y p l a n n i n g a n d b u i l d s t o t h e c r e a t i o n o f d y n amic d a s h b o a r d s t h a t e n g a g e a p p l i c a t i o n a n d s e c u r i t y t e ams. Omar i s e n t h u s i a s t i c a b o u t j o i n i n g a f a s t - p a c e d e n v i r o n ment w h e r e S p l u n k o p t i m i z a t i o n i s a p r i o r i t y, a n d h e c a n c o l l a b o r a t e w i t h c r o s s - f u n c t i o n a l t e ams i n e f f o r t s t o d r i v e o r g a n i z a t i o n a l o b j e c t i v e s f o r w a r d . Splunk Engineer

GEICO, Fredericksburg, VA

Expand existing indexer cluster to add 40 new indexers

Set up disaster recovery plan by implementing multi-site clustering

Create high quality dashboards for a wide range of teams and domains, providing high visibility into the data generated by tools - such as: Automic, Kubernetes, Cisco ASA devices, Microsoft SQL servers, EMC VNX, Crowdstrike and others - utilizing advanced XML, CSS, HTML for custom visualizations, loadjobs, lookups and loadjobs and base search for performance optimization, and drilldowns & inputs for interactivity

Manage and onboard data sources from application and network teams

Troubleshoot a multitude of issues with the environment: missing data; dashboards not executing searches; ITSI itoa_* roles permissions issues; slow index & search layer performance; SSL certificates verification failure errors; duplicate fields extracted on the index-time; bucket replication issues and others

Expand standalone Searchheads to Searchhead Cluster

Utilize advanced regex: extract fields at search time; filter inbound network events in syslog-ng.conf; perform pattern searching queries via the regex command

Configure Linux storage via LVM

Perform CIM efforts by normalizing field names by field aliases, extracting fields, adding fields via lookups and validating the data against the data models

Optimize searches running over tremendous amounts of data by populating and utilizing summary indexing

Create a set of throttled alerts for netops, sysadmins, and Automic PODs

Create custom TA utilizing configurations such as props.conf and transforms.conf to execute proper data analysis

Support end-users: troubleshoot & optimize search queries; help with SH daily usage, provide knowledge on topics such as, search execution best practices and dashboard creation & views development

Configure integration of SAML and Splunk

Waldorf, MD

*insert burner phone*

*insert professional email*

Certified Splunk Enterprise Administrator

Certified Splunk Power User

Certified Splunk Core User

Linux

Windows

Bash/Shell

XML

Regex

AWS

Git

Python

SQL

Splunk

Tableau

Bachelor’s Degree

Bowie State University

Bowie, MD

September 2021-Present

Splunk Developer

CLEARME, Washington, DC

Hosted a set of Splunk Development Best Practices sessions transferring knowledge on subjects of data development, dashboard creation & optimization, creating knowledge objects, using summary indexing and lookups for optimized search performance etc.

Built various dashboards that incorporated interactive visualizations, drilldown capabilities, and real-time data insights.

Worked with SPL on a daily basis; ran search queries using commands which include but aren’t limited to: eval, stats, transaction, rest, chart, table, dedup, join, eventstats, extract, foreach, geostats, metadata, predict, rex, and regex.

Conducted the use of advanced regex and rex expressions to extract and manipulate data from unstructured logs, enabling effective field extractions and accurate data indexing.

Leveraged Splunk's kvstores to create scalable and efficient data models.

Utilized lookups and macros in Splunk to enhance search capabilities, enabling efficient data enrichment, correlation, and field-level transformations.

Developed macros which provided non-technical SPL users to utilize sophisticated SPL queries.

Established a common data format in the infrastructure by performing CIM efforts to onboarded data sources.

Created alerting mechanisms within Splunk to proactively monitor critical system events and anomalies, ensuring timely incident response and minimizing downtime.

Developed custom visualization-based Splunk apps for application teams extending Splunk's functionality and providing tailored solutions for specific business needs. Linux System Administrator

COMCAST, Philadelphia, PA

Successfully managed and maintained a diverse Linux server environment comprising over 100 servers, ensuring their smooth operation, high availability, and robust security.

Proficiently installed, configured, and updated Linux operating systems (such as CentOS and Ubuntu) across the server infrastructure, meticulously following established standards and best practices.

Diligently monitored system performance, promptly identifying and resolving any issues related to CPU, memory, disk utilization, and network connectivity to optimize server performance and guarantee uninterrupted service.

Skillfully administered user accounts, access controls, and permissions, guaranteeing data security and compliance with company policies and regulations.

Expertly handled and fine-tuned crucial network services like DNS, DHCP, and SSH, facilitating seamless connectivity and streamlined network operations.

Implemented and maintained reliable backup and disaster recovery strategies, regularly performing backups and meticulously testing restoration processes to safeguard data integrity and ensure system recoverability.

Methodically diagnosed and resolved server and network-related problems, employing thorough root cause analysis and implementing effective solutions to minimize system downtime and enhance overall reliability.

Enforced comprehensive security measures, including robust patch management, cutting-edge intrusion detection systems (IDS), and firewalls, to proactively defend against potential threats and vulnerabilities.

Streamlined operational efficiency by automating routine tasks and processes through the skillful use of shell scripting (such as Bash and Python) and popular configuration management tools like Ansible and Puppet.

Conducted regular system audits and meticulous vulnerability assessments, addressing identified weaknesses promptly and implementing necessary security patches and updates to uphold system integrity.

January 2020–August 2021

April 2016–December 2019

Linux System Administrator

HOME DEPOT, Columbia, MD

October 2014-April 2016

Implemented virtualization technologies (e.g., VMware, KVM) to optimize server resource utilization, enabling consolidation of multiple virtual machines on a single physical server and reducing hardware costs.

Collaborated with the network team to configure and manage network devices (e.g., switches, routers) and implement secure network architectures (e.g., VLANs, subnets) for efficient data flow and enhanced network security.

Conducted regular system performance tuning, including optimizing kernel parameters, adjusting file system configurations, and fine-tuning network settings, resulting in improved overall system responsiveness.

Oversaw the configuration and management of storage systems (e.g., SAN, NAS) to ensure reliable and scalable data storage, implementing RAID configurations and monitoring disk usage for optimal performance.

Implemented backup and recovery solutions, such as utilizing tools like rsync and tar, to create secure and reliable backups of critical data, minimizing the risk of data loss in case of hardware failures or disasters.

Assisted in the planning and execution of server hardware upgrades and migrations, coordinating with vendors and stakeholders to minimize downtime and ensure a smooth transition.

Actively participated in incident response and resolution, promptly addressing system outages and service disruptions, analyzing logs and conducting root cause analysis to prevent similar issues in the future.

Implemented and managed centralized authentication systems (e.g., LDAP, Active Directory), ensuring secure and unified access control across multiple servers and applications.

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