DANIEL ADU-BRAFO

ac4n31@r.postjobfree.com

267-***-****

Certifications

Red Hat Certified System Administrator (RHEL 7)

Certificate number: 160-086-336

Education & Training

Red Hat Linux Training

Virginia Commonwealth University, BS in Biology

SAS Training

Elastic Core Operations Training

AWS Training

Qualifications

Linux administration experience in a large network environment

Solid understanding of file system management

Strong understanding of user account management

Solid understanding of YUM and RPM

Good experience using Chef to deploy code on Linux and Windows systems

Well organized with strong problem-solving skills, good communication and an ability to work on team or independently

Experience in writing shell scripts to collect the system performance information, account information, remote logging for root password changes etc

Good knowledge of managing application servers like Apache, Tomcat and JBoss

Strong experience with monitoring tools like Elastic, Splunk, Nagios XI, New Relic, Zabbix

Experience in writing Chef recipes to perform various system tasks

Good knowledge of configuring Nagios to monitor system resources

Expertise in GitHub for version management

Hands on experience in automation and configuration management Chef

Proficient in Unix Shell Programming, sed, awk

Good understanding on Cloud services like EC2, VPC, ELB, Auto-scaling, IAM, CloudWatch, CloudTrail, CloudFormation, S3, Elastic IP’s, and managing security groups on AWS

Technical skills: Linux Distributions (Red Hat, CentOS), Monitoring tools (New Relic, Splunk, Zabbix, SolarWinds, Nagios XI), Marklogic, F5 Load balancing, Pagerduty, Ticketing systems (HEAT Ticketing system, ServiceNow, CALT), DUO Mobile, JIRA, Nessus Security Center, Elastic stack, Symantec Endpoint Protection, AWS, OpenVPN, Chef, JBoss, Tomcat, Shell scripting

Professional Experience

Accenture Federal Services, SADC December 2016 – Present

Linux Systems Administrator

Assisted in attaining and maintaining FedRAMP authorization

Experience installing and configuring Elasticsearch, Logstash and Kibana to manage logs

Managed user accounts using Windows AD

Automated patch deployment using Chef on local infrastructure

Support 24/7 high availability production servers

Configured highly available systems using launch configurations and auto-scaling groups in AWS

Experience configuring AIDE to check filesystem integrity

Configured OpenVPN for user authentication with Windows AD

Support applications running Java, Tomcat, JBoss

Configured Symantec EPP as IPS/IDS solution on all systems

Improve automation through scripting enhancements

Installed and configured OSSEC to monitor Linux and Windows OS

Written and developed shell/Perl scripting for application performance and system maintenance

Installed and configured ZAProxy to scan web servers

Installed and configured ManageEngine ADSelfService Plus for users to reset passwords and unlock accounts

Worked on automating the environment using configuration Management tool Ansible

Configured Nagios to monitor the health of servers

Configured CloudTrail and CloudWatch to monitor AWS account logs and instances

Configured AWS IAM roles, S3, VPC, EC2, Security Groups, CloudFormation

Performed compliance and vulnerability scans of all systems using Nessus

Resolved Nessus vulnerabilities findings to stay compliant with FedRamp

Camber Corp., San Antonio, TX January 2016 – December 2016

Linux Helpdesk Analyst

This is a project for the Administrative Office of the US Courts support division. We support CM/ECF users and their servers. We also support court personnel with remote access authentication, logging using Splunk, FAX and IPT systems.

Checked alert logs, trace files and file system maintenance

Performed patching and various kinds of upgrade

Controlling the system logging services, and examining system log files of all system events

Password configurations and process monitoring

User management, creating and managing user account, groups and access levels

Monitored system performance of virtual memory, swap space, disk utilization and CPU utilization

Configured IP Telephony phones

Improved logging for servers using Splunk

Supported applications running Tomcat

Supported remote access authentication using DUO

Investigated and troubleshot remote access authentication for users

Investigated and troubleshot Active Directory issues for users

Investigated and troubleshot server slowness issues

Accenture Federal Services, Reston VA April 2015 – October 2015

Linux Systems Administrator/Team Coordinator

Originally hired as a Linux Systems Administrator responsible for file system support and maintenance as well as basic Linux OS patching. I was also later given the position of Team Coordinator to coordinate meetings and make sure everyone on team is working to meet their deadlines.

User management, creating and managing user account, groups and access levels

Performed daily health check of the environment

Monitored the servers in the environments using New Relic

Post-provisioning and certification of servers

Processes administration like monitoring, start/stop/kill various processes/sub process

Installed, upgraded, queried and removed software packages using RPM and YUM

Maintained file systems; checked and repaired file systems and monitored file system usage

Configured F5; added pool members, virtual servers

Submitted/implemented CALT tickets in IMPL and PROD

Coordinated daily action items meeting

Wrote and maintained technical documentation for project

Maintained an accurate record of all the tasks being performed by the team

Set up Pagerduty to reflect on-call schedule

Participated in Gluster to NFS cutover

Participated in DR environment set up

9-Solutions, Inc., Largo, MD April 2012 – March 2015

Linux Systems Administrator

9-Solutions provide reliable technology services to our valuable clientele.

Installation, configuration and maintenance of Red Hat Linux servers

Managed system processes and scheduling processes with the cron utility

Checked alert logs, trace files and file system maintenance

Installed and maintained Linux and third-party software

Performed patching and various kinds of upgrade

Created mount point for DBA team and supporting various database implementations

Implemented ACL on Red Hat Linux servers

User management, creating and managing user account, groups and access levels

Monitoring system performance of virtual memory, Managing swap space, disk utilization and CPU utilization

Created, managed and troubleshot Red Hat LVM

Disk configuration and file systems management

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