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Work experience

Aug 2014Present

Senior Linux Engineer

Intarget

As a Voice Services and Systems Engineer working for a IT and Telecom solutions company I'm responsible for the installation, configuration and support of voice systems (Kamailio and Asterisk) and other services running off Linux platforms. Our Voice platform is just starting, thus I spend 20% of my time helping developers VOIP UI while I do the asterisk dialplan and SIP proxying. Below are my day to day routines

  • Installation and configuration of Linux related services

  • Enriching our automation platform, trying to make deployment and HA as humanless as possible. We use puppet and Chef, chef is mainly for our cloud platforms

  • Documentation of configs, business continuity etc

  • Liaise with MTN africa for our aggregation platform support.

  • Security audits and reporting.

  • This position requires ingenuity to get the job done with help of Open Source and following industry standards.

  • Monitoring with Nagios

  • Database Management, Cassandra, Mongo and MariaDB

  • Open Source Contribution – currently working on a bacula project

  • My role also includes what used to do at Wesbank below.

Aug 2013Jul 2014

Senior Linux Engineer

WesBank

The job role includes, but not limited to clustering, load-balancing, virtualization and high-availability techniques. This role involves working in a cutting-edge Linux, VMware, and Open Source-heavy environment. Roughly 70% of the time will be spent on architecture, engineering and new builds with the remaining 30% spent on maintenance and support. Specific responsibilities include all typical duties of a Senior Engineer including, planning, builds, capacity-planning, scripting, automation, and backups. The position is also focus on change control procedures to plan/test/implement Infrastructure changes in coordination with business owners.

I also provide technical analysis and design consulting support for major business applications.

  •  Advanced Red Hat System Administration
  • Heavy use of scripting and automation tools
  •  Linux Clustering (Red Hat) and SAN usage
  • Enterprise backup agents (NetBackup, etc.)
  • Problem management
  • Project reporting
  • Customer communication
  • Rollout of applications and OS upgrades
  • Build and configuration of server hardware
  • Maintenance of the operating systems and hardware
  • Installation of configured server into a production server environment
  • Troubleshooting OS and hardware problems for local and remote servers.

Jan 2011Jun 2013

Senior Linux Administrator

Optisolutions (Vodacom)

Worked in HA environment, maintaining over 450 Redhat Linux servers SLA for a large telco company (Vodacom SA)

Was responsible for effective installation/configuration, operation and maintenance of systems hardware, software and related infrastructure

Participated in technical research and development to enable continuing innovation within the infrastructure

  • Service, maintain, commission and support global platforms, with a view towards high availability
  • Technical Liaison - managing technical relationships with VIP clients and vendors as needed

Performing technical liaison between Platforms team, operations co-ordinator, and internal organizations

  • Architecture and Provisioning Installation/rebuilding of servers, configuration of hardware, peripherals, services, etc. in accordance with standards and project/operational requirements;

Research and recommend innovative and automated approaches for system administration tasks

  • Operations and Support  Perform or confirm system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs

Investigate and troubleshoot issues, including logging of defects, performing preliminary root-cause analysis and identifying course of action

Repair and recover from hardware or software failures, including coordinating and communicating with impacted constituencies.

  • Maintenance Apply OS patches and upgrades on a regular basis, and upgrade administrative tools and utilities

Configure and/or add new services as necessary

Maintain operational, configuration and/or other procedures

  • Security

Contribute to and maintain system standards

Maintain data centre/server room environmental and monitoring equipment

Ensure secure operation of all servers and services through the use of security and encryption tools, staff training and documentation

  • Databases

Installation, configuration and maintainence of oracle DB infrastructure, RACs. (10g and 11g) Running Linux infrastructure

  • Vitualization

Supporting over 150 virtualized and clustered environments running on vmware esx. I'm also leading a team that is trying the Redhat Virtualization platform.

Education

20122016

BCom Business Informatics

University of South Africa

Business information systems

19992002

Diploma Network Engineering and Unix Systems

MacMaine School of Computing