Motorcycle riding
Heath Coleman
Devops Engineer / SRE
Cape Town
Summary
Critical thinking DevOps Engineer with extensive understanding of high availability architecture and concepts. Purpose-driven professional with capacity to be strong team player plus work effectively independently.
Overview
2025
2025
years of professional experience
1
1
year of post-secondary education
Work History
DevOps Engineer
Kyte
CAPE TOWN
4 2024 - Current
- Working in the Low cost airline booking space
- Rewrote Django CMS and upgraded to to latest version
- Maintain and improve kubernetes system
- Improve monitoring with Grafan/loki/fluentbik and prometheus
- Dashboard and report creation
- Maintain gitlab pipelines
- Incident investigation and mitigation
Lead Devops Engineer
PayJustNow
10.2021 - 04.2024
- Managed and implemented the move from GCP GKS cluster to AWS fargate and Aurora serverless environment
- Implement and maintain ci/cd solution in AWS codepipe and codebuild
- Implement and manage IAC in cdk using typescript
- Implement and manage serverless infrastructure (Lambda, Dynamodb, qldb, appsync, Api gateway, neptune serverless, S3, datasync, AWS backups)
- Implement and manage ci/cd pipelines of all mobiles and manage publishing to various stores (Google, Apple and Huawei - Android)
- Develop solutions in typescript and Python to enhance or perform business processes
- Implement and manage SSO solution for company wide VPN and aws account integration and management
- Directly involved with PCI Level 2 and Level 1 audits and certifications
- Create / advise on policies and implement systems to enforce and manage those policies
- Monthly security audits and PCI audits
- Advise on system architecture, maintain and action all production deployments including planning and rollback strategies
- Manage and maintain Bare metal server hosting the various group websites
- Manage Company wide DNS and Cloudflare services and WAFs
Senior Devops Engineer
Blackswan
09.2017 - 08.2021
- Heading up the devops team in the aviation part of the company, managing a team of 3 devops engineers over various projects, incorporating many technologies over many platforms
- Working daily on AWS, Azure, GCP using kubernetes, terraform, Helm, chef, docker and ansible
- Large amounts of scripting and development with python, bash and occasionally go
- Monitoring systems with prometheus, grafana and cloudwatch, with centralised logging and alert with ELK
- CI pipelines in jenkins and SCM with bitbucket and git
- Airside systems built and managed with Qemu/KVM, virtualbox and docker
- Retrenched
Devops Engineer
WiGroup international
03.2017 - 09.2017
- Working in a 3 man team of devops engineers, we maintain and provision the various retails systems for clients using ansible, cloudformation and python/bash scripts
- CI is done using GOCD and jenkins and environments are all integrated with jenkins
- Setup Security monitoring and best practises with Whatsup that is centrally maintained
- Log monitoring was centralised with ELK
- Introduced Docker containers with integration into netbeans for Dev environments
- Bespoke reporting for clients with Mysql, Python scripts to email clients daily and monthly reports
- All systems Java / Wildfly / Glassfish
- Left to pursue a career in the aviation industry
Devops Engineer (Contract)
24.com
09.2016 - 03.2017
- Migration of websites from physical servers to AWS, using Chef, Docker and jenkins
- Setup of their continuous integration from Dev to live, using bitbucket and jenkins
- Setup and maintain auto scaling configurations to provide high availability on over 86 websites
- Dockerize Development environments to speed up development
- Scripting of various components using Bash/Python/powershell used in the various automation and deployment processes
- Recommend branching strategie on git based on best practises and ease of integration into CI process
- Centralised logging with ELK stack and monitoring with new relic / Datadog and cloud watch
- Configure and optimize caching of websites with Varnish, Memcached, redis and cloudfront CDN
- Optimize configuration of Nginx / Php-fpm, base os (ubuntu) and apache for high concurrency
Senior Devops Engineer
Zoona
10.2014 - 09.2016
- Design, implement and maintain large scale high traffic redundant networks and servers utilizing Rackspace Rack Connect technologies
- Design and implement Chef server provisioning and migrate all servers to the cloud
- Implemented Continuous integration using Jenkins / Gitlab / Nexus / Bower and Grunt
- Development of internal scripts ussd by the operation and dev teams using mostly bash and python
- Automate alignment of dev environments with production environments
- Implemented system wide monitoring using Zenoss / ELK and Datadog
- Redesigned the network topology for stability and redundancy
- Management and maintenance of MSSQL and MYSQL databases
- Day to day maintenance of infrastructure both internally and externally
- Consult with third party providers, as well as consult with management and development teams on system design and architecture
- Unhappy in environment
Senior Devops Engineer
Indaba Mobile
04.2011 - 10.2014
- Design, implement and maintain large scale, high traffic, Redundant clustered networks and backend servers using various technologies mostly based on open source technologies (200+ Virtualized servers using Vmware ESXI 5, Amazon AWS and Open VZ Servers)
- Installing, configuring and maintaining software such as Linux (Debian/Redhat based), Ejabberd, ActiveMQ, Cassandra, Memcached, PHP, Zendserver, Java, Tomcat, Glassfish, Mysql Server, Percona XtraDB Clusters
- Install and maintain the Various FortiGate (621b) Firewalls as well as configure and maintain the Various load Balancers
- Install and Maintain all internal Monitoring Systems used (Zenoss, cacti and nagios) as well as configure and maintain Public DNS servers and company mail servers and maintain 3rd party servers and services (foneworx USSD)
- Research and Development of new technologies and interfaces into other social media feeds (facebook, twitter, google+)
- Assist Design team with new code and implementing new technologies (Java, Php, Gambas) as well as agile testing on apps and deployments
- Design and Implement auto deployment and maintenance scripts (Bash / Perl / PHP)
- Mysql Databases administration and maintenance as well query, table and script design
- Configuration and Administration of Backup exec Servers and Tape Libraries and various other Windows 2008 Servers as well as all network switches
- Backend application development in Java, Tomcat and PHP
- Design and create Live reports in Tableau Software
- Work with developers on new systems architecture
- Maintain and improve Continuous integration system developed with Maven and Gradle
- Career embetterment
Network Engineer
Strategy Group
02.2010 - 09.2010
- Installation and maintenance of various networking And server equipment, SBS 2008, Exchange 2007/2010, Server 2008, Ipcop firewalls, clearos firewalls, Juniper Routers, Cisco routers and switches, Hp servers and procurve switches, IBM servers
- Installation and upgrading of Accpac, pastel 2009/2010, Spectrum payroll, vip payroll, Sophos antivirus, AVG, Arcserv, Symantec backup exec
- As Well as Maintenance and support of clients desktop and laptop machines at various sites (between 5 – 150) users
- Career embetterment and move to Cape town
Systems Administrator
Fruit and Veg city
11.2009 - 02.2010
- Maintain the core network, upgrading and Commissioning of Quantum VOIP technology, Installing and commissioning of fortigate firewall Solution, update disaster recovery plans, upgrade And install new servers at branches
- Upgrade and Stabilise wireless links to warehouses
- EOC
IT Manager
SymoCorp
04.2008 - 09.2009
- Maintain the core the network, upgrading and Commissioning of Quantum VOIP technology, Installing and commissioning of fortigate firewall Solution, update disaster recovery plans, upgrade And install new servers at branches
- Upgrade and Stabilise wireless links to warehouse
- Installing, maintaining and supporting of +-40 Machines, 6 Servers, Ericsson Telephone system and all software
- Server software included SBS 2003, Server 2003, Cent O/S, Smoothwall Firewall, Windows XP pro, office 2003 and 2007
- Installing and supporting Pastel and Omnix Accounting system supporting and maintaining of online Clocking system supporting all remote users and AutoCAD users (approximately 60 users)
- Project managing new IT related projects Tying new extensions into the PABX system
- Routine maintenance and backups of all servers monitoring of all user activity on Network, Email and Internet ensuring all Software was legally licensed
- Supporting, maintaining and reporting of VIP payroll package, maintaining and designing website as well as development of online store (PHP, MYSQL) including agile testing of all components and sign off remote Administration of Hosted web server (Cent O/S)
- Job embetterment and move to Cape Town
Systems Administrator
HAC Computers
11.2006 - 04.2008
- Onsite support and installation of server (SBS 2003, SME server)
- Upgrading machines
- Consulting on customer requirements
- Web development and testing of dynamic websites
- Installing and maintaining networks both LAN and Wan based (wired and wireless)
- Telephonic support and remote support consulting for previous employers
- Downturn in economy
SAP Consultant
Connect Vision
01.2006 - 12.2006
- I-Bolt Development General SAP Maintenance / SAP installations
- SQL 2000/2005 installations and maintenance, backup policies and recovery policies
- Visual basic.net, ASP, WEB development
- SQL Stored procedures, SQL statements, reports Development, testing of various components for compatibility
- Consulting customers on server and network requirements
- Installing and maintaining Internal network/server (both MS and LINUX) and installation / maintenance of wireless network
- Remote support of client base
- Unhappy in working environment
Technical Consultant
Welcomp Computers
01.2003 - 12.2006
- Onsite installation and repairing of PCs, servers, notebooks, printers ETC
- Installing of LAN and WAN networks, wired and wireless
- Selling of Hardware, software and Internet services
- Telephonic support to client base
- Server Installations with internet access and mail server configuration, Firewalls, Application servers, File servers in MS server based products and Linux based products (SBS 2003, SME server, Smoothwall)
- Internal and long range wireless networks (Netgear, Senoa)
- Data recovery
- Career embetterment
Web Developer
Fusion Reactor
01.2002 - 12.2003
- Onsite installation and repairs of PCs, servers
- Maintaining and developing of online web applications
- Database Development and maintenance of SQL database also development in Coldfusion, Visual Basic, ASP, VBSCRIPT and SQL stored procedures
- Defining test procedures for dynamic websites
- Maintaining web servers and installation of web server, also maintenance of Linux mail servers (Server 2000, RedHat and Fedora core 2)
- Installation of Linux Servers (Mail, Web and File)
- Telephonic support to client base
- Developed online Forex trading system, that was featured in the financial mail
- Move back to sister company (Welcomp)
Web Developer
Qualsa Healthcare
01.2001 - 12.2002
- In-house maintenance and development of online web application
- Database Development and maintenance of SQL database also development in Visual Basic, ASP, VBSCRIPT and SQL stored procedures
- Defining test procedures for various components
- Developed Automated fax authorization program that ran every night
- Worked with a team on a aids management program that won an industry award
- Retrenched
Senior Technician
Welcomp Computers
01.1997 - 12.2001
- Onsite repairs, installations of PC’s, notebooks, servers, Internet connections, RAS Connections, Printers (also general servicing)
- Consult on customer requirements and implementation
- Wap, HTML, VBSCRIPT, ASP and Visual basic Programming
- Database design in MS Access
- Software installations of most of the major packages (ex
- Windows 95 / 98 / NT4 / 2000, NT4 server, 2000 Server, Office Packages)
- Basic Linux support (Redhat Linux, Slackware)
- Career embetterment
Education
High School Diploma -
Sasolburg High School
Sasolburg 01.1995 - 11.1995
Skills
Linux operating system
Scripting languages
Infrastructure automation
Containerization technologies
Monitoring and logging
Security best practices
Microservices architecture
Continuous deployment
Amazon web services
Source and version control: git, github
Continuous integration systems
Interests
Charitys
Electronics
Music
Reading
Timeline
Lead Devops Engineer
PayJustNow
10.2021 - 04.2024
Senior Devops Engineer
Blackswan
09.2017 - 08.2021
Devops Engineer
WiGroup international
03.2017 - 09.2017
Devops Engineer (Contract)
24.com
09.2016 - 03.2017
Senior Devops Engineer
Zoona
10.2014 - 09.2016
Senior Devops Engineer
Indaba Mobile
04.2011 - 10.2014
Network Engineer
Strategy Group
02.2010 - 09.2010
Systems Administrator
Fruit and Veg city
11.2009 - 02.2010
IT Manager
SymoCorp
04.2008 - 09.2009
Systems Administrator
HAC Computers
11.2006 - 04.2008
SAP Consultant
Connect Vision
01.2006 - 12.2006
Technical Consultant
Welcomp Computers
01.2003 - 12.2006
Web Developer
Fusion Reactor
01.2002 - 12.2003
Web Developer
Qualsa Healthcare
01.2001 - 12.2002
Senior Technician
Welcomp Computers
01.1997 - 12.2001
High School Diploma -
Sasolburg High School
01.1995 - 11.1995
DevOps Engineer
Kyte
4 2024 - Current
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