Roland van Rooyen

Business Skills

• Gather and review business requirements.

• Architect, engineer and design solutions using modern application development design with CI/CD pipelines and ATF (Automated Testing).

• Assess and select optimal cloud platform and services for solutions.

• Implement solutions using advanced iterative methodologies - Agile and Safe.

• Participate in scrum teams to ensure progress is on track, designs are being followed and to create stories.

• Support development teams on CI/CD methods, serverless methodologies, pipelines, and code optimization.

Summary: I lead projects from the originating business ask, through completion and handover into production, continuing support and future enhancements.

Relevant Skills

• Overall knowledge of business, accounting and costing.

• Deep programming skills:

• Java; C/C++; Oracle; NoSQL DBMS; Object Oriented Development; Unix/Linux; Scripting; HTML5/CSS3; RWD frameworks; ServiceNow (Current on Certification); JavaScript; React; Node; Python.

• In-depth knowledge of cloud services and which methodologies to use for each new solution, Azure, AWS, GCP.

• Understanding of modern applications such as logic apps, functions, docker, Kubernetes and how to write code for these environments.

• CI/CD pipelines, orchestration, automation, and testing.

• Integration/API using SOAP, REST specifically when data exists in legacy applications.

Delivered

• Delivered integrations and solutions saving > 6 million per annum in 2022.

• Built an effective, strong backend team that now develops and provides day 2 support for solutions.

• Modernized cloud applications, using severless and cloud platform technologies.

• Cut cloud spend ~50% and reduced code size by >50% per application modernized.

• Provided observability and event based systems allowing for proactive application monitoring and maintenance.

• Technical lead for, Cloud Storage (Commercial and Government, 3000+ customers)
• Roll out of Cloud Storage and Compute, running over 1 Exabyte of data in 20 data centers globally
• Design, implementation, go-live/ramp-up, and daily operational support of data centers
• Development of monitoring and tools for production support using Java,J2EE, SPLUNK, Automation Anywhere, Perl, Python, PHP and BASH scripting
• Engage with vendors in planning, maintenance and change control
• Product development - new products and services enabled and operationalized
• Technical SME for AT&T iDNS, global load balancing DNS service
• Maintained vendor relations with EMC/Dell, future planning/sizing issue resolution and product evolution.
• Reviewed specifications and technical manuals for compliance with ongoing operational goals and conformity to applicable regulations.

• Design, implementation and support of AT&T's CDN platform with datacenters worldwide.
• Design, implement and support of iDNS (global load balancing service) for related services.
• Authoring change control procedures for the various CDN related components.
• Training and support of 24X7 team for system support.
• Development of scripts and tools used in support of the system.

• Investigated system issues and implemented resolutions to reduce downtime.
• Developed technical solutions to diverse operational problems.

• Nationwide VPN design and support, Linux/Unix, SIP/VOIP, Firewall, Load Balancing, Caching SME.
• Managed implementation of new technological improvements resulting in increased efficiency.
• Reviewed daily requirements and forecasts and delegated work for optimal coverage.
• Monitored network performance and provided network performance statistical reports for both real-time and historical measurements.
• Directed and supervised team of 16 engaged in on-site support and solution development.
• Hired, trained and mentored staff to maximize effectiveness.