System Engineer (Platform Infrastructure)

Vista; Cape Town; On-site; ZAR 600,000 - 1,000,000; Full time

Job summary

Vista in Cape Town is seeking a System Engineer (Platform Infrastructure) to maintain Vista Cloud and VMS security, availability and performance. You will build and monitor hosted cloud environments and drive continuous improvement of security posture.

The role emphasizes operational support, security operations management, and coordinating with global teams to ensure high-quality security outcomes for Vista’s services.

Qualifications

• BSc/BA or equivalent in IT/business is preferred.
• Strong server admin experience and infrastructure knowledge.
• Understanding of Active Directory, DNS, DHCP, and domains.
• Experience with security best practices and regulatory compliance.
• Familiarity with DevOps, IaC pipelines, and deployment processes.

Responsibilities

• Understand current scales of containers, VM scales, VMs, DB pools and app services, resizing as needed.
• Monitor and scale environments weekly and manage unused assets and IaC templates.
• Lead security incident response and feed findings back into system design.
• Provide security guidance and technical support for Vista Cloud staff and stakeholders.
• Train internal teams and act as escalation point for security events.
• Review work quality with the Head of Cloud Operations and other managers.

Skills

Server administration

AD & Networking

Security & compliance

DevOps / IaC

Incident response

Education

Relevant tertiary degree (business or technology) preferred

Tools

Azure/AWS Certification

Job description

Our System Engineers (Platform Infrastructure) ensure that the Vista Cloud and VMS offering maintains the highest levels of service, security and availability for our customers. Utilizing internal systems to build, monitor, and alleviate issues in our hosted cloud environments, you will ensure seamless operational and security efficiencies, helping to establish a mature and effective security posture across Vista’s services.

About the role

Operational Support

• Understand current scales of Containers, VM Scale Sets, VMs, DB Pools, App Services and DB’s – resizing and re-scaling as necessary
• Delete unused assets (e.g. Web & Call Centre Base Images) and alter IaC templates to make such assets optionally configurable
• Continue the weekly scaling of environments as necessary
• Monitor and manage orphaned Azure resources

Service and Security Operations Management

• Shape and implement systems, processes, and methodologies to ensure effective and timely monitoring of Vista’s services
• Take ownership of, and lead the response to, suspected and confirmed security incidents – feed all findings back into system design as a cycle of continuous improvement
• Proactively assist in the delivery of high-quality security outcomes for Vista’s global operations, including conducting regular reviews of our security posture

Product and Technical Support

• Remain current on all aspects of Vista Cloud technology, deployment, and operational processes
• Train internal support teams and act as the escalation point for queries related to security events, providing a resolution path for issues, whether hands‑on assistance or simply direction on how to approach issue resolution
• Provide technical advice and assistance for staff across Vista on security incidents as needed
• Conduct regular reviews of work quality and throughput with the Head of Cloud Operations and other Managers (NZ and overseas), and drill down into the analysis of any problems where required to ensure consistency of approach and that standards are being maintained
• Provide advice to the Development Team on possible security remediations to software problems found by vulnerability tools
• Pro‑actively work on increasing security scores and manage internal systems regarding security state / posture and maturity

Additional Responsibilities

• Assist the Project Management Office (PMO) with Statement of Work (SoW) scoping and technical reviews and provide security advice to implementation teams
• Utilize appropriate tools to log requests with the services team
• Create material for monthly reports regarding Security state/ posture and maturity

About you

• Relevant tertiary degree in business or technology (preferred)
• Azure or AWS Certification
• Strong Server Administrator Experience MCSE / MCSA
• Strong understanding of Active Directory, Domains, DNS, DHCP
• Strong understating of IP / networking and enterprise architecture
• Strong understanding of firewalling, Security, and compliance related elements
• Knowledge of DevOps / Repo, deployment pipelines, and approval processes for IaC (infrastructure as code)
• Willingness to learn and grow within the IaC and security space
• Understanding of compliance requirements