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@clemuser

Application Support Team Lead at VAS-X, leading Tier-2/Tier-3 support and co-leading migrations from GlassFish and Payara to Kubernetes.

South Africa
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At VAS-X (Pty) Ltd, now part of Lumine Group, I lead a team of 4-6 engineers supporting business-critical recharge and provisioning platforms. I plan workload and rosters, coach engineers, and conduct performance reviews.

I own SLA compliance and reporting, and manage incidents from triage and escalation through service restoration, root-cause analysis, and corrective action. I also run customer service reviews and coordinate releases through testing and production deployments.

I co-led the migration of applications and legacy systems from Oracle GlassFish and Payara GlassFish to Docker and Kubernetes, owning testing, monitoring, and production cutover. I also co-lead vulnerability remediation and OS migration work with infrastructure, security, and customer teams.

Earlier, I managed the NOC for FTTX services at ZTE Corporation South Africa (Pty) Ltd and provided support for electronic toll collection systems at Kapsch TrafficCom South Africa (Pty) Ltd. Across my career, I've worked in production application support, incident management, and telecommunications operations.

Experience

Work history, roles, and key accomplishments

VL
Current

Operational and Support Engineer

VAS-X (Pty) Ltd

Dec 2020 - Present (5 years 10 months)

Leads a team of 4-6 engineers providing Tier-2/Tier-3 support for business-critical recharge and provisioning platforms. Owns SLA compliance, incident management, and release management end to end.

VL

Application Support Analyst

VAS-X (Pty) Ltd

Feb 2019 - Nov 2020 (1 year 9 months)

Provided production application support, diagnosing application errors with database queries and Bash scripts, escalating critical issues, and working with developers to improve system performance. Implemented system hardening and new monitoring for system-critical components.

ZL

NOC Manager and IT Managed Services

ZTE Corporation South Africa (Pty) Ltd

Jan 2017 - Jan 2019 (2 years)

Managed the NOC for FTTX services, defined and implemented NOC processes, handled escalations, and coordinated shift schedules and priorities against network KPIs. Provided 3rd-level technical support for M2M, BSS, and Fibre, and project-managed the GPON rollout across the Western and Eastern Cape.

Education

Degrees, certifications, and relevant coursework

The Linux Foundation logoTF

The Linux Foundation

Certified Kubernetes Administrator (CKA), Kubernetes

Planned to complete the Certified Kubernetes Administrator (CKA) exam in December 2026.

TI

Torque IT

Oracle Database Introduction to SQL (1Z0-061), Database

Completed Oracle Database Introduction to SQL certification in 2016.

APMG International logoAI

APMG International

ITIL Foundation Certificate in IT Service Management, IT Service Management

Earned the ITIL Foundation Certificate in IT Service Management in 2015.

BB

Blue Bridge

PC Support and Network Technician, IT Support

Completed PC Support and Network Technician training in 2012.

IN

Incusdata

Java Programming, Programming

Completed Java Programming training in 2011.

Udemy logoUD

Udemy

Online Courses, DevOps and Security

2019 - 2022

Completed online courses in Linux, MySQL, Docker for DevOps, Prometheus Monitoring, and Cyber Security between 2019 and 2022.

MikroTik logoMI

MikroTik

MikroTik Certified Network Training (MTCNT), Networking

Completed MikroTik Certified Network Training in 2010.

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