System Engineer (Nutanix and Red Hat)

Assurity Trusted Solutions Pte Ltd; Singapore; On-site; SGD 90,000 - 130,000; Full time

Benefits offered by this job

Learning budget

Certification sponsorships

Family care leave

Job summary

Assurity Trusted Solutions Pte Ltd in Singapore is seeking a System Engineer focused on Day 2 Operations to maintain and optimize our enterprise hybrid infrastructure. You will ensure the stability of Nutanix HCI clusters and Red Hat Enterprise Linux platforms, with a strong emphasis on automation and security.

The role requires hands-on experience with Nutanix AHV/ESXi, Prism Central, and Ansible, and involves on-call responsibilities to support high‑severity incidents in a regulated

Qualifications

• 3–5 years in enterprise systems engineering with Day 2 production ops.
• Deep expertise in Nutanix environments and Red Hat Enterprise Linux administration.
• Experience with Ansible for automation and patching workflows.
• Familiarity with Kubernetes/OpenShift and on-call rotations.

Responsibilities

• Day 2 Operations & Lifecycle Management: Own monitoring, health-checking, performance tuning, and capacity management of Nutanix HCI clusters and RHEL environments.
• Patching & Compliance: Manage routine and emergency patching, kernel upgrades, and firmware updates across Nutanix blocks and RHEL estates per security baselines.
• Infrastructure Automation: Write and maintain Ansible playbooks and Bash scripts to automate tasks and drift management.
• Incident & Problem Management: Serve as escalation point for complex incidents, perform root cause analysis (RCA) and implement fixes.
• Backup & Disaster Recovery: Manage, validate, and test DR procedures and backup replication across production nodes.
• Collaboration: Work with developers, security operators, and infrastructure architects to ensure stability.

Skills

Day 2 operations

RHEL administration

Ansible automation

On-call readiness

Tools

Nutanix AHV/ESXi

Prism Central

Prometheus/Grafana

Ansible

Job description

Assurity Trusted Solutions is a wholly-owned subsidiary of GovTech, providing infrastructure, operational, governance, assurance, and cybersecurity services that support government and commercial organizations. Working at the intersection of technology, reliability, and security, the team helps build and operate platforms that enable critical services to run effectively and securely.

As a System Engineer dedicated to Day 2 Operations, you will focus on maintaining, optimizing, and ensuring the absolute stability of our enterprise hybrid infrastructure. This role is well suited to someone who excels at the "post-deployment" lifecycle—keeping business-critical Nutanix hyperconverged infrastructure (HCI) systems and Red Hat Enterprise Linux (RHEL) platforms secure, performant, resilient, and continuously automated.

Responsibilities

• Day 2 Operations & Lifecycle Management: Own the monitoring, proactive health-checking, performance tuning, and capacity management of enterprise Nutanix HCI clusters (AOS/AHV) and RHEL environments.
• Patching & Compliance: Manage routine and emergency patching, kernel upgrades, and firmware updates across Nutanix blocks and RHEL estates while adhering strictly to government security baselines and minimizing system downtime.
• Infrastructure Automation: Write and maintain Ansible playbooks and Bash scripts to automate repetitive system administration tasks, configurations, and configuration drift management.
• Incident & Problem Management: Serve as the technical escalation point for complex infrastructure incidents, conducting deep-dive root cause analysis (RCA) and implementing permanent fixes.
• Backup & Disaster Recovery: Regularly manage, validate, and test disaster recovery (DR) procedures and backup replication policies across our production nodes.
• Collaboration: Work closely with application developers, security operators, and infrastructure architects to ensure platform changes cleanly align with Day 2 operational stability.

Requirements

• 3-5 years of hands-on experience in enterprise systems engineering, with a heavy emphasis on production infrastructure operations (Day 2 support).
• Strong competency managing Nutanix environments, including Nutanix AHV/ESXi, Prism Central, and lifecycle management (LCM).
• Deep expertise in Red Hat Enterprise Linux (RHEL) administration, covering storage management (LVM), performance tuning, security hardening, and OS troubleshooting.
• Hands-on experience with Ansible for system automation, configuration management, and patching workflows.
• Solid understanding of core enterprise infrastructure concepts: networking (VLANs, routing), storage protocols, and security principles.
• Familiarity with enterprise monitoring pipelines (e.g., Nutanix Pulse, Prometheus/Grafana, or Syslog).
• Nutanix Certified Professional (NCP) or Red Hat Certified System Administrator / Engineer (RHCSA / RHCE).
• Experience operating infrastructure within a highly regulated environment or Singapore public sector context.
• Basic exposure to container platforms like Red Hat OpenShift or vanilla Kubernetes.
• Willingness to participate in a scheduled on-call rotation for high‑severity production incident resolution.

Benefits

• We promote a learning culture and encourage you to grow and learn with training budgets and certification sponsorships.
• Annual Leave Benefits with additional perks such as Family Care and Birthday Leave.
• Contract Staff enjoys the same comprehensive benefits as Permanent Employees.