Maintain and optimize Nutanix HCI clusters and RHEL platforms for Day 2 operations: monitoring, patching, automation (Ansible/Bash), incident RCA, DR testing, capacity tuning, and collaboration with developers and security teams to ensure secure, stable enterprise infrastructure.
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.
Assurity Trusted Solutions Pte Ltd Singapore, Singapore, SGP Office
Singapore, Singapore
Similar Jobs
Automotive • Professional Services • Software • Consulting • Energy • Chemical • Renewable Energy
Manage privacy operations including data subject rights (DSR) intake and responses, PIAs/DPIAs, RoPA/data inventories, vendor privacy reviews, privacy tooling, metrics, and incident support to maintain global privacy program compliance.
Top Skills:
OnetrustTrustarc
Automotive • Professional Services • Software • Consulting • Energy • Chemical • Renewable Energy
Perform structural FEA using commercial CAE tools to evaluate static, dynamic, thermal, and fatigue behavior. Build models, apply materials/boundary conditions, run simulations (including explicit dynamics), validate with hand calculations and test correlation, support root-cause failure analysis, and produce technical reports while collaborating with design, test, and manufacturing teams.
Top Skills:
AbaqusAnsys Mechanical/WorkbenchCatiaDesign Of Experiments (Doe)FeaFinite Element MethodHypermeshLs-DynaPythonSolidworksVb
Automotive • Professional Services • Software • Consulting • Energy • Chemical • Renewable Energy
Perform CFD and thermal simulations for electronics cooling at component, board, enclosure, and subsystem levels. Set up models, run steady-state and transient analyses, post-process results, correlate with test data, support V&V and certification needs, and document findings. Learn mesh strategy, solver settings, and collaborate with cross-functional teams under senior engineer guidance.
Top Skills:
Ai-Assisted Simulation WorkflowsAnsys FluentAnsys IcepakCfdComsolData AcquisitionFloefdFlothermScriptingStar-Ccm+Thermal Simulation
What you need to know about the Singapore Tech Scene
The digital revolution has driven a constant demand for tech professionals across industries like software development, data analytics and cybersecurity. In Singapore, one of the largest cities in Southeast Asia, the demand for tech talent is so high that the government continues to invest millions into programs designed to develop a talent pipeline directly from universities while also scaling efforts in pre-employment training and mid-career upskilling to expand and elevate its workforce.
