Senior Engineer-Application Engineering

Job Description 

OVERVIEW

Job Title

Senior Engineer

Job Code

Grade

I2

Group

Government Products

Division

Technology

Department

IT Infrastructure

Unit

-

ROLE PURPOSE

The aim is to state the overall significance of the job from the organization’s perspective.

To ensure the availability, security, performance, and reliability of enterprise operating systems by managing Windows and Linux platforms, including installation, configuration, patching, troubleshooting, vulnerability remediation, automation, and lifecycle management, while maintaining compliance with security and operational standards.

KEY ACCOUNTABILITIES & ACTIVITIES

This section describes the principal outputs required from the job.

Key Accountabilities

Key Activities

1. Platform Build & Configuration

• Install, configure and harden Windows Server and Red Hat Enterprise Linux (RHEL) systems according to approved build standards.
• Deploy and maintain server images, templates and baseline configurations across physical, virtual and cloud environments.

2. Availability, Performance & Monitoring

• Monitor operating system health, capacity and performance, and act on alerts to prevent service disruption.
• Perform capacity planning, performance tuning and resource optimization for Windows and Linux servers.
• Maintain monitoring agents and thresholds in line with operational standards.

3. Incident, Problem & Change Management

• Act as an escalation point for complex operating system incidents; troubleshoot and restore service within agreed SLAs.
• Perform root cause analysis for recurring issues and implement permanent corrective actions.
• Plan, review and implement changes following the change management process, with rollback plans

4. Patch & Lifecycle Management

• Plan and execute scheduled patching and updates for Windows and RHEL servers, including testing and post-patch validation.
• Track operating system versions, support status and end-of-life dates, and plan upgrades and migrations.
• Manage decommissioning of servers in line with approved lifecycle procedures.

5. Vulnerability Remediation & Security Compliance

• Remediate vulnerabilities identified by scans and security advisories within defined SLAs.
• Apply security hardening baselines (e.g., CIS) and ensure compliance with organizational and regulatory controls.
• Support endpoint protection, privileged access and secure remote access requirements on managed servers.
• Provide evidence and support during internal and external audits.

6. Automation & Process Improvement

• Develop and maintain scripts and automation (e.g., PowerShell, Bash, Ansible) for provisioning, patching and routine operational tasks.
• Identify and implement improvements that reduce manual effort, errors and recurring incidents.
• Contribute to standardization of operating system configurations and operational procedures.

7. Vendor & Stakeholder Coordination

• Engage vendors (e.g., Red Hat, Microsoft) and service providers for support cases, escalations and technical advisories.
• Collaborate with infrastructure, cybersecurity, IAM, network and application teams to deliver and support services.
• Communicate status, risks and outcomes of operating system activities to the unit manager and stakeholders.

8. Policies, Processes & Procedures

• Follow all relevant departmental policies, processes, standard operating procedures, and instructions so that work is carried out in a controlled and consistent manner.
• Comply with all relevant safety, quality, and environmental management policies, procedures, and controls to ensure a healthy and safe work environment.

9. Information Security

• Comply with all relevant information security practices and standards to ensure data integrity and confidentiality.

JOB SPECIFICATIONS

Academic and professional qualifications

• Bachelor’s Degree in Information Technology, Computer Science, or a related discipline.

Years and Nature of Experience

•  2–4 years of relevant experience in enterprise operating systems administration and support, including hands-on experience with Windows Server and Red Hat Enterprise Linux (RHEL).
•  Experience in server provisioning, configuration, performance tuning, patching, vulnerability remediation, security hardening, and lifecycle management.
• Proven experience troubleshooting complex incidents, performing root cause analysis, and implementing changes within agreed service levels.
• Practical experience with PowerShell, Bash, or Ansible automation, virtualized or cloud environments, and technical documentation.
• Experience coordinating with infrastructure, cybersecurity, and application teams in production environments.