Senior Systems Engineer

activpayroll Ltd.; Kuala Lumpur; On-site; MYR 80,000 - 100,000; Full time

Job summary

activpayroll Ltd. is looking for a Senior Systems Engineer in Kuala Lumpur, Malaysia. The role involves taking ownership of design and implementation for infrastructure, cloud, and security platforms. The ideal candidate has 5+ years in IT Infrastructure, hands-on experience with Microsoft security tools, and strong knowledge of network security practices. You will be expected to lead technical initiatives, monitor issues, and build relationships with partners, ensuring operational excellence and security compliance.

Qualifications

• 5+ years’ experience in a Senior IT Infrastructure or similar role.
• Strong understanding of network protocols, firewalls, and core security technologies.
• Proven capability in cloud security and risk mitigation.

Responsibilities

• Monitor and resolve server and network issues.
• Deploy and manage security tooling and conduct security audits.
• Support platform-related projects and act as a technical escalation.

Skills

Experience in IT Infrastructure

Hands-on experience with Microsoft Defender and Intune

Network protocols and firewalls understanding

Experience with Nutanix hyperconverged solutions

Cloud security and risk mitigation

Excellent communication skills

Problem-solving skills

Education

Degree in Computer Science or related discipline

Tools

Microsoft Defender

Microsoft Sentinel

Intune

Nutanix

Microsoft SQL

Job description

Senior Systems Engineer

Department: Technology

Employment Type: Permanent

Location: Kuala Lumpur, Malaysia

Reporting To: Head of Platform and Security Operations

Description

As we grow our global footprint, we are seeking a Senior Software Engineer to take ownership of the design, implementation, and support of our infrastructure, cloud, and networking platforms, with security as a core priority. The position will offer technical leadership and act as the primary escalation point for the Systems Engineers.

On a typical day, it looks like this...

• Monitor and resolve server and network issues to keep our systems performing at their best.
• Own patching, Group Policy, and core platform maintenance.
• Deploy and manage Microsoft Defender, Sentinel, and other security tooling.
• Analyse security alerts, investigate incidents, and drive continuous improvement.
• Run security audits, risk assessments, and help develop modern, practical security policies.
• Work with internal teams to deliver secure, compliant solutions across the business.
• Support platform‑related projects and act as a technical escalation for the Service Desk.
• Build strong relationships with external partners and guide Systems Engineers when required.

Does this sound like you?

Someone who thrives in a dynamic environment, enjoys solving complex problems, and brings a security‑first mindset. You’ll be proactive, collaborative, and comfortable balancing operational responsibilities with strategic improvements.

You’ll ideally have:

• 5+ years’ experience in a Senior IT Infrastructure or similar role.
• Hands‑on experience with Microsoft Defender, Intune, and at least 3 years with Microsoft Sentinel.
• Strong understanding of network protocols, firewalls, and core security technologies.
• Solid experience with Nutanix hyperconverged solutions and Microsoft SQL.
• A strong grasp of IT policy frameworks, risk management, and compliance best practices.
• Proven capability in cloud security and risk mitigation.
• Excellent communication, analysis, and problem‑solving skills.
• The ability to work independently, collaborate effectively, and support wider teams.
• A relevant degree in Computer Science, IT, or related discipline.
• Bonus: Microsoft security certifications such as SC‑200, SC‑300, SC‑400, SC‑900, or MAZ‑500.