Network Security Engineer

-; Kuala Lumpur; On-site; MYR 80,000 - 110,000; Full time

Job summary

A leading energy and chemical company in Kuala Lumpur is seeking a Network Security Engineer to design and manage security posture in line with corporate standards. The role involves operating key technologies such as firewalls and IDS, while applying DevOps principles for automation. Candidates should have at least 3 years of network security experience and a relevant degree. Excellent communication skills and a proactive attitude are essential. Join us to enhance security across global IT services.

Benefits

Competitive benefits

Qualifications

• Minimum 3 years of hands-on experience in network security.
• Experience with network security platforms including Cisco ASA, FortiGate, and Juniper SRX.
• Deep knowledge of TCP/IP and Internet technologies.

Responsibilities

• Design, implement, and manage network security technologies across different environments.
• Operate and maintain network security appliances such as firewalls and IDS/IPS.
• Support security operations including monitoring and incident response.

Skills

Network security experience

Understanding of networking fundamentals

Problem-solving skills

Strong verbal and written communication in English

Education

Bachelor's degree in Computer Science, Engineering, or IT

Tools

Cisco ASA

FortiGate

Juniper SRX

Job description

About us

At ExxonMobil, our vision is to lead in energy innovations that advance modern living and a net‑zero future. As one of the world's largest publicly traded energy and chemical companies, we are powered by a unique and diverse workforce fueled by the pride in what we do and what we stand for. The success of our Upstream, Product Solutions and Low Carbon Solutions businesses is the result of the talent, curiosity and drive of our people. They bring solutions every day to optimize our strategy in energy, chemicals, lubricants and lower‑emissions technologies.

We invite you to bring your ideas to ExxonMobil to help create sustainable solutions that improve quality of life and meet society's evolving needs. Learn more about our What and our Why and how we can work together.

ExxonMobil in Malaysia

ExxonMobil is one of the world's largest publicly traded energy providers and chemical manufacturers. It develops and applies next‑generation technologies to help safely and responsibly meet the world's growing needs for energy and high‑quality chemical products. In Malaysia, we are involved in significant oil and gas production operations and the marketing of chemical products. We also host a global business and technology center in Kuala Lumpur that provides high‑level information technology and engineering expertise to ExxonMobil's upstream, downstream and chemical businesses worldwide.

What role you will play in the team

As a Network Security Engineer, you will play a critical role in designing, engineering, and managing the enterprise network security posture. You will ensure that the network infrastructure aligns with corporate security policies and standards, protecting against evolving cyber threats. This role involves operating and maintaining key security technologies — such as firewalls, IDS/IPS, and other advanced controls — while applying DevOps principles to drive automation, scalability, and resilience. You will collaborate closely with network, infrastructure, application, and cybersecurity teams to support and enhance ExxonMobil's global IT services.

What you will do

• Design, implement, and manage network security technologies and services across regions and different infrastructure environments (data centers, offices, edge).
• Research and recommend industry best practices and emerging technologies in network security.
• Operate and maintain network security appliances (Fortinet, Cisco, Juniper), including upgrades and patching.
• Build and manage network security infrastructure using DevOps practices and automation tools.
• Contribute to the Zero‑Ops infrastructure management vision by developing solutions that reduce manual intervention and improve operational efficiency.
• Support security operations: monitoring, analysis, incident response, and vulnerability management.
• Evaluate security advisories and vulnerabilities, providing timely recommendations and mitigations.
• Participate in ad‑hoc vulnerability assessments and incident response.
• Coordinate with stakeholders across Cybersecurity, Projects, and internal customers.
• Develop and maintain operational processes and documentation for ongoing support.

About you

Skills and Qualifications

• Minimum 3 years of hands‑on experience in network security.
• Experience with network security platforms: Cisco ASA (CSM), FTD (FMC), FortiGate (FortiManager), Juniper SRX (Junos Space).
• Strong understanding of networking fundamentals: TCP/IP, OSI model, routing/switching, ACLs.
• Familiarity with security technologies: firewalls, VPNs, IDS/IPS, encryption, authentication, vulnerability management, and incident response.
• Bachelor's degree or higher in Computer Science, Computer Engineering, or IT‑related fields.

Technical Skills

• Deep knowledge of TCP/IP, Internet technologies, IPS/IDS, firewall virtualization, VPNs, NAT, DNS, etc.
• Relevant certifications (preferred but not required): Cisco (CCNA/CCNP Security), Fortinet (FCA/FCSS/NSE), CISSP, GIAC.

Automation & DevOps

• Strong advantage: experience with GitHub, Terraform, Ansible, Python, REST API, Jenkins, Jinja2, YAML.
• Familiarity with CI/CD concepts and tools is a plus.

Cloud

• Experience with AWS and Azure network security services.

Preferred Qualifications

• Excellent verbal and written communication in English.
• Mindset to grow and learn.
• Self‑motivated, proactive, and able to work independently in a global virtual team.
• Strong multitasking and prioritization abilities.
• Analytical mindset and a collaborative team player.

Your Benefits

We are committed to providing benefits that are competitive and support the needs of our employees.

Application Process

Please be informed that only shortlisted candidates will be notified, and you can find out more about our hiring process here.

For more information about business solicitation and recruiting scams, please click here.

We thank you for your interest in ExxonMobil.

Equal Opportunity Employer

ExxonMobil is an Equal Opportunity Employer. All qualified applicants will be duly considered for employment.

Winner of Malaysia's 100 Leading Graduate Employers Award in the Energy/Oil and Gas/Utilities category

Nothing herein is intended to override the corporate separateness of local entities. Working relationships discussed herein do not necessarily represent a reporting connection, but may reflect a functional guidance, stewardship, or service relationship.