Network Security Engineer

Exxon Mobil; Kuala Lumpur; On-site; MYR 80,000 - 120,000; Full time

Job summary

A leading energy and chemical provider in Kuala Lumpur is seeking a Network Security Engineer to design and manage the enterprise network security posture. The successful candidate will ensure the network infrastructure aligns with corporate security policies while protecting against cyber threats. A strong understanding of networking fundamentals, firewalls, and hands-on experience in network security is essential. This role involves collaboration with various teams to enhance security measures and automation in processes.

Benefits

Competitive benefits package

Qualifications

• Minimum 3 years of hands-on experience in network security.
• Experience with network security appliances like Cisco ASA, FortiGate, and Juniper SRX.
• Strong understanding of networking fundamentals including TCP/IP and the OSI model.

Responsibilities

• Design, implement, and manage network security technologies.
• Research best practices and emerging technologies in network security.
• Support security operations including monitoring and incident response.

Skills

Network security experience

TCP/IP knowledge

Firewall management

Analytical mindset

Communication skills in English

Education

Bachelor’s degree in Computer Science or related fields

Tools

Cisco ASA

FortiGate

Juniper SRX

Job description

Please note: A system upgrade will occur from mid-March through early April, which may result in temporary delays in certain processes. For assistance, please reach out to your Recruiter by email.

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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, ExxonMobil 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.

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.

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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.

Exxon Mobil Corporation has numerous affiliates, many with names that include ExxonMobil, Exxon, Esso and Mobil. For convenience and simplicity, those terms and terms like corporation, company, our, we and its are sometimes used as abbreviated references to specific affiliates or affiliate groups. Abbreviated references describing global or regional operational organizations and global or regional business lines are also sometimes used for convenience and simplicity. Similarly, ExxonMobil has business relationships with thousands of customers, suppliers, governments, and others. For convenience and simplicity, words like venture, joint venture, partnership, co-venturer, and partner are used to indicate business relationships involving common activities and interests, and those words may not indicate precise legal relationships.