Overview
Senior Cybersecurity Engineer (Network & Systems) at Dexcom. The Global Shop Floor Systems group develops and applies our digital strategy to manufacturing operations, integrating cutting-edge hardware and software to enable optimal operational and business performance. In this role, you will partner with both Malaysia and US IT Infrastructure Network teams to assess, improve, and strengthen the Dexcom network security posture, and implement new network security tools and monitoring for the OT network and firewall rules and policies audit.
Responsibilities
* Design, plan and implement security improvement capabilities for LAN/WAN.
* Establish standards and best practices for LAN/WAN/Wireless/Firewall including networked manufacturing and building automation systems.
* Assess, audit, design, document, and manage firewall zones, policies, and rules.
* Undertake routine preventative measures and implement, maintain, and monitor network security.
* Improve network segmentation and implement zero trust security model.
* Implement and manage Network Access Control (NAC) solution.
* Implement and manage network security projects, hardware, and security applications such as Netskope, etc.
* Collaborate with regional and local IT teams and customers.
* Ensure network compliance and effectiveness according to IT/OT network policies, standards, and guidelines.
* Establish new standards/guidelines related to network and firewall security.
* Respond to and, when appropriate, resolve or escalate security incidents.
* Develop and maintain documentation for network security and procedures.
What Makes You Successful
* Bachelor’s Degree (Computer Science, Information Systems) or equivalent experience.
* Minimum 5 years in related field; preferably in a manufacturing environment.
* Hands-on experience in L2/L3 networking and architecture for LAN/WAN (Cisco/Extreme/enterprise switches), Wireless (Meraki/Extreme), and Firewall (Palo Alto).
* Familiarity with NAC, VLAN management, IP address management, routing management and subnetting.
* Strong knowledge of network security and implementation of IT/OT security policy, compliance, audit, and standards.
* Knowledge in Splunk.
* Network and firewall professional certifications (e.g., CCNA, CCNP, PCNSA, PCNSE, etc.).
What You’ll Get
* Front-row exposure to life-changing CGM technology and the Dexcom community.
* Comprehensive benefits program.
* Global growth opportunities and access to career development through in-house learning programs and tuition reimbursement.
* An innovative, industry-leading organization committed to employees, customers, and communities we serve.
Travel
* 20% initially, reducing to 10% in 2026
To all Staffing and Recruiting Agencies: Our Careers Site is only for individuals seeking a job at Dexcom. Only authorized staffing and recruiting agencies may use this site or submit profiles, applications or resumes on specific requisitions. Dexcom does not accept unsolicited resumes or applications from agencies. Please do not forward resumes to the Talent Acquisition team, Dexcom employees or any other company location. Dexcom is not responsible for any fees related to unsolicited resumes/applications.
Seniority level: Not Applicable
Employment type: Full-time
Job function: Information Technology
Industries: Medical Equipment Manufacturing
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