The Company

Dexcom Corporation (NASDAQ DXCM) is a pioneer and global leader in continuous glucose monitoring (CGM). Dexcom began as a small company with a big dream: To forever change how diabetes is managed. To unlock information and insights that drive better health outcomes. Here we are 25 years later, having pioneered an industry. And we're just getting started. We are broadening our vision beyond diabetes to empower people to take control of health. That means personalized, actionable insights aimed at solving important health challenges. To continue what we've started: Improving human health.

We are driven by thousands of ambitious, passionate people worldwide who are willing to fight like warriors to earn the trust of our customers by listening, serving with integrity, thinking big, and being dependable. We've already changed millions of lives and we're ready to change millions more. Our future ambition is to become a leading consumer health technology company while continuing to develop solutions for serious health conditions. We'll get there by constantly reinventing unique biosensing-technology experiences. Though we've come a long way from our small company days, our dreams are bigger than ever. The opportunity to improve health on a global scale stands before us.

Meet the team:

Our Global Shop Floor Systems group is an enterprise team that develops and applies our digital strategy to Dexcom’s manufacturing operations. We work with leading edge hardware and software technologies to seamlessly integrate our shop floor systems within the organization 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 existing Dexcom network security posture, implementation of new network security tools and monitoring for the OT network and firewall rules and policies audit.

Where you come in:

You will design, plan and implement security improvement capabilities for LAN/WAN.
You will establish standards and best practices for LAN/WAN/Wireless/Firewall including networked manufacturing and building automation systems.
You will assess, audit, design, document, and manage firewall zone, policies, and rules.
You will undertake routine preventative measures and implement, maintain, and monitor network security.
You improve network segmentation and implementation of zero trust security model.
You will implement and manage Network Access Control (NAC) solution.
You will implement and manage network security projects, hardware, and security applications such as Netskope, etc.
You will work closely with regional and local IT team and customers.
You will ensure network compliance and effectiveness according to IT/OT network policies, standards, and guideline.
You will establish new standards/guidelines related to network and firewall security.
You will respond to and, when appropriate, resolve or escalate security incidents.
You will develop and maintain documentation for network security and procedures.

What makes you successful:

Bachelor’s Degree (Computer Science, Information Systems) or equivalent applicable experience.

Minimum 5 years working experience in related field. Preferably in a manufacturing environment.

Hand on experience in L2/L3 networking and architecture for LAN/WAN (Cisco/Extreme/enterprise switches), Wireless (Meraki/Extreme) and Firewall (Palo Alto).

Familiar with NAC, VLAN management, IP address management, routing management and subnetting.

Strong knowledge in network security and implementation of security practices which adhere to IT/OT security policy, compliance, audit, and standards.

Knowledge in Splunk.
Network and firewall professional certification such as CCNA, CCNP, PCNSA, PCNSE, etc.

What you’ll get:

A front row seat to life changing CGM technology. Learn about our brave #dexcomwarriors community.
A full and comprehensive benefits program.
Growth opportunities on a global scale.
Access to career development through in-house learning programs and/or qualified tuition reimbursement.
An exciting and innovative, industry-leading organization committed to our employees, customers, and the communities we serve.

Travel Required:

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 to 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.

Sr Cybersecurity Engineer (Network & Systems)

Benefits

Job Description