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Network Engineer II

CareDxBrisbane, Australia | California, United StatesOnsite

CareDx, Inc. is a leading precision medicine solutions company focused on the discovery, development, and commercialization of clinically differentiated, high-value healthcare solutions for transplant patients and caregivers. CareDx offers products, testing services, and digital healthcare solutions along the pre- and post-transplant patient journey, and is the leading provider of genomics-based information for transplant patients.
CareDx, Inc., is currently looking for a Network Engineer II. This position will report directly to our Infrastructure Manager. As a Network Engineer II at CareDx you’ll have a key position within our global IT infrastructure supporting our offices in North America, Europe and Australia. You will play a key role in maintaining, optimizing, and securing our global on-premise and cloud-based network infrastructure. You will ensure high availability and performance for a growing 24x7x365 laboratory operation while proactively contributing to the future direction of our network technologies.

This role goes beyond day-to-day network maintenance, allowing you to take ownership of critical projects, provide input into technology decisions, and influence the strategic roadmap for network evolution.

Key Responsibilities:


  • Ensure Network Resiliency & Performance: Oversee and support both on-premise and cloud network infrastructures, ensuring they meet performance, scalability, and resiliency needs in a dynamic environment
  • Proactive Network Maintenance: Implement, support, and monitor gateways, switches, firewalls, IPSec VPN tunnels, wireless access points, and IDS/IPS devices to ensure network stability, reliability, and compliance. Ensure a seamless network experience for 24/7 operations
  • Problem Resolution & Preventative Measures: Lead network traffic analysis across LAN/WAN/SD-WAN to diagnose and resolve issues, implementing preventative measures that minimize downtime and increase network efficiency
  • Technology Roadmap & Innovation: Actively contribute to decisions about network technology, providing insights into hardware and software improvements that align with business objectives. Research and evaluate emerging technologies to enhance security, performance, and resilience
  • Documentation & Compliance: Develop and maintain detailed documentation of network infrastructure, ensuring that all gateways, switches, firewalls, and other critical devices are properly accounted for. Establish and refine network security protocols, ensuring they meet compliance standards. Follow and proper documentation and understand Change Management process
  • Security Optimization: Continuously review and enhance internal network security practices. Develop and track key metrics to measure the effectiveness of the security program and address any vulnerabilities
  • Escalation & Critical Response: Serve as the primary escalation point for network-related issues, leading troubleshooting efforts during outages or incidents. Ensure effective communication during critical incidents to minimize downtime and service disruptions
  • Project Leadership & Ownership: Lead key network projects from planning through execution, influencing the technical roadmap and ensuring projects meet scalability, security, andperformance goals. Your expertise will help shape future network developments, driving innovation and continuous improvement
  • After-Hours Support: Provide after-hours and weekend support for critical network issues, ensuring minimal downtime for essential operations

Required Qualifications:


  • At least 5+ years of networking experience with expertise in server and desktop technologies
  • Proficiency with firewalls (Fortinet preferred), SD-WAN , wireless networking, and AAA services, Ubiquiti is a plus
  • In-depth knowledge of networking technologies including IPv4/IPv6, BGP, OSPF, VPN, L2 switching, VLANs, EtherChannel, and 802.1Q
  • Proven experience with cloud networking in environments like Azure, AWS, or others
  • Demonstrated expertise in high-availability and performance-driven networking environments
  • Experience with hybrid infrastructure (on-premise, private, and public cloud networking)
  • Familiarity with ticketing systems (e.g., ServiceNow, Atlassian)

Additional Details:


Every individual at CareDx has a direct impact on our collective mission to improve the lives of organ transplant patients worldwide. We believe in taking great care of our people, so they take even greater care of our patients.Our competitive Total Rewards package includes:

  • Competitive base salary and incentive compensation
  • Health and welfare benefits including a gym reimbursement program
  • 401(k) savings plan match
  • Employee Stock Purchase Plan
  • Pre-tax commuter benefits
  • And more!

In addition, we have a Living Donor Employee Recovery Policy that allows up to 30 days of paid leave annually to a full-time employee who makes the selfless act of donating an organ or bone marrow.With products that are making a difference in the lives of transplant patients today and a promising pipeline for the future, it’s an exciting time to be part of the CareDx team. Join us in partnering with transplant patients to transform our future together.

CareDx, Inc. is an Equal Opportunity Employer and participates in the E-Verify program.


By proceeding with our application and submitting your information, you acknowledge that you have read our 


U.S. Personnel Privacy Notice


and consent to receive email communication from CareDx.


For HR administration purposes, the job title is Equipment Engineer II.******** We do not accept resumes from headhunters, placement agencies, or other suppliers that have not signed a formal agreement with us.#LI-Remote

Life at CareDx

CareDx: Transforming Transplant Patient Care Through Novel Surveillance Management Solutions CareDx, Inc. is dedicated to improving the lives of organ transplant patients through non-invasive diagnostics. By combining the latest advances in genomics and bioinformatics technology, with a commitment to generating high quality clinical evidence through trials and registries, CareDx is at the forefront of organ transplant surveillance and pre-transplant HLA typing solutions. NASDAQ:CDNA About AlloSure® AlloSure is the first and only non-invasive blood test that directly measures allograft injury and identifies the probability of active rejection to better manage kidney transplant patients. AlloSure is a clinical-grade, proprietary Next-Generation Sequencing (NGS) based test to detect donor-derived cell-free DNA (dd-cfDNA) in order to identify organ injury in kidney transplant recipients. AlloSure is analytically validated as a sensitive, specific, and precise measurement of dd-cfDNA. AlloSure detects active rejection (acute active ABMR, chronic active ABMR, or TCMR) with high accuracy, outperforms serum creatinine in kidney transplant recipients, and is highly sensitive in distinguishing ABMR from no ABMR. AlloSure is performed in the CareDx CLIA-certified laboratory. http://www.allosure.com/ About AlloMap® AlloMap Molecular Expression Testing is a non-invasive blood test used to aid in the identification of heart transplant recipients with stable allograft function who have a low probability of moderate/severe acute cellular rejection at the time of testing in conjunction with standard clinical assessment. AlloMap testing measures the expression levels of 20 genes from a blood sample. The combined expression of these genes is represented as an AlloMap test score. AlloMap is performed in the CareDx CLIA-certified laboratory and has been commercially available in the United States since 2005. AlloMap was cleared by the U.S. Food and Drug Administration in 2008 and was CE marked for the European Union in 2011. Use of AlloMap is also included in the International Society for Heart and Lung Transplantation (ISHLT) Practice Guidelines, published in August 2010, the worldwide standard for the care of heart transplant patients. http://www.allomap.com/
Thrive Here & What We Value1. Focus on improving the lives of organ transplant patients worldwide2. Taking great care of our people, so they take even greater care of our patients3. CareDx offers products, testing services, and digital healthcare solutions along the pre and post-transplant patient journey4. CareDx is the leading provider of genomics-based information for transplant patients5. Competitive Total Rewards package including: Competitive base salary and incentive compensation, Health and welfayer benefits, 401(k) savings plan match, Employee Stock Purchase Plan, Pretax commuter benefits
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