Sr. Network Security Engineer

Siemens Healthineers; Mississauga; On-site; CAD 80,000 - 120,000; Full time

Job summary

An established industry player is seeking a skilled Sr. Network Security Engineer to lead the design and implementation of robust network security infrastructures. This role emphasizes collaboration across teams, focusing on Cisco Software-Defined Access and network automation. The ideal candidate will possess deep knowledge of security protocols and a strong ability to troubleshoot complex issues. Join a diverse team committed to pioneering breakthroughs in healthcare technology, where your contributions will have a meaningful impact on patient outcomes and operational excellence. This is an exciting opportunity to grow professionally while making a difference in the world of healthcare.

Qualifications

• 5+ years in network engineering with a focus on enterprise-level solutions.
• Strong experience with Cisco SDA technology and network security protocols.

Responsibilities

• Lead design and optimization of secure network infrastructures.
• Analyze network traffic to enhance system reliability and availability.

Skills

Network Engineering

Cybersecurity

Cisco SDA

Network Protocols (BGP, OSPF)

Scripting (Python, Bash)

Network Security Technologies

Problem Solving

Education

BS in Computer Science

MS in related fields

Tools

Cisco DNA Center

Cisco Identity Services Engine

Ansible

AWS

Azure

Job description

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Join us in pioneering breakthroughs in healthcare. For everyone. Everywhere. Sustainably.

Our inspiring and caring environment forms a global community that celebrates diversity and individuality. We encourage you to step beyond your comfort zone, offering resources and flexibility to foster your professional and personal growth, all while valuing your unique contributions.

Varian is seeking an experienced Sr. Network Security Engineer that will be responsible for the design, implementation, and management of an organization's network security infrastructure. This role requires advanced technical skills, a deep understanding of security protocols, and the ability to lead security initiatives to protect the organization's assets from cyber threats.

You Are Responsible For

• Leading the design, deployment, and optimization of secure, scalable network infrastructures with a focus on Cisco Software-Defined Access (SDA) and other SDN-based technologies.
• Collaborating cross-functionally to manage and fine-tune policy-based automation and network segmentation, ensuring alignment with security and performance objectives.
• Providing strategic guidance on network transformation initiatives, including SDA adoption, infrastructure automation, and security architecture enhancements.
• Analyzing network traffic and performance metrics to identify trends, proactively resolve issues, and enhance overall system reliability and availability.
• Ensuring network implementations and configurations adhere to architectural standards, security policies, and regulatory compliance frameworks.
• Acting as an escalation point for critical network issues, applying deep troubleshooting expertise to drive swift resolution of incidents.
• Delivering expert-level support for Priority 1 and major service outages, functioning as a subject matter expert in network operations and incident response.
• Generating and present regular reports on network health, project progress, and operational metrics to senior leadership.
• Mentoring and supporting the development of junior network engineers and administrators, fostering a culture of technical excellence and continuous learning.
• Staying current with emerging technologies and trends in networking—particularly SD-WAN, SDA, SDN, and automation—and evaluate their applicability to enterprise environments.
  
  

Minimum Qualifications

• BS in Computer Science and or the following: Information Technology, Cybersecurity, Network Engineering, Information Systems and or Electrical Engineering. MS Preferred.
• Minimum of5+ years in network engineering and solution designing, with a focus onenterprise-level networking solutions.
• Strong hands-on experience withCisco SDA technology, includingCisco DNA Center,Cisco Identity Services Engine (ISE),Cisco Catalyst switches, andCisco Wireless LAN controllers.
• Deep knowledge ofSoftware-Defined Networking (SDN),network automation, and network security.
• Proficient in network protocols, includingBGP,OSPF,LISP, MPLS, VXLAN, andEVPN.
• Experience withnetwork segmentation,micro-segmentation, andpolicy-driven networks.
• Expertise in network security technologies, including firewalls, VPNs, IDS/IPS, SIEM (Security Information and Event Management) systems, and encryption protocols.
• Strong knowledge of network protocols, architecture, and security best practices.
• Proficiency in scripting languages (e.g., Python, Bash) and automation tools.
• Relevant certifications such as CISSP (Certified Information Systems Security Professional), CISM (Certified Information Security Manager), CCSP (Certified Cloud Security Professional), CEH (Certified Ethical Hacker), or equivalent.
• Vendor Expert certification such as, Palo Alto Network, CheckPoint, Cloud-based Firewalls.
• Working Knowledge of Enterprise applications, Datacenter fabric and Service Provider backbone
• Working knowledge of authentication systems such as OKTA, SAML, LDAP, and MS Active Directory
• Industry certifications such as Zscaler, CCNP, JNCIP, PCNSA, CISSP, or CCSP, ITSM, ITIL
• Familiarity with cloud-based networking (e.g., AWS, Azure) and hybrid networking solutions and automation tools like Ansible, Python, or Salt Stack for network management and orchestration.
  
  

Profile And Skills

• Your ability to lead discussions on relevant business topics in English is the basis for efficient and eye-level communication with colleagues and partners worldwide
• You have excellent problem-solving, troubleshooting, and analytical skills.
• You have strong communication and presentation skills, with the ability to convey technical concepts to both technical and non-technical stakeholders on management level.
• Ability to work collaboratively in cross-functional teams and manage multiple projects simultaneously.
• You are able to identify risks, document them and communicate along developed mitigation measures.
  
  

Who we are: We are a team of more than 73,000 highly dedicated Healthineers in more than 70 countries. As a leader in medical technology, we constantly push the boundaries to create better outcomes and experiences for patients, no matter where they live or what health issues they are facing. Our portfolio is crucial for clinical decision-making and treatment pathways.

How we work: When you join Siemens Healthineers, you become one in a global team of scientists, clinicians, developers, researchers, professionals, and skilled specialists, who believe in each individual’s potential to contribute with diverse ideas. We are from different backgrounds, cultures, religions, political and/or sexual orientations, and work together, to fight the world’s most threatening diseases and enable access to care, united by one purpose: to pioneer breakthroughs in healthcare. For everyone. Everywhere. Sustainably.

To find out more about Siemens Healthineers' businesses, please visit our company page at Siemens Healthineers Canada.

Equal Employment Opportunity Statement: Siemens Healthineers Canada Limited is committed to creating a diverse environment and is proud to be an equal opportunity employer. While we appreciate all applications we receive, we advise that only candidates under consideration will be contacted.

Reasonable Accommodations: Siemens Healthineers is committed to equal employment opportunity. As part of this commitment, we will ensure that persons with disabilities are provided reasonable accommodations.

If you require a reasonable accommodation in completing a job application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please fill out the accommodations form here. If you’re unable to complete the form, you can reach out to our HR People Connect People Contact Center for support at [e-mail]. Please note HR People Connect People Contact Center will not have visibility of your application or interview status.

Data Privacy: We care about your data privacy and take compliance with GDPR as well as other data protection legislation seriously. For this reason, we ask you not to send us your CV or resume by email. We ask instead that you create a profile in our talent community where you can upload your CV. Setting up a profile lets us know you are interested in career opportunities with us and makes it easy for us to send you an alert when relevant positions become open. Register here to get started.

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To all recruitment agencies: Siemens Healthineers does not accept agency resumes. Please do not forward resumes to our jobs alias, employees, or any other company location. Siemens Healthineers is not responsible for any fees related to unsolicited resumes.

Beware of Job Scams: Please beware of potentially fraudulent job postings or suspicious recruiting activity by persons that are currently posing as Siemens Healthineers recruiters/employees. These scammers may attempt to collect your confidential personal or financial information. If you are concerned that an offer of employment with Siemens Healthineers might be a scam or that the recruiter is not legitimate, please verify by searching for the posting on the Siemens Healthineers career site.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  Hospitals and Health Care

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