McKesson

Sr. Network Systems Engineer, Firewall

McKesson$99K — $132K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 7+ years in network engineering, network security, or security architecture roles.
  • Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or equivalent experience.
  • Expertise in enterprise network security architectures and Palo Alto firewall technologies.
  • Deep understanding of Zero Trust Architecture and secure network design principles.
  • Proficient in routing, switching, TCP/IP, BGP, OSPF, SD-WAN, and enterprise networking technologies.
  • Experience with secure remote access solutions like VPN, ZTNA, and NAC.
  • Familiarity with security monitoring tools including IDS/IPS and security analytics platforms.

Responsibilities

  • Design and implement secure enterprise network architectures for hybrid cloud and on-premises environments.
  • Develop and lead Zero Trust Architecture initiatives for network segmentation and micro-segmentation.
  • Conduct security architecture reviews and offer recommendations to enhance resilience.
  • Engineer and optimize firewall solutions, particularly with Palo Alto technologies.
  • Support secure connectivity through various solutions like Zscaler and Secure Internet Gateway.
  • Design and govern remote access solutions leveraging ZTNA, VPN, and NAC.
  • Monitor and enhance network security using IDS/IPS and traffic analysis.

Benefits

  • Flexible work environment with options for remote, hybrid, or office-based roles.
  • Limited travel required based on business needs.
  • Comprehensive health benefits and rewards package.
Full Job Description

About the Role

McKesson is seeking a Senior Network Security Engineer to help design, secure, and evolve our global enterprise network infrastructure. This role serves as a strategic technical leader responsible for building resilient, scalable, and secure network architectures that support business growth, regulatory compliance, and digital transformation initiatives.

The ideal candidate brings deep expertise in network security architecture, Zero Trust principles, firewall technologies, and enterprise networking. You will partner closely with Security, Infrastructure, Cloud, and Enterprise Architecture teams to strengthen McKesson's security posture while enabling reliable connectivity across hybrid environments.

What You'll Do

  • Design and implement secure enterprise network architectures across hybrid cloud and on-premises environments.

  • Develop and lead Zero Trust Architecture initiatives, including network segmentation and micro-segmentation strategies.

  • Conduct security architecture reviews and provide recommendations that reduce risk and strengthen resilience.

  • Engineer and optimizefirewall and perimeter security solutions, including Palo Alto technologies.

  • Support secure connectivity through Zscaler, HPE Aruba EdgeConnect, Secure Internet Gateway, and web proxy solutions.

  • Design and govern secure remote access solutions leveraging ZTNA, VPN, and Network Access Control (NAC).

  • Monitor, analyze, and improve network security through IDS/IPS technologies, traffic analysis, and security analytics platforms.

  • Lead troubleshooting, root cause analysis, and remediation efforts for complex network and security incidents.

Minimum Requirements

  • 7+ years of professional experience in network engineering, network security, or security architecture roles.

  • Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or equivalent experience.

  • Experience designing and implementing enterprise network security architectures.

  • Expertise with Palo Alto firewalls, policy management, and security controls.

  • Experience with Zero Trust Architecture, network segmentation, and secure network design.

  • Strong understanding of routing, switching, TCP/IP, BGP, OSPF, SD-WAN, and enterprise networking technologies.

  • Experience with VPN technologies, ZTNA, NAC, or secure remote access solutions.

  • Experience supporting security monitoring tools including IDS/IPS, network traffic analysis, or security analytics platforms.

Preferred Experience

  • Experience with Zscaler, HPE Aruba EdgeConnect, SASE, or Secure Internet Gateway technologies.

  • Experience securing hybrid cloud environments.

  • Knowledge of regulatory, compliance, and risk management frameworks.

  • Experience with automation tools such as Ansible, Python, or infrastructure-as-code solutions.

  • Experience conducting security architecture reviews and risk assessments.

  • Exposure to large-scale global enterprise environments.

  • Industry certifications such as PCNSE, CCNP Security, CCIE, CISSP, or equivalent.

  • Experience collaborating with enterprise architecture and cybersecurity leadership teams.

Travel, Work Location & Physical Requirements

  • Limited travel may be required based on business needs.

  • This role may be remote, hybrid, or office-based depending on business requirements.

  • Ability to participate in extended periods of computer-based work and virtual collaboration sessions.

We are proud to offer a competitive compensation package at McKesson as part of our Total Rewards. This is determined by several factors, including performance, experience and skills, equity, regular job market evaluations, and geographical markets. The pay range shown below is aligned with McKesson's pay philosophy, and pay will always be compliant with any applicable regulations. In addition to base pay, other compensation, such as an annual bonus or long-term incentive opportunities may be offered. For more information regarding benefits at McKesson, please 

Our Base Pay Range for this position

$99,100 - $132,100

McKesson has become aware of online recruiting-related scams in which individuals who are not affiliated with or authorized by McKesson are using McKessons (or affiliated entities, like CoverMyMeds or RxCrossroads) name in fraudulent emails, job postings or social media messages. In light of these scams, please bear the following in mind:

McKesson Talent Advisors will never solicit money or credit card information in connection with a McKesson job application.


McKesson Talent Advisors do not communicate with candidates via online chatrooms or using email accounts such as Gmail or Hotmail. Note that McKesson does rely on a virtual assistant (Gia) for certain recruiting-related communications with candidates.

McKesson job postings are posted on our career site: .

About McKesson

McKesson Corporation provides medicines, pharmaceutical supplies, information and care management products and services across the healthcare industry. The Company operates in two segments. The McKesson Distribution Solutions segment delivers ethical drugs, medical-surgical supplies and equipment and health and beauty care products throughout North America. This segment also provides specialty pharmaceutical solutions for biotech and pharmaceutical manufacturers, sells financial, operational and clinical solutions for pharmacies (retail, hospital, long-term care) and provides consulting, outsourcing and other services. The McKesson Technology Solutions segment delivers enterprise-wide clinical, patient care, financial, supply chain, strategic management and software solutions. In July 2011, the Company acquired Portico Systems from Safeguard Scientifics, Inc. On March 25, 2012, it acquired the independent banner and franchise businesses of Katz Group Canada Inc. McKesson Distribution Solutions delivers pharmaceuticals to retail pharmacies and institutional providers like hospitals and health systems. They operate pharmaceutical distribution centers across the country, serving customers in all 50 states. They also deliver a comprehensive offering of health care products, technology, equipment and related services to the alternate site market, including physician offices, surgery centers, long-term care facilities and home care businesses across the country. McKesson is currently the largest pharmaceutical distributor in North America. McKesson also operates McKesson Canada and has an equity holding in Nadro, a leading distributor in Mexico.

McKesson Careers

Join McKesson, a leading global healthcare company, and be part of a team that is redefining the future of healthcare. With a variety of job opportunities available, McKesson is the perfect place to advance your career, whether you're a seasoned professional or just starting out. Work You’ll Do At McKesson, we are committed to improving care in every setting—one product, one partner, one patient at a time. We’re seeking talented professionals to join our team and contribute to a culture of innovation, diversity, and leadership. Our employees are driven by a deep sense of purpose and a desire for continuous growth and improvement. Empower Your Future in Healthcare With positions ranging from internships to leadership roles, McKesson offers unparalleled employment opportunities to develop your skills and advance your career. Our commitment to diversity training ensures that all team members have the opportunity to thrive. Join a team where your skills will be honed, your professional growth will be supported, and where you can genuinely see the difference you make in the lives of patients around the world. Innovative Work Environment McKesson is at the forefront of healthcare innovation. Our team is constantly exploring new ways to improve patient outcomes and streamline care processes. This commitment to innovation is what sets us apart and what makes McKesson an exciting place to work. Career Development and Benefits McKesson believes in nurturing the potential of its employees through robust career development programs and comprehensive benefits designed to support your life and well-being. From leadership training to health and wellness benefits, we ensure our team members are equipped to meet their professional and personal goals. Explore Job Opportunities Whether you’re looking for an internship to kickstart your career, or a senior position to utilize your extensive experience, McKesson offers a range of opportunities. Explore our open positions and find where you can make a difference at McKesson. Stay Connected Join Our Team Search for open positions that match your skills and interests. We are looking for passionate, curious, and solution-driven team players who are ready to take the next step in their careers. Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. Networking and Professional Growth At McKesson, networking and professional growth are part of our everyday environment. We encourage our employees to connect, share, and learn from each other to foster personal and professional development. Job Alert Emails Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding career opportunities that await you at McKesson. Join McKesson today and be part of a team that is dedicated to shaping the future of healthcare.
Learn more about McKesson
Size
58,000 employees
Market Cap
$53.7 billion
Industry
Net Income
-$4.1 billion
Founded
1833
5 Year Trend
+5.9%
Revenue
$237.6 billion
NASDAQ

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