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Company Name:
Express Scripts
Approximate Salary:
Not Specified
Saint Louis, MO
United States
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Experience level:
Education level:

Sr. Network Security Engineer


The Sr. Network Security engineer is a technical position within the Technology organization of Express Scripts. The position reports to the Director responsible for security infrastructure.


Ensure adherence to Express Scripts security design principles and information protection policies. Act as a technical lead for complex security infrastructure projects. Use existing and new capability in order to improve security, reduce overall attack surface, and provide security related visibility into network systems and services. Develop, document, and implement security best practices. Mentor operations team engineers. Develop and implement processes to ensure control effectiveness of security infrastructure. Consult with IT applications owners on security related issues and architecture. Monitor ongoing performance and capability of systems and recommend updates or modifications according to the current threat landscape. Work closely with the risk management organization on security related issues (incident response, vulnerability management, regulatory audits).


  • College degree in Information systems/security, related technical field or equivalent work experience
  • Minimum 8 years of experience in network security concepts, tools, and design
  • Deep industry knowledge of firewall and DMZ design.Expert level Checkpoint firewall skills.Experience with Cisco ASAs.
  • VPN technology (remote access, site to site, IKE/IPSEC lifecycle, troubleshooting, concepts)
  • TCP/IP based networking (addressing, routing, full command of the OSI model)
  • Packet capture and protocol analysis (TCP, UDP, ICMP, packet dissection)
  • DNS, DHCP & IPAM (DDI) protocols and security
  • Application delivery and load balancing concepts (F5 experience a plus)
  • Basic administrative experience with Windows/Linux operating systems
  • Knowledge of advanced network engineering principles, communications industry standards, and developing technologies
  • Analytical Abilities - Analytical and information gathering skills allow for effective assessment of business risks and exposures. Problem-solving skills including working collaboratively with peer technical teams to resolve cross-platform problems or to develop security risk solutions.
  • Communication skills - Strong verbal & written communication skills. Communications are complete & understandable to target audience. Demonstrates effective listening skills.
  • Independence - Works independently with only general direction; appropriately keeps management informed of relevant issues.
  • Mentoring - Mentor to other analysts and operations personnel
  • Administration - Handles some routine daily administrative tasks associated with data security and specific project assignments including creating documentation.
  • Demonstrated ability to handle multiple projects and initiatives prioritizing work as needed
  • Familiarity with health care or PBM industry helpful


This expansive group is accountable for planning, building and driving core technology solutions and services across virtually every aspect of the business, including Infrastructure, Engineering, Operations, Architecture, Pharmacy Technology, Home Delivery, Specialty and IT Service Management. The following teams help comprise this ever-important group:

  • IT Architecture & Innovation defines and drives the company s architecture strategy.
  • IT Engineering manages all engineering activities associated with the company s architecture and attendant technology.
  • IT Operations manages all the technology that supports the company s operational functions.


Advance your career with the company that makes it easier for people to choose better health.

Express Scripts is a leading healthcare company serving tens of millions of consumers. We are looking for individuals who are passionate, creative and committed to creating systems and service solutions that promote better health outcomes. Join the company that Fortune magazine ranked as one of the \"Most Admired Companies\" in the pharmacy category. Then, use your intelligence, creativity, integrity and hard work to help us enhance our products and services. We offer a highly competitive base salary and a comprehensive benefits program, including medical, prescription drug, dental, vision, 401(k) with company match, life insurance, paid time off, tuition assistance and an employee stock purchase plan.

Express Scripts is committed to hiring and retaining a diverse workforce. We are an Equal Opportunity Employer, making decisions without regard to race, color, religion, sex, national origin, age, veteran status, disability, or any other protected class. Applicants must be able to pass a drug test and background investigation. Express Scripts is a VEVRAA Federal Contractor.

Express Scripts Canada, a registered business name of both ESI Canada and Express Scripts Canada Services, each an Ontario partnership, is indirectly owned by Express Scripts Holding Company, and is one of Canada s leading providers of health benefits management services.

From its corporate headquarters in Mississauga, Ontario, just outside Toronto, Express Scripts Canada provides a full range of integrated pharmacy benefit management (PBM) services to insurers, third-party administrators, plan sponsors and the public sector, including health-claims adjudication and processing services, Home Delivery Pharmacy Services, benefit-design consultation, drug-utilization review, formulary management, and medical and drug-data analysis services, to better facilitate better health decisions and lower costs. For more information about Express Scripts Canada, visit its Website at .

We are an equal opportunity employer that promotes a diverse, inclusive and accessible workplace. By embracing diversity, we build a more effective organization that empowers our employees to be the best that they can be. We are committed to creating a working environment that is barrier-free and we are prepared to provide accommodation for people with disabilities.


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