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Sr. IT Engineer - Network Security

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POST DATE 8/26/2016
END DATE 10/14/2016

Express Scripts Saint Louis, MO

Saint Louis, MO
AJE Ref #
Job Classification
Full Time
Job Type
Company Ref #
Mid-Career (2 - 15 years)


Schedule: Full-time

Job ID: REQ20002005


The Sr. Network Security Engineer is responsible for building and maintaining a secure web infrastructure. They serve as technical project lead for the design, development, implementation and operation of web infrastructure systems and projects.


* Manage network infrastructure systems performance, reliability and availability to service level agreements. Ensure that hardware and application security and controls meet or exceed web Infrastructure guidelines.

Act as an organizational interface with network security vendors that specialize in end-point security, email/gateway security, cloud security and mobile security.

Interact with operations and peer groups for problem coordination, escalation, resolution and reporting. Proactively communicate status on projects, maintenance and network system issues.

Communicate with internal and external business directors and groups to ensure infrastructure systems meet expectations and requirements. Develop detailed project plans and track progress against those plans.

Promote network security best practices and transfer technical knowledge to department members. Develop and maintain comprehensive network system s documentation.

Responsible for rotational on-call responsibility for all Internet Infrastructure related components. Ability to handle multiple projects and tasks at a fast moving pace.


5-7 years of strong experience in web security and network design, implementation and operations.

Knowledge of application delivery (load balancing) environments is a must, strong and specific knowledge of F5 s LTM (BigIP) product is a requirement.

TCP/IP based networking (addressing/sub netting, designing, troubleshooting, routing, OSI model, etc).

Knowledge of Internet Firewall and DMZ environments (design, setup, troubleshooting, policy design and administration, Check Point experience a plus)

Knowledge of VPN technology (remote access, site to site, IPSEC, etc)

Packet capturing and protocol analysis (TCP, UDP, ICMP, packet dissection, etc)

Knowledge of e-mail and SMTP (mail routing, troubleshooting, design, SPAM filtering and content inspection concepts, email security and policy based logic/decisions, etc. (Proofpoint experience a plus)

Knowledge of DNS & DHCP protocols (managing large multi-tiered DNS & DHCP infrastructure, design, troubleshooting, etc.)

Knowledge of Web Proxies (web proxying, mobile code inspection, web security, filtering/authentication, etc.)

Security Discipline (network security, secure network and application design, risk assessment, configuration/hardening, etc.)

Remote access systems and methodologies (work at home type infrastructure including VPN connectivity, VoIP, etc. from remote locations a plus).

DLP (Data Loss Prevention) Concepts, policy analysis, incident response, policy tuning, etc. (experience with Websense DLP a plus).


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 is an EOE
Express Scripts is an Equal Employment Opportunity employer and does not discriminate in employment opportunities or practices on the basis of race, creed, color, religion, sex, national origin, nationality, ancestry, age, disability or status as a disabled veteran or veteran of the Vietnam era, pregnancy, affectional or sexual orientation, gender identity or expression, marital status, status with regard to public assistance, veteran status, citizenship or membership in any other legally protected class. None of the questions in this application are intended to elicit information regarding any protected characteristics, nor imply any limitation, illegal preferences or discrimination based upon non-job-related information or protected characteristics.Applicants must be able to pass a drug test and background investigation and, depending on position requirements, a Department of Defense background investigation. AA/EOE.


One of the largest pharmacy benefits management (PBM) companies in North America, Express Scripts administers the prescription drug benefits of millions of health plan members in the US and Canada. Express Scripts processes claims for about 750 million prescriptions per year, designs drug plans, and offers such services as disease management programs and consumer drug data analysis.

Company Size:
10,000+ Employees
Health Care
Social Media:
1 Express Way
St. Louis, MO 01803
St. Louis, MO 63121

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