Senior Network Systems Administrator (Dallas, TX)

| Dallas-Fort Worth, TX
Apply Now
By clicking continue you agree to Built In’s Privacy Policy and Terms of Use.

The Senior Network Systems Administrator is primarily responsible for deploying and maintaining networking and network security infrastructure to ensure the confidentiality, integrity and availability of the platform hosting of Milliman's employee benefit administration systems, collaboration systems, and hosting of third-party applications used by the Employee Benefits Administration practice. This role will support the Technology Architect and Product Development groups as required to implement new networked infrastructure and services.

This includes the data centers hosting and related platforms and third-party connectivity integrations that support the various benefit administration systems and services of the Employee Benefits Administration practice.

This position is also responsible to provide on call support 24 hours, 7 days a week as coordinated with the team.

• Design, configure, implement and maintain network security platforms and services and their associated software, such as routers, switches, firewalls, intrusion detection/intrusion prevention and cryptography platforms
• Diagnose and resolve unique and complex networking related problems
• Implement automation and code-first methodologies to systems configuration and management
• Monitor and resolve network system alerts and production incidents
• Follow strict change management protocols and security procedures
• Maintain documentation of network environment including logical and physical diagrams and maps
• Assist in documentation of assets, processes, procedures and solutions
• Assist in the management of the vulnerability and risk management program
• Support our compliance with annual SOC 2, partner and internal audits
• Ensure EB Admin Technology adherence to Milliman's Information Security Policy
• Support and participate in business continuity and disaster recovery plan development and testing
• Support product development teams to ensure sprint goals are achieved
• Work with support team to successfully manage business to business environments
• Fulfill the technical requirements of your team as needed to accomplish team responsibilities
• Maintain on-call support and ability to receive and respond to critical system alerts
• After-hours and weekend work required as planned to support scheduled change events
• Maintains good working relationships with peers both within and outside EB Admin Technology

• Leadership Skills. Ability to gain support and trust of employees and peers to work through projects and issues
• Technology Skills:

  • 5+ years expertise implementing, configuring and managing common networking protocols including Switching, Routing, TCP/IP, ACLs, NAT, SNAT, QoS, HTTP, SFTP, FTPS, DNS, 802.11, H.323, SIP, SNMPv3, Load Balancing, and advanced uses of networking technologies including VARP, VRRP, Dynamic and Static BGP, OSPF, VXLAN, LACP, LAG/MLAG, tagging, iSCSI, performance tuning and geo-distributed enterprise environments
  • 5+ years expertise in modern networking security including NextGen Security Appliances, IDS/IDP, Application Delivery Controllers, Cryptography, PKI Management, Enterprise Wireless, 802.1x, TACACS+, Radius, LDAP, AAA, SysLog, and sFlow
  • 3+ years working knowledge of the Microsoft Stack including Windows Servers, Clusters, Hyper-V, IIS, .Net, SQL Server, NPS, Active Directory, Network Teaming, Advanced Firewall, Defender
  • Proficient using networking tools including packet capture, Wireshark, nmap, tracert, putty, etc.
  • Experience working with service and operating models including ITIL, Agile Scrum and SOC 2 certified environments
  • Preferred experience with CheckPoint, Trend Micro, Arista EOS and CloudVision, Comware, ArubaOS, A10 Networks ACOS, Junos, ClearPass, other common management protocols and scripted configuration management
  • Proven ability to deliver consistent and reliable work product in a dynamic and complex working environment hosting multi-tiered, mission critical systems that do not tolerate downtime

• Communication Skills. Ability to communicate with peers inside and outside of the EB Admin Technology to set and achieve goals
• Bachelor's degree, any field or equivalent combination of experience and education
• Continuing Education: Keep current on trends and risks associated to networked systems and services by self-paced learning, forums, conferences, and certifications
• Important Qualities: Problem Solving, Communication Skills, Organization, Flexibility, and Project Management


Must demonstrate Milliman's core values which include:
• Integrity - Must be honest, fair, active listener, open communicator and accountable.
• Teamwork - Work cooperatively and treat clients and coworkers with respect and dignity while valuing individual differences, encouraging new ideas and sharing information.
• Commitment to excellence - Demonstrate commitment to being creative, innovative, flexible and adaptable, focusing on quality solutions, continually improving and being a winner.


A competitive base salary, plus a performance-based incentives bonus tied to the overall business performance. The firm offers an outstanding and comprehensive benefits package:
• Medical, dental and vision coverage for employees and their families, including eligible domestic partners.
• A 401(k) plan with matching program
• Paid Parental Leave up to 12 weeks
• Profit sharing as a discretionary contribution to employees' retirement accounts
• Paid Time Off (PTO) starts accruing on the first day of work and can be used for any reason.
• Adoption assistance
• Milliman covers 100% of the premiums for life insurance, AD&D, and both short term and long term disability coverage
• Flexible spending accounts allow employees to set aside pre-tax dollars to pay for dependent care, transportation and applicable medical needs


Milliman employs more than 4,600 people working in employee benefits, healthcare, life insurance/financial services, and property and casualty insurance. For more than 70 years, the firm has quietly earned a reputation for exceptional services, innovation and quality. Today Milliman is one of the nation's most highly regarded providers of retirement plan services to the full spectrum of business, financial, government and union organizations.


Our company, with the full support of our Chief Executive Officer, is fully committed to the maximum utilization of all human resources and the goals of Equal Employment Opportunity and Affirmative Action. We recruit, hire, train, and promote, and consider qualified applicants for employment, in all job titles without regard to age, ancestry, citizenship status, color, creed, familial status, genetic information, marital status, national origin, political ideology, race, religion, sex, sexual orientation, gender identity, status as an individual with a disability, or veteran status, including qualified disabled veterans, Armed Forces service medal veterans, recently separated veterans, and active duty wartime or campaign badge veterans; and shall not discriminate against any individual, or any other characteristic protected by law. Should you have a disability that requires assistance and/or reasonable accommodation with the job application process, please contact the HR department.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities

The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. 41 CFR 60-1.35(c)
More Information on Milliman
Milliman operates in the Consulting industry. The company is located in Seattle, WA, Portland, OR, Boise, ID, Salt Lake City, UT, San Francisco, CA, Walnut Creek, CA, Irvine, CA, Pasadena, CA, San Diego, CA, Phoenix, AZ, Denver, CO, Houston, TX, Dallas, TX, Omaha, NE, Minneapolis, MN, Minneapolis, MN, Appleton, WI, Brookfield, WI, Chicago, IL, St. Louis, MO, Indianapolis, IN, Atlanta, GA, Tampa, FL, Suite 710, VA, Wayne, PA, Little Falls, NJ, New York, NY, Windsor, CT, Albany, NY, Wakefield, MA, Portland, ME and South Burlington, VT. Milliman was founded in 1947. It has 3644 total employees. It offers perks and benefits such as Flexible Spending Account (FSA), Dental Benefits, Vision Benefits, Health Insurance Benefits, Life Insurance and 401(K). To see all 39 open jobs at Milliman, click here.
Read Full Job Description
Apply Now
By clicking continue you agree to Built In’s Privacy Policy and Terms of Use.

Similar Jobs

Apply Now
By clicking continue you agree to Built In’s Privacy Policy and Terms of Use.
Save jobView Milliman's full profileFind similar jobs