Skip Navigation

Senior Network Security Engineer

Location: Phoenix, Arizona, United States

Secondary Locations: Hoboken,New Jersey,United States;Dallas,Texas,United States;

Company: Marsh & McLennan Companies

Job ID R_041930-en

Senior Network Security Engineer

Location: Phoenix, AZ, or Dallas, TX, or Hoboken, NJ.

Company: Marsh & McLennan Companies

The Senior Network Security Engineer role is responsible for ensuring the availability and efficient operations of network related MMC security infrastructure worldwide.

Technologies include next-generation firewalls, web application firewalls, proxies, advanced malware prevention, data loss prevention, and intrusion detection/prevention systems. 

Daily tasks consist of but not limited to change and configuration management of firewall policies, Tier III-IV troubleshooting, patching, capacity management and system upgrades to network security infrastructure.  This position will also participate in Cyber Security Incident Response activities.  Role reports to the Security Operations Manager.

Security Operations is a crucial role within MMC.  Technical expertise combined with positive, collaborative, can do attitudes are required to make this team successful.

Travel:  Less than 5%.

Work from Home:  20-50%

Minimum Qualifications

  • Bachelor's Degree in a related area, preferred
  • 5+ years of advanced network security experience within large-scale global operations.
  • Strong analytical and problem-solving skills relating to security operations technologies.
  • Security infrastructure experience pertaining to Firewalls, IPS/IDS, Proxies, Enterprise Log Management, Load-Balancers, WAFs, VPN, DLP, Forensic Analysis, and SIEM
  • Excellent verbal, written and collaborative interpersonal communication skills
  • Expertise knowledge of TCP/IP and related protocols and with collecting and evaluating HTTPS & TCP/IP dumps using Wireshark, HTTPWatch, tcpdump, Fiddler, and similar tools
  • Working knowledge of Unix/Linux CLI.

Bonus Qualifications

  • Strong working knowledge of Bluecoat Proxy with certification as a Blue Coat ProxySG Administrator.
  • FireEye HX & NX experience and certifications.
  • F5 Application Security Manager (ASM) expertise & Exam 303-BIG-IP ASM Specialist.
  • Cisco ASA & Firepower with CCNA CyberOps, CCNA Security, and/or CCNP Security certifications.
  • Experience operating within AWS and Azure environments.
  • Strong working knowledge of Palo Alto firewall products with certification as a Palo Alto Networks Certified Security Engineer (PCNSE).
  • SANS/GIAC certifications

Marsh & McLennan Companies is a global professional services firm offering clients advice and solutions in the areas of risk, strategy and people. Marsh is a leader in insurance broking and risk management; Guy Carpenter is a leader in providing risk and reinsurance intermediary services; Mercer is a leader in talent, health, retirement and investment consulting; and Oliver Wyman is a leader in management consulting. With annual revenue of $13 billion and approximately 60,000 colleagues worldwide, Marsh & McLennan Companies provides analysis, advice and transactional capabilities to clients in more than 130 countries. The Company is committed to being a responsible corporate citizen and making a positive impact in the communities in which it operates. We embrace a culture that celebrates and promotes the many backgrounds, heritages and perspectives of our colleagues and clients. For more information, please visit us at: www.mmc.com/diversity.  Visit www.mmc.com for more information and follow us on LinkedIn and Twitter @MMC_Global

Marsh & McLennan Companies offers competitive salaries and comprehensive benefits and programs including: health and welfare, tuition assistance, 401K, employee assistance program, domestic partnership benefits, career mobility, employee network groups, volunteer opportunities, and other programs. For more information about our company, please visit us at: http://www.mmc.com/.  We embrace a culture that celebrates and promotes the many backgrounds, heritages and perspectives of our colleagues and clients. For more information, please visit us at: www.mmc.com/diversity.

Marsh & McLennan Companies and its Affiliates are EOE Minority/Female/Disability/Vet/Sexual Orientation/Gender Identity employers.

Apply Later
  • Stay Connected

    Join our Talent Community and receive information on future opportunities.

    Sign Up

  • Saved Jobs

    You have not saved any jobs.

    See All Saved Jobs

  • Mercer Campus Careers

    Mercer offers many exciting and fruitful internship and entry-level positions.

    Learn more here

  • Leadership Recognition

    Dan Glaser, President and CEO, has been named to Institutional Investor magazine’s 2017 All-America Executive Team ranked as the #3 Overall CEO in the insurance industry, #3 with buy-side analysts and #2 with sell-side analysts.

  • Careers at Marsh & McLennan Companies