Overview

The Senior Specialist - IT Security Operations role is responsible for ensuring the availability and efficient operations of MMC security infrastructure worldwide while enforcing security policies and reducing risk to Marsh & McLennan Companies. CyberSecurity Operations is a crucial role within MMC, requiring technical expertise and a positive, collaborative attitude.

Technologies include next-generation firewalls within the cloud and on-premises, web application firewalls, proxies, advanced malware prevention, remote access, data loss prevention, and intrusion detection/prevention systems.

What you will do

• Tier II-IV troubleshooting incident
• Change and configuration management
• Policy optimization
• Infrastructure management
• Capacity management
• Patch and OS management
• Event monitoring and alerting
• Vulnerability management
• Cybersecurity Incident Response
• Security Projects
• Risk reduction through policy optimization and audit

What you need to have

• 5+ years of network security experience within large-scale operations
• One or more of the following: Cisco ASA, FirePower, Palo Alto, BlueCoat Proxy, Zscaler, F5 ASM, FireEye
• Expertise in TCP/IP and related protocols with collection and evaluation of HTTPS & TCP/IP dumps using Wireshark, HTTPWatch, tcpdump, Fiddler, and similar tools
• Strong analytical, problem-solving, and root cause analysis skills related to security operations technologies
• Excellent verbal, written and collaborative interpersonal communication skills
• Working knowledge of Unix/Linux CLI

What makes you stand out

• Administration of Blue Coat Proxy SG 250-430 certification
• Blue Coat Proxy Administrator or Professional (BCCPA or BCCPP) certification
• PaloAlto Networks PCNSE v9 certification
• 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
• SANS/GIAC certifications

Why join our team

• Professional development opportunities, interesting work, and supportive leadership
• Inclusive culture with opportunities to create impact for colleagues, clients, and communities
• Career opportunities, benefits, and rewards to enhance well-being
• Flexible benefits package (up to 20% of annual salary)
• 30+ days off (including legal days off, birthday off, public holiday replacements, and benefits buy/sell options)
• Performance bonus scheme
• Charity contributions matching, charity days off, Pay it Forward
• Core benefits: Pension, Life and Medical Insurance, Meal Vouchers, Travel Insurance

Marsh McLennan (NYSE: MMC) is a global leader in risk, strategy and people, advising clients in 130 countries across four businesses: Marsh, Guy Carpenter, Mercer and Oliver Wyman. For more information, visit marshmclennan.com, or follow on LinkedIn and X.

Marsh McLennan is committed to creating a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age, background, disability, ethnic origin, family duties, gender orientation or expression, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law. Marsh McLennan is committed to hybrid work with remote options and in-office collaboration at least three days per week. Office-based teams identify an anchor day for in-person presence.