Join our IT Security Engineering team at MMC Tech, where we provide cutting-edge IT infrastructure and operational services to our family of companies. We are seeking a Senior Security Engineer who is passionate about enhancing our security posture and driving innovative solutions.

Senior Security Engineer

We will count on you to:

Utilize expert knowledge of micro-segmentation techniques, particularly Illumio, to enhance our security framework.

Develop and implement firewall policies for various network protocols (TCP, UDP, ICMP) and ensure robust security measures are in place.

Research, select, and deploy information security solutions that align with executive strategies while maintaining transparency for end users.

Provide tier 3 engineering support for security solutions, leading troubleshooting efforts and collaborating with vendors to resolve complex issues.

Document processes and develop automated solutions to reduce risk and improve team performance.

What you need to have:

A minimum of 5 years of experience in technical security roles, with 10+ years preferred, in a large corporate enterprise environment (Financial Services preferred).

Proven experience with security technologies such as cloud-based proxies, zero-trust architecture, micro-segmentation, and VPNs.

Relevant professional certifications (e.g., CISSP) and a strong foundation in security engineering and architecture disciplines.

Scripting experience in modern languages (Python, PowerShell, etc.) for automation tasks.

What makes you stand out:

A college/university degree or equivalent experience in information security and networking.

Knowledge of common security controls on Windows and Unix-based operating systems, along with server administration and identity management experience.

Excellent written and verbal communication skills, with the ability to present effectively to senior leadership.

A self-starter attitude with the ability to work independently and collaboratively in a diverse global IT environment.

Why join our team:

We help you be your best through professional development opportunities, interesting work and supportive leaders.

We foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have impact for colleagues, clients and communities.

Our scale enables us to provide a range of career opportunities, as well as benefits and rewards to enhance your well-being.

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. With annual revenue of $24 billion and more than 90,000 colleagues, Marsh McLennan helps build the confidence to thrive through the power of perspective. For more information, visit marshmclennan.com, or follow on LinkedIn and X.

Marsh McLennan is committed to embracing 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, veteran status (including protected veterans), or any other characteristic protected by applicable law. If you have a need that requires accommodation, please let us know by contacting reasonableaccommodations@mmc.com.



The applicable base salary range for this role is $116,600 to $233,000.

The base pay offered will be determined on factors such as experience, skills, training, location, certifications, education, and any applicable minimum wage requirements. Decisions will be determined on a case-by-case basis. In addition to the base salary, this position may be eligible for performance-based incentives.

We are excited to offer a competitive total rewards package which includes health and welfare benefits, tuition assistance, 401K savings and other retirement programs as well as employee assistance programs.

Applications will be accepted until: