Sr. Sec Engineer, Cyber Defense Platforms , Assistant Vice President

Location: Kilkenny, Ireland

Time Type: Full time

Job Description

Primary

Perform hands‑on endpoint hardening activities to reduce enterprise attack surface across workstations and servers by enforcing secure configurations, minimizing unnecessary services, and supporting execution control mechanisms under established standards and guidance.

Support application execution control and endpoint attack surface reduction through day‑to‑day administration of Airlock application allowlisting, including policy updates, rule maintenance, and exception handling following approved processes

Review, triage, and process Airlock allowlisting requests from application and infrastructure teams, performing technical validation and escalating complex or high‑risk cases to senior engineers as required.

Assist with maintaining endpoint security baselines by implementing configuration changes, validating compliance, and documenting deviations or operational impacts.

Provide operational support for endpoint security tooling and platforms, including troubleshooting enforcement issues, validating allowlisting behavior, and supporting audit and compliance evidence collection

Participate in a scheduled on‑call rotation, providing after‑hours and weekend support for: Endpoint hardening or execution control issues

Secondary:

Collaborate with Network Security (NetSec) teams as needed to support endpoint‑to‑network exposure reduction efforts, such as restricted protocol usage, connectivity dependencies, or Zero Trust enforcement impacts.

Support Data Security (DataSec) initiatives by assisting with endpoint controls that help protect sensitive data, including prevention of unauthorized tools and alignment with approved software and data protection policies

About State Street

Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success.

We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you’ll benefit from inclusive development opportunities, flexible work-life support, paid volunteer days, and vibrant employee networks that keep you connected to what matters most. Join us in shaping the future.

As an Equal Opportunity Employer, we consider all qualified applicants for all positions without regard to race, creed, color, religion, national origin, ancestry, ethnicity, age, disability, genetic information, sex, sexual orientation, gender identity or expression, citizenship, marital status, domestic partnership or civil union status, familial status, military and veteran status, and other characteristics protected by applicable law.

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