Principal, Security Development & Automation

VulnU; Limerick; Hybrid; EUR 120,000 - 180,000; Full time

Benefits offered by this job

No visa sponsorship

Paid parental leave

Equity

Job summary

Northern Trust is seeking a Principal, Security Development & Automation in Limerick to lead automation-driven security initiatives. You will design AI-enabled workflows, API integrations and playbooks that strengthen cyber defense and reduce manual work, while ensuring auditability and policy alignment.

The role requires deep expertise in Python, REST APIs, and security platform integrations, with mentoring responsibilities across security engineering, cloud and risk teams.

Qualifications

• 15 years of experience in cybersecurity, software engineering or security automation.
• Hands-on Python development, API consumption and automation frameworks.
• Experience integrating security platforms through REST APIs and event-driven patterns.
• Mentor junior engineers and influence across teams in a regulated environment.

Responsibilities

• Protect Northern Trust by engineering automation-first security capabilities.
• Design and deliver AI-enabled workflows, API integrations and playbooks.
• Develop secure, auditable automation assets for scalable security operations.
• Lead vulnerability scanning/remediation solutions and integration patterns.

Skills

Python

REST APIs

AI/LLM workflows

Security automation

Mentoring

Tools

Azure AI Foundry

Azure Functions

GitHub Actions

Terraform

Vulnerability management tools

Job description

# Principal, Security Development & AutomationNorthern Trust · northerntrust.comCategory: Security EngineeringLocation: Limerick, IrelandLevel: Staff / Principal## Quality of lifeWhat the posting states. Hover or tap a perk to see the line it came from.* No visa sponsorship* Paid parental leave* EquityAbout Northern TrustAs a global leader in innovative wealth management, asset servicing, asset management and banking services, Northern Trust (Nasdaq: NTRS) is proud to guide the world’s most successful individuals, families, corporations and institutions.Since 1889, we have aligned our efforts with our three guiding Principles That Endure: Service, Expertise, and Integrity. Together, they reflect the three cornerstones of business conduct which we strive to instill in our employees, whom we call partners, and to provide to our clients and the communities we serve worldwide.With more than 135 years of financial experience and over 24,000 partners, we serve the world’s most sophisticated clients using leading technology and exceptional service.The Principal, Security Development & Automation is a senior technical contributor who helps protect Northern Trust by engineering automation-first security capabilities. This role is responsible for designing and delivering AI-enabled workflows, API integrations, playbooks, scripts and platform services that strengthen cyber defense, reduce manual operational burden and make security outcomes more consistent, measurable and repeatable. The Principal Partner works across security engineering, operations, infrastructure, application, risk, audit and technology teams to identify high-value security workflows, translate them into automation patterns and deliver solutions that improve control execution, threat response, vulnerability management, evidence collection and operational resilience.What You'll DoProtect Northern Trust Through Security Driven Development and AutomationBuild development and automation capabilities that help protect Northern Trust’s technology environment, reduce cyber risk and improve the consistency of security execution.Engineer AI agent-based workflows that support security triage, enrichment, correlation, investigation support, evidence collection, control validation and remediation orchestration.Create secure API integrations across security platforms, ITSM, CMDB, vulnerability management, cloud, network, identity, data and observability tools to connect signals, decisions and actions.Develop reliable workflow automation assets that remove friction from security operations and make high-value controls easier to operate at scale.Partner with security architecture, platform engineering, cloud security, IAM, threat and governance teams to create reusable automation standards, secure engineering patterns, guardrails and operational handoffs.Key DeliverablesOwn development and automation capabilities that help Northern Trust protect critical services and data, including:Security workflow automation that accelerates discovery, response, remediation and control validationAPI integrations and reusable playbooks that connect security platforms, enterprise data sources and operational systems of recordAI-enabled assistants and agents that improve security decision support while respecting enterprise controls, approvals and data protection requirementsDesign and Build LLM-based vulnerability scanning and remediation solutions.Integrate LLM capabilities responsibly using enterprise AI platforms such as AI Foundry, approved model providers and vendor AI harnesses to enhance—not replace—security judgment and control execution.Develop prompt, retrieval, orchestration, testing and evaluation patterns that make AI-enabled workflows reliable, observable, secure and aligned to enterprise policy.Engineer automation with strong authentication, authorization, secrets handling, logging, exception handling, change control and auditability so solutions can be trusted in production security workflows.Document architecture, runbooks, decision logic, reusable patterns and operational handoffs so capabilities can be supported, governed and improved over time.Influence platform roadmaps, vendor integrations and automation priorities based on risk reduction, control effectiveness, resiliency, stability and reuse.Mentor junior team membersWhat You'll Bring15 years of experience in cybersecurity, software engineering, security automation, cloud engineering, platform engineering, infrastructure automation or related technology disciplines.Strong understanding of how development and automation can be used to protect enterprise environments, improve control execution and reduce operational risk.Demonstrated ability to operate as a principal-level technical partner: setting direction, influencing architecture, mentoring engineers, leading complex technical delivery and driving adoption across teams without relying on direct authority.Hands-on development skills in Python, including API consumption, data transformation, automation frameworks, error handling, testing and operational supportability.Experience integrating security, ITSM, cloud, identity, observability or data platforms through REST APIs, webhooks, event-driven patterns, workflow tools or orchestration platforms.Working knowledge of LLM-enabled solution patterns, AI agent workflows, retrieval-augmented generation, prompt engineering, model evaluation, AI guardrails and secure use of enterprise AI platforms.Ability to deliver in a regulated environment with strong attention to audit-ready evidence, access controls, change management, testability, resiliency and production support.Nice to HavePrior experience in financial services, banking, asset servicing, wealth management or another highly regulated industry.Experience with ServiceNow workflows, Vulnerability Response, SecOps, CMDB, ITSM integrations or similar enterprise workflow platforms.Experience with Azure AI Foundry, Azure Functions, Logic Apps, GitHub Actions, Terraform, CI/CD pipelines or cloud-native automation patterns.Experience building automation for vulnerability management, exposure management, threat response, identity security, network security or cloud security operations.Work AuthorizationApplicants must have the right to work in Ireland at the time of application and for the duration of employment.Please note that Northern Trust is unable to provide employment permit sponsorship for this role. This includes Critical Skills Employment Permits, General Employment Permits, Intra-Company Transfer Employment Permits, Stamp 1G permissions, and other employment permits under Irish immigration frameworks.Working with UsAs a Northern Trust partner, you will be part of a flexible and collaborative work culture, which has a strong history of financial strength and stability. Movement within the organization is encouraged, senior leaders are accessible, and you can take pride in working for a company committed to an inclusive workplace and assisting the communities we serve.Philanthropy is deeply rooted in Northern Trust’s history and is an essential element of our culture. Employees around the world give their time and talent to work for the greater good of their communities.Reasonable AccommodationNorthern Trust is committed to working with and providing adjustments to individuals with health conditions and disabilities. If you need a reasonable accommodation for any part of the employment process, please email our HR Service Center at MyHRHelp ntrs.com, or alternatively you can discuss your individual requirements with the recruiter you are working with.