Principal Cybersecurity Engineer

Your work days are brighter here.

We’re obsessed with making hard work pay off, for our people, our customers, and the world around us. As a Fortune 500 company and a leading AI platform for managing people, money, and agents, we’re shaping the future of work so teams can reach their potential and focus on what matters most. The minute you join, you’ll feel it. Not just in the products we build, but in how we show up for each other. Our culture is rooted in integrity, empathy, and shared enthusiasm. We’re in this together, tackling big challenges with bold ideas and genuine care. We look for curious minds and courageous collaborators who bring sun-drenched optimism and drive. Whether you're building smarter solutions, supporting customers, or creating a space where everyone belongs, you’ll do meaningful work with Workmates who’ve got your back. In return, we’ll give you the trust to take risks, the tools to grow, the skills to develop and the support of a company invested in you for the long haul. So, if you want to inspire a brighter work day for everyone, including yourself, you’ve found a match in Workday, and we hope to be a match for you too.

About the Team

Workday Cybersecurity Governance, Risk, Compliance & Trust team builds and sustains trust in Workday's cybersecurity commitments by embedding a cybersecurity-first mindset, delivering cybersecurity assurance and enabling business growth. We act as trusted advisors and change agents across Workday to protect the data of our fellow Workmates and 8000+ customers.
Workday is paving the road forward with how we build, package, deploy and secure our tools and services. We're using the latest technologies to build platforms and services to support our growth while also ensuring the protection of Workday data and infrastructure is paramount.

About the Role

The Principal Cybersecurity Engineer is a key technical leader responsible for defining and driving the strategic direction and implementation of security controls across the organization's infrastructure. This role requires deep technical expertise in infrastructure security and strong coding/automation skills to industrialize compliance and security processes. The Principal Engineer is expected to lead complex projects, mentor junior staff, and significantly influence security governance decisions.

Responsibilities include: 

• Champion the principle of translating security policies directly into testable, automated code to ensure non-bypassable compliance.
• Conceptualize, architect, and champion the adoption of groundbreaking, enterprise-wide security architectures and strategic initiatives that address current and future threats at massive scale.
• Lead applied research and innovation in security, anticipating future threats, evaluating disruptive technologies, and pioneering novel solutions to maintain Workday's security posture.
• Establish, govern, and evolve the highest-level security architectural standards, principles, and patterns across the organization, ensuring their rigorous application and measurable effectiveness.
• Mentor, inspire, and cultivate other engineers and senior technical leaders across Workday; drive a culture of profound security understanding, innovation, and accountability.
• Advise executive leadership (VPs, Directors, C-suite) on critical security risks, strategic investments, and the company's overall security posture. Lead and unify security efforts across disparate engineering organizations on high-impact initiatives.
• Solve the most complex, ambiguous, and high-stakes security challenges that require novel approaches and deep, multi-disciplinary expertise, often with company-wide implications.
• Drive transformative security improvements across Workday’s people, processes, and technology.

About You

Basic Qualifications:

• 10+ years of distinguished, progressive experience in security engineering and architecture, with a demonstrable track record of setting technical vision, leading security architecture for large-scale, complex systems, and driving enterprise-wide security transformations.
• Highly proficient in architecting, implementing, evolving, and securing complex, mission-critical services and infrastructure across multiple major cloud service providers (e.g., AWS, GCP, Azure) and large-scale enterprise environments.
• Pioneering understanding and application of cloud security principles, advanced architectural patterns, and emerging technologies, with a history of defining and implementing industry-leading security controls.
• Strong proficiency in at least one scripting language (e.g., Python, Go, Bash, Ruby) with the ability to develop automation for security operations, configuration management, and compliance.
• Unparalleled expertise and recognized authority in multiple core security domains (e.g., network security, platform hardening, application security, data protection, identity and access management, cryptography) and their strategic interplay in complex, distributed ecosystems.

Other Qualifications:

• Globally recognized industry certifications (e.g., AWS Certified Security - Specialty, Google Professional Cloud Security Engineer, Certified Kubernetes Administrator (CKA), Certified Kubernetes Security Specialist (CKS), CISSP, CISM, CCSP) and/or significant contributions to the security field (e.g., patents, influential open-source projects, published research).
• Authoritative expertise in the secure-by-design architecture of Generative AI and Agentic systems. Proven ability to design secure Retrieval-Augmented Generation (RAG) pipelines, govern multi-agent orchestrations, and establish robust identity, memory, and authorization boundaries for autonomous AI workloads.
• Expertise in advanced threat modeling, designing intrinsically secure systems and building resilient architectures against nation-state level actors or equivalent advanced persistent threats.
• Proven ability to set strategy, drive adoption, and govern sophisticated, secure-by-design automation and Infrastructure as Code (IaC) paradigms across an entire engineering organization.
• Authoritative expertise in defining security strategy and architectural best practices for specialized, large-scale systems such as distributed databases, big data platforms, AI/ML pipelines, and high-performance computing environments.
• Transformational leadership in embedding security deeply and pervasively into the engineering culture and practices (DevSecOps at scale) across a large, agile organization.
• Exceptional ability to articulate a compelling vision, influence and align executive leadership (VPs, C-suite), and inspire large technical teams and entire organizations. Proven ability to represent the company and its security posture externally with authority and credibility.
• Significant contributions to the security industry (e.g., influential publications, standards body participation, development of widely adopted security tools or frameworks).
• Proven ability to innovate and create new security capabilities, services, or products that deliver substantial business value and risk reduction.
• Exceptional communication, presentation, and interpersonal skills with the ability to influence and align senior leadership, diverse engineering teams, and non-technical stakeholders.
• Proven ability to analyze complex technical security problems and propose pragmatic, business-enabling solutions.
• Ability to lead technical security initiatives end-to-end, from conceptual design through successful implementation.
• Exceptional ability to communicate highly technical security risks and compliance requirements into clear, quantitative business terms for executive leadership.

Workday Pay Transparency Statement (For EU Locations Only)

Listed below is the base salary range applicable to this position. Workday pay ranges (and the precise pay offered to the successful candidate) are based on a number of objective criteria such as relevant experience and skills, and educational qualifications, level of responsibility, demands of the role, work location and business need. As a part of the total compensation package, this role may be eligible for the Workday Bonus Plan or a role-specific commission/bonus, as well as annual refresh stock grants awarded by Workday Inc. For more information regarding Workday’s comprehensive benefits, please click here.

Primary Location Base Pay Range: €104,000 EUR - €156,000 EUR Ireland

Our Approach to Flexible Work
 

With Flex Work, we’re combining the best of both worlds: in-person time and remote. Our approach enables our teams to deepen connections, maintain a strong community, and do their best work. We know that flexibility can take shape in many ways, so rather than a number of required days in-office each week, we simply spend at least half (50%) of our time each quarter in the office or in the field with our customers, prospects, and partners (depending on role). This means you'll have the freedom to create a flexible schedule that caters to your business, team, and personal needs, while being intentional to make the most of time spent together. Those in our remote "home office" roles also have the opportunity to come together in our offices for important moments that matter.

Pursuant to applicable Fair Chance law, Workday will consider for employment qualified applicants with arrest and conviction records.

Workday is an Equal Opportunity Employer including individuals with disabilities and protected veterans.

Workday is committed to providing reasonable accommodations for qualified individuals during our application process, in order to perform one or more essential functions of their job, as well as regarding the use of AI tools for employment decision-making to any degree. Please see below for more details including how to request an accommodation as a qualified veteran, due to a disability or for religious reasons, or as otherwise provided under applicable law.

Workday prohibits taking adverse action against any candidate or employee for reporting a possible violation of this policy, requesting one or more work accommodations, exercising a privacy right, or cooperating in an investigation in accordance with applicable law. Any employee who retaliates against a candidate or employee for doing so may be subject to disciplinary action, up to and including termination of employment, to the fullest extent allowable under applicable law.

If you require a reasonable accommodation, you may email [email protected], as far in advance as possible.

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