Senior Principal Architect, Cyber Defense Engineering
Job Location:
Chicago, IL - USA
Yearly Salary:
Posted:
Application Deadline:
Vacancies:
Job Summary
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Team Overview
Cyber Defense Engineering is responsible for modernizing TransUnions detection response vulnerability and endpoint capabilities through scalable architecture automation and integrated security platforms.This individual contributor role will act as the principal technical architect for TransUnions Cyber Defense organization owning the reference architecture that underpins modernization across Data Security Posture Management (DSPM) Zero Trust Network Access (ZTNA) Endpoint Strategy and AI enablement.
Reporting the SVP Cyber Defense Engineering this role will partner closely with the AI SOC VulnOps Detection Engineering and Technical Program Manager functions to ensure architectural coherence as Cyber Defense shifts from fragmented tool-centric operations to a unified automation-first agentic security architecture. This is a hybrid position and involves regular performance of job responsibilities virtually as well as in-person at an assigned TU office location for a minimum of two days a week.
Role Overview and Core Responsibilities
Own and evolve the Cyber Defense reference architecture defining the target-state design for how detection response vulnerability management and endpoint telemetry integrate across a unified data and automation layer.
Architect TransUnions Data Security Posture Management (DSPM) capability leading technical evaluation integration design and rollout planning for cloud-native data discovery classification and exposure detection including Wiz DSPM across AWS GCP and hybrid environments.
Define TransUnions Zero Trust Network Access (ZTNA) architecture establishing target-state design for identity-aware least-privilege access to enterprise and cloud workloads in coordination with IAM network security and cloud infrastructure teams.
Own Endpoint Strategy architecture defining the target design for endpoint detection and response exposure management and telemetry integration across the enterprise fleet while rationalizing overlapping endpoint tooling.
Architect the AI enablement layer for Cyber Defense designing agentic and LLM-based capabilities for triage investigation and response including MCP-based agent orchestration and AI SOC platforms that integrate with existing SIEM SOAR and case management systems.
Lead the technical architecture for SIEM and security data platform modernization defining the target design for log ingestion retention and analytics as the organization evaluates consolidation of fragmented logging and detection platforms.
Define reference architecture for the VulnOps operating model ensuring vulnerability discovery prioritization disruption and remediation systems integrate cleanly with the broader Cyber Defense data and automation architecture.
Evaluate emerging security technologies and vendor platforms against TransUnions architecture principles producing build-versus-buy recommendations integration designs and proof-of-concept plans for new capabilities before they reach production.
Establish architecture governance and design standards for Cyber Defense Engineering authoring reference diagrams integration patterns and technical design documents that guide engineering teams building against the architecture.
Required Knowledge and Experiences
15 years of experience in cybersecurity architecture security engineering or related technical roles with demonstrated ownership of enterprise-scale security reference architectures.
Deep technical expertise in cloud security posture and data security tooling with hands-on experience in DSPM CNAPP or related platforms including Wiz across AWS GCP or Azure environments.
Strong understanding of Zero Trust Network Access (ZTNA) architecture and identity-aware access models including experience designing or implementing ZTNA in an enterprise environment.
Hands-on experience with endpoint detection and response (EDR) architecture and tooling including CrowdStrike Falcon and Microsoft Defender for Endpoint with exposure management and fleet-wide telemetry design.
Experience architecting or building AI-enabled or agentic security capabilities including familiarity with LLM-based triage and investigation agents MCP-based tool orchestration or AI SOC platforms.
Strong programming and scripting skills including Python or Go with the ability to build architecture prototypes integration proofs-of-concept and automation scripts independently.
Experience with modern security data platforms and SIEM/log analytics architecture including Splunk and cloud-native log platforms with experience evaluating or leading platform consolidation efforts.
Proven ability to produce clear architecture documentation including reference diagrams integration patterns and technical design decks that engineering teams can build against.
Bachelors degree in Computer Science Computer Engineering Information Security or a related field required; advanced degree preferred.
Required Technical Skills
Expertise designing security reference architectures across DSPM ZTNA endpoint security SIEM SOAR case management vulnerability management and security data platforms.
Hands-on cloud security architecture experience across AWS GCP or Azure including CNAPP DSPM cloud-native data discovery classification and exposure detection capabilities.
Strong endpoint and telemetry architecture expertise including EDR exposure management fleet telemetry alert normalization and tool rationalization.
Ability to design AI-enabled and agentic security workflows using LLM-based triage MCP-based tool orchestration AI SOC platforms integration scripts and automation prototypes.
Strong programming scripting and proof-of-concept development skills including Python or Go with the ability to validate architecture decisions through technical prototypes.
Were also looking for the preferred skills below. Whether you are proficient or could use some brushing up were happy to support your career development and growth in:
Experience architecting vulnerability management platforms or exposure-reduction systems.
Background in Security Operations Center (SOC) technology architecture including SOAR case management and alert normalization platforms.
Experience working in a financial services fintech or similarly regulated enterprise environment.
Familiarity with infrastructure-as-code and cloud-native deployment tooling including Terraform Harness and Kubernetes.
Track record of leading technology evaluations and proof-of-concept programs that informed enterprise security architecture decisions.
Benefits that support every part of your life:
At TransUnion we design benefits to help youfeel well do well and plan wellfrom day one.
For Your Health: Enjoyday-one eligibilityfor medical dental and vision coverage plus supplemental plan options. Spousal domestic partner and other eligible dependent coverage is available on select plans. Choose taxadvantagedHSAandFSAaccounts to make everyday care more affordable.
For Your Protection: Weve got your back withcompanypaid basic life and AD&D optionalvoluntary life and AD&Dfor you and your family andshort and longterm disability. You can also opt into alegal planpet insurance andtravel accident coverage.
For Your Family: Fromadoption assistance and fertility planning coveragetocaregiver support were here for every chapter. AccessDependent Care FSA for possibility of an employer match a andup to 12 weeks of paid parental leavewith eligibility for a thoughtful gradual return.
For Your Future: Build toward whats next with our401(k) with employer matchandEmployee Stock Purchase Plan (ESPP). Tapfinancial wellness resourcescareer coaching and optionallongterm care insuranceto plan confidently.
For You: Grow and recharge withtuition reimbursementflexible time off for exempt employees or paid time off for nonexempt employees up to 12 paid holidays per year commuter benefits employeediscountscharitable gift matching andpaid volunteer time off plus corporate volunteer events that make it easy to give back.
For Your Wellness: Access24/7 supportincluding professionaltherapycoaching and emotional wellbeing programs alongside guided meditation and resources that supportphysical mental social and financial wellness.
We are committed to being a place where diversity is not only present it is embraced. As an equal opportunity employer all qualified applicants will receive consideration for employment without regard to race color religion sex national origin age disability status veteran status genetic information marital status citizenship status sexual orientation gender identity or any other characteristic protected by law. Additionally in accordance with Section 503 of the Rehabilitation Act of 1973 and the Vietnam Era Veterans Readjustment Assistance Act of 1974 TransUnion takes affirmative action to employ and advance in employment qualified individuals with a disability and protected veterans in all levels of employment and develops annual affirmative action plans. Components of TransUnions Affirmative Action Program for individuals with disabilities and protected veterans are available for review to any associate or applicant for employment upon request by contacting .
Qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable law including the Los Angeles County Fair Chance Ordinance for Employers the San Francisco Fair Chance Ordinance Fair Chance Initiative for Hiring Ordinance and the California Fair Chance Act.
Adherence to Company policies sound judgment and trustworthiness working safely communicating respectfully and safeguarding business operations confidential and proprietary information and the Companys reputation are also essential expectations of this position.
TransUnion Overview:
At TransUnion we encourage and are committed to creating a real positive impact and shared sense of purpose within our Workforce for Good which empowers our people to grow innovate and contribute to a better future for our communities and customers. We strive to build an environment where our associates are in the drivers seat of their professional development while having access to help along the way. We recognize that success comes when our associates thrive both professionally and personally; thats why we prioritize work/life flexibility and offer resources for our teams across the globe to collaborate and drive excellence.
Be a part of our Workforce for Good youll work with great people pioneering products and cutting-edge technology.
TransUnions Internal Job Title:
Sr Principal CybersecurityCompany:
TransUnion LLCRequired Experience:
Staff IC
About Company
Company Overview TransUnion is a leading global risk and information solutions provider. Our mission is to help people worldwide access opportunities that lead to a higher quality of life. We accomplish this by delivering solutions that help organizations optimize their risk-based dec ... View more
