Principal Systems Management & Engineering
$170k - $300kCitigroup Inc
Citi, a leading global bank with approximately 200 million customer accounts in over 160 countries, provides a broad range of financial products and services to consumers, corporations, governments, and institutions. The bank's Enterprise Operations & Technology division underpins these offerings, delivering secure, reliable, and efficient technology solutions that are foundational to managing global resources, ensuring safety, and providing a first-class customer experience. Fostering a culture of diversity and inclusion, Citi is committed to a workforce that represents the clients it serves. The company values respect, promotes individuals based on merit, and ensures opportunities for personal development are widely available. This is a rare opportunity to lead a globally distributed engineering team at the forefront of mission‑critical, High Availability infrastructure. As a Head of High Availability Systems Engineering , you will own the strategy, stability, and evolution of a large‑scale z/TPF, Stratus, and I‑Series estate that underpins enterprise‑grade operations around the clock. Foster a culture of engineering excellence, continuous learning, and accountability across geographically distributed teams
Set clear performance expectations and develop career pathways for senior technical contributors
Platform Engineering & System Management
Oversee the installation, configuration, maintenance, and upgrades of z/TPF, Stratus, and I‑Series software environments
Drive end‑to‑end lifecycle management of complex, large‑scale HA infrastructure — from hardware components to operating systems and related software
Administer and optimize the IBM Security Portal, ensuring robust vulnerability management practices are embedded across the estate
Performance Optimization & Capacity Planning
Proactively monitor system performance, identify bottlenecks, and architect solutions that maximize throughput and reliability
Lead capacity planning initiatives, translating business growth projections into actionable infrastructure roadmaps
Implement performance tuning strategies across z/TPF, VOS, and IOS environments
Champion comprehensive security policies and procedures that protect sensitive data and preserve system integrity
Maintain deep familiarity with mainframe security tooling, including Crypto, FICON, and platform‑specific security utilities
Ensure compliance with enterprise security standards and regulatory requirements
Lead continuity‑of‑business planning, testing, and execution to ensure zero‑compromise availability for critical systems
Cross‑Functional Collaboration & Process Improvement
Partner closely with application support, database administration, and network engineering teams to deliver integrated, resilient solutions
Identify and implement process improvements that drive operational efficiency, reduce toil, and elevate engineering standards
Deep, hands‑on expertise in z/TPF Administration , including system programming, tuning, and troubleshooting at enterprise scale
Proficiency with Stratus VOS and I‑Series IOS operating systems and associated toolsets
Strong working knowledge of mainframe hardware and software ecosystems, including Crypto , FICON , and platform utilities
Demonstrated experience with IBM Security Portal and enterprise vulnerability management frameworks
Proven track record of leading and scaling global, senior‑level engineering teams in high‑stakes environments
Strategic thinker who balances long‑term platform vision with day‑to‑day operational excellence
15+ years of overall experience in systems engineering or infrastructure roles
Demonstrated experience managing global engineering teams in a senior leadership capacity
Proven expertise in High Availability systems design, disaster recovery, and business continuity planning
Bachelor’s degree/University degree or equivalent experience
Citi offers competitive employee benefits, including medical, dental and vision coverage; life, accident, and disability insurance; Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays.
Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.
If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity, review Accessibility at Citi. View Citi’s EEO Policy Statement and the Know Your Rights poster.
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