Market-Critical Infrastructure Services: Engineer and support core infrastructureservices essential to distributed financial systems, including LDAP, Kerberos, SSSD,DNS, BIND, PowerDNS, NTP, Chrony, and PTP, with a focus on precision, availability,and operational integrity. Cloud & Hybrid Architecture: Design and operate secure AWS and Azure solutions,including hybrid and multi-cloud architectures that satisfy financial industry requirementsfor resilience, auditability, security, and business continuity.