Enforce holistic security and operability: secure SDLC (threat modeling, SAST/DAST/IAST, dependency scanning/SBOM, container/image signing), secrets hygiene and KMS, WAF/DDoS protections, runtime hardening, vulnerability management/patch SLAs, pen tests, incident response, and tabletop exercises. Set architecture strategy and reference patterns for resilient, high throughput platforms bridging post trade/ledgering with institutional digital assets, owning reliability, performance, and regulatory compliance end to end.