Principal Site Reliability Engineer

We are hiring a Staff SRE / Infrastructure Engineer to own the reliability, scalability, and developer experience of the platforms that power our investment, portfolio, and enterprise operations. You will set the technical direction for our hybrid cloud footprint (AWS + Azure +

on-prem), harden production for a regulated buy-side environment, and lead an emerging body of work applying AI to incident response and root-cause analysis. This is a hands-on senior IC role with material influence over architecture, tooling standards, and how engineers ship software.

What you'll do

• Own end-to-end reliability for business-critical services — SLOs, error budgets, capacity planning, DR, and incident command — with a five-nines mindset appropriate to financial services workloads. • Design and evolve our multi-cloud and on-prem infrastructure across AWS, Azure, and colocated environments; drive workload placement, cost, and resilience trade-offs. • Build and maintain the Terraform, Ansible, and CI/CD backbone that lets product and data teams ship safely and quickly; codify golden paths and paved roads. • Advance observability (metrics, logs, traces, profiling) so on-call engineers can localize failures in minutes, not hours; instrument reliability as a first-class product surface. • Lead the buildout of AI-assisted SRE capabilities — LLM-driven triage, incident summarization, runbook synthesis, and automated RCA — with human-in-the-loop guardrails. • Partner with security, data platform,…