Lead Site Reliability Engineer

Responsibilities

• Own reliability for batch settlement systems - ensure cycle completion windows are met, data integrity is maintained, and failures are detected before they reach downstream consumers
• Build and improve observability for settlement pipelines - dashboards, alerts, and anomaly detection that make system health legible and reduce reliance on tribal knowledge
• Drive automation of operational toil - certificate rotation, environment provisioning, compliance artifact generation, and manual validation steps that currently require human intervention
• Partner with UK-based settlement engineers - acquire domain expertise on Durbin compliance windows, cross-border DCI routing, and acquirer/issuer SLA adherence
• Participate in incident management - respond to settlement failures, drive root cause analysis, and implement durable fixes that prevent recurrence
• Contribute to regulatory readiness - ensure SRE practices produce audit-ready artifacts for SOX and PCI-DSS exams without manual toil
• What Success Looks Like
• Independently validate and troubleshoot settlement cycle failures
• At least two manual settlement operations processes fully automated
• Settlement observability coverage sufficient to detect anomalies before cycle deadlines
• Documented runbooks and severity criteria for all critical settlement failure modes
• The Environment

Requirements

• Professional English fluency
• Bachelor's degree
• At least 6 years of experience in SRE, production operations, or reliability engineering
• Experience in DevOps Engineering (internship experience does not apply)
• 5+ years of experience in at least one of the following: Java, Python, Go
• At least 4 years of experience with Cloud Native technologies (Amazon Web Services, Microsoft Azure, Google Cloud Platform)
• 3+ years of experience with container orchestration services including Docker or Kubernetes
• Experience with Shell or Bash scripting
• At least 3 years of Unix or Linux system administration experience
• Experience developing automation solutions using agentic AI tools (Claude Code, Copilot CLI)
• Troubleshooting and debugging skills across distributed systems
• Familiarity with payments, financial services, or other regulated high-availability domains
• Knowledge or experience of Networking concepts (TCP/DNS/TLS)
• For technical support or questions about Capital One's recruiting process, please send an email to Careers@capitalone.com
• Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site.

Benefits

Additional Information

WeWork Reforma Latino (97001), Mexico, Ciudad de Mexico, Ciudad de Mexico Lead Site Reliability Engineer We're building a Site Reliability Engineering center in Mexico City, and we're hiring a Manager-level Backend Engineer to own the reliability and operational maturity of our settlement platforms. These are batch-critical systems that process every credit and debit transaction across the network. This is a foundational role. You'll be one of the first engineers in CDMX responsible for ensuring settlement cycles complete accurately, on time, and in compliance with SOX and PCI-DSS requirements. You'll work across hybrid infrastructure (on-prem data centers and AWS), partner closely with UK-based engineers, and build the automation and observability that allows Mexico City to operate settlement.

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