Senior Site Reliability Engineer

Responsibilities

Reliability Engineering & Infrastructure Ownership

• Design, build, and operate highly available, scalable, and fault-tolerant infrastructure and platform services
• Own reliability, availability, latency, and operational excellence for critical production systems and services
• Define and maintain service level objectives (SLOs), service level indicators (SLIs), and error budgets across platform systems
• Lead incident response efforts for complex production outages; drive root-cause analysis and long-term remediation actions
• Build resilient systems that gracefully handle failures, traffic spikes, dependency degradation, and regional outages
• Continuously improve system reliability through automation, observability, performance tuning, and capacity planning

Automation & Platform Engineering

• Develop infrastructure automation and self-service tooling to reduce operational toil and improve engineering velocity
• Build and maintain CI/CD pipelines, deployment automation, and release engineering workflows
• Implement infrastructure as code (IaC) practices using tools such as Terraform, CloudFormation, and container orchestration
• Improve developer experience by building reliable internal platforms, operational tooling, and standardized deployment patterns
• Drive adoption of GitOps, immutable infrastructure, and automated remediation patterns

Observability & Operational Excellence

• Design and maintain comprehensive monitoring, logging, tracing, and alerting systems for distributed services
• Establish actionable alerting standards that reduce noise while improving incident detection and response times
• Analyze production trends, system bottlenecks, and failure patterns to proactively prevent incidents
• Lead operational readiness reviews, disaster recovery planning, and game-day exercises
• Improve mean time to detect (MTTD) and mean time to recovery (MTTR) through tooling, automation, and process refinement

Systems Architecture & Scalability

• Participate actively in architecture and infrastructure design reviews
• Propose scalable and reliable platform designs that account for multi-region deployment, redundancy, failover, and security considerations
• Evaluate trade-offs between reliability, scalability, operational complexity, and engineering velocity
• Identify systemic risks and operational gaps before they become production incidents
• Partner with engineering teams to ensure services are designed with operability, observability, and resilience in mind from day one

Security & Compliance

• Approach infrastructure and operational practices with a strong security mindset
• Implement and maintain secure cloud networking, secrets management, IAM policies, and infrastructure hardening standards
• Partner with Security and Compliance teams to ensure systems meet organizational and regulatory requirements
• Drive operational best practices around vulnerability management, patching, and production access controls

End-to-End Ownership & Collaboration

• Scope and estimate infrastructure and reliability initiatives accurately
• Coordinate production rollouts, maintenance events, and reliability improvements across teams
• Communicate operational risks, dependencies, and incident impacts clearly to technical and non-technical stakeholders
• Collaborate closely with Software Engineering, Security, Product, and Operations teams to improve platform reliability and scalability
• Serve as a trusted escalation point during critical production incidents

Mentorship & Technical Leadership

• Mentor junior and mid-level engineers on reliability engineering principles, operational excellence, and infrastructure best practices
• Raise the operational maturity of the engineering organization through documentation, reviews, and technical guidance
• Drive improvements in team standards around observability, incident management, automation, and infrastructure design
• Influence technical decisions through credibility, operational expertise, and strong engineering judgment

Requirements

• Strong foundation in computer science fundamentals: data structures, algorithms, and system design
• Familiarity with building production-grade applications and services using Ruby and Ruby on Rails
• Deep expertise with Linux systems administration and production troubleshooting
• Strong experience operating cloud infrastructure at scale, particularly within AWS environments
• Experience with Kubernetes, container orchestration, and cloud-native infrastructure patterns
• Proficiency with infrastructure as code tools such as Terraform or CloudFormation
• Expertise designing and operating CI/CD pipelines and deployment automation systems
• Deep understanding of observability tooling including Datadog, OpenTelemetry, or similar platforms
• Strong knowledge of distributed systems reliability patterns including redundancy, failover, autoscaling, rate limiting, and graceful degradation
• Experience building automation and operational tooling using languages such as Python, Go, Bash, or Ruby
• Strong understanding of networking fundamentals including DNS, load balancing, TLS, VPNs, firewalls, and service discovery
• Hands-on experience with incident response, root-cause analysis, and production operations in high-availability environments
• Familiarity with SRE methodologies including SLOs, SLIs, error budgets, capacity planning, and operational maturity modeling