Senior Site Reliability Engineer, Arista Networks

• Bachelor's degree in Computer Science, Engineering, or equivalent professional experience (5+ years in a related infrastructure or systems role)
• Proficiency in one or more programming languages: Go, Python, or bash shell scripting, with the ability to implement medium-complexity automation workflows
• Strong knowledge of Linux or UNIX from both administration and debugging perspectives
• Hands-on experience operating software systems, infrastructure, and complex applications at scale in production environments
• Demonstrated expertise in infrastructure-as-code principles and practices
• Strong problem-solving and software troubleshooting skills with a methodical, analytical approach
• Experience with server provisioning, particularly from storage and networking perspectives
• Proven ability to work collaboratively within cross-functional teams and communicate technical concepts clearly
• Experience with incident response, postmortem analysis, and continuous improvement methodologies
• Knowledge of security best practices in infrastructure and systems design

Desirable

• We are seeking an experienced and analytically-minded Site Reliability Engineer to join our organisation on a permanent, remote basis from Ireland
• In this role, you will be instrumental in building, deploying, and operating critical production systems with a steadfast commitment to scalability, reliability, observability, and security
• You will work collaboratively with cross-functional teams to ensure our infrastructure remains resilient, efficient, and future-ready
• This is an excellent opportunity for a detail-oriented professional who thrives in a dynamic environment and is passionate about solving complex infrastructure challenges
• Design, build, and deploy production systems with a focus on scalability, reliability, observability, and performance, ensuring systems meet stringent security standards
• Develop and maintain comprehensive automation solutions to eliminate toil and streamline operational efficiency across production environments
• Proactively monitor production systems, establish intelligent alerting strategies, and implement automated incident response mechanisms to minimise downtime
• Create and maintain detailed incident response runbooks; conduct thorough postmortem analyses following incidents to identify root causes and prevent recurrence
• Collaborate with software engineering teams to identify and resolve infrastructural bottlenecks, designing innovative solutions that enhance product deployment workflows
• Manage and optimise monitoring infrastructure using industry-standard tools, ensuring comprehensive visibility across all systems
• Plan, communicate, and execute maintenance windows on production systems with minimal disruption to service availability
• Triage platform and infrastructural issues with decisiveness and analytical rigour; engage with third-party vendors and support teams as required
• Deploy new systems and updates in a staged, risk-managed manner, ensuring safe and incremental rollouts
• Survey and adopt best practices in infrastructure and platform management to maintain secure, scalable, and fault-tolerant systems
• Study the design and implementation details of open-source systems to enhance troubleshooting capabilities and accelerate issue resolution
• Work transparently with stakeholders to communicate system status, planned maintenance, and infrastructure improvements