IT Infrastructure Support Site Reliability Engineer II at Astreya
Dublin, Dublin County, Ireland -
Full Time


Start Date

Immediate

Expiry Date

30 Nov, 26

Salary

0.0

Posted On

01 Sep, 26

Experience

0 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Yes

Skills

Industry

Information Technology & Services

Description

About the job


We are seeking an experienced Infra Automation Engineer to join our IT Infrastructure Support team,responsible for ensuring the reliability, scalability, and performance of critical physical securityinfrastructure and supporting systems. In this role, you will combine software engineering expertise withoperations knowledge to build and maintain automation tools, monitoring systems, and processes thatsupport enterprise-grade server, network, and security device management. You will work closely withcross-functional teams to define and enforce service level objectives, reduce operational toil throughautomation, and drive continuous improvement in system resilience. This position requires 24x5availability with on-call rotation to ensure uninterrupted support for mission-critical infrastructure.Key Responsibilities● Partner with leadership to establish, monitor, and enforce Service Level Indicators (SLIs) andService Level Objectives (SLOs) for infrastructure tooling, including configuration compliancerates, patch success rates, and deployment latency metrics.● Provide Level 3 expertise for tooling-specific incidents, focusing on automating incidentremediation workflows and reducing Mean Time To Repair (MTTR) through intelligentautomation and runbook development.● Identify and automate repetitive manual tasks across managed infrastructure, targeting measurablereductions in operational overhead (e.g., 50% reduction in manual server build time) throughscripting and workflow automation.● Conduct thorough root cause analysis and lead blameless postmortems for all major service-impacting incidents, driving systemic improvements in tooling reliability and infrastructureresilience.● Engineer and maintain automated processes and scripts to populate, update, and synchronize assetmanagement platforms (e.g., NetBox), configuration management databases, and monitoringsystems for internal and external stakeholders.● Design, develop, and deploy full-stack applications, custom plugins, and automation scripts toextend functionality of management and monitoring systems, enabling direct device interaction forconfiguration management.● Develop and maintain fully automated Infrastructure-as-Code configurations for Windows andLinux server roles using tools such as Ansible, Terraform, or Puppet, including drift detection andauto-remediation capabilities.● Build end-to-end automation pipelines for vulnerability patching, security baseline enforcement(CIS benchmarks), and continuous compliance auditing against internal and regulatory standardsfor physical security devices.● Develop API-driven tools for network configuration management, automated firmware updates,pre/post-change validation, and real-time network health monitoring across the device fleet.● Deploy and standardize monitoring agents, centralized log collection systems, and customdashboards with alerts based on critical SLIs (latency, error rate, saturation, traffic) for servers andedge devices.● Build automation scripts for intelligent ticket handling, problem validation, and escalationworkflows within enterprise ticketing systems, ensuring 2-hour initial response SLAs areconsistently met.● Participate in 24x5 on-call rotation to provide timely support for infrastructure systems, securitydevices, and related tooling, ensuring service continuity and rapid incident response.Required Skills● 6+ years of experience in Infra Automation Engineering, or Infrastructure Engineering● Strong proficiency in Python, Bash, and PowerShell for automation scripting, with experience inGo for building high-performance backend services and APIs.

● Hands-on experience with Infrastructure-as-Code tools (Terraform, Ansible, Chef, or Puppet) andconfiguration management practices, including drift detection, version control, and automatedremediation.● Advanced knowledge of Linux and Windows server environments, including Tier 3troubleshooting capabilities, system hardening, and enterprise-scale server management.● Solid understanding of enterprise networking concepts, Cisco device administration, networkautomation protocols (NETCONF/RESTCONF), and experience with network monitoring andflow analysis tools.● Experience implementing and managing monitoring solutions (Prometheus, Grafana, Datadog)and centralized logging platforms (ELK Stack), with ability to create custom dashboards andalerting rules.

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Responsibilities
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