Site Reliability Engineer II — Infra Automation & Cisco

astreya; Ireland; On-site; EUR 80,000 - 110,000; Full time

Job summary

astreya is seeking an experienced Infra Automation Engineer to join our IT Infrastructure Support team. You will ensure reliability and performance of critical security infrastructure, including IP camera fleets, access control, Cisco switch fleet, servers, and cloud environments.

The role blends software engineering with operations to build automation, CMDB, monitoring, and tooling. You will implement IaC with Terraform/Ansible, automate remediation, and support 24x5 on-call, driving resilience

Qualifications

• 6+ years of experience in Infra Automation Engineering, or Infrastructure Engineering.
• Strong proficiency in Python, Bash, and PowerShell; Go for backend services.
• Hands-on experience with IaC tools Terraform, Ansible, Chef, or Puppet, with drift detection and remediation.
• Advanced knowledge of Linux and Windows server environments; Tier 3 troubleshooting.
• Understanding of enterprise networking, Cisco device administration, NETCONF/RESTCONF.

Responsibilities

• Establish and monitor SLIs/SLOs for infrastructure tooling and deployment latency.
• Provide Level 3 expertise for tooling incidents and automate remediation workflows.
• Automate repetitive tasks across managed infrastructure to reduce manual effort.
• Perform root cause analyses and blameless postmortems to improve tooling reliability.
• Develop automated processes to manage NetBox, CMDB, and monitoring data.
• Design and deploy full-stack apps, plugins, and automation scripts for device interaction.
• Create IaC configurations for Windows and Linux servers with drift detection.
• Build end-to-end automation for patching, CIS baselines, and compliance.
• Develop API-driven tools for network config, firmware updates, zero-touch provisioning, and validation.
• Deploy monitoring agents, log collection, and dashboards with SLIs-based alerts.
• Create monitoring exporters for device fleet and clock drift diagnostics.
• Develop automation scripts for intelligent ticket handling and 2-hour SLAs.
• Support security improvements like credential controls and automated backups.
• Participate in 24x5 on-call rotation for infrastructure and security devices.

Skills

Python

Bash

PowerShell

Go

Terraform

Ansible

Chef

Puppet

Linux

Windows Server

Cisco device administration

NETCONF/RESTCONF

Network monitoring

NetBox

Tools

NetBox

Job description

astreya is seeking an experienced Infra Automation Engineer to join our IT Infrastructure Support team. You will ensure reliability and performance of critical security infrastructure, including IP camera fleets, access control, Cisco switch fleet, servers, and cloud environments.

The role blends software engineering with operations to build automation, CMDB, monitoring, and tooling. You will implement IaC with Terraform/Ansible, automate remediation, and support 24x5 on-call, driving resilience