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Salary
≈ $104k – $219k per year (Estimated)
Location
In office (Galway)
Seniority
Senior · 6+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 30, 2026. First seen by Alion on Sep 30, 2026. Cisco Systems scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Cisco Systems is an American networking company founded in 1984 by Stanford computer scientists Leonard Bosack and Sandy Lerner, and headquartered in San Jose, California. It is the largest supplier of enterprise networking equipment in the world, building the routers, switches, wireless access points and optical systems that carry traffic across corporate networks, service providers and data centres, together with the software and silicon that run them. The company has diversified heavily into security, observability through Splunk, collaboration with Webex, and AI infrastructure networking, and now earns a growing share of revenue from software subscriptions rather than hardware sales.

Meet the Team

The Cisco Common Platform Services (CCPS) organization is transforming how Cisco delivers software-as-a-service by providing a modern, consistent, and secure platform for all! With demonstrated ability, our global team brings innovative methodologies to building and managing hybrid cloud environments. We focus on platform management services, continuously evaluating infrastructure and operations to ensure efficiency and precision. Our expertise in IaaS and PaaS, combined with repeatable and portable delivery models, enables the rapid and secure deployment of applications.

Within CCPS, the Cloud Software & Solutions (CSS) group designs and develops cloud platform solutions with an emphasis on quality, stability, simplification, user experience, scalability, performance, and portability. We are looking for a senior Operating System Software Engineer to join our team and build scalable cloud-native applications and services.

Your Impact

  • Design and implement robust, high-performance backend services and APIs using Golang.
  • Define, implement, and automate operating-system security and hardening standards, primarily for Linux environments.
  • Establish secure OS baselines using recognized standards, and ensure systems remain compliant throughout their lifecycle.
  • Partner with security and infrastructure teams to manage vulnerabilities, patching, access controls, audit logging, and security remediation.
  • Troubleshoot complex production issues and improve system availability, observability, performance, and reliability.

Minimum Qualifications

  • 6+ years (BS) or 4+ years (MS) of experience in software development, systems engineering, or cloud/platform engineering roles.
  • Strong proficiency in Go and experience building scalable, concurrent backend services and APIs.
  • Deep proficiency in Linux system administration (RHEL/Ubuntu/Win), including advanced shell scripting, performance monitoring, and system-level debugging.
  • Strong understanding of security principles and proven experience in applying security hardening to production systems.
  • Experience leveraging AI tools to improve productivity, automate routine tasks, accelerate problem-solving, and enhance engineering quality.

Preferred Qualifications

  • Experience with Python for scripting, automation, or data processing.
  • Experience with configuration management and infrastructure automation tools such as Ansible, Puppet, Chef, or Terraform.
  • Knowledge of cloud-native technologies, including Docker, Kubernetes, and AWS or GCP.
  • Familiarity with SELinux or AppArmor, identity and access management, security scanning, and compliance automation.
  • Experience with CI/CD pipelines, observability platforms, and agile development methodologies.

CollabHiring

Why Cisco?

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era - and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.

We are Cisco, and our power starts with you.

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