Senior Site Reliability Engineer – AUS Region

Nucleus Security; City of Melbourne; On-site; AUD 150,000 - 210,000; Full time

Benefits offered by this job

Health insurance

Equity in startup

Flexible PTO

Holiday schedule

Job summary

Nucleus Security is seeking a Senior Site Reliability Engineer for the AUS region to keep production systems highly available, secure, and scalable. You will manage Kubernetes clusters, CI/CD pipelines, and cloud infrastructure while applying AI-assisted tooling to speed up troubleshooting and incident response.

You will lead automation, observability enhancements, and infrastructure as code, helping drive reliability and rapid delivery across the AUS region.

Qualifications

• 8+ years in SRE/DevOps/Cloud/Infrastructure.
• Clouds: AWS, GCP, Azure, and/or OpenShift.
• Kubernetes, containers, and production orchestration experience.
• Highly available, scalable, secure infra design and ops.
• Infrastructure as Code: Terraform; automation tools like Ansible.
• Scripting in Python or Bash; CI/CD pipelines with GitHub/GitLab/Bitbucket.
• Observability platforms: Prometheus, Grafana, Loki, CloudWatch, etc.
• Incident response, RCA, reliability engineering practices.
• AI-assisted engineering tools in infra/workflows.

Responsibilities

• Maintain reliable, secure, AI-assisted production operations and high availability.
• Build and maintain Kubernetes clusters, CI/CD pipelines, and cloud infrastructure.
• Enhance monitoring, alerting, logging, dashboards, and automated remediation to reduce toil.

Skills

SRE leadership

Kubernetes & containers

Cloud platforms AWS/GCP/Azure

Terraform

Ansible

Python/Bash scripting

CI/CD pipelines

Observability tooling

Incident response

AI-assisted tooling

Tools

Kubernetes

Terraform

Ansible

GitHub/GitLab/Bitbucket CI/CD

Prometheus

Grafana

CloudWatch

OpenShift

Job description

Senior Site Reliability Engineer – AUS Region

Are you looking for more in life than just building another web app? Does upending cyber security resonate with you?We are a growth stage cyber security startup that is paving the way forward for how vulnerability management is run in large enterprise organizations. For our customers, vulnerability management has always been a game of catch up, with limited asset coverage and manual processes. Nucleus’ core goal is to build a fast and scalable platform that solves these problems and many more so that vulnerability management isn’t just possible, it’s easy. We’re looking for a passionate Senior SRE to join our growing team of engineers AUS region.

What You Will Do

• Maintain Reliable, Secure, and AI‑Assisted Production Operations
  Keep production systems highly available, secure, patched, and performant. Use AI‑assisted tooling to accelerate troubleshooting, identify risks, analyze incidents, and improve operational response.

• Build and Maintain Kubernetes, Cloud, and DevOps Infrastructure
  Own and improve Kubernetes clusters, containerized workloads, Infrastructure as Code, CI/CD pipelines, and cloud infrastructure. Leverage AI‑assisted development and automation tools to improve delivery speed, configuration quality, and operational consistency.

• Build Observability and Automation That Reduces Toil
  Improve monitoring, alerting, logging, dashboards, and automated remediation to identify issues earlier and reduce repetitive operational work. Apply AI and intelligent automation to correlate signals, surface anomalies, assist with root‑cause analysis, and automate common SRE workflows.

Expectations of Your Experience

Required Qualifications:

• 8+ years of experience in Site Reliability Engineering, DevOps, Cloud Engineering, Infrastructure Engineering, or related field.

• Strong hands‑on experience with cloud platforms, including AWS, GCP, Azure, and/or OpenShift (OCP).

• Deep experience with Kubernetes, containers, and production container orchestration.

• Experience building and maintaining highly available, scalable, and secure production infrastructure.

• Strong experience with Infrastructure as Code, preferably Terraform, and configuration/automation tools such as Ansible.

• Strong scripting and automation skills using Python, Bash, or similar languages.

• Experience building and maintaining CI/CD pipelines using GitHub, GitLab, Bitbucket, or similar platforms.

• Strong experience with observability and monitoring platforms such as Prometheus, Grafana, Loki, CloudWatch, or equivalent tools.

• Experience with incident response, root‑cause analysis, production troubleshooting, and reliability engineering practices.

• Experience using AI‑assisted engineering tools to improve infrastructure automation, troubleshooting, documentation, code generation, or operational workflows.

• Ability to identify opportunities where AI and automation can reduce operational toil, improve signal detection, and accelerate incident investigation.

• Strong understanding of Linux, networking, security, cloud architecture, and distributed systems.

• Ability to provide technical leadership, mentor engineers, and help drive a culture of automation, reliability, and continuous improvement.

• Must be located in the AUS region and have citizenship in the country you currently reside.

Minimal Requirements

• Minimum 8 years of experience in SRE, DevOps, Cloud Engineering, Infrastructure Engineering, or a related field.

• Strong hands‑on experience with cloud providers like AWS, GCP, Azure, and OpenShift (OCP).

• Strong experience with Kubernetes, Infrastructure as Code (terraform, tofu, CloudFormation), and automation (Python, bash, PowerShell).

• Proven experience supporting highly available production systems, including observability, incident response, troubleshooting, and reliability improvements.

Preferred Qualifications:

• Experience integrating LLMs or AI‑enabled tools into engineering or operational workflows.

• Familiarity with AI‑assisted log analysis, anomaly detection, incident summarization, or root‑cause investigation.

• Experience building internal automation or tooling that combines APIs, scripting, infrastructure data, and AI models.

• Understanding of how to use AI safely in production engineering environments, including data security, access controls, validation, and human review.

Why You Should Be Excited

• 100% company‑paid health, dental, vision, life, and short‑term disability insurance options

• Generous 401k contribution (not a match)

• Flexible PTO + 10 company holidays

• Equity in a high‑growth, VC‑backed startup

• Fantastic company culture

• Work on a truly unique, market‑defining product

Additional Information

At Nucleus we are committed to achieving excellence in our field by combining diversity, collaboration, teamwork, and pride in our work. All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or disability.