Senior Site Reliability Engineer (SRE) / Unix

Morgan Hunt UK Ltd; London; Remote; GBP 125,000 - 150,000; Part time

Job summary

A recruitment agency is seeking an experienced Site Reliability Engineer (SRE)/Unix Infrastructure Engineer to support critical infrastructure services. This role involves optimizing services in RHEL, managing AWS environments, and enhancing automation processes. Applicants should have strong experience in RHEL administration, containerization tools like Docker and Kubernetes, and cloud technologies. The position allows for remote work with occasional travel.

Qualifications

• Strong experience in administration of RHEL systems.
• Proficient in shell scripting for automation tasks.
• Hands-on experience with container orchestration tools.

Responsibilities

• Support deployment and migration of services to RHEL.
• Enhance existing UNIX infrastructure.
• Drive security improvements for infrastructure.

Skills

RHEL 7/8/9 administration

Shell scripting (Bash/Perl)

Docker

Kubernetes

AWS (VPC, EC2, S3)

Prometheus

Grafana

Tools

Ansible Automation

Red Hat Satellite

Terraform

Job description

Location: Remote, with occasional travel to Scotland
Employment Type: 6 month Contract
Rate: £550 per day, Outside of IR35

Role Overview

Morgan Hunt are seeking an experienced Site Reliability Engineer (SRE) / Unix Infrastructure Engineer to support the deployment, migration, and optimisation of critical infrastructure services. The role involves ensuring high availability, disaster recovery readiness, and automation-driven improvements across RHEL, Oracle DB, Kubernetes, and AWS environments.

Key ResponsibilitiesInfrastructure & Deployment

• Support migration and deployment of services to RHEL 8/9.

• Maintain and enhance UNIX infrastructure (existing & new deployments).

• Optimise existing services & infrastructure for performance and security.

• Support Ansible Automation Platform for OS/application deployments.

• Manage Oracle Database 19c on Oracle Linux (KVM).

Disaster Recovery & Automation

• Strengthen automation for disaster recovery (DR) activities.

• Work towards Recovery Time Objective (RTO) of 2hrs & Recovery Point Objective (RPO) of zero.

• Conduct DR testing (3 scheduled tests per financial year, potentially outside core hours).

• Maintain CommVault backup administration (Oracle DB, RHEL, MongoDB).

Monitoring & Observability

• Support logging & observability stacks (InfluxDB, Grafana, Prometheus, Nagios).

• Enhance monitoring via REST APIs, time-series databases, and full-stack tools (TICK, Elasticsearch, OpenSearch).

• Promote SLO/SLI measurement & tracking.

Security & Compliance

• Drive security improvements & vulnerability remediation.

• Perform regular RHEL/KVM patching & hardening.

• Manage Red Hat Satellite & Ansible Automation Platform.

• Support Palo Alto XDR across the estate.

Cloud & DevOps Integration

• Work with AWS services (VPC, EC2, S3, NLB) using IaC (Terraform/CDK).

• Support CI/CD pipelines (Git, Ansible, Git runners).

• Administer containerised environments (Docker, Kubernetes, OpenShift).

Essential Skills & Experience

• Unix/Linux:

  • Strong RHEL 7/8/9 administration.

  • Red Hat Satellite & Ansible Automation.

  • Shell scripting (Bash/Perl).

  • Load balancers (HAProxy, Keepalived).

• Containers & Orchestration:

  • Docker, Kubernetes, OpenShift.

• Cloud & IaC:

  • AWS (VPC, EC2, S3, NLB).

  • Terraform/CDK for automation.

• Monitoring & Observability:

  • Prometheus, Grafana, InfluxDB, Nagios.

  • Full-stack admin (Elasticsearch, Fluentd, OpenSearch).

• Methodologies:

  • Agile (Scrum/Kanban), CI/CD, IaC principles.

  • Risk-aware, customer-focused, proactive problem-solving.

Morgan Hunt is a multi-award-winning recruitment business for interim, contract and temporary recruitment and acts as an Employment Agency in relation to permanent vacancies. Morgan Hunt is an equal opportunities employer. Job suitability is assessed on merit in accordance with the individual's skills, qualifications and abilities to perform the relevant duties required in a particular role.