Remote Linux Platform Engineer – Networking & Automation

Colt Technology Services; Greater London; Remote; GBP 65.000 - 90.000; Vollzeit

Benefits dieser Stelle

Flexible working hours

Work from home

Mentor program

Education opportunities

Zusammenfassung

Colt Technology Services seeks an Infrastructure Engineer to design, build, automate and operate secure Linux-based infrastructure powering critical telecommunications network services.

You will work across Platform Engineering, Network, Security and Operations, deploying platforms using RHEL/Ubuntu, implementing automation, monitoring and high-availability controls, and driving lifecycle improvements across hundreds of Linux systems.

Qualifikationen

• Typically three to five years of experience in Linux administration or infrastructure engineering within enterprise or service-provider environments.
• Strong practical experience with enterprise Linux distributions, particularly RHEL and Ubuntu; CentOS or successor-compatible distributions is beneficial.
• Experience with Ansible, Bash or Python scripting, configuration management and infrastructure‑as‑code principles.
• Working knowledge of TCP/IP, IPv4 and IPv6, DNS, routing principles and BGP.
• Experience implementing monitoring, logging, alerting, backup, recovery and high-availability controls.
• Understanding of platform hardening, vulnerability remediation and CIS or ISO-aligned security practices.
• Strong troubleshooting, documentation, communication and teamwork capability.

Aufgaben

• Build, configure, test and maintain Linux platforms using distributions such as RHEL and Ubuntu.
• Implement infrastructure from approved architecture, high-level designs, low-level designs and engineering standards.
• Execute platform deployments, upgrades, migrations, patching and decommissioning activities.
• Maintain accurate configuration, asset, dependency and lifecycle records.
• Participate in design reviews and identify practical improvements to platform standards and implementation approaches.
• Deploy and maintain DNS platforms and support resolution, delegation, availability and security troubleshooting.
• Build and maintain Linux hosts supporting route reflectors and other routing control-plane services under approved network designs.
• Deploy and support authentication, authorisation, accounting, identity and directory services, including Red Hat and Oracle LDAP environments.
• Implement and maintain network observability, telemetry, logging, monitoring and network-management platforms.
• Develop and maintain automation using Ansible, Bash or Python and infrastructure-as-code principles.
• Identify repetitive operational activities and implement approved automation to reduce manual effort and error.
• Maintain consistent, reusable configuration and build standards across environments.
• Monitor platform service health, performance, capacity, availability and resilience.
• Implement health checks, dashboards, logs and actionable alerts as part of each platform deployment.
• Investigate incidents and alerts, contribute to root‑cause analysis and implement agreed corrective actions.
• Test backup, restoration, failover and recovery procedures and record the results.
• Support platform currency, vulnerability remediation, upgrade and obsolescence plans.
• Implement and validate platform hardening in line with approved standards, including CIS-aligned controls where applicable.
• Maintain vulnerability remediation, access controls, secrets, keys, certificates and centralised audit logging.
• Produce and maintain evidence for internal controls, audit and compliance activities.
• Support security investigations and preserve relevant operational and forensic evidence.
• Escalate unsupported, end‑of‑life or non‑compliant components and support agreed remediation plans.
• Work with Network Engineering, Security, Infrastructure, Architecture, Operations and application teams.
• Produce and maintain implementation records, technical documentation, support models and operational runbooks.
• Share knowledge, contribute to team capability and progressively take ownership of defined services or technical components.
• Participate in the Infrastructure Operations on-call rota supporting priority incidents.

Kenntnisse

Linux administration

Infrastructure engineering

Ansible

Bash scripting

Python scripting

DNS

Networking

Ausbildung

Degree in Computer Science or Network Engineering

RHCSA

LFCS

Tools

Ansible

Bash

Python

Linux

Terraform

KVM

Jobbeschreibung

Colt Technology Services seeks an Infrastructure Engineer to design, build, automate and operate secure Linux-based infrastructure powering critical telecommunications network services.

You will work across Platform Engineering, Network, Security and Operations, deploying platforms using RHEL/Ubuntu, implementing automation, monitoring and high-availability controls, and driving lifecycle improvements across hundreds of Linux systems.