Overview
GreatLab Warrington, England, United Kingdom
We are looking for a DevOps Engineer to manage and secure our in-house infrastructure, automate deployments, and optimise our CI/CD pipeline. You will be responsible for server management, security enforcement, networking, and infrastructure automation.
Responsibilities
* Server & Infrastructure Management
* Manage and maintain Linux-based servers (Ubuntu, Debian, CentOS).
* Deploy and monitor on-premises servers, networking, and power systems.
* Implement high availability (HA) and failover strategies for critical services.
* Optimize server performance, storage, and backups.
* Maintain and scale a hybrid cloud setup (AWS, on-prem, and private cloud infrastructure).
* CI/CD & Code Deployment Automation
* Build and maintain CI/CD pipelines using GitHub Actions, GitLab CI/CD, or Jenkins.
* Automate software deployments for web applications and internal tools.
* Security & Compliance
* Set up firewalls, access controls, and server hardening.
* Enforce SSH key-based authentication & disable root login.
* Implement intrusion detection (Snort, Suricata) & fail2ban for SSH security.
* Monitor system logs for suspicious activity and conduct regular security audits.
* Manage encrypted storage, VPN access (WireGuard/Tailscale), and private Git hosting.
* Authentication management w/ ensuring 2FA & other security improvement opportunities
* Networking & Office IT Security
* Configure VLANs to separate office traffic from DevOps infrastructure.
* Server setup basics required & will have consulting advice
* Set up Wi-Fi segmentation (secure internal network vs. general office Wi-Fi).
* Implement real-time power monitoring (Smart PDUs, Energy Meter at the breaker panel).
* Monitoring, Backups & Disaster Recovery
* Set up monitoring for servers and the network.
* Implement automated alerts (Slack, email) for CPU spikes, outages, and security threats.
* Maintain regular backups (AWS S3, on-prem NAS, offsite redundancy).
* Plan and test disaster recovery scenarios to minimise downtime.
What You’ll Need (Requirements)
* 1+ years of experience in DevOps, Infrastructure, or System Administration.
* 1+ years Commercial AWS experience
* Strong experience with Linux (Ubuntu, Debian, CentOS) server management.
* Experience with CI/CD tools (GitHub Actions, GitLab CI, Jenkins, or similar).
* Knowledge of networking (firewalls, VLANs, VPNs, BGP, routing).
* Familiarity with security best practices (SSH hardening, IDS/IPS, access control).
* Experience managing Docker, Kubernetes, or containerized environments.
* Comfortable managing physical hardware (rack-mounted servers, PDUs, UPS systems).
* Understanding of database administration (PostgreSQL, MySQL, or MongoDB).
* Experience with monitoring/logging tools (Grafana, Prometheus, ELK stack).
Nice to Have (Preferred Skills)
* Experience working with Hybrid Cloud (AWS, Proxmox, OpenStack, etc.).
* Hands-on experience with hardware setup & data center operations.
* Knowledge of DDoS protection, reverse proxies (Cloudflare, HAProxy, Traefik).
* Experience with energy monitoring & infrastructure scaling.
What We Offer
* A chance to build and manage an on-prem infrastructure from scratch.
* The opportunity to own security, networking, and server automation.
* A hands-on role in scaling our infrastructure and hybrid cloud setup.
* Work with a team that values security, automation, and fast deployments.
* Competitive salary and the chance to grow with the company.
* Location: Warrington, UK
* Full-time
* https://www.greatlab.io/
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