DevOps & Infrastructure Engineer

About the Role

We are looking for a DevOps & Infrastructure 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.
• Maintain self-hosted CI/CD infrastructure (runners, deployment servers).
• Optimize rollbacks, blue-green deployments, and zero-downtime strategies

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.
• 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).
• Speak perfect English

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: On-site (Setúbal, Portugal)
• Full-time

Salary 35-45k per year

Relocation Package Available