DevOps Engineer

Closer Consulting; Lisboa; Hybrid; EUR 60,000 - 90,000; Full time

Job summary

Closer Consulting in Lisbon is seeking a skilled DevOps professional to design, implement and optimize our ELK/Elastic SIEM and CI/CD pipelines in a hybrid work setup.

You will collaborate with SOC analysts, automate workflows with GitLab CI/CD and Ansible, and ensure secure, scalable infrastructure across Kubernetes/Docker and Linux environments.

Qualifications

• Solid experience designing, deploying, and optimizing ELK/Elastic SIEM.
• Hands-on experience with GitLab CI/CD, Ansible, Linux, and containerization with Kubernetes/Docker.
• Proficiency in Python or Bash to automate SOC workflows.
• Strong understanding of Linux OS, virtualization (VMware/KVM), networking (IPv4/IPv6), and security architecture (Firewalls, IPS).
• Knowledge of SOAR, EDR, IAM concepts (PKI, OTP, Identity Providers, TACACS+).
• Fluent English for global collaboration.
• Self-motivated and able to work in remote or hybrid multicultural teams.

Responsibilities

• Lead design, capacity planning, CI, and evolution of Elastic Stack SIEM.
• Industrialize SOC tools using GitOps, GitLab CI/CD pipelines, Ansible playbooks, and containerized environments (Kubernetes/Docker).
• Interface SIEM/SOAR/EDR with network devices, firewalls, IPS, and identity platforms (PKI, 2FA, Tacacs).
• Handle platform maintenance, capacity management, and complex incident resolution for SOC services.
• Support SOC analysts, optimize detection mechanisms, and drive knowledge-transfer sessions.

Skills

Elastic Stack

ELK SIEM

GitLab CI/CD

Ansible

Linux

Kubernetes

Docker

Python

Bash

Networking basics

IAM concepts

SOAR

EDR

English fluency

Remote/hybrid collaboration

Tools

GitLab

Ansible

VMware

KVM

Docker

Kubernetes

Job description

Mutual Respect, Empathy, Innovation, and Professional Pride. Do you see yourself within these values?

Founded in 2006 with the mission "To Challenge Complexity", Closer Consulting is a Data Science company specializing in Business Intelligence, Advanced Analytics, and Artificial Intelligence.

Developing projects in the most diverse industries – Banking, Telecommunications, Healthcare, Retail, Energy, Insurance, and Aviation, among others –, we have created an environment where the brightest enquiring minds feel at home, providing our people with the means, opportunities and support they need to thrive and innovate.

We are seeking a skilled Devops to take on new challenges in a hybrid work model in Lisbon.

Key Responsibilities

• SIEM Engineering & Architecture: Lead the design, capacity planning, continuous integration, and evolution of our Elastic Stack (ELK) SIEM within the enterprise/OINIS ecosystem.
• Automation & CI/CD: Industrialize SOC tools using GitOps, GitLab CI/CD pipelines, Ansible playbooks, and containerized environments (Kubernetes/Docker).
• Integration & Ingestion: Connect and interface SIEM/SOAR/EDR tools with network devices, firewalls, IPS, and identity platforms (PKI, 2FA, Tacacs).
• Build & Run Operations: Handle high-level platform maintenance, capacity management, and complex incident resolution for SOC services.
• SOC Enablement: Support SOC analysts, optimize detection mechanisms, and drive knowledge-transfer sessions.

What We Are Looking For

• Elastic Stack Expertise: Solid experience designing, deploying, and optimizing ELK / Elastic SIEM.
• DevOps & Infrastructure Skills: Hands-on experience with GitLab CI/CD, Ansible, Linux environments, and containerization (Kubernetes / Docker).
• Strong Scripting: Proficiency in Python, Bash, or similar languages to automate SOC workflows.
• Systems & Networking Knowledge: Deep understanding of Linux OS, virtualized infrastructure (VMware/KVM), network concepts (IPv4/IPv6, routing), and security architecture (Firewalls, IPS).
• Security & Auth Protocols: Functional awareness of SOAR, EDR, and IAM concepts (PKI, OTP, Identity Providers, TACACS+).
• Communication: Fluency in English (essential for collaborating with global operational teams).
• Self-motivated, autonomous, and comfortable working in remote or hybrid multi-cultural teams.

Nice to Have

• Background or experience in the Telecommunications (Telco) industry.
• Familiarity with open-source security ecosystems and detection engineering frameworks (MITRE ATT&CK).

Closer is a company that values diversity and inclusion. We are committed to fostering an environment where everyone is treated with dignity and respect, regardless of race, gender, beliefs, sexual orientation, physical or mental disability, or other personal characteristics.

At Closer, we embrace the unique perspectives and experiences that everyone brings, and we believe that it is a fundamental driver for the success we've achieved.