Senior DevOps / ELK Engineer

A senior Elasticsearch & Observability Engineer role focuses on designing, building, maintaining, and extending the Elastic Stack to drive observability practices across complex environments (Mainframe, Open Systems, and Container platforms). Day-to-day work combines technical execution, platform optimization, cross-team collaboration, continuous delivery governance, and coaching to drive observability adoption.

What You'll DoDesign, build, maintain, support, and extend the Elastic Stack (Beats, Elastic Agents, Logstash, Elasticsearch, Kibana);

Drive Observability practices and design solutions for applications hosted on Mainframe, Open Systems, and Container platforms; Ensure platform performance, indexing efficiency, log retention policies, data lifecycle management, and secure access control; Follow vendor updates, new feature releases, and market trends to continuously evolve the observability platform; Work closely with development teams, architects, and operations teams to ensure the seamless integration of observability and CI/CD knowledge; Establish best practices and governance for application monitoring, and compliance with coding standards/guidelines; Coach and mentor team members, driving the adoption of new observability solutions across the organization; Collaborate with stakeholders to analyze needs, estimate effort for new features, co-create value-driven roadmaps, and report progress to Product Owners/Management; Lead production troubleshooting, root cause analysis (RCA), incident handling (P1/P2), and release execution.

What You'll Need

University degree in Computer Science, Engineering or comparable technical field;5-10 years of hands-on experience in IT environments with focus on observability and production support; Proven track record in Agile delivery models and incident/release management; Solid experience in cross-team coordination, stakeholder communication, and effort estimation; OS & Infrastructure knowledge: Linux and Windows fundamentals (processes, file systems, shell, key metrics); Mainframe knowledge is a plus.

Technical Skills

Strong hands-on expertise with Elastic platform (Beats, Elastic Agents, Logstash, Elasticsearch, Kibana, Open

Telemetry standards);

Observability core concepts: logs, metrics, traces, golden signals, log analysis, dashboard creation, and alerting configuration; Hands-on experience with CI/CD tools (Bitbucket, Git, Jenkins, UCD, Ansible) and automated testing frameworks; Container & Cloud technologies: Docker & Kubernetes; APIs and system integration (REST API fundamentals);

Basic understanding of security controls: authentication, RBAC, access management, and audit compliance; Elasticsearch certification and Microsoft Azure knowledge are a strong plus; Productivity Tools: Jira, Confluence, ServiceNow, MS Office.

Profile & Other Requirements

Professional English C1 (spoken and written) — mandatory; French and/or Dutch is a plus; Strong collaboration & coaching skills — comfortable mentoring peers and interacting with technical and non-technical stakeholders; Proactive mindset with strong ownership, structured problem-solving, and continuous learning attitude; Experience in regulated environments (e.g., Financial Services) is a strong plus; Willingness and availability for on-call support and scheduled overtime activities when required; Must own a valid work permit or EU/Schengen Space nationality to legally work in Portugal; Portugal-based, specifically in Lisbon — hybrid working model (CET alignment required): 2x per week on-site in Oriente station.

Legal: Must own a valid work permit or EU/Schengen Space Nationality to legally work in Portugal.