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 NeedUniversity 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 SkillsStrong hands-on expertise with Elastic platform (Beats, Elastic Agents, Logstash, Elasticsearch, Kibana, OpenTelemetry 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 RequirementsProfessional 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.