Senior Elasticsearch & Observability Engineer

Location: Lisbon, Portugal — hybrid (CET alignment required) About the role We are looking for a Senior Elasticsearch & Observability Engineer to design, build and evolve the Elastic Stack that underpins observability across a complex, multi-platform landscape — Mainframe, Open Systems and Container platforms. The role combines deep technical execution with platform optimisation, cross-team collaboration and coaching, and you will be a reference point for observability adoption across the organisation. What you'll do Design, build, maintain 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 Own platform performance, indexing efficiency, log retention policies, data lifecycle management and secure access control Track vendor updates, new releases and market trends to continuously evolve the platform Work closely with development, architecture and operations teams to integrate observability into CI/CD practices Establish best practices and governance for application monitoring and compliance with coding standards Coach and mentor team members and drive adoption of new observability solutions Work with stakeholders to analyse needs, estimate effort, co-create roadmaps and report progress to Product Owners and management Lead production troubleshooting, root cause analysis, P1/P2 incident handling and release execution What you'll need University degree in Computer Science, Engineering or a comparable technical field 5–10 years of hands-on experience in IT environments, with a focus on observability and production support Strong hands-on expertise across the Elastic platform (Beats, Elastic Agents, Logstash, Elasticsearch, Kibana) and OpenTelemetry standards Solid command of observability fundamentals: logs, metrics, traces, golden signals, log analysis, dashboard creation and alerting configuration Hands-on experience with CI/CD tooling (Bitbucket, Git, Jenkins, UCD, Ansible) and automated testing frameworks Docker and Kubernetes; REST API fundamentals and system integration Linux and Windows fundamentals: processes, file systems, shell, key metrics Proven track record in Agile delivery and incident/release management Experience in cross-team coordination, stakeholder communication and effort estimation Understanding of security controls: authentication, RBAC, access management and audit compliance Professional English at C1 level, spoken and written (mandatory) Strong plus Elasticsearch certification Microsoft Azure knowledge Mainframe exposure Experience in regulated environments, particularly Financial Services French and/or Dutch Who you are A strong collaborator and coach, comfortable mentoring peers and engaging both technical and non-technical stakeholders Proactive, with strong ownership and a structured approach to problem solving Committed to continuous learning Available for on-call support and scheduled overtime when required Legal requirement: you must hold a valid work permit or EU/Schengen nationality to work legally in Portugal. What can you expect from us? Mind-blowing workplace culture. You will be integrated in a professional, dynamic and collaborative team. 100% Remote opportunities We want you to have the flexibility to work where you feel most comfortable and productive. International Career You can expect professional growth and to be connect with the world. We are represented in Portugal, Belgium, Luxembourg, and Denmark. And with projects in many other countries: Netherlands, Luxembourg, Singapore and in the United States of America (and a lot more is coming…) Extra Benefits & Perks If you wish to work with us and you are outside European Union (good news…) we are a Tech Visa Company, We will help! As a plus, we provide Health and Life Insurance.