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1GLOBAL

DevOps Engineer – Developer Experience

1GLOBAL

. Develop internal tools in Go.

Posted 11/12/2026full-timeLisbon • PortugalMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in Go programming for developing internal tools and managing production systems, with a strong focus on observability and GitOps practices. Proficient in mentoring engineers and optimizing platform performance through effective metrics and alerting strategies.

Highest-signal resume keywords
Go Programming LanguageGitLab CI PipelinesKubernetes ExperienceObservability ToolsProduction Systems Ownership

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Go ProgrammingLinux ProficiencyAPI ManagementCrossplane CompositionsHelmKustomizeGitOps WorkflowsMetrics and LoggingDesign Document WritingOn-Call Experience
Soft Skills
MentoringCustomer-Focused DocumentationFeedback Loop Management
Tools & Technologies
GrafanaPrometheusThanosLokiTempoPyroscopeArgo CDOAuth2JWTDocker
Industry Keywords
DevOpsInfrastructure EngineeringPlatform EngineeringObservabilityProduction Systems

Tech Stack

Tools & technologies
DockerGrafanaKubernetesLinuxPrometheusPythonGo

About the role

Key responsibilities & impact
  • Develop internal tools in Go.
  • Own metrics, logs, alerts, and dashboards, and help teams decide what to measure.
  • Build and maintain GitLab CI pipelines and shared templates.
  • Run Argo CD and GitOps workflows across environments.
  • Write Crossplane Compositions on top of XRDs.
  • Manage APIs, OAuth2 clients, and the Governance API.
  • Help shape the internal developer platform.
  • Improve platform observability, including alert quality, performance, and data-transfer optimisation.
  • Take ownership of internal tools and shared pipeline templates.
  • Help migrate remaining deployments to GitOps with Argo CD.

Requirements

What you’ll need
  • 5+ years in DevOps, infrastructure or platform engineering, including ownership of production systems and on-call.
  • Ability to write design documents, reason about trade-offs, and mentor other engineers.
  • Fluent English, written and spoken; CV must be submitted in English.
  • Solid fundamentals in compute, networking, and storage; proficiency with Linux.
  • Go as the main programming language, including production code with tests and releases, and maintained CLIs or services.
  • Experience with observability tools: Grafana, Prometheus, Thanos, Loki, Tempo, Pyroscope, and trusted alerts.
  • Experience with GitLab CI at scale, including shared templates, includes, runners, and pipeline security.
  • Experience with Helm and Kustomize.
  • Kubernetes experience from the workload side, including CRDs and debugging deployments.
  • Treat developers as customers, with clear documentation, feedback loops, and attention to adoption.
  • Nice to have: OpenTelemetry or distributed tracing; Argo CD/GitOps; OAuth2/OIDC, JWTs, and API management; Python; Crossplane Compositions; multi-stage Docker builds and image hygiene; Operators with kubebuilder/controller-runtime; REST API design.

Benefits

Comp & perks
  • Growth Opportunities: Advance your career in one of the fastest growing telecommunications companies, expanding over 50% year-on-year under the leadership of successful tech entrepreneurs.
  • Major Transaction Exposure: Be in the driver’s seat for transactions that will have an impact on the future telco industry.
  • Work with a Talented Team: Collaborate daily with capable and renowned external advisors and talented, driven individuals.
  • Dynamic Work Environment: Thrive in a collaborative, fast-paced workplace where innovation is encouraged.
  • Professional Development: Work alongside industry experts to enhance your skills and knowledge in a cutting-edge field.
  • International Experience: Gain opportunities to work in different 1GLOBAL offices around the world as you grow within the company.
  • Open Communication Culture: Join a supportive and transparent work environment where ideas are heard.
  • Get Things Done Attitude: Work in a results-driven team that values efficiency, creativity, and tangible impact.
  • Equal opportunity, collaborative, dynamic, and international work environment.