ph3About This Opportunity /h3pWe’re building an AI-native Internal Developer Platform (IDP) and are hiring multiple Platform Engineers with complementary strengths (CI/CD, Developer Portal Golden Paths, Observability/SRE, DevSecOps, AI Tooling). You don’t need to cover everything, we’re intentionally building a team with different profiles so that, together, we can evolve the full stack of the platform. /ppWe’re building an AI-native Internal Developer Platform (IDP) and are hiring multiple Platform Engineers with complementary strengths (CI/CD, Developer Portal Golden Paths, Observability/SRE, DevSecOps, AI Tooling). You don’t need to cover everything, we’re intentionally building a team with different profiles so that, together, we can evolve the full stack of the platform. /ph3Key Responsibilities /h3ulliBuild and evolve a highly usable, AI-native Internal Developer Platform (IDP) that delivers an exceptional Developer Experience (DX), reduces cognitive load for product teams, and enables fast, reliable delivery. /liliOwn the platform "as a product": contribute to roadmap, prioritize improvements based on developer feedback and telemetry, and drive adoption through great UX and clear value. /liliCollaborate empathetically with developers: obsessively understand pain points and workflows and turn insights into platform features that continuously improve the DX. /liliOptimize and scale GitLab-based CI/CD services to support fast, reliable, and compliant software delivery (runners, templates, pipelines at scale, policy enforcement). /liliLifecycle management (LCM) of the IDP and its components: versioning, upgrades, deprecation strategies, backwards compatibility, reliability, and operational readiness. /liliDesign and own the IDP observability, ensuring developers have clear insights, actionable data, and self-service troubleshooting capabilities (dashboards, alerts, traces, runbooks). /liliDrive cloud-native and GitOps practices using Kubernetes, Helm, Terraform, focusing on repeatability, safety, and developer self-service. /liliImplement secure-by-default workflows, including vulnerability management, pipeline security, supply-chain integrity, and SI-aligned guardrails that keep teams compliant without slowing them down. /liliDevelop and enhance of the IDP Portal (Backstage-based), providing intuitive interfaces, golden paths, documentation surfaces, and self-service capabilities that improve onboarding and day-to-day flow.



/liliIncorporate AI-native engineering patterns into the platform, enabling LLM-assisted development, agentic workflows, and next-generation productivity tooling with pragmatic governance. /liliIntegrate Ericsson application, cloud and infrastructure services into a Platform Engineering ecosystem. /li /ulh3Core Tasks /h3ulliActively attend feedback from developers and observe the IDP through telemetry to identify DX improvement opportunities. /liliDevelop and operate automation, tooling, and backend services that enhance DX, platform reliability, observability, and security. /liliBuild automation workflows using GitLab CI/CD, including reusable templates and paved-road patterns. /liliBuild production-grade observability: dashboards, alerts, traces, health checks, SLIs/SLOs, and operational playbooks using Prometheus/Grafana (and/or OpenTelemetry patterns where applicable). /liliImplement secure development workflows: dependency scanning, policy checks, artifact integrity, SBOM-style practices, SCA/SAST integrations, and guardrails embedded into pipelines. /liliWork closely with PDUs and Security Compliance actors to align the IDP with compliance, security, resilience, and productivity needs - balancing enablement with governance. /liliOperate and evolve Kubernetes workloads and platform services: cluster configuration, networking, scaling, resilience testing, capacity planning, and cost-awareness. /liliExtend and maintain the Backstage-based IDP Portal: build plugins, components, APIs, and developer-friendly UI features; improve discoverability and reduce "time-to-first success". /liliEnable AI-native developer workflows: prompt engineering patterns, LLM evaluation/quality signals, safe-by-default usage, agentic processes, and automation powered by LLMs. /liliTroubleshoot complex issues across CI/CD, cloud infrastructure, integrations, security tooling, and platform UX; contribute to incident response and post-incident learning. /liliContribute to IDP architecture and technical direction: reference architectures, golden paths standards, API contracts, documentation quality, and long-term maintainability.



/li /ulh3Required Skills /h3pbTechnical Skills /b in priority order: /pulliStrong Python and scripting skills (OOP, data structures, automation/tooling, API integrations, testability). /liliExpert knowledge of Git and GitLab CI/CD, including runners, templates, security features, pipeline scaling, and the design of multi-step automation workflows using GitLab environments. /liliStrong observability skills using Prometheus and Grafana (and an understanding of logs/metrics/traces and alert quality). /liliSecure software engineering mindset: vulnerability management, dependency scanning, compliance automation, and guardrails that scale. /liliSolid Kubernetes experience: deployments, networking, scaling, troubleshooting, and production operations. /liliProficiency with Docker and containerization workflows, including image hygiene and supply-chain considerations. /liliFamiliarity with Backstage (or React/JS frameworks) and modern developer portal concepts (self-service, catalog, templates, docs-as-code). /liliPrevious experience as software developer, with exposure to all stages of the SDLC /liliExperience or strong interest in AI-native development models, including agentic programming, LLM-assisted workflows, and practical automation. /liliHands-on exposure to prompt engineering and LLM evaluation (quality signals, regression testing for prompts, workflow safety, cost/performance tradeoffs). /liliFamiliarity with enterprise tooling (JIRA, ARM…) is a plus. /liliFamiliarity with Ericsson tooling (Mimer, NOVA…) is a plus. /li /ulh3Soft Skills Behaviors /h3ulliDeep empathy for developers and a passion for enabling a frictionless, intuitive Developer Experience. /liliCustomer-driven mindset: able to translate pain points into actionable platform improvements and iterate quickly. /liliStrong collaboration across teams, programs and organizations; communicates clearly with both engineers and stakeholders. /liliSecurity-first and observability-first mindset: you build systems that are measurable, supportable, and safe-by-default. /liliCurious about the future of AI and motivated to explore innovative ways to improve software flow responsibly. /liliProactive and accountable, comfortable making engineering decisions in ambiguous environments and learning fast. /liliPassionate about automation and simplification; you reduce toil and build paved roads, not bespoke one-offs. /li /ulh3Join our Team /h3 /p #J-18808-Ljbffr

📌 Platform Engineer (Madrid)
🏢 Ericsson
📍 Madrid