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Semble

Senior Platform Engineer

Semble

. Improve developer productivity and enablement across the engineering organisation .

Posted 10/6/2026full-timeParis • FranceSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in building and improving internal developer platforms, CI/CD pipelines, and self-service tooling while ensuring high availability and performance of cloud infrastructure. Proficient in mentoring engineers and advocating for best engineering practices across teams.

Highest-signal resume keywords
AWS Services ExpertiseKubernetes EKS ManagementInfrastructure as Code with TerraformCI/CD Pipeline ImprovementStrong Communication Skills

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
GoPythonTypeScriptShell ScriptingTerraformGitOpsArgo CDMongoDBDORA MetricsObservability Tools
Soft Skills
Influencing Technical DirectionMentoring EngineersRunning Training Sessions
Tools & Technologies
DatadogPrometheusGrafanaHelmCI/CD Pipelines
Certifications & Qualifications
ISO 27001 Compliance
Industry Keywords
Developer ExperienceSelf-Service ToolingGolden PathsProduction SystemsMulti-Tenant Environment

Tech Stack

Tools & technologies
AWSCloudEC2FluxGrafanaKubernetesMongoDBPrometheusPythonShell ScriptingTerraformTypeScriptGo

About the role

Key responsibilities & impact
  • Improve developer productivity and enablement across the engineering organisation
  • Build and improve self-service tooling and golden paths, including project templates, CI/CD pipelines, and scaffolding tools
  • Improve onboarding and reduce time to first meaningful production contribution
  • Run developer enablement activities such as office hours, workshops, and lunch-and-learn sessions
  • Write and maintain documentation and runbooks
  • Gather developer experience signals and use them to prioritise the platform roadmap
  • Partner with engineering teams through shadowing, pairing, and tool dogfooding
  • Contribute to the Platform roadmap and observability-as-code initiatives
  • Provide a highly available and performant AWS, Kubernetes EKS, and MongoDB Cloud platform
  • Harden production systems and improve uptime, graceful degradation, and automated recovery
  • Modernise CI/CD pipelines using GitOps practices such as ArgoCD
  • Evolve Terraform-based Infrastructure as Code
  • Establish or improve SLAs and SLOs for core platform infrastructure
  • Work with Security to improve compliance and security posture
  • Identify and deliver infrastructure cost-saving opportunities
  • Make architectural decisions, mentor engineers, and represent Platform priorities in cross-functional discussions

Requirements

What you’ll need
  • 3–5 years of software engineering experience
  • Meaningful experience as a product/application engineer before moving into platform work
  • Experience building or contributing to internal developer platforms, portals, or self-service tooling
  • Experience designing paved roads or golden paths
  • Experience improving CI/CD pipelines for reliability, speed, and developer feedback loops
  • Experience writing documentation, running training sessions, pairing with teams, or advocating for engineering practices
  • Experience using developer experience metrics or frameworks such as DORA, SPACE, or internal DevEx surveys
  • Experience with monitoring and observability tools such as Datadog
  • Proficiency in at least one of Go, Python, TypeScript, or strong shell scripting
  • Strong communication skills and ability to influence technical direction across teams
  • Deep understanding of AWS services including IAM, S3, EC2, EKS, RDS, and Lambda
  • Experience running, maintaining, and troubleshooting production Kubernetes EKS clusters in a multi-tenant environment
  • Proven Infrastructure as Code experience, particularly Terraform, and configuration/deployment tooling such as Helm
  • Hands-on experience with modern GitOps CI/CD tooling such as Argo CD or Flux
  • Experience with MongoDB or similar managed database platforms
  • Experience monitoring and operating production systems using tools such as Datadog, Prometheus, or Grafana
  • Experience operating within a standards-compliant environment such as ISO 27001

Benefits

Comp & perks
  • 36 days off: 25 holidays + bank holidays + 3 extra days (birthday and ‘feel good’ days)
  • Private Health Insurance covering physical and mental health, dental, and optical
  • Hybrid & flexible work environment
  • Latest MacBook (unless you prefer Windows)
  • Choice of equipment to set up a home office ergonomically
  • Autonomy and ownership
  • Flexible ability to work across Europe
  • Barista coffee, tea, fruit, happy hours and activities
  • Fantastic office space with roof terrace and weekly activities