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Senior Platform Engineer

il y a 6 heures


Paris, Île-de-France cozycozy Temps plein

Cozycozy is the only platform that gives you real-time access to all available holiday accommodations. Whether you're searching for a hotel, apartment, hostel, villa, or even a treehouse, our service features over 20 million listings from over 100 booking sites. You will find popular options like Airbnb, , Abritel/VRBO and , as well as plenty of specialised marketplaces to explore, such as Agriturismo, Gîtes de France, Onefinestay, Belvilla, Sonder, Travelski, and many others.Experiencing rapid growth, we are now present in over 50 countries in 20 languages, with offices in Paris and Budapest.

About The Role
We are looking for an experienced
Senior Platform Engineer
to take a leading role in operating and evolving the Kubernetes platform that underpins our high-availability, B2C services. This role is central to the reliability, scalability, and security of our production systems.

You will work hands-on with
Kubernetes clusters running across a hybrid environment (bare metal and cloud)
, while contributing to the broader evolution of our internal platform, engineering standards, and operational practices.

The position is an hybrid role based in central
Paris
Your mission
Kubernetes Platform & Infrastructure Operations

  • Own the operation, reliability, and evolution of our Kubernetes clusters in production, across both cloud and on-premises environments.
  • Design, implement, and maintain secure, scalable infrastructure for containerized workloads.
  • Lead cluster lifecycle management: upgrades, capacity planning, performance tuning, and failure recovery.
  • Implement and manage secrets management, networking, and access control in a Kubernetes-first environment.
  • Ensure platform reliability through strong SLO/SLI definitions, alerting, and participation in incident response and postmortems.

Automation, Reliability & Observability

  • Drive automation using Infrastructure as Code (Terraform, Ansible) and GitOps principles.
  • Build and maintain full-stack observability (metrics, logs, traces) for platform and workloads.
  • Continuously improve operational excellence through better alerting, runbooks, and reliability practices inspired by SRE principles.
  • Contribute to capacity, performance, and cost optimization initiatives across the platform.

Platform Evolution & Engineering Standards

  • Contribute to the design and evolution of our hybrid platform architecture, working closely with the Head of Engineering.
  • Help define and maintain platform standards for security, reliability, and infrastructure tooling.
  • Maintain clear, high-quality documentation to support self-service and knowledge sharing across teams.

Developer Enablement & CI/CD

  • Design and maintain CI/CD pipelines (GitLab CI, GitHub, Jenkins) for containerized microservices.
  • Support developer teams by improving deployment workflows and operational tooling.
  • Collaborate on self-service infrastructure initiatives that improve developer productivity, without detracting from core platform responsibilities.

About You

  • 5+ years of experience in Platform Engineering, Infrastructure, SRE, or DevOps roles.
  • Deep, hands-on experience operating Kubernetes in production, including upgrades, scaling, and incident response.
  • Experience managing hybrid environments (cloud + on-prem / bare metal) for high-traffic systems.
  • Strong Infrastructure-as-Code experience (Terraform, Ansible, etc.).
  • Solid understanding of observability, alerting, and reliability engineering.
  • The ability to take ownership of complex systems and improve them incrementally and sustainably.
  • Strong communication skills in English and the ability to collaborate across teams.

Nice to haves are:

  • Experience with database platforms at scale (PostgreSQL, MongoDB).
  • Strong networking fundamentals in high-availability environments.
  • Prior startup experience helping define platform or infrastructure standards.

What We Offer
Join our unique, international team where your work directly powers our hyper-growth expansion across more than 50 countries, positioning Cozycozy at the forefront of global travel innovation

By joining the team, you will influence platform standards and technical roadmap while maintaining hands-

on execution. Additionally, the opportunity to mentor and guide engineers in SRE and DevOps practices.

Why join Cozycozy?
Operate a high-volume B2C service, directly impacting operational reliability and business scalability.

You will be in a stimulating and supportive work environment with an international team (12+ nationalities represented) that is passionate about travel and innovation.

Be a part of a strong entrepreneurial and open-minded culture with numerous projects to imagine and lead.

Enjoy our office in Paris with unlimited coffee, tea, snacks, and drinks.

Competitive salary, Alan health insurance, and Swile card.

Our hiring process

  • HR interview with Mia, our Head of Talent
  • 1:1 interview with the Hiring Manager
  • Technical case exercise with our Engineering stakeholders.
  • Meet the CEO & team

What's Next?
Once we receive your application, we will thoroughly review your CV and cover letter and will return back to you with an update as soon as possible. We invite you to get to know more about us by visiting and follow us on LinkedIn , Instagram, Tiktok and Facebook