[SKALEET]
Skaleet builds the core banking engine behind banks and neobanks: accounts, payments, cards. Our platform runs in production for 30+ regulated financial institutions in 15 countries, including Crédit Agricole, Caisse d'Epargne and Nirio (FDJ United), and manages over 10 million accounts.
In 2026, Euromoney named Skaleet the best banking solution in Europe. Our revenue grew by 40% in 2025. We are about 100 people, based in Boulogne-Billancourt.
Banks use Skaleet to launch new activities and countries, as Crédit Agricole did in Germany, or to replace legacy systems they can no longer evolve. Our data is hosted in France and Germany: built in Europe, for Europe.
Our infrastructure is critical: every client runs on its own dedicated platform, which means 50+ production environments to operate, each with its own specificities.
[Job Description]
💡 Context
Our strategic infrastructure project: migrating our VMware/vSphere estate (~450 VMs across 5 datacenters) to Kubernetes, without interrupting the banking services that run on it.
You will join the Infrastructure team, within the Platform department, as a senior SRE and technical referent, and play a leading role in this migration.
Beyond the migration, you will own the most complex infrastructure topics across all client platforms: high-availability architectures, operations as code, and reliability practices (SLOs, observability, incident management, post-mortems) shared with the team and the development squads. You will arbitrate architecture decisions on your scope, mentor junior and mid-level engineers, and reduce recurring operational load through automation rather than manual work.
👉 Your future missions
VMware → Kubernetes migration & high availability
Drive the migration from VMware/vSphere (~450 VMs, 5 datacenters) to Kubernetes (3 clusters, ~20 nodes).
Design and implement high-availability architectures and infrastructure extension projects.
Infrastructure as Code
Industrialize operations with Terraform and Ansible: provisioning, deployments, system updates, platform provisioning.
Eliminate recurring manual operations across the board.
Reliability & service levels
Guarantee availability, capacity and performance of client platforms; own SLA/SLO commitments.
Define SLOs with the development teams and arbitrate reliability vs. delivery speed on that basis.
Work as a partner of the development squads, not as a ticket desk: co-build the path to production and help developers become autonomous in running their services.
Observability & incident management
Improve metrics, logs, traces, dashboards and actionable alerting, with measurable noise reduction.
Act as Incident Commander on major incidents; drive resolution, lead blameless post-mortems and remediation plans.
Level 3 support
Serve as the final escalation point for infrastructure issues raised by support, development and project teams.
Surface recurring root causes upstream instead of firefighting case by case.
Security, compliance & leadership
Integrate banking-sector security and compliance requirements into infrastructure choices, with the CISO.
Document architectures and runbooks; mentor junior and mid-level engineers; lead technical reviews.
Contribute to technical hiring for the team.
⚠️ On-call required. Scheduled interventions outside business hours for client-impacting operations (migrations, cutovers, maintenance).
🛠️ Tech stack
Infrastructure (on-premise): OVH · VMware/vSphere (~450 VMs, 5 DCs) · Kubernetes with Helm (3 clusters, ~20 nodes)
Automation: Terraform · Ansible · Rundeck · GitLab CI
System: Debian · Apache · PHP 8.x · MySQL/MariaDB · PostgreSQL · NodeJS
Observability: ELK stack (Elasticsearch, Kibana) · status page · alerting
High availability: RabbitMQ · Vault · ProxySQL · Redis · load balancing & failover
Network: IPsec (libreswan) · OpenVPN · nftables · Debian routers & VLAN · OVH vRack
Backup: Veeam
[Desired Profile]
✨ You are a great match if:
Master's degree from a top-tier…