Cloud infrastructure: managed services, performance & governance
Operate, optimise, and secure your cloud and on-premise infrastructures with dedicated experts. From 24/7 managed services to FinOps cost control, application performance, and cloud compliance, Castelis supports you across the full lifecycle of your environments.
Certified multi-cloud
SLA & 24/7 monitoring
FinOps & compliance
/
Controlled cloud, from operations to optimisation
Our teams operate your cloud and on-premise environments with clear SLAs, proven processes, and transparent management based on measurable KPIs. Managed services, performance, costs, and compliance: we cover all infrastructure challenges with an integrated approach.
Whether you are starting your cloud migration or looking to stabilise and optimise existing environments, we tailor our support to your maturity level and operational constraints.
/
Cloud compliance & governance
Align your cloud environments with GDPR, ISO 27001, and NIST standards. Cloud governance, risk management, ISO compliance audit, and technical documentation: we structure your practices to withstand audits and evolve over time.
- Cloud governance & audit
- GDPR & ISO compliance
- Technical documentation
/
Cloud & on-premise managed services 24/7
Outsource your infrastructure operations to experts committed to clear SLAs. Continuous monitoring, incident management, patching, RUN governance, and backup: we ensure the availability, security, and performance of your cloud and on-premise environments.
- Supervision & 24/7 monitoring
- Incident management & patching
- Backup & disaster recovery
/
Web & application performance
Analyse, measure, and optimise the performance of your applications and digital platforms. Browser monitoring, load testing, log management, automated QA, and APM management: we guarantee speed, reliability, and scalability for a flawless user experience.
- Load testing & monitoring
- Manual & automated QA
- APM & log management
/
FinOps: take back control of your cloud costs
Adopt a FinOps approach to manage your cloud spending with transparency. Budget audit, resource optimisation, FinOps governance, and KPI reporting: we align finance, IT, and business teams for lasting cost control on Azure, AWS, and GCP.
- Cost optimisation & allocation
- FinOps governance
- KPI reporting & budget alerts
/ Certified cloud partners
Certified Azure, AWS, and Google Cloud partners, we leverage the hyperscaler ecosystem and leading technology vendors to design, operate, and optimise your cloud infrastructures according to market best practices.
/
FAQ – Managed services, FinOps, performance, compliance
Managed services: a full operational commitment
Monitoring only covers watching and alerting. Managed services cover the entire RUN cycle: monitoring, incident management, patching, backup, governance, and reporting. It is a contractual commitment with defined SLAs, a dedicated point of contact, and an organisation structured around your constraints.
We scope the perimeter to your needs, in business hours or 24/7 depending on the criticality of your environments.
As soon as your cloud costs exceed your forecasts
FinOps can be deployed from the start of a cloud migration or in existing environments. It is particularly relevant when cloud spending is difficult to attribute by team or project, or when budgets are regularly exceeded without clear explanation.
We adapt the approach to your maturity level, involving finance, IT, and business teams for effective and lasting governance.
Your provider’s certification does not cover your usage
No. Your cloud provider’s certification covers their infrastructure, not how you configure your resources, manage access, or process data. That responsibility falls entirely on you.
This is precisely what we audit: configuration, access policies, data management, and documentation to guarantee real, auditable compliance.
Optimise before rebuilding
In most cases, a performance audit identifies quick wins without a full rebuild: database query optimisation, cache configuration, CDN deployment, and monitoring improvement. We target the critical bottlenecks identified for measurable impact.
Our APM tools then provide continuous monitoring to maintain performance levels over time.
Let's talk about your infrastructure
