Mainframe
Modernise without limits: scalability, resilience, sovereignty and security to fully leverage a reliable, certified and high-performance mainframe environment.
Our mainframe services
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Mainframe-as-a-Service
A IBM platform, operated 24/7 in our sovereign Data Centers, combined with expert managed services for your critical workloads.
- Sovereign hosting of your z/OS, z/VM, z/VSE, Linux on Z and iSeries environments.
- Reduction of operational risk through end-to-end, continuous management.
- Segmentation, access control, encryption, system resilience and proactive compliance management (NIS2, ISO, GDPR).
- Guaranteed service continuity, with a zero RPO enabled by synchronous data replication, validated DRPs and a geo-resilient architecture.
- Optimisation of performance and costs (tuning, capacity planning, MSU optimisation).
- Management and operation of production workloads and applications through a dedicated service centre.
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Application Services
Maintenance and modernisation of critical applications to maximise their value and enable seamless hybrid integration.
- Corrective, adaptive and preventive maintenance of your critical applications.
- Seamless mainframe modernisation (refactoring, AI-driven optimisation, green coding) to improve performance and reduce costs.
- Accelerate your digital transformation without large-scale rewrites, through API exposure and integration with cloud and modern applications.
- Use of modern tools, CI/CD pipelines and automation to enhance productivity and accelerate delivery cycles.
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Roadmap Services
Driving mainframe transformation to secure your evolution roadmap and maximise value creation.
- Analysis of your application landscape and legacy environments to identify risks, hidden costs and optimisation opportunities.
- Comprehensive assessment of your information system, including interdependencies and performance levels.
- Definition of a pragmatic roadmap aligned with business priorities, combining quick wins with a long-term vision.
- Supporting your teams and stakeholders to ensure successful execution, mitigate risks and secure organisational buy-in at every stage.
Real-world challenges
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Ageing legacy languages and systems.
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Ageing mainframe workforce and talent shortage.
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The need to reduce costs while maintaining high performance.
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Protection of critical data and applications.
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Modernisation to integrate with hybrid and cloud architectures.
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Critical systems adding complexity to service continuity.
Concrete solutions to address your needs
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A leading market reference
KEYES stands as a key mainframe player in Belgium, with over 300 specialists, 40 years of experience and proven methodologies to manage, modernise and optimise critical environments.
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A sovereign platform
Your mainframe infrastructure is hosted in Belgium, within our sovereign, geo-resilient, interconnected and synchronised Data Center campuses, ensuring availability, security and compliance of sensitive data.
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An end-to-end approach
Our experts manage your mainframe, distributed and cloud environments through a unified SLA, eliminating silos and ensuring seamless management of your hybrid information system.
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An internal training programme
The zAcademy trains new generations of mainframe engineers and developers through a structured programme, combining intergenerational knowledge transfer with the integration of emerging technologies (AI, cloud…).
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Cost optimisation
We analyse, rationalise and optimise your mainframe consumption to reduce software licensing costs and maximise infrastructure ROI.
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Seamless integration
We leverage the expertise of our specialists (infrastructure, applications, cybersecurity) to design consistent, robust and rapidly deployable solutions tailored to your business challenges.
