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Network Architecture & IT Security
INFRASTRUCTURE critical, uncompromising
We design and operate end-to-end solutions for companies that can't afford downtime. From enterprise networks and advanced security, to SD-WAN, hybrid cloud and 24/7 monitoring. Performance, scalability and control – just the way it should be.
We do not deliver equipment, but architectures that deliver results
to R Networks, we build IT infrastructures that support critical businesses. Our portfolio covers network architecture, cybersecurity and operational end-to-end. Everything is designed for maximum uptime, conformity, scalability and predictable costs.
We don't come with "an equipment offer", but with a clear strategy: we analyze the network, identify risks and implement concrete steps to bring it to enterprise standard. We use top technologies: Cisco, Palo Alto, Meraki, Azure and AWS.
Network architecture & consulting
End-to-end infrastructure analysis, real equipment inventory, L2/L3 diagrams, core-distribution-access network design, zone segmentation, security policies and 12–36 month technical roadmap.
- Existing infrastructure assessment (health-check)
- Architectural blueprint (core, DC, WAN, Wi-Fi, cloud)
- Phased migration plan, without uncontrolled downtime
Controlled implementation & migration
Implementation from scratch or migration from legacy infrastructures, with clear change plans, work windows and plan B. Everything documented, tested and validated.
- Implementation of core/switching, firewalls, Wi-Fi, SD-WAN
- Migrations between ISPs, DCs, cloud, without surprises
- Runbooks and procedures for internal teams
Network & Perimeter Security
Design and implementation of security policies with next-gen firewalls (Cisco, Palo Alto), segmentation, VPN, web filtering, IPS/IDS, micro-segmentation and integration with SIEM.
- HA firewall, security zones, advanced filtering
- IPsec site-to-site, remote access VPN, policies per role
- Audit preparation, journaling and hardening
Enterprise Wi-Fi & robust LAN networks
Enterprise Wi-Fi design and optimization (Meraki, Cisco), with site survey, correctly adjusted channels and powers, smooth roaming, separate SSIDs for production, guests and IoT, plus stable LAN in the back.
- Site survey, coverage plan and sizing
- SSID for production, guest and special equipment
- VLAN segmentation, QoS and clear policies on ports
WAN, SD-WAN & multi-site connectivity
Design and operation for MPLS, VPN, SD-WAN, interconnections between HQ, DC, DR, stores and warehouses. Increasing resilience through redundant links and intelligent routing.
- WAN design for networks with tens/hundreds of locations
- SD-WAN for efficient internet usage
- Latency, jitter, packet loss monitoring
Hybrid cloud & automation
Network integration with cloud (Azure, AWS), secure tunnels, landing zones, access policies, identity integration (AD/AAD), plus configuration and deployment automation.
- IPsec tunnels to Azure/AWS, hybrid networks
- Cloud segmentation and security, NSG/policies
- Scripts and templates for repeatable configurations
Monitoring, NOC & observability
Monitoring platforms (Zabbix, Grafana, etc.), smart alerts, dashboards for technical teams and management, plus clear processes for incident response.
- Design and implementation of monitoring platforms
- Definition of KPIs, SLIs, SLOs on the network and key services
- Incident and escalation playbooks
Audit, documentation & training
Complete infrastructure audit, technical and operational documentation, handover to internal teams and training sessions for administrators and management.
- Network, security and configuration audit
- Diagrams, runbooks, operating procedures
- One-to-one or mixed team training
How we work in an infrastructure project
Each project follows a clear methodology. We do not improvise in production and do not leave behind undocumented infrastructure.
- 1
Analysis & inventory
We collect data about topology, equipment, configurations, ISPs, critical applications and existing risks. The result: a report and a real map of your network.
- 2
Architecture & plan
We define the target architecture: network, security, cloud, monitoring. We establish the implementation stages, work windows and rollback steps.
- 3
Implementation & migration
We implement and migrate in controlled stages, with constant testing, validation and communication. Documentation is updated in real time, not “after the project”.
- 4
Operation, monitoring & evolution
We configure monitoring, alerts, dashboards, operating procedures and propose an optimization roadmap for the next 6–12 months.
Ways to collaborate
You can work with Rizea Networks on a project, subscription or hybrid model. Below are three guiding principles, adapted in practice to your context.
Punctual project
Assessment & design
For organizations that want a clear picture of their current infrastructure and a transformation plan, with concrete deliverables.
- Infrastructure & risk analysis
- L2/L3 diagrams, documentation
- Architectural blueprint and roadmap
- Presentation session with the team
Suitable for the first 4–8 weeks of collaboration.
Request a quoteRecommended
Project + support
Implementation & evolution
The model in which we design, implement, migrate and stay with you for adjustments, optimizations and new initiatives.
- Design, implementation, phased migration
- Security, Wi-Fi, WAN, cloud integration
- Monitoring, alerts & monthly reports
- Quarterly architecture reviews
Ideal for growing companies with multi-directional projects.
Schedule a technical callSubscription
Advisory & ongoing
For internal teams that need an "on call" network architect, without hiring a full-time senior role.
- Monthly consulting hours allocated
- Participation in technical & business meetings
- Reviewing plans, designs, supplier offers
- Mentoring for the internal IT team
Flexible model, adjusted to monthly needs.
Discuss a subscriptionFrequently asked questions
A few quick clarifications. If you don't find the answer here, you can always send a message directly through the contact page.
Do you only work with large companies or also with SMEs / start-ups?
I work with both large organizations (banks, retail, logistics) and smaller companies or start-ups that need serious infrastructure from the start. The difference is in complexity and duration, not in the standard of work.
Do we need to change all the equipment to start a project?
Not necessarily. We start with an analysis, then decide what's worth keeping, what can be reconfigured, and what needs to be replaced. The goal is to maximize what you already have, without sacrificing security or stability.
Can you collaborate with our internal IT team?
Yes. I most often work together with internal teams: I come up with the architecture, design and working "framework", and the internal team can implement some of the tasks, with support and validation from me.
Do you also offer 24/7 support services?
24/7 support can be discussed depending on the project and the criticality of the infrastructure. At a minimum, I can define with you procedures, contacts and a clear escalation model.
How do we determine the costs of an infrastructure project?
After an initial discussion and mini-assessment, I can propose either a fixed cost for the analysis & design phase, or a combined model (project + subscription). I prefer to tie costs to clear deliverables, not just “hours spent”.
Can you also help with technical discussions with providers (ISP, DC, cloud)?
Yes. I can participate in discussions with your providers (ISP, datacenter, cloud, integrators) to clarify technical requirements, SLAs, topologies and responsibilities, so that you have a coherent architecture and well-understood contracts.
It's time to bring your network to the level of your business
If you have critical infrastructure, multiple locations, or new projects in the pipeline, we can build the architecture and operating model for the coming years together. It all starts with a clear technical discussion.