E01
Infrastructure and systems architecture
Design and progressive modernisation of Linux, virtualised, containerised and storage platforms, with availability and recovery built around real operating constraints.
Independent infrastructure engineering · European Union
Critical infrastructure. Under control.
Ironitia designs, secures and transforms complex IT and telecom infrastructure for organisations that cannot afford recurring failures, technical debt or operational uncertainty.
40+ years in IT
Telecom operator experience
Networks, systems, databases and security
Remote across Europe
Based in the European Union
Operational risk
When infrastructure becomes a business risk
Complexity is not a problem by itself. It becomes one when nobody can explain the system, predict its failure modes or change it without putting production at risk.
Recurring incidents with no clearly established root cause
An architecture that has become too complex to operate safely
Infrastructure that is incomplete, outdated or undocumented
Critical knowledge concentrated in a single person
A fragile network or telecom platform
A high-risk migration that needs a credible transition plan
Database performance, replication or capacity issues
Insufficient monitoring and limited visibility into production
Technical debt accumulated across several generations of systems
Security controls added late or without a coherent architecture
No realistic continuity or recovery strategy
Layers of tools assembled without an overall operating model
Core expertise
One operational view across the infrastructure stack
Networks, systems, databases and real-time communications fail at their boundaries. Ironitia works across those boundaries to identify causes, design sound architectures and restore control.
E02
Networks and interconnection
Routing, interconnection and resilient network designs that make paths, dependencies and failure domains explicit.
E03
Telecom, VoIP and real-time communications
Operator-grade SIP and media architecture, call-flow diagnosis, interconnection, WebRTC and production reliability.
E04
Databases and data platforms
Performance analysis, replication, clustering, migration and recovery for databases that production services depend on.
E05
Security and operational resilience
Practical hardening, segmentation, logging and incident analysis connected to how systems are actually operated and recovered.
E06
Automation, observability and AI integration
Useful automation and applied AI built on reliable events, APIs and operational processes—not demonstrations detached from production.
Method
From uncertainty to operational control
The first objective is to replace assumptions with evidence. Recommendations then follow the risk, constraints and capacity for change of the organisation.
- 01
Understand
Establish how the environment is meant to work, what the business depends on, where incidents occur and who holds critical knowledge.
- 02
Observe
Collect facts from metrics, logs, traffic, configurations, topology and the behaviour of the live system.
- 03
Prioritise
Separate immediate risk from secondary technical debt and identify the changes that create the greatest operational benefit.
- 04
Transform
Design and implement a realistic evolution with controlled steps, explicit rollback options and limited blast radius.
- 05
Stabilise
Document the resulting system, improve monitoring, automate repeatable work and transfer the knowledge required to operate it.
A total rebuild is not the default answer. The right transformation protects production, reduces risk progressively and remains understandable to the people who will operate it.
Production experience
Built in production, not in theory
Ironitia's approach comes from direct responsibility for systems that carry real services, where architecture must survive incidents, maintenance windows and imperfect information.
Transforming telecom network architectures towards more resilient operating models
Operating SIP and VoIP infrastructure in production
Implementing BGP routing and operator interconnections
Diagnosing complex network failures across several layers
Modernising virtualised infrastructure without an uncontrolled cutover
Operating clustered database platforms
Resolving replication, consistency and performance problems
Migrating critical systems through progressive, reversible stages
Introducing monitoring, event collection and observability
Integrating telephony, billing and real-time communication platforms
Engineering commitments
Decisions that remain valid in production
No unnecessary rebuilds
No technology chosen for fashion
No false simplicity
No black-box dependency without justification
No recommendations disconnected from operations
Documentation is part of the solution
Resilience must be designed and tested
Production constraints come first
Product in development
Products developed from operational experience
Some recurring operational problems deserve a focused product rather than another generic platform. Ironitia is progressively turning that experience into specialised software.
In development
Internet Exposure Intelligence and Attack Visibility
MapAttack
MapAttack is being developed to help organisations, MSPs, hosting providers and regional operators understand who observes or targets their infrastructure, which assets are most exposed and what changed over time.
A specialised visibility platform—not a general-purpose SIEM and not a replacement for existing security operations tooling.
Follow MapAttack developmentCAPABILITY / SCOPE
- 01Internet exposure intelligence
- 02Attack visibility by IP, network and ASN
- 03Exposure trends and historical replay
- 04Multi-entity comparison
- 05Change detection over time
- 06Operational prioritisation
Xavier Lemaire
Senior expertise across the full infrastructure stack
Xavier Lemaire has worked with computer systems since the early 1980s. His experience spans systems, networks, telecommunications, databases, security and business operations.
For more than two decades, he has contributed to the design, operation and protection of telecom and VoIP infrastructure. His work combines architecture with direct operational responsibility: diagnosing incidents, migrating production systems, improving resilience and maintaining services under real constraints.
This breadth matters when a visible symptom in an application is caused by routing, storage, replication, signalling or an operational process somewhere else in the stack.
Projects and assignments in France, Spain, Finland, Sweden, Morocco, the Democratic Republic of Congo, Argentina and Russia.
A precise first conversation
Your infrastructure does not need another layer of complexity. It needs clarity.
Describe the system, incident, migration or architectural problem you are facing. Ironitia will determine whether and how it can help.