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.

01

40+ years in IT

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Telecom operator experience

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Networks, systems, databases and security

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Remote across Europe

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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.

01

Recurring incidents with no clearly established root cause

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An architecture that has become too complex to operate safely

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Infrastructure that is incomplete, outdated or undocumented

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Critical knowledge concentrated in a single person

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A fragile network or telecom platform

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A high-risk migration that needs a credible transition plan

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Database performance, replication or capacity issues

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Insufficient monitoring and limited visibility into production

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Technical debt accumulated across several generations of systems

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Security controls added late or without a coherent architecture

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No realistic continuity or recovery strategy

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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.

Explore our expertise
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.

  • Linux & Unix
  • Windows Server
  • VMware
  • Docker & Kubernetes
  • ZFS & TrueNAS
  • High availability
E02

Networks and interconnection

Routing, interconnection and resilient network designs that make paths, dependencies and failure domains explicit.

  • BGP
  • EVPN/VXLAN
  • Juniper
  • MikroTik
  • pfSense
  • IPsec & OpenVPN
E03

Telecom, VoIP and real-time communications

Operator-grade SIP and media architecture, call-flow diagnosis, interconnection, WebRTC and production reliability.

  • SIP & RTP
  • VoIP
  • WebRTC
  • Asterisk
  • FreeSWITCH
  • Kamailio
E04

Databases and data platforms

Performance analysis, replication, clustering, migration and recovery for databases that production services depend on.

  • MySQL
  • MariaDB Galera
  • PostgreSQL
  • SQL Server
  • Kafka
  • ClickHouse & Redis
E05

Security and operational resilience

Practical hardening, segmentation, logging and incident analysis connected to how systems are actually operated and recovered.

  • Hardening
  • Segmentation
  • Exposure reduction
  • Incident analysis
  • Continuity planning
  • Recovery testing
E06

Automation, observability and AI integration

Useful automation and applied AI built on reliable events, APIs and operational processes—not demonstrations detached from production.

  • OpenTelemetry
  • Sentry
  • n8n
  • APIs
  • Event pipelines
  • AI-assisted operations

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.

  1. 01

    Understand

    Establish how the environment is meant to work, what the business depends on, where incidents occur and who holds critical knowledge.

  2. 02

    Observe

    Collect facts from metrics, logs, traffic, configurations, topology and the behaviour of the live system.

  3. 03

    Prioritise

    Separate immediate risk from secondary technical debt and identify the changes that create the greatest operational benefit.

  4. 04

    Transform

    Design and implement a realistic evolution with controlled steps, explicit rollback options and limited blast radius.

  5. 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 development

CAPABILITY / 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.

Discuss your infrastructure