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Mathieu CARBONNEAUX OSUAGWU
Complex Systems Architect | Cloud-Native, Infrastructure & Security Expert

About

Overview

Passionate about computing since childhood, I began programming at age 12 (Logo, Basic, Z80 assembly, 680x0, C/C++). My initial training, focused on electronics and industrial computing followed by business IT, provided me with a comprehensive vision of computing, from hardware to software.

With nearly 30 years of professional experience (since 1997), I have held successive roles as a Developer, DBA, Systems/Network/Security Engineer, and Middleware Expert. I am a multipotentialite: my profile naturally extends beyond established frameworks. I consistently manage architecture, operations, implementation, and design in parallel (Architect and DevOps).

Major Technical Achievements

  • SFR Proprietary API Gateway (since 2006): 15+ years of continuous evolution (IBM DataPower → Open Source mod_perl → REST → Zeus/vTM Event-Driven Architecture).
  • Multi-level Load Balancer: DSR (Direct Server Return) architecture based on eBPF/Cilium with Maglev consistent hashing, driven by a custom in-house Kubernetes operator.
  • Security Data Lake: 300 TB of data on ClickHouse/Kafka, centralizing all security logs for the SFR Information System (FW, Proxy, VPN).
  • Transformation Pioneer at SFR: Introduction of Linux (2004), virtualization (2006), and then Kubernetes (2020).
  • GCP Landing Zone (2023): Complete implementation (Dedicated Interconnect, Keycloak SSO, MLOps platform).

Current Expertise

Currently, I am involved in nearly all infrastructure architecture directions for SFR SI. I am proficient in over 10 languages, particularly the Java/J2EE ecosystem (WebLogic, JBoss, Tomcat). My current research focuses on AI and Machine Learning for implementing intelligent anti-DDoS mechanisms.

Work Experience

2014 – Present
Monitoring Tools Expert

Massive scale observability architecture. Collaboration with Zabbix (v2.3) for LLD. Design of a 300 TB security data lake (ClickHouse/Kafka). Evangelizing modern observability practices.

Highlights
  • Implementation of a 300+ TB data lake on ClickHouse/Kafka
  • Introduction of Zabbix and contribution to v2.3 development
  • Standardization of metrics and logs across the entire Information System
  • Full observability stack (metrics, logs, traces)
2010 – Present
Infrastructure Solutions Architect

SOA standardization and Web architecture. Leading the GCP Landing Zone (2023): full management via Terraform (Network Interconnects, VPC, IAM). Implementation of GitOps on a massive internal GitLab instance.

Highlights
  • SOA/API Architect and SI standardization
  • Terraform Automation: Network Interconnect, VPC, and IAM on GCP
  • Management of one of the largest internal GitLab instances (GitOps, CI/CD)
  • Design of high-performance Load Balancers (eBPF/Cilium/Maglev)
  • Technology evangelism: from virtualization to Kubernetes
2006 – Present
SOA – API Gateway Expert

Design and evolution of the API Gateway (15 years). Expertise in Java/J2EE (Strategic Legacy) and application servers (WebLogic, JBoss, Tomcat). Migration to event-driven microservices architectures.

Highlights
  • Initial design of SFR API Gateway (2006)
  • Java Application Server expertise (WebLogic, JBoss, WebSphere)
  • Migration from IBM DataPower → Open Source (Apache/mod_perl)
  • Full support for SOAP and REST
  • Event-driven architecture (vTM)
2006 – Present
Directory and IAM (SSO) Expert

IAM engineering and LDAP directories. Migration from SiteMinder to Keycloak. Implementation of advanced MFA (WebAuthn, OCRA). Application of Agile methodologies (Scrum/Kanban).

Highlights
  • LDAP directory management (Netscape → 389 DS)
  • SSO migration: SiteMinder → Proprietary solution → Keycloak
  • MFA: TOTP, WebAuthn, FIDO, Passkeys, OCRA
  • Project leadership using Agile (Scrum / Kanban)
2005 – Present
Web Hosting Infrastructure & Network Expert

High-performance architecture. First Apache Linux foundation. Carrier-grade network expertise (BGP, VPN). Kubernetes design (Talos/Cilium) via GitOps and operators.

Highlights
  • Design of the first SFR Apache Linux foundation
  • High-availability hosting architecture
  • Multi-level Load Balancing (BGP/ECMP/eBPF/Cilium/HAProxy)
  • DSR with Maglev consistent hashing
2004 – Present
Unix AIX and Linux Platform Expert

Lead on the introduction of Linux. Industrialization of packaging and deployment automation. Evangelizing the shift of low-level layers toward Open Source.

Highlights
  • Introduction of Linux at SFR (2004)
  • Virtualization and container evangelism
  • Multi-platform industrialization and packaging
  • Deployment automation (Kickstart, NIM, Foreman)
April 2003 – Present
Technical Expert: OLTP Tuxedo, IBM TXSeries & MOM MQSeries

Critical transactional systems (XA, 2PC). L3/L4 support for Tuxedo and Encina. Complex modeling via UML and Merise.

Highlights
  • L3/L4 Support for Tuxedo and TXSeries/Encina
  • Distributed transaction expertise (XA, 2PC)
  • Merise and UML modeling for transactional systems
  • MQSeries Administration & Kafka Migration
March 2001 – March 2003
Technical Expert: DCE TXSeries/Encina

Expertise in DCE and TXSeries/Encina across heterogeneous Unix environments. Critical operations of 30 Encina cells.

Highlights
  • L3/L4 Support for DCE and TXSeries/Encina
  • Multi-platform operations
  • Expertise in MQSeries, Oracle, Informix
January 2001 – March 2001
Outsourcing Manager - 6ème Sens Project

Outsourcing of the WAP/WEB portal to ATOS. Windows 2000, COM/DCOM, and MSMQ architecture.

Highlights
  • Outsourcing of Bouygues 6ème sens WAP portal
  • Implementation of complete infrastructure
July 2000 – December 2001
Technical Architect - SIMP Project

Performance optimization of SIMP. Merise modeling for complex migration to Oracle 8i.

Highlights
  • SIMP performance optimization
  • Encina/Informix → TXSeries/Oracle migration
  • C/C++ and Unix Shell development
March 2000 – June 2000
Developer and Technical Architect - SRPP/Dual Slot Project

Development of SRPP (Prepaid Top-ups). Object-oriented modeling and Informix ESQL/C development.

Highlights
  • N-tier architecture for top-up system
  • C/C++ and ESQL/C development
March 1999 – February 2000
Developer and Technical Architect - SIMP Project

Design of n-tier architecture for payment methods. Full Merise modeling.

Highlights
  • Full n-tier architecture design
  • Merise modeling
  • TITAN FT → BBA FT migration
August 1998 – February 1999
Technical Architect and Coordinator - CSP to Visual Age Migration

Y2K migration of CSP code on OS/390 Mainframe. DB2 Client/Server architecture.

Highlights
  • Y2K CSP/MVS Migration
  • DB2 Client/Server Architecture
  • DRDA/SNA Gateways
August 1998 – February 1999
Project Manager - KART Project

Distributed document management. Merise modeling under HP-UX/Oracle.

Highlights
  • KART Project Manager
  • Distributed Client/Server architecture
  • Merise modeling
April 1998 – July 1998
Project Manager / Developer - PACT Project

GSM ticket management. Oracle migration and Y2K compliance.

Highlights
  • GSM/PABX ticket billing
  • Oracle and Windows migration
  • Y2K Compliance
January 1998 – March 1998
Developer - SIM Center Project

CAM (Computer-Aided Manufacturing) for SIM cards. UML modeling and multi-platform C++ development.

Highlights
  • SIM card CAM system
  • UML and Merise modeling
  • C++ and Oracle OCI development
September 1997 – December 1997
Project Manager / Developer - PACT Project

C/Pro*C Oracle development for GSM ticket billing under HP-UX.

Highlights
  • C and Pro*C Oracle development
  • PowerBuilder and SQL*NET
June 1997 – August 1997
Developer - SGD Project (ULYSSE Project)

N-tier architecture for distributor management via Encina and DCE under AIX.

Highlights
  • N-tier architecture with Encina
  • OTS and DCE development
  • OMT modeling
September 1996 – May 1997
Technical Architect, Developer, Network & System Administrator

Unix systems and network administration. C++ development with Oracle database access.

Highlights
  • Network and server administration
  • C/C++ and Oracle development
  • TCP/IP technology watch

Projects

  • ZenProjects: My various Open Source projects contributing to the community

Contact

Thonon-les-Bains (Mobility: Geneva / Lausanne / Lake Geneva Area), Haute-Savoie FR
Home Page
My Personal Page
Github
mcarbonneaux
Github
ZenProjects
Linkedin
mcarbonneaux

Education

  • 1995 1996

    ICEP

    Bachelor of Science (TRIO)

    Computer Science

  • 1990 1994

    ICEP

    BTS (Associate Degree)

    Industrial Computing

  • 1987 1989

    Lycée Pasteur

    Baccalauréat F2 (High School Diploma)

    Electronics

Skills

Architecture & Governance Expertise Master
SI Standardization & Tech Evangelism Merise & UML Modeling (Data/Process Design) SOA Governance & API Architecture (SOAP/REST) GCP Landing Zone Design (Interco, VPC, IAM via Terraform) Java/J2EE Legacy Architecture (WebLogic, JBoss, WebSphere) Transactional Engineering (XA, 2PC, OLTP) Agile Methodologies (Scrum, Kanban)
DevOps, GitOps & CI/CD Expert
Massive GitLab Instance Management (CI/CD, Runners) Infrastructure as Code (Terraform, Ansible, Puppet) GitOps (ArgoCD, Flux, Helm) Automation & Industrialization (Foreman, NIM, Kickstart) Deployment Pipeline Management
Identity & Security (IAM) Expert
Keycloak (Central IDP) SAML2 / OpenID Connect / OAuth2 MFA (WebAuthn, FIDO2, Passkeys, OCRA RFC 6287) Massive Directory Management (389 DS, iPlanet, Oracle DS) Perimeter Security (WAF, Reverse Proxy, IPS)
Infrastructure & Networking Expert
Kubernetes (Talos Linux, Cilium, Operators) Carrier Networking (BGP, ECMP, VXLAN, SDN, Anycast) Traffic Management (F5 BIG-IP, Ivanti vTM, HAProxy) Unix/Linux Systems (RedHat, AIX, Solaris, HP-UX) Virtualization (VMware, KVM)
Observability & Data Engineering Expert
Big Data (ClickHouse, Kafka 300+ TB) Zabbix Core Contributor (LLD, Provisioning API) Observability (Prometheus, Thanos, Grafana, ELK) Databases (Oracle, Informix, DB2, SQL Server)
Programming & Middleware Expert
Languages (C/C++, Golang, Java J2EE, Rust) Low-Level (Z80/68k Assembly, eBPF/XDP) Scripting (Perl/mod_perl, Python, KSH, TCL) TP Monitors (Tuxedo, TXSeries/Encina, DCE) Messaging (MQSeries, Kafka) Open Source (FastCGI Maintainer)

Languages

  • FrenchNative
  • EnglishProfessional (C1/C2 - Technical and conversational)

Interests

Outdoor Activities
Kayaking Canyoning Climbing Trekking
Computing
Open Source IoT Video Games Electronics Retro-gaming