Freelancer profile translated to English.
Back to original languageAbout Mohamed
Solutions, Data & Cybersecurity Architect with over 17 years of experience in designing, transforming, and securing distributed, critical, embedded, and data-centric systems. I support organizations from strategic framing to execution, in contexts with strong constraints on resilience, safety, compliance, service continuity, and reliable data exploitation.
My added value lies in a deep understanding of technological subtleties, architectures, and the specific realities of each organization. This mastery allows me to anticipate structural risks, secure architectural choices, and avoid major design, integration, governance, or trajectory errors.
I intervene particularly in IT and OT in energy, defense, internal security, automotive, biometrics, and industry, with strong expertise in Cyber, Data, distributed architectures, microservices, IoT/IIoT, IAM/PKI, C/C++, Opensource tech, cloud/hybrid, and agentic AI architecture.
French
Native or bilingual
Arabic
Native or bilingual
English
Fluent
Can work on-site
Clamart (up to 30km)
Experience
- Gendarmerie NationaleSolutions, Data & Cybersecurity ArchitectDEFENSE AND MILITARYOctober 2025 - Today (8 months)Clamart, France• Business, functional, application, and technical analysis of a large-scale messaging, calendar, and contact (MCE) IS.• Data-centric mapping of the end-to-end architecture: messaging flows, calendars, contacts, LDAP directory, identities, ACLs, application dependencies, backup/restore, and client interfaces.• Audit of the foundation, technical debt, and data governance: LDAP models, multi-domains, upstream drift, forks, update strategy, test quality, and operational risks.• Cybersecurity and data security analysis: data confidentiality, OIDC/Kerberos/Basic over TLS authentication, PKI/TLS, IMAP ACL rights, attack surface, dependencies, and patch management.• Comparative study of alternative solutions integrating functional coverage, data model, interoperability (CalDAV/CardDAV/IMAP), migration, coexistence, BCP, and observability.Environment: OIDC/OAuth2, JWT, MFA, Kerberos/GSSAPI, LDAP/LDAPS, TLS/PKI, SMTP, IMAP, CalDAV/CardDAV, IMAP ACL, TOGAF, PlantUML, SonarQube, SAST, dependency scanning
- EnedisSolutions, Cybersecurity ArchitectENERGY AND UTILITIESMarch 2024 - October 2025 (1 year and 7 months)Courbevoie, France• Framing the transformation of the application, cybersecurity, and data foundations of a critical electricity control system, with service continuity during legacy/new coexistence.• Definition of a target microservices and data-driven architecture: communication protocols, exchange formats, data contracts, events, APIs, middleware, and on-premise/AWS infrastructure enablers.• Design of data interaction and flow models using MOA and EDA approaches, with consistency management, idempotence, versioning, traceability, and resilience.• Architecture and governance of data from Linky meters: structuring flows, exploitation in Snowflake, traceability of exchanges, and articulation with application and event services.• Structuring OpenAPI/AsyncAPI interface contracts, JSON/Protocol Buffers formats, REST/gRPC/Kafka exchanges, and selection of storage, caching, and data platforms around Snowflake, PostgreSQL, and Redis.• Application of the IEC 62443 standard to zones and conduits of the electrical control system: definition of IT/OT flow matrices, network segmentation, security requirements by criticality level (SL-T).• Specification and management of IAM OIDC/OAuth2/SSO, fine-grained management of roles/permissions, and support for teams through architecture committees, secure C++ templates, and Kubernetes integration in accordance with ISO 62443.Environment: Microservices, MOA, EDA, OIDC/OAuth2, Keycloak, JOSE/JWT, REST, gRPC, Protocol Buffers, JSON, C/C++, X.509, PKI, Docker, Podman, Snowflake, PostgreSQL, Redis, OpenAPI, AsyncAPI, Kafka, Kubernetes, AWS, ISO 62443 (OT)
- CS Group - Sopra SteriaDesign and development of a secure licensing and control solution for hardened machinesDEFENSE AND MILITARYJune 2023 - March 2024 (9 months)Clamart, France• Architecture of secure embedded services to verify, renew, and manage licenses online and offline.• Microservice-oriented license management server architecture.• Deployment in an on-premise cloud and secure exchange with machines.• Architecture of the central server managing license servers.• Development and integration of all components on Gentoo machines in C/C++/Qt5.• Development and integration of microservices with NodeJS.• Writing specification and architecture documents.• Pentests and cybersecurity audits to validate the solution.
Recommendations
Be the first to recommend Mohamed
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Computer Engineering DegreeÉcole Centrale de Lille - École Nationale des Sciences de l'Informatique de Tunis2008Diplôme d'Ingénieur en Informatique
- Preparatory studies for engineering cyclesInstitut Préparatoire aux Études d'Ingénieurs2005