Technical Infrastructure & Network Architect H/F - Freelance

Taux journalier (TJM): 700

Notre client dans le secteur Aérospatial et défense recherche un Technical Infrastructure & Network Architect H/F Descriptif de la mission:

Context

The role supports transformation, modernization and operational initiatives across multiple projects and sites, including industrial/OT environments. The Technical Infrastructure & Network Architect works closely with Enterprise, Solution, Application, Data, Cloud and Security Architects, as well as Infrastructure, Network, DevOps and project teams. Network and infrastructure architecture are part of the overall solution architecture, not isolated technical domains.

Mission

Provide technical architecture leadership across infrastructure, network, cloud and hybrid environments. Define coherent, secure, resilient and operable technical architectures, and support delivery from design through implementation and transition to operations. Contribute to cross-domain architecture decisions and challenge proposed solutions where required.

Key responsibilities

• Translate business, application and solution requirements into technical architecture requirements covering hosting, connectivity, performance, availability, security, resilience, backup/recovery, monitoring and supportability.

• Define target and reference architectures, reusable standards and technical patterns across sites.

• Produce HLDs and architecture documentation, and review LLDs and detailed technical designs.

• Analyse impacts, dependencies, risks, architecture gaps, single points of failure and operational constraints.

• Challenge solutions proposed by projects, suppliers and engineering teams, and assess alternatives.

• Document key architecture decisions through Architecture Decision Records (ADRs).

• Assess deviations from architecture and technical standards and support governance and approval processes.

• Define Build-to-Run requirements and support production readiness, operational handover and knowledge transfer.

Technical environment

• Architecture practices: ArchiMate, TOGAF or equivalent methodology, architecture principles and standards, Architecture Decision Records, target-state architecture, impact and dependency analysis, architecture governance

• Infrastructure and network: LAN/WAN, routing, switching, VLANs, subnets, network segmentation, firewalls, DMZs, security zoning, Wi-Fi, site/datacenter connectivity, compute, virtualization, Windows, Linux, storage, backup and recovery, high availability, disaster recovery, hybrid infrastructure

• Cloud and hybrid: AWS architecture and networking, VPC, subnets, route tables, Internet/NAT Gateway, Transit Gateway, VPC Peering, PrivateLink, Security Groups, Network ACLs, Route 53, AWS Direct Connect, AWS Landing Zone

• APIs and integration: REST APIs, OpenAPI, OAuth2, OIDC, JWT, mTLS, API Gateway, reverse proxy, API security, rate limiting, webhooks, event-driven architecture, Kafka, messaging, AMQP, SFTP, HTTPS

• Industrial/OT: IT/OT segregation, industrial DMZs, factory and edge connectivity, industrial Wi-Fi, secure remote access

Expected deliverables

• Target and reference architectures

• HLDs and architecture diagrams

• Architecture Decision Records

• Technical requirements and design reviews

• Architecture risk and dependency assessments

• Standards exception records

• Architecture inputs to production readiness and operational handover