Cross-functional Architect – Telecoms / B2C - Freelance

Project overview

Cross-functional Architect – Telecoms / B2C (M/F)

Project details

South of Paris (2 days remote work/week)

Start Date: December 1, 2026

Contract: Freelance

Long-term assignment

Sector: Telecommunications

Mission Context

Our client, a major player in the telecommunications sector, is looking for a Cross-functional Architect to join their Information Systems Department (DSI).

You will join a team of 60 to 70 cross-functional functional architects, working on a portfolio of 300 to 400 projects per year.

The mission primarily concerns the B2C scope: commercial offers, sales journeys, customer relations, and offer catalog.

Your role will be to design and manage functional architecture studies, ensuring the consistency and interoperability of the various information system applications.

Main Missions

Studies generally last 1.5 to 2 months, and can extend up to 4 months for complex projects involving numerous application systems.

• Scoping and Needs Analysis
• Gather, analyze, and challenge business needs.
• Co-construct solutions with business and technical teams.
• Conduct scoping studies and define functional scopes.
• Identify impacts on existing applications and systems.
• Propose solution scenarios and work packages.
• Estimate forecast workloads with the development teams and prepare project commitments.
• Functional Architecture and Specifications
• Design cross-functional architectures.
• Model business processes, user journeys, and application interactions.
• Produce UML diagrams: activities, sequences, flows, and exchanges between applications.
• Define functional requirements and distribute them among the various development teams.
• Write architecture documents and functional specifications on Confluence.
• Ensure consistency of inter-application exchanges (APIs, files, flows).
• Study Management and Project Support
• Independently manage architecture studies from their launch to their validation.
• Lead design workshops with business stakeholders, architects, and development teams.
• Coordinate various stakeholders and ensure solution alignment.
• Support teams during development up to production.
• Handle design discrepancies, support evolutions, and contribute to testing and acceptance phases.
• Start: flexible
• Remote: hybrid
• Location: Paris, France, FR
• Languages: French