Arnaud-François F.

CONTEXT AND OBJECTIVES

EDF is developing numerous IoT services and needed to define the telecommunication platform for device connections. MQTT was previously chosen as the communication protocol.

WORK PERFORMED

Researched all MQTT brokers for evaluation: VerneMQ, Moquitto, AWS IoT, RabbitMQ, HiveMQ, JoramMQ, Xively. Facilitated workshops to define IoT use cases involving the broker: installation, initial setup, disaster recovery...

Specified loads (scenarios to support), quality of service, performance, reliability.

Developed the analysis grid. Selected 3 brokers for testing.

Wrote test cases and converted them into test plans. Set up test platforms in AWS. Created load test scenarios using a specific injection tool. Conducted tests with another consultant. Wrote test results and provided a recommendation.

Duration: 3 months

CONTEXT AND OBJECTIVES

Essilor had a legacy sales administration system (order taking, product configuration, technical calculations, factory routing) that struggled to adapt to new products. The objective was to define the application and technical architecture for the sales administration system, following a previously defined functional architecture.

WORK PERFORMED

This 2-year mission included an architecture scoping phase followed by implementation. I led and produced deliverables in both phases with a team of consultants.

Architecture Scoping

Situation analysis: Conducted workshops to understand the business and the strategy the target system needed to support. Facilitated "Business & Strategy" workshops with marketing, operations, call center agents, product managers, technical architects, legacy system managers, production, and other functional domain managers. Consolidated findings into a status report. Explored essential target architecture patterns: multilingual, product independence, multi-subsidiary, multi-factory...

Facilitated workshops to challenge ideas with stakeholders. Designed a phased migration plan from the current state to the target state with actionable production steps. Detailed technical solutions and technologies to implement (.NET, JRules...). Created first-level architecture views to directly initiate agile development at the end of the mission. Consolidated the report and presented it to management. Received approval to proceed with development and the migration plan.

Duration: 3 months.

Agile System Development

Set up the agile development team with 1 PO, 1 SM, 1 tech lead, and 6 developers. I ensured the smooth operation of the setup and monitored the technical directions defined during scoping. Worked on the physical database model, the overall software architecture with the tech lead, and the software industrialization principles to implement (tools, agile processes with the SM), monitored code quality. Led sprint review presentations. The system is fully operational in Europe.

Duration: 24 months.

In parallel with this mission,

I carried out numerous architecture and technology missions at Essilor: Publishing and printing architecture, EDI architecture, testing strategy, calculator audit, database performance audit.

Duration: 12 months

CONTEXT AND OBJECTIVES

The European SEAS project, dedicated to energy management, aims to improve producer/distributor interaction. The project management wanted an opinion on the architecture of the system under development. The objective was to provide an overall assessment and recommendations for improvement.

Work Performed

The subject concerns the use of the Semantic Web to enable energy production and distribution entities to interact more effectively automatically.

Studied the application and technical architecture documentation produced by the project. Identified Semantic Web usage patterns for this type of application. Organized and facilitated workshops for clarification and understanding of challenges and difficulties encountered. Discussed difficulties and architecture patterns with stakeholders. Identified alternative technologies and their impact on the architecture (what to centralize, what to place in equipment and production centers...). Wrote the diagnosis and recommendation report. Presented to project management.