Enterprise Service Bus Expert H/F

Automotive Cells Company (ACC) is a joint venture created in the summer of 2020, supported by Stellantis, Mercedes-Benz, and Saft (a subsidiary of TotalEnergies). Our ambition is to produce electric batteries at the highest technological level while developing cleaner and more accessible mobility for all.

🔋 We are proud to manufacture, in our Billy-Berclau Gigafactory, the batteries that already power several electric vehicles available on the market (PEUGEOT E-3008 and E-5008, Opel Grandland, DS N°8, Citroën C5 AirCross, and Jeep Compass).

Since 2023, Block 1 of our Billy-Berclau / Douvrin Gigafactory has entered production. This first block marks a decisive milestone in the site’s history: after the launch of the first production lines, we are now engaged in a ramp-up phase—an essential step toward reaching full industrial capacity.

This period is marked by major technical and human challenges: ensuring process reliability, optimizing performance, strengthening skills, and embedding a culture of operational excellence.
To support this industrial acceleration, we are recruiting dynamic and passionate teams across Production, Maintenance, Quality, Engineering, HSES, and Logistics.

⚡️ Joining Block 1 means taking part in the very heart of ACC’s industrial development and contributing every day to the success of our Gigafactory.

🔋 Join ACC and be part of shaping the future of electric mobility. Our batteries already power the PEUGEOT E-3008 and E-5008, Opel Grandland, DS N°8, Citroën C5 Aircross and Jeep Compass — and soon, Mercedes!

Job description

The Service Bus Expert will be accountable for the successful design, implementation, governance, adoption and long-term integrity of the Enterprise Service Bus across ACC manufacturing and enterprise environments. The role bridges Enterprise Architecture, Industrial IT/OT, Manufacturing Engineering, Data Platforms, Cybersecurity and Application Teams.

Main missions: 

• Delivery & Implementation

  • Lead the deployment of the Enterprise Service Bus and event-driven architecture.

  • Own delivery of the IT/IT and IT/Cloud messaging backbone.

  • Coordinate system integrators, vendors and internal delivery teams.

  • Define and govern implementation roadmaps and migration plans from existing point-to-point integrations.

  • Drive integration of manufacturing, MES, PLM, ERP, Quality, Maintenance and Data Platform ecosystems.

  • Ensure alignment with ACC Enterprise Architecture principles and target state roadmap

• Architecture & Design Authority

  • Act as technical authority for messaging and integration architecture.

  • Define topic hierarchies, queues, event models and naming conventions.

  • Establish communication and integration patterns across OT, IT and cloud environments.

  • Design bridging mechanisms between MQTT and AMQP ecosystems.

  • Define routing, filtering, transformation and event distribution models.

  • Ensure implementation of "Collect Once, Use Many" integration principles

• Operational Ownership

  • Maintain the long-term integrity, performance and resilience of the service bus ecosystem.

  • Define monitoring, observability and support processes.

  • Govern capacity management and scalability planning.

  • Lead incident resolution and root cause analysis for backbone-related issues by enabling a service center to support the applications.

  • Ensure backlog management, continuous improvement and technical debt reduction.

  • Act as product owner for service bus evolution and enhancement.

• Governance & Standards

  • Define and enforce integration governance.

  • Establish onboarding procedures for applications connecting to the backbone.

  • Maintain architecture standards, integration patterns and reusable assets.

  • Review solution designs and approve deviations.

  • Ensure compliance with cybersecurity and data governance requirements.

  • Manage lifecycle of integration standards and messaging contracts

• OT/IT Convergence

  • Act as a bridge between manufacturing and enterprise technology teams.

  • Support deployment of industrial data flows across factories.

  • Ensure reliability and low-latency requirements for manufacturing processes.

  • Drive adoption of event-driven communication models in OT environments.

  • Support future expansion of the Unified Namespace vision across ACC plants.

• KPIs

  • % of Service Bus component deployments delivered on time and within scope

  • % of deployments compliant with target architecture

  • Number of point-to-point connections successfully replaced

• 
  
  To describe the DNA of Block 1 of the ACC Gigafactory :

• A high-threshold SEVESO-classified industrial site where safety governs every action.

• A ramp-up in production where we are adapting our practices to improve stability and performance.

• A strong culture of quality supported by regular checks and committed teams.

• A close-knit group united around ambitious goals, with management on the ground to support success.

Knowledge & Know how:

• Strong knowledge of event-driven architecture & integration patterns

• Extensive understanding of MQTT and AMQP protocols in an industrial context

• Understanding of Unified Namespace (UNS)

• Knowledge of industrial IT ecosystem: PLC, SCADA, MES

• Understanding of data pipelines and real-time processing

• Knowledge of service bus technologies in the Azure context

• Project management skills (Agile, hybrid delivery)

Experience:

• Significant experience in the deployment of service bus architectures based on UNS

• Proven experience in on-time technical project delivery in a large-scale context

• 10+ years in enterprise integration, industrial digitalization or platform engineering

• Experience with OT/IT convergence programs

• Experience running production-critical platforms

• Experience managing external integrators and system implementation partners

Qualifications:

• Degree in engineering, IT, or related field

• Certifications in project management or cloud/IoT are a plus

Key behaviours:

• Strong leadership with technical credibility

• Takes ownership with end-to-end accountability

• Hands-on mindset (ability to go deep when needed)

• Strong problem-solving skills

• Resilience with an ability to work in complex and fast-paced industrial environments

• Strong communication and stakeholder management

Some extra skills which make the difference:

• Experience in manufacturing, battery, automotive, energy or process industries

• Experience with Industrial Edge platforms

• Experience with Digital Twin solutions

• Data governance and master data management

• Kubernetes and containerized integration platforms

• Infrastructure as Code (Terraform)

• FinOps and cloud cost optimization

• Ability to structure deployment methodologies at scale

Why join us?

✅ Performance-based bonuses
✅ Meal allowance
✅ Profit sharing
✅ Attractive employee benefits: gift cards, holiday vouchers, tickets, organised outings, etc.
✅ Mileage allowance
✅ Referral bonus
✅ Two meal delivery options + connected fridges
✅ Multicultural and inclusive environment

Our Recruitment Process :

• Phone Pre-Qualification : an initial conversation to understand your background, motivations, and answer your questions.

• Technical Interviews (2 steps) : discussions with managers to assess your skills and put them into perspective with the role and team challenges.

• HR Interview : an in-depth conversation, supported by a behavioral assessment, reviewing key points from the technical interviews, discussing your future within ACC, and covering employment conditions.