Supply Chain & Production Planning Intern

About HyLight

Power lines, gas pipelines and railways are still inspected the way they were 50 years ago: by helicopter. Expensive, noisy, and up to a tonne of CO₂ per flight hour.

We built the alternative. The HyLighter is a 12-metre autonomous airship running on hydrogen. It flies for up to 10 hours, almost silently, and spots a 1 mm defect from 25 metres up.

But the airship is only half the story. Every flight brings back massive amounts of LiDAR, imagery and methane data, and that’s where the value is. Our AI turns it into what operators act on: 50+ types of defects detected automatically, and leaks pinpointed across their network.

It’s not a prototype. HyLighters already fly missions for France’s largest energy and rail operators and have flown over the Palace of Versailles. Backed by Y Combinator, we just raised €13M to go from 4 airships to 15.

Working at HyLight

We design, build and fly every HyLighter, and turn its data into insight, all under one roof on a former airbase. Which means:

• You own it all the way. At a big aerospace company, you’d own a small piece of one subsystem. Here, you design it, test it, stand on the airfield when it flies, and see the client act on the data it brings back.

• Weeks, not years. Ideas go from whiteboard to flight test in weeks.

• Responsibility from day one. The founders’ average age is 27. Nobody here waits for permission.

Job Summary

As we ramp up the industrialization and batch production of our autonomous airships, maintaining synchrony between procurement, warehouse inventory, and hangar assembly lines is mission-critical. We are looking for a Supply Chain & Production Planning Intern to join our Industrialization team.

Reporting directly to the Head of Industrialization, you will bridge the gap between engineering, procurement, and hangar operations. You will take ownership of production scheduling, mitigate part shortages, optimize inventory flows, and help lay the foundation of our manufacturing control systems.

Duration: 4-6 months

Key Deliverables & Responsibilities

Production Scheduling & Master Planning (MPS):

• Build, maintain, and update the Master Production Schedule (MPS) and line-level build plans to align with flight test campaigns, delivery commitments, and engineering milestones.

• Release, sequence, and monitor manufacturing work orders and shop orders across subassembly and final integration workstations.

• Evaluate workstation capacity, lead times, and labor requirements to flag potential bottlenecks and schedule risks early.

Material Requirements Planning (MRP) & Shortage Management:

• Track hardware availability against the Bill of Materials (BOM) in our ERP/MRP systems.

• Proactively identify component shortages, lead-time drifts, and supply chain constraints; execute recovery action plans with manufacturing and engineering teams.

• Maintain and audit planning master data (replenishment lead times, minimum order quantities, safety stock levels).

Inventory Control & Shop Floor Logistics:

• Optimize inventory levels to prevent surplus while avoiding stockouts of critical and long-lead components.

• Implement physical logistics systems on the shop floor: line-side storage, visual Kanban replenishment triggers, and kitting carts for assembly technicians.

• Drive 5S methodology and material traceability from incoming goods inspection through to final airship assembly.

Supplier Coordination & Procurement Expediting:

• Monitor purchase orders and actively expedite critical vendor deliveries.

• Interface with the Quality Assurance team to coordinate incoming material inspections and manage returns for non-conforming batches.

Continuous Improvement & Operational Analytics:

• Build and update visual management dashboards and KPIs (OTD, plan adherence, kit readiness rate, inventory turnover, stock accuracy).

• Participate in Lean manufacturing initiatives, Kaizen events, and root-cause analyses to streamline production flow and cut cycle times.

Ideal Profile & Qualifications

• Currently pursuing a Master’s degree or final year of Engineering / Business school with a specialization in Supply Chain Management, Industrial Engineering, Operations, or Logistics.

• Practical understanding or previous coursework/internship exposure to ERP/MRP concepts and BOM structures.

• Grasp of Lean manufacturing concepts.

• Strong organizational rigor, meticulous attention to detail, and comfort handling large datasets.

• High agency and proactive problem-solving: you anticipate bottlenecks rather than just reporting them.

• Excellent interpersonal and communication skills to collaborate effectively with design engineers, technicians, and external suppliers.

• Languages: French & English.

What We Offer:

• Real responsibility and mentorship.

• Potential to become a shareholder in HyLight upon hiring.

• 100% reimbursement of public transport pass (Navigo) or €800/year for sustainable commuting.

• Bike provided for commuting.

• Free lunch.

• Bi-annual offsite trips with the whole team.

Location

Base 217, Brétigny-sur-Orge, accessible via RER C