Roles they hire for
- Power management firmware engineer
- Industrial IoT gateway engineer
What they emphasise
- Power management devices
- Modbus and industrial IoT gateways
- Embedded Linux
Brush up on
Modbus TCPMetering accuracyEmbedded LinuxTLS on devicesIEC 62443
How the rounds usually run
A typical regulated product loop for embedded roles. Companies vary by team and seniority.
Recruiter or hiring-manager screen
- Background in regulated or safety-critical work
- Role fit
Example: Have you worked under a formal development process? Which one?
Technical 1: C, RTOS and state machines
- Embedded C and RTOS fundamentals
- State machine design and implementation
Example: Implement a table-driven state machine in C and explain how you'd test every transition.
Technical 2: Safety and design
- Fault detection, safe states and recovery
- Risk analysis and software FMEA
- Verification and traceability
Example: How would you detect a stuck sensor reading?
Panel: cross-functional
- Working with systems, hardware and quality engineers
- Handling changes under change control
Example: A hardware change lands late. How do you assess its impact on certified firmware?
HR
- Motivation and values
- Logistics
Example: Why do you want to work on medical or industrial devices?
Practice questions
Original questions written for Schneider Electric's focus areas, not leaked ones.
- How would you bridge Modbus RTU devices to a cloud platform securely?
- Design firmware for an energy meter that must never lose its accumulated reading.
- How do you manage certificates on thousands of field gateways?
- Explain how you'd measure power accurately with an ADC and a current transformer.
- What would you log on a gateway to diagnose field issues without filling storage?
Your prep playlist
Design rounds to practise
Themes are inferred from Schneider Electric's public product lines.
Take an AI mock round styled on Schneider Electric, with follow-ups that probe what you missed.
Start a mock round