Senior Electrical Engineer - Solid-State Protection Systems

Littelfuse; San Sebastian; On-site; PHP 6,298,110 - 8,397,481; Full time

Job summary

Littelfuse is seeking a Senior Electrical Engineer to join the Solid-State Protection Systems team in San Sebastian, Spain. You will contribute to development of next-generation protection and control products for AC and DC electrical systems, combining power electronics with embedded control and system-level protection technologies.

You will design and develop electrical circuits, perform schematic capture, simulation, component selection, stress analysis, and PCB reviews, while collaborating

Qualifications

• BS or MS degree in Electrical Engineering.
• 10+ years of experience in electrical product development.
• Strong background in analog, digital, and mixed-signal circuit design.
• Experience with microcontrollers, embedded systems, or programmable logic devices.
• Understanding of power electronics, protection systems, and current sensing technologies.
• Experience with schematic design, circuit simulation, and PCB layout.
• Familiarity with EMC, safety, and product compliance requirements.
• Strong problem-solving, communication, and collaboration skills.
• Ability to work independently and drive technical decisions within project teams.

Responsibilities

• Design and develop electrical circuits and subsystems for solid-state protection and control products.
• Perform schematic capture, simulation, component selection, stress analysis, and PCB design reviews.
• Collaborate with firmware engineers to define and implement system requirements.
• Support laboratory evaluation, troubleshooting, and validation testing of AC and DC protection systems.
• Participate in product qualification, reliability testing, and compliance activities.
• Work closely with manufacturing and supplier partners to ensure product performance, quality, and cost objectives are achieved.
• Contribute to technical discussions, design reviews, and project planning activities.
• Support occasional travel to manufacturing sites, suppliers, or customer locations.

Skills

Analog circuit design

Digital circuit design

Mixed-signal design

Power electronics

Embedded systems

Microcontrollers

Schematic design

PCB layout

EMC/safety compliance

Team collaboration

Education

BS or MS in Electrical Engineering

Tools

PCB layout software

Circuit simulation software

Job description

Littelfuse is seeking a Senior Electrical Engineer to join the Solid-State Protection Systems team in San Sebastian, Spain. You will contribute to development of next-generation protection and control products for AC and DC electrical systems, combining power electronics with embedded control and system-level protection technologies.

You will design and develop electrical circuits, perform schematic capture, simulation, component selection, stress analysis, and PCB reviews, while collaborating