We help organizations scale AI beyond the limits of traditional datacenters by enabling higher density, greater efficiency and lower environmental impact – accelerating time-to-AI from first deployment to full production.

What impact you will have

We are seeking a proactive and innovative Senior Automation Engineer to join our dynamic product team. You will be instrumental in designing, implementing, testing and optimizing automated systems to enhance the efficiency and reliability of our products, and enabling mass production. This role is ideal for someone who thrives in a fast-paced environment and is eager to apply their expertise in automation to drive continuous improvement and innovation

What you’ll do

Electrical, Electronics and Control Design: Develop detailed electrical schematics ensuring safety, energy efficiency, electromagnetic compatibility (EMC), and compliance with applicable standards.
Product Development: Collaborate with cross-functional teams in the full product lifecycle (NPI - New Product Introduction, quality assurance), from conceptualization to industrialization.
PLC Development: Program and implement control logic using PLC environments for prototyping and custom series.
Embedded programming: Develop embedded software for process control.
Cost Optimization (BOM): Manage and optimize the Bill of Materials to ensure the electrical design is viable for high-volume manufacturing.
Documentation: Develop and maintain detailed documentation, including technical specifications, user manuals, and maintenance procedures.
Services support: Diagnose and resolve issues in automated systems to minimize downtime and ensure optimal performance

What you’ll need

Bachelor’s or Master’s degree in Electronics, Electrical, Mechatronics, Telecommunications Engineering or a related field.
Minimum 7 years of experience in product development, automation design, programming, and implementation (e.g. experience over consumer electronics, building automation, automotive industry, IOT devices, illumination, HVAC or measure devices).
Strong experience in PLC languages and solid knowledge of C for embedded systems.
Professional fluency in English (written and spoken) is mandatory for technical documentation, supplier management, and international collaboration.
Proficiency in electrical CAD software (EPLAN or AutoCAD Electrical).
Experience with industrial communication protocols (e.g., Modbus, OPC UA, CAN, SPI, I2C, etc).
Familiarity with mass-market product regulations (CE marking, UL certifications, etc.).
Strong problem-solving abilities, excellent communication skills, and the ability to work both independently and collaboratively.
Ability to bridge the gap between industrial automation and consumer electronics.
Experience in high-volume manufacturing environments.

** Nice to have:

Hands-on experience working over microcontrollers and DSPs from ST, NXP, Nordic or TI.
Knowledge of static code analysis tools such as cppcheck, sonarcube, etc.
Pipelines and job automation: Jenkins, Gitlab or Bitbucket runners.
Experience over RTOS like Zephyr, FreeRTOS and their toolchain (including Cmake)

What we offer

Attractive compensation package reflecting your expertise and experience.
Restaurant Pass.
Private Health Insurance.
Languages classes (English).
A healthy work environment with fresh fruits to energise and an on-site gym for active breaks.
A great work environment characterized by friendliness, international diversity, flexibility, and a hybrid-friendly approach.
You'll be part of a fast-growing scale-up with a mission to make a positive impact, offering an exciting career evolution.

Our job titles may span more than one job level. The actual base pay is dependent on a number of factors, such as transferable skills, work experience, business needs and market demands.

Our Inclusive Responsibility

Submer is committed to creating a diverse and inclusive environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, or any other protected category under applicable law.

Department: Engineering
Role: Sr. Electrical Engineer
Locations: Barcelona (Rubí)
Remote status: Hybrid

About Submer

From concept to deployment, we create liquid-cooled datacenters that scale smarter, run cleaner and cost less.

Engineering · Barcelona (Rubí) · Hybrid

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