ABOUT US
tozero is Europe’s leading deep-tech startup in lithium-ion battery recycling, driving decarbonization and the circular economy through innovative material recovery solutions.
We are on a mission to recover critical materials from end-of-life batteries and build a cleaner, more sustainable future.
WHAT WE'RE LOOKING FOR
As an electrical and/or mechatronics technician, you will be the technical backbone of our recycling plant. This role is for a true hands-on professional with proven experience in both mechanical and electrical domains, capable of working independently in a demanding industrial environment, including high-voltage systems and complex equipment.
You will work directly on the shop floor, performing installations, maintenance, troubleshooting, and supporting production during ramp-up and scale-up phases.
In this role, you will play a key part in ensuring plant reliability, uptime, and safe operations, contributing directly to the build-up and continuous improvement of our production site. Your cross-functional expertise will make you a critical pillar of the maintenance and operations team.
KEY RESPONSIBILITIES
Mechanical
* Installation & Assembly: Independently install, assemble, and commission a wide range of industrial equipment, machinery units, and complex piping systems.
* Modifications & Upgrades: Execute technical modifications and plant improvements to optimize process performance and equipment integration.
* Equipment Maintenance: Maintain, align, and troubleshoot pumps, motors, gearboxes, valves, and heavy process equipment.
* Spare Parts Management: Identify, replace, and manage critical spare parts to ensure rapid recovery and minimal downtime.
* Preventive Care: Execute and optimize preventive and corrective maintenance schedules across all mechanical assets.
* Fabrication: Perform welding, machining, and metal fabrication as required for repairs or bespoke plant adjustments.
* Diagnostics: Diagnose mechanical wear and tear, implementing sustainable technical solutions to extend equipment life.
Electrical
* High-Voltage & Safety: Safely manage high-voltage systems and strictly enforce electrical safety (LOTO) and compliance.
* Installation & Power: Install, wire, and commission electrical systems, control cabinets, and high-voltage power distribution.
* Infrastructure: Implement cable routing, conduits, and tray systems for power and signal lines.
* Instrumentation: Maintain and calibrate sensors and actuators to ensure accurate process feedback.
* Diagnostics & Upgrades: Perform structured fault-finding and modify control logic or panels to improve plant automation.
General Maintenance and Ownership
* Diagnose complex faults across mechanical and electrical systems and implement sustainable solutions
* Develop and actively execute preventive maintenance plans from scratch to improve equipment reliability and uptime
* Support installation, commissioning, and upgrades of new equipment and production systems
* Ensure strict compliance with safety standards (LOTO, high-voltage procedures, etc.)
* Maintain clear and accurate technical documentation
* Act as a reliable go-to technician on the shop floor, supporting operations with minimal supervision
* Contribute to and actively improve the maintenance workshop (tools, equipment, layout, and processes), bringing in practical ideas to increase efficiency, organization, and overall maintenance effectiveness
Plant Operations and Production Support
* Contribute hands-on to commissioning, plant modifications, and installation of new production lines
* Support commissioning and ramp-up activities by operating equipment, handling materials, and assisting daily plant operations as needed, ensuring safe and efficient execution
* Maintain high standards of safety, housekeeping, and compliance, while proactively improving equipment reliability, production processes, and site safety
REQUIRED QUALIFICATIONS AND EXPERIENCE
* Completed vocational training as a Mechatronics Technician, Industrial Electrician, or equivalent
* Several years of proven industrial experience in both mechanical and electrical maintenance
* Ability to read and interpret mechanical drawings, P&IDs, and electrical schematics
* Demonstrated ability to work independently across disciplines (not specialized in only one area)
* Hands-on experience with high-voltage systems (required)
* Strong understanding of industrial equipment, piping systems, and electrical infrastructure
* Experience with PLC-based systems and industrial automation is a strong advantage
WHAT WE EXPECT
* You are a doer, not a trainee, and can execute safely and independently without constant guidance
* Strong ownership mindset with consistent, reliable delivery
* Comfortable switching between mechanical and electrical work as needed
* High awareness of safety standards, especially in high-voltage environments
* Practical, solution-oriented mindset suited for a fast-paced industrial startup environment
* Flexibility: Willingness and ability to work in a shift system to support operations.
Why us?
At tozero, we believe in providing a supportive and enriching work environment to help our team achieve top performance:
* Free snacks and drinks in the office
* Jobticket with fully subsidized Deutschlandticket for commuting across Germany
* Dynamic startup environment working closely with experts in a fast-moving deep-tech company shaping the future of battery recycling and sustainability
About us
Welcome to tozero, Europe's leading deep-tech startup in the recycling of lithium-ion batteries. With the goal of combating climate change and advancing the circular economy, we are actively developing sustainable recycling solutions for a clean and innovative future.