Maintenance System Engineering Intern

Tozero is a materials and green technology company focused on lithium-ion battery recycling, with a mission to close the loop on battery materials and support the transition to a circular economy in the electric vehicle and energy storage sectors. The company develops and operates processes to recover critical raw materials from spent batteries, reducing dependence on virgin mining and lowering the environmental footprint of battery supply chains. Their work addresses one of the most pressing challenges in the clean energy transition: what to do with batteries at end of life. Tozero positions itself as a done-for-you infrastructure provider for heavy-duty fleet operators, offering uptime and battery lifecycle services that help fleets manage battery health, longevity, and end-of-life processing. By integrating battery management with recycling infrastructure, the company enables fleet operators to maximize the value of their battery assets while ensuring responsible disposal and material recovery. What makes Tozero distinctive is its vertically integrated approach, combining operational fleet support with downstream recycling capabilities. This dual focus allows the company to serve both the immediate needs of fleet electrification and the longer-term material recovery goals of a sustainable battery economy, making it a unique player at the intersection of fleet services and green materials technology.

ABOUT US

Tozero is Europe's leading deep-tech startup specializing in the recycling of lithium-ion batteries.
Committed to accelerating decarbonization and transforming the material life cycle, we’re actively
crafting sustainable recycling solutions for a cleaner and more innovative future.

WHAT WE'RE LOOKING FOR

This role combines maintenance engineering, spare parts management, CMMS administration
and hands-on support in our production facility. The successful candidate will work closely with
both the engineering team in Munich and the operations team in Gendorf to improve equipment
reliability and maintenance processes.
Reporting to the Maintenance department lead, the successful candidate will work closely with the
Head of operations, Maintenance mechanical engineer, and external equipment suppliers to
support reliable day-to-day plant operation and continuous improvement initiatives

WHAT YOU CAN EXPECT

1. Operational coordination & spare parts logistics
Inventory & supplier management:
Identification of critical spare parts, inventory optimization to minimize downtime, and direct
communication with equipment manufacturers for parts procurement and technical support.
Equipment standardization:
Analyzing and unifying components (e.g., pumps and seals) to reduce spare parts inventory
levels and enable faster maintenance interventions.
2. CMMS & technical documentation
CMMS (computerized maintenance management system) management:
Entering new equipment, updating the database according to field conditions, and tracking
preventive maintenance records (full training on our CMMS system will be provided).
Technical archiving:
Maintaining technical manuals, CE certifications, intervention reports, and tracking
contracts with external service providers and inspectors.
3. Hands-on support & Gendorf operations
Field work (Gendorf ~ 2 days per week):
On-site presence to monitor ongoing operations and act as a direct liaison with
management in Munich.
Assistance to mechanical engineer:
Hands-on assistance during the servicing and installation of mechanical subsystems
(pumps, piping, gearboxes, mixers, filter presses, heat exchangers).
4. Process improvement & SOPs (standard operating procedures)
Equipment reliability:
Data-driven failure analysis (transitioning from subjective assessment to component
lifespan analysis).
SOP & design for maintenance:
Creating and reviewing standard operating procedures and participating in the early stages
of new system development to ensure future maintainability.

Your profile

• Structured way of working
• Curiosity and willingness to learn
• Interest in mechanical systems
• Comfortable working both in the office and on the shop floor
• Strong communication skills and ability to work independently
• Category B driver’s license (required for trips to the Gendorf facility, company car provided).
• Nice to have:
• Welding experience or knowledge of welding techniques.
• Prior exposure to CMMS software or experience in the process/manufacturing industry.

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: Stay energized throughout the day with a variety of
snacks and beverages.
Jobticket: Conveniently commute to work and all around Germany with our fully subsidized
Deutschlandticket.
Dynamic Startup Environment: Thrive in a highly dynamic startup culture, collaborating with
experts in the field and contributing to innovative projects that shape the future.