Tozero

Maintenance System Engineering Intern

Munich HQ (Karlsfeld), Germany full-time Mid Salary not listed
full-time Mid level Technology & IT Curated
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About the role

ABOUT USTozero 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 FORThis 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 EXPECT1. 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 profileStructured 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.
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Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Mid
Technology & IT Administration Data Analysis MySQL Operations Writing Mid level

Likely questions

  1. Tell us about work you have done that is close to the Maintenance System Engineering Intern role.
  2. How would you approach your first 30 days at Tozero?
  3. Which of Administration, Data Analysis and MySQL have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with Administration, Data Analysis and MySQL.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Maintenance System Engineering Intern role because I can bring practical experience in Administration, Data Analysis and MySQL, learn the team quickly, and contribute to the outcomes Tozero needs from this hire.

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