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Battery Process Engineer at tozero | Burgkirchen an der Alz
Employer: tozero GmbH
Sector: Lithium-ion battery recycling and process engineering
Location: Burgkirchen an der Alz, Bavaria, Germany — Plant (Gendorf)
Open roles: 1
Employment information: Full-time, permanent employee; Plant (Gendorf)
The Senior Process Engineer position with tozero GmbH in Burgkirchen an der Alz brings chemical-process design into direct contact with battery-material recovery. This full-time, permanent employee position at Plant (Gendorf) concentrates on the engineering needed to recover graphite and lithium, using evidence from operating processes to shape future plant work.
The published scope is suited to an engineer who can move deliberately between calculations, process documentation, plant data and equipment commissioning. Rather than treating scale-up as a purely theoretical exercise, the work calls for design choices that are tested against operational and experimental evidence, then translated into practical systems for industrial use.
Opportunity Details
Engineering the next stages of graphite and lithium recovery
From operating evidence to robust process design
tozero GmbH describes the post as a technical role spanning technology development, process engineering and industrial scale-up. Its stated focus is the design, scale-up, commissioning and ramp-up of battery-recycling processes, particularly the process steps for graphite and lithium extraction. The vacancy places equal importance on understanding plant data and on deciding what process should be engineered at different scales.
At Plant (Gendorf), the engineer is expected to turn pilot and industrial operating data into design criteria and scale-up assumptions. This includes using mass and energy balances, process-flow documentation, piping and instrumentation documentation, process descriptions and equipment specifications as connected parts of an engineering basis. The task is not limited to preparing documents; the information must inform equipment sizing and future capacity-expansion decisions.
The role also links design with implementation. It covers commissioning, performance validation, process-safety reviews, operating documentation and handover to Operations after a system satisfies its design criteria. Collaboration with Research and Development, Operations, data specialists, suppliers and external engineering partners is embedded in the official description because the engineering decisions depend on data, process knowledge and installation experience. Review of supplier documentation supports that connected process-engineering workflow.
About the Employer: tozero GmbH
Recovering critical materials from lithium-ion batteries
A circular-materials process stated by the employer
tozero GmbH develops recycling solutions for lithium-ion batteries. On its official site, the company describes a process intended to recover critical raw materials from lithium-ion batteries and return fresh raw materials to the supply chain. Lithium and graphite are central to that stated approach, which is framed around reducing the environmental footprint of batteries and supporting material reuse.
The employer states that it is scaling a lithium and graphite recovery line and building a commercial demonstration plant. Its vacancy connects the engineering work to graphite and lithium extraction as well as post-processing, so the process discipline in this position sits close to the material-recovery technology rather than being a general manufacturing assignment.
A demonstration facility at the Gendorf site
Plant development alongside process engineering
The official employer material identifies the Gendorf Chemical Park in Burgkirchen as the setting for a commercial demonstration facility in an existing building. It describes the facility as a technological basis for further commercial production and notes that the chemical-park infrastructure is designed for chemical and process industries. The listed role is assigned to Plant (Gendorf), giving its design and commissioning duties a clear operating context.
The vacancy says the technology is progressing from industrial operations toward larger, more standardised plants. For the engineering team, that means learning from current plant performance while preparing the design basis for subsequent facilities. The employer specifically connects this progression with process performance, equipment selection, capital expenditure and the technical architecture of future facilities; the job advertisement therefore centres on evidence-led engineering decisions.
Open Positions
1. Senior Process Engineer (Senior Process Engieer)
Official title: Senior Process Engieer
Location: Burgkirchen an der Alz, Germany — Plant (Gendorf) Employment information: Full-time, permanent employee; Plant (Gendorf)
This senior engineering post is responsible for key process-design work for future plant capacity. The engineer will establish and review the process basis behind expansions, convert plant learning into reliable design inputs, and test whether design assumptions remain supported by validated operating information. The official description emphasises engineering fundamentals over assumptions that have not been tested against data.
A substantial part of the work concerns the process steps that influence yield, purity and stability in graphite and lithium extraction. The successful candidate will examine what data reveal about expected and actual performance, guide the technical use of that evidence, and help carry the resulting process design through equipment review, commissioning, validation and operational handover.
Responsibilities
- Lead key process-design activities for future plant capacity, including the development and review of process-flow documentation, piping and instrumentation documentation, mass and energy balances, process descriptions and equipment specifications.
- Translate pilot and industrial operating results into reliable engineering design criteria and scale-up assumptions, supported by process calculations and equipment sizing.
- Apply chemical-engineering fundamentals to optimise graphite and lithium extraction and post-processing, identifying the factors that affect yield, purity and process stability.
- Evaluate experimental and operational data, build and validate mass balances and process models, and identify differences between anticipated and actual process performance.
- Specify the data needed for future scale-up decisions and give technical direction to data analysts and other engineering functions so that models remain physically and chemically grounded.
- Participate in factory and site acceptance activities, commissioning work and process-performance validation for new equipment and plant expansions.
- Create acceptance and process-validation criteria from the original design intent, then assess commissioning and operating evidence against calculated performance targets.
- Turn engineering intent into standard operating procedures, operating envelopes and process documentation, while contributing to HAZOP, LOPA and other process-safety reviews.
Qualifications
- Degree in Chemical Engineering, Process Engineering, Metallurgical Engineering or a related technical discipline.
- Strong experience in process design and scale-up, including process-flow documentation, piping and instrumentation documentation, mass and energy balances, and equipment sizing.
- Ability to work with industrial datasets and translate operating evidence into engineering models and decisions.
- Experience supporting commissioning and process validation for industrial equipment or plants.
- Familiarity with process-safety methods such as HAZOP and LOPA.
- Ability to review vendor proposals critically and challenge technical assumptions with confidence.
- Preferred: process-engineering experience in chemical, hydrometallurgy, battery, mining, minerals, recycling or related process industries, with expertise in graphite and lithium extraction and post-processing.
- Preferred: experience in solid-liquid separation, precipitation, flotation, hydrometallurgy or mineral processing.
Skills and Competencies
- Strong chemical- and process-engineering fundamentals, combined with the ability to use both first-principles engineering and plant data.
- Confidence moving between detailed calculations, engineering documentation and the operational plant setting.
- Clear communication across Research and Development, Engineering, Operations, suppliers and external engineering partners.
- Fluent English; German is an advantage.
- Technical judgement for equipment proposals, process performance, operability and scalability.
Benefits and Employment Information
- Full-time, permanent employee position at Plant (Gendorf).
- The published vacancy does not disclose salary or additional benefits.
Application Guidance
Show the connection between data, design and plant execution
Practical preparation for a senior process-engineering discussion
Plant results are the natural yardstick for a process engineer, so show where your technical analysis changed an outcome. Candidates may choose examples in which operating or pilot data changed a design decision, a mass balance exposed a performance gap, or a calculation informed equipment sizing. Explain the engineering question, the available evidence, the reasoning applied and the outcome without disclosing confidential information from a previous employer.
It is also useful to prepare a concise account of commissioning or validation work. The official scope reaches from design criteria through acceptance activities, safety review and operational handover, so an example that shows careful coordination between engineering, operations and suppliers can be more informative than a broad list of projects. Where relevant, applicants can distinguish their direct responsibilities from those held by a wider project team.
- Outline one scale-up decision that was supported by pilot or operating data, including the assumptions that were checked.
- Prepare a clear example involving a mass or energy balance, process calculation, model validation or equipment-sizing exercise.
- Describe experience with commissioning, acceptance testing or performance validation, using precise technical language.
- Summarise any work with graphite, lithium, hydrometallurgy, mineral processing or related separation processes, where applicable.
- Review how you have contributed to a HAZOP, LOPA or comparable process-safety review and what you learned from it.
How to Apply
Submit Your Application Through the Verified Route
Use the employer's official application form
tozero receives applications for this vacancy through its official application form, opened from the button below. The form identifies a CV as a required upload and allows an additional optional document, so applicants can keep the supporting material relevant to the engineering scope and easy to review.
The form also asks candidates to explain their interest in tozero and the fit with the role. A brief, evidence-based response can refer to process design, scale-up, data analysis, commissioning or recovery-process experience that genuinely matches the published responsibilities. Because fluent English is stated for the position, clear English technical writing will support a readable application.
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