Details
Job Type
Full-time
Workplace
On-site
Level
Senior-level
Location
Tallinn, Estonia
Interested in joining Max Joule?
Send us your CV and a short introduction outlining your relevant experience.
Overview
Join Max Joule, an innovative deep-tech startup developing next-generation battery cells and energy storage systems for industries including defence, space, medical, and mining.
As a Process Engineer, you will play a key role in developing, improving, and scaling battery cell manufacturing processes, tools, and equipment. Working closely with the founders, you will contribute to process development from R&D and pilot production through validation and scale-up, while helping build the future of European battery technology.
Your responsibilities
Improve battery cell manufacturing processes through upgrades to processes, fixtures, tools, and production equipment.
Own and continuously develop manufacturing processes from mixing through cell assembly and testing.
Define process and product quality criteria and ensure appropriate follow-up and compliance.
Analyze process and quality data, identify gaps and root causes, and implement systematic continuous improvement actions.
Support internal teams and customers with quality assurance and quality-related technical topics.
Act as the key technical person for the introduction of new manufacturing processes, equipment, and production expansion.
Provide manufacturing and process-related input to the product team to support design for manufacturability and scale-up.
Train technicians on manufacturing processes, equipment operation, quality requirements, and standard work.
Support equipment procurement and implementation projects, including coordination of FAT/SAT activities.
Support facility layout development, production flow optimization, and utilities planning.
During your first months, your main focus will be improving the assembly and electrolyte injection processes and related quality performance.
What we’re looking for
Skills & Knowledge
Strong understanding of battery cell manufacturing processes, especially mixing, coating, drying, calendering, assembly, electrolyte filling, sealing, formation, and testing
Hands-on experience with pilot-scale or R&D manufacturing environments
Strong understanding of process parameters, process capability, and their impact on product performance and quality
Experience with root-cause analysis, troubleshooting, and structured continuous improvement
Knowledge of quality tools such as SPC, FMEA, control plans, 8D, and CAPA
Experience planning and evaluating Design of Experiments (DoE)
Ability to analyze process and quality data and translate findings into practical process improvements
Experience defining process specifications, work instructions, and quality criteria
Understanding of battery materials and how material properties affect manufacturability and cell performance
Experience with manufacturing equipment specification, procurement, commissioning, FAT, and SAT
Knowledge of production tooling, fixtures, and automation concepts
Ability to support equipment layout, material flow, utilities, and production expansion planning
Good understanding of EHS requirements related to battery manufacturing, chemicals, dry rooms, and production equipment
Strong technical documentation and engineering change management skills
Ability to train technicians and transfer new processes into production
Strong problem-solving skills and a hands-on engineering mindset
Experience
5+ years experience in battery manufacturing as process engineer
Experience is statistical tools
Experience with FMEA and quality control plans
Personal Qualities
Proactive and solution-oriented mindset
Ability to work independently and take ownership of projects
Hands-on approach with a strong willingness to learn
Comfortable working in a fast-paced startup environment
Able to adapt quickly to changing priorities
Willingness to work hands-on to make things happen.
What we offer
The opportunity to work on cutting-edge battery technologies
A key engineering role with real ownership and influence
Collaboration directly with the company founders
Participation in the employee stock option programme
Full-time employment contract
All necessary work equipment
Business trips to international equipment vendors
Excellent career growth opportunities in a rapidly expanding deep-tech startup with the potential to grow into a leading role