Senior Mechanical Engineer, Energy Storage Systems (BESS)

Lyten Poland Sp. z o. o; Województwo pomorskie; On-site; PLN 180,000 - 260,000; Full time

Job summary

Lyten Poland Energy Storage Systems (BESS) team is seeking a Senior Mechanical Engineer to lead mechanical development of Li‑ion battery modules, packs, racks, frames, and enclosures for grid‑scale and commercial energy storage.

You will collaborate with cross‑functional teams in Poland and Sweden, apply DFM and safety considerations, and create detailed drawings for manufacturing while ensuring manufacturability and reliability.

Qualifications

• Bachelor’s or Master’s degree in Mechanical Engineering or equivalent.
• Minimum 5 years of mechanical design experience, with exposure to cell integration or high‑performance Li‑ion battery systems.
• Experience with various mechanical joining methods.
• Strong hands-on experience with CAD tools.
• Excellent written and spoken English.
• Experience in a start-up or fast‑growing environment is a plus.

Responsibilities

• Take responsibility for the mechanical development of Li‑ion battery systems, including modules, packs, racks, frames, and enclosures.
• Interact with customers to understand product use cases and technical requirements throughout the project lifecycle.
• Brainstorm and develop early product concepts with cross‑functional teams.
• Perform mechanical design considering loads, vibrations, and structural integrity.
• Design protective enclosures to resist environmental impacts and pollution.
• Apply DFM and cost optimization principles.
• Create detailed technical drawings for customers and manufacturing.
• Participate in prototyping activities for newly designed components.

Skills

Mechanical design

CAD tools

English proficiency

Cross-functional collaboration

Problem solving

Education

Bachelor’s or Master’s in Mechanical Engineering

Job description

Lyten Poland Energy Storage Systems (BESS) team is seeking a Senior Mechanical Engineer to lead mechanical development of Li‑ion battery modules, packs, racks, frames, and enclosures for grid‑scale and commercial energy storage.

You will collaborate with cross‑functional teams in Poland and Sweden, apply DFM and safety considerations, and create detailed drawings for manufacturing while ensuring manufacturability and reliability.