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Open nowPosted 6 days ago

Mechanical Engineer (Energy Storage Systems) (m/f/x)

Workable (global search)107,990 open roles

Where
Tallinn, Harju County, Estonia
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Your applicationOpen nowMechanical Engineer (Energy Storage Systems) (m/f/x)Workable (global search) · Tallinn, Harju County, Estonia

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Early applications get read.

7.9% of postings close within 7 days. Measured by our own scanner across the market. Workable (global search) postings stay open a median of 6 days.

Share of postings closed within
  1. 1.6%1 day
  2. 3.6%3 days
  3. 7.9%7 days
  4. 14.9%14 days
  5. 34.0%30 days
This job: posted 6 days ago

Workable (global search) median: 6 days open

The posting

Skeleton is looking for a driven and detail-oriented

Mechanical Engineer (Energy Storage Systems)

to join our Product Development department.

You will design and deliver energy storage system solutions that meet customer, technical, and regulatory requirements by supporting product development, validation, risk mitigation, and cross-functional collaboration throughout the project lifecycle.

Responsibilities

Your key responsibilities include:

  • Develop energy storage system deliverables in line with project and development requirements.
  • Translate customer requirements into effective design solutions.
  • Review applicable standards and requirements and document compliance.
  • Contribute to mechanical team capability development in electrical system design.
  • Support product design, prototyping, testing, and risk mitigation activities.
  • Provide technical guidance to internal teams and external partners/suppliers.
  • Support customer discussions and collaborate with procurement to achieve target cost.
  • Ensure alignment with company processes and updates.

Requirements

  • Degree in Mechanical Engineering or related field.
  • 5+ years’ experience in mechanical design for electrical or energy storage systems.
  • Experience with power systems, batteries, or grid solutions.
  • Proficiency in SolidWorks and PDM systems.
  • Understanding of electrical parameters, standards, and development processes.
  • Knowledge of quality tools (e.g. DFMEA).
  • Strong technical communication and English skills.
  • Analytical, structured, and collaborative mindset.
  • Nice to Have:
  • Experience in automotive, battery, or supercapacitor industries
  • Basic scripting or data analysis skills

Benefits

  • We offer flexible working hours, with the possibility of mobile working without core working hours and sufficient freedom for your own ideas.
  • A flat hierarchy culture - fostering our great working atmosphere.
  • A motivating opportunity for continuous growth at Skeleton.
  • An additional day off every year for your birthday.

About Skeleton

Skeleton Technologies is a global leader in critical power infrastructure for AI data centers and electrical grid stability, founded in 2009. Power today is more than electricity.

It is national security, digital continuity, and economic resilience. Skeleton is the Backbone of Power: equipping AI data centers, electrical grids, defense systems, and critical infrastructure with the resilience to withstand surges, instability, and failure. Our power systems protect GPU clusters from millisecond-level spikes, enable hyperscalers to run at higher rack densities without grid compromise, and make AI data centers up to 40% more energy efficient. We keep the lights on when grids fluctuate, stabilizing electrical infrastructure under the combined pressure of accelerating renewable energy deployment and surging AI demand.

When power fails, critical operations stop. We exist to prevent that in microseconds. Powering the infrastructure that powers everything else.

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