Senior Test Engineer, Lappeenranta

Skeleton Technologies GmbH; Lappeenranta; On-site; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Flexible hours

Mobile work

Flat hierarchy

Growth opportunities

Birthday day off

Job summary

Ideal candidates bring a strong engineering background, Python expertise, and hands-on testing experience with measurement equipment. The role offers flexible hours and a culture that values growth and independence.

Qualifications

• Educational background in engineering (electrical or related).
• Programming skills in Python.
• Knowledge of Robot Framework and/or pytest is an advantage.
• Experience with bi-directional power supplies, electronic loads and measurement systems is an advantage.
• Familiarity with test planning, execution and reporting.
• Hands‑on experience with measurement systems and test setups.
• Ability to work independently and manage multiple tasks effectively.
• Strong communication skills in English and Finnish.
• Experience with Teamcenter and Polarion is an advantage.
• Previous experience in a similar role or strong motivation to learn.

Responsibilities

• Develop and maintain test automation for validation and verification test programs.
• Develop and maintain testing systems.
• Develop and improve test and reporting methods and procedures.
• Plan and execute product validation and verification test programs.
• Create detailed test plans and comprehensive reports, and develop automation for report creation.

Skills

Test automation

Python

Electrical engineering

Quality assurance

Education

Engineering degree (Electrical or related)

Tools

Robot Framework

pytest

Teamcenter

Polarion

Job description

Skeleton Technologies is looking for a Senior Test Engineer to join our team in Lappeenranta.

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 more 40% energy efficient. We keep the lights on when grids fluctuate, stabilising 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.

Responsibilities

• Develop and maintain test automation for validation and verification test programs.
• Develop and maintain testing systems.
• Develop and improve test and reporting methods and procedures.
• Plan and execute product validation and verification test programs.
• Create detailed test plans and comprehensive reports, and develop automation for report creation.

• Educational background in engineering (electrical or a related field).
• Programming skills in Python.
• Knowledge of Robot Framework and/or pytest is an advantage.
• Experience with bi-directional power supplies, electronic loads and measurement systems, as well as controlling environmental chambers, is seen as an advantage.
• Familiarity with test planning, execution and reporting.
• Hands‑on experience with measurement systems and test setups.
• Ability to work independently and manage multiple tasks effectively.
• Strong communication skills in English and Finnish.
• Experience with Teamcenter and Polarion is seen as an advantage.
• Previous experience in a similar role or a strong motivation to learn.

• 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.