Senior Reliability Test Engineer

Varjo is the world-leading provider of enterprise virtual and mixed reality solutions, delivering the highest levels of immersion, performance, and security for the most demanding industrial customers globally. Used by over 25% of the Fortune 100 to transform how they operate, Varjo is known for virtual and mixed reality that look and feel as real as the real world, allowing training fighter jet pilots and astronauts, designing cars, and conducting pioneering medical research across virtual environments. With our technology, professionals can recreate the exact feeling and conditions of real life in 3D, allowing them to work and train faster, better and more cost effectively.

Founded in 2016, Varjo now operates in over 40 countries worldwide with 200 employees in offices in Helsinki and Washington D.C. Our multicultural team consists of talents from all around the world, and our daily working language is English. We believe in the power of diversity – where different experiences, backgrounds, and ideas drive innovation and results.

We are now offering you an exciting position where you can see into the future and play your part in shaping Varjo’s growth journey.

Job description

Join our world-class mechanical engineering team, part of the device hardware organization responsible for creating Varjo’s cutting-edge products. You will work alongside highly experienced and capable engineers in an environment that pushes the limits of technology.

We have recently expanded our capabilities in mechanical and thermal simulations, and in this role, you will have a direct impact on the design and quality of future Varjo products. This is your chance to shape the next generation of high-end VR/XR hardware.

What you’ll be doing

• Define, develop and execute system- and component-level hardware reliability and environmental test strategies for Varjo products.
• Plan and execute comprehensive verification and validation activities from the early R&D phase through the entire product lifecycle.
• Lead, coordinate and execute reliability and environmental testing using both in-house laboratory and external test partners.
• Create and manage test plans, detailed reports, and executive summaries to drive data-driven decision-making.
• Proactively support HW design team by providing Design for Reliability guidance during design reviews and support component qualification activities.
• Lead failure investigations and root cause analysis to identify potential design or manufacturing issues.
• Develop, implement, and improve Varjo internal reliability testing standards and processes.

Our expectations

• B.Sc. or M.Sc. on a related technical field.
• Proven track record of 7+ years in complex electro-mechanical product reliability testing, preferably within consumer electronics, optoelectronics, wearable products...
• Hands-on experience with reliability test and laboratory equipment, including environmental chambers (thermal cycling, humidity, combined), vibration and shock test systems, ingress protection test setups (IP rating).
• Willingness and ability to specify, build, and qualify new test equipment and develop of in-house laboratory capabilities.
• Deep understanding of environmental testing (e.g., thermal, humidity, vibration, drop, and ingress protection) and relevant standards (IEC, MIL-STD).
• Proficiency in reliability methodologies such as FMEA (Failure Mode and Effects Analysis), HALT/HASS, and statistical analysis (e.g., Weibull, MTBF).
• Excellent collaboration skills and the ability to support cross-functional stakeholders (Design, Project management, Sourcing, Manufacturing).
• A strong network of external testing and validation partners
• Fluency in English

This is a hands-on role in our Helsinki-based team. Because you’ll be working with physical devices and prototypes, the work will be performed mostly on site at our headquarters in Kaisaniemi. Full remote work is not possible in this role.

By joining us, you’ll get

• Opportunity to take part in creating the new state-of-the-art in virtual and mixed reality experiences.
• A low-hierarchy culture with minimal bureaucracy and maximum opportunity for you to take charge of your work. 
• An international working environment with tons of opportunities to learn and grow with the company.

Ready to jump into the exciting world of VR/XR? Apply now!