Mechanical Engineer (Senior)

RIVR

RIVR, part of Amazon is a robotics company pioneering Physical AI through real-world doorstep delivery. Founded in 2024 as an ETH Zurich spin-off, RIVR developed wheeled-legged robots designed to operate in complex, unstructured environments such as stairs, gates, doors, and uneven urban terrain. We believe that achieving general physical intelligence requires solving real customer problems in the real world, where robots can learn from rich operational data at scale. Following our acquisition by Amazon in March 2026, we are continuing this mission with greater reach and speed. By combining custom robot hardware, onboard autonomy, and cloud-based coordination, RIVR, part of Amazon is building the next generation of safe, reliable autonomous robots for last-mile delivery

RIVR

RIVR, part of Amazon is a robotics company pioneering Physical AI through real-world doorstep delivery. Founded in 2024 as an ETH Zurich spin-off, RIVR developed wheeled-legged robots designed to operate in complex, unstructured environments such as stairs, gates, doors, and uneven urban terrain. We believe that achieving general physical intelligence requires solving real customer problems in the real world, where robots can learn from rich operational data at scale. Following our acquisition by Amazon in March 2026, we are continuing this mission with greater reach and speed. By combining custom robot hardware, onboard autonomy, and cloud-based coordination, RIVR, part of Amazon is building the next generation of safe, reliable autonomous robots for last-mile delivery Job Description   We are looking for a hands-on and curious Test Engineer to ensure the reliability and performance of our advanced robotic systems. This is a unique, mixed-profile role at the heart of our hardware development. You will be responsible for the entire testing lifecycle: from designing and building physical test setups for mechanical components to writing scripts that automate stress and performance tests. If you love tinkering with hardware, have a knack for mechanical assembly, and enjoy using code to solve real-world problems, this role offers a fantastic opportunity to make a direct impact on the quality of our robots.  

Wabtec Faiveley Nordic AB

Who will you work with? Wabtec Faiveley Nordic AB is part of Wabtec Corporation, a system supplier to the international railway industry. We are a world-leading supplier of brake components and a service provider for the rail industry. How will you make a difference? As a Senior Mechanical Engineer, you will be an expert in understanding and optimization of our products, by supporting our production and working with purchasing, quality, laboratory and other Wabtec sites. What will your typical day look like? Support product development throughout the entire project Analyze product deviations Prepare validation plans Analyze results from both internal and external testing Give technical support to other Wabtec production Site (in India, China and USA) Collaborate with purchasing on cost reduction initiatives What do we want to know about you? Bachelor degree in Mechanical Engineering (Master degree is considered an asset) +4 years of experience in similar role in a manufacturing company Experience in product development Strong ability to analyze results from strength calculations and other advanced calculations Good CAD knowledge (Catia is considered an asset) Professional knowledge of English (Swedish knowledge is considered an asset) Strong analytical skills Strong problem solving skills Strong interpersonal communications skills Experience in product development work of casting or injection-molded goods is considered an asset