Hybrid Senior Prototype Engineer

at ŌURA

• Job title: Senior Prototype Engineer
• Job type: Full Time
• Experience level: Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Assembly
• Location requirements: Hybrid, Oulu, Finland

About the role

• Senior Prototype Engineer at Ōura overseeing mechanical lab operations for product prototyping and development. Collaborating with teams to innovate and refine hardware designs through high-quality prototyping processes.

Responsibilities

• Ownership of Mechanical Lab Operations – Oversee all mechanical laboratory equipment, tools, and facilities, ensuring safety, calibration, and readiness for development work.
• Quick Prototyping & Fabrication – Operate and maintain a 5-axis CNC machine, 3D printers, and other fabrication tools to produce precision mechanical parts and prototypes that support hardware engineering needs.
• Metal Machining & Finishing – Perform precision metal machining, milling, and finishing work with high craftsmanship and attention to visual and dimensional quality.
• Jig and Tooling Prototyping – Design and fabricate jigs, fixtures, and manufacturing tools to support product assembly, alignment, and manufacturing processes.
• 3D Scanning & Modelling – Utilise 3D scanners and CAD software to capture, refine, and iterate mechanical designs.
• Optical and CMM Measurements – Use optical measurement systems and CMM (Coordinate Measuring Machine) tools to verify dimensions, tolerances, and surface quality of machined and molded parts.
• Mold Making & Casting – Create silicone molds and prototypes to support iterative mechanical and industrial design validation.
• Process Development – Develop and implement best practices for mechanical prototyping, metrology, and documentation within Oura’s product development process.
• Facility Development – Plan and execute improvements to the Oulu mechanical lab’s infrastructure, tooling, and workflows to enhance efficiency and capability.
• Collaboration – Work closely with mechanical, industrial design, and product engineering teams to translate design concepts into high-quality, visually refined prototypes and enable rapid iteration cycles.

Requirements

• Bachelor’s degree in Mechanical Engineering, Manufacturing Technology, or a related field.
• Minimum of 5 years of hands-on experience in mechanical prototyping, machining, or lab management.
• Strong proficiency with 5-axis CNC machining, metal machining, and precision fabrication techniques.
• Experience in jig, fixture, and manufacturing tool prototyping.
• Skilled in optical and CMM measurement techniques for dimensional verification and surface inspection.
• Proven ability to achieve excellent visual and surface quality in fabricated components.
• Practical experience with 3D printing, 3D scanning, and mold casting.
• Familiarity with CAD/CAM software such as GibbsCAM, SolidWorks and Siemens NX.
• Proven ability to manage tools, equipment, and lab safety in a technical environment.
• Excellent problem-solving skills and a proactive, self-directed approach.
• Good communication skills in English.

Benefits

• Competitive salary
• Lunch benefit
• Wellness benefit
• Flexible working hours
• An Oura ring of your own
• Wellness Time Off