About Sirona Technologies

At Sirona Technologies, we are developing direct air capture (DAC) technology to remove CO2 from the air and combat climate change. We are a young startup and are now scaling up our prototypes into industrial machines ready for mass production.

We are looking for an exceptional and mission-driven build & test engineer to drive the end-to-end planning and execution of our hardware builds. You’ll translate engineering work orders into structured build plans, manage workshop operations, and work hands-on with engineers and technicians to accelerate how we assemble our machines.

Responsibilities

As a Build & Test Engineer, you will:‍

• Own the build planning process, define and maintain a detailed Gantt-style schedule with linked work orders across teams.
• Review and sequence work orders with engineers to ensure efficient execution.
• Coordinate the right people, materials, and tools to get each task done, from sub-assemblies to full machine builds.
• Manage the workshop environment: safety, layout, workflows, and daily operations.
• Build and test sub-assemblies yourself, or with the team, using hands-on skills in mechanical, electrical, and pneumatic systems.
• Review and sequence full system test orders with engineers.
• Plan and drive full-system testing of completed machines (e.g. containerized DAC units) according to test orders.
• Spot inefficiencies and propose smart, fast, and cost-effective improvements to our build process.
• Collaborate with designers and engineers to give feedback and simplify future builds.

Requirements

• Bachelor’s or Master’s degree in Mechanical Engineering, Electro-mechanical Engineering, Electrical Engineering, Industrial Engineering or a related field with a focus on practical engineering
• Experience building complex hardware systems, ideally from first prototypes to series production.
• Strong understanding of how mechanical, electrical, and pneumatic systems come together.
• Experience managing hardware workflows, build plans, and workshop logistics.
• Agile mindset: resourceful, creative, and able to find scrappy solutions that work.
• Excellent organizational and communication skills, both in planning and on the workshop floor.
• Hands-on and proactive, with a strong sense of ownership and urgency.
• Strong English verbal and written communication skills
• Strong problem-solving skills
• Smart but humble, with a bias for action

Nice to haves

• Familiarity with manufacturing processes (e.g., CNC machining, metal fabrication, component sourcing) and material management.
• A strong network of suppliers (machinists, metal cutters, injection molders, etc.) and knowledge of the strengths and weaknesses of global supply chains (e.g., Europe vs. China).

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