Mechanical Engineer (Process Equipment and Plant Design)

Your Mission

Radical Dot is hiring for a skilled Mechanical Engineer (m/w/o) who will fearlessly lead efforts on the scale up development of our breakthrough technology to recycle mixed plastic waste into key chemical building blocks moving beyond pyrolysis, gasification and other know technologies.

As an early-stage start-up, we are looking for a hands‑on engineer who thrives in a dynamic and multi‑disciplinary environment. You will play a critical role in the run of our upcoming demonstration plant (100‑200 kg/day input plastic), contributing directly to the success of our mission to address the global plastics crisis.

Tasks

Your Role

You will be responsible for the mechanical design, specification, and integration of process equipment for our demonstration plant. Working closely with process engineers and EPC partners, you’ll ensure that all mechanical components meet performance, safety, and reliability standards.

Your Responsibilities

• Equipment Design & Specification

• Support preliminary sizing of piping, reactors, heat exchangers, pumps, compressors, and separators including mechanical supports for the equipment (racks, frames)

• Prepare mechanical datasheets and review vendor specifications

• Evaluate custom‑built and proprietary equipment for process compatibility

• Assist in defining mechanical interfaces and layout constraints

• Vendor Coordination & Procurement Support

• Participate in vendor selection and technical evaluations

• Review fabrication drawings and ensure compliance with specifications

• Support factory acceptance tests (FAT) and quality inspections

• Track delivery schedules and coordinate with EPC procurement teams

• Construction & Commissioning Support

• Provide technical oversight during equipment installation

• Resolve mechanical integration issues on‑site

• Support cold commissioning and mechanical performance testing

• Document mechanical systems and contribute to handover packages

Requirements

Your Skillset

• Degree in Mechanical Engineering or related field
• 3+ years of experience in process plant design or equipment engineering
• Familiarity with process industries (chemical recycling, oil&gas, chemicals, pharma, energy, etc.)
• Understanding of pressure vessels, rotating equipment, and piping systems
• Experience with CAD tools (e.g. AutoCAD, SolidWorks, Plant 3D)
• Experience with pilot projects, startups, or fast‑paced, high‑iteration environments is a plus
• Demonstrated ability to anticipate technical issues and apply creative, hands‑on problem‑solving in fast‑paced environments.
• Comfortable working in a small, agile team with a proactive and flexible mindset.
• Fluent in English; German proficiency is a plus

Your Mindset

• Innovative and creative , ready to find solutions for problems no one has solved before.
• Passionate about impact and contributing to the fight against climate change.
• Adaptable and flexible , to embrace the fast‑paced changing environment of start‑ups.
• Collaborative , as the world biggest problems are solved as a team.
• Have strong safety awareness , this is still chemistry!
• Personal growth mindset , ready to take more and different responsibilities with the growth of the company.