Mechanical Engineer (m/w/d)

Job Description

LIQUIDLOOP GmbH has an immediate opening for a Project Manager based in Berlin, Germany. We seek an enthusiastic and conscientious candidate to join our diverse and talented team to push the frontiers of crucial technology in the fight to reduce CO2 emissions.

With Liquidloop, we aim to provide tools that empower researchers and industries to make a real impact on global emissions. We currently focus on developing a laboratory research instrument for electrochemistry, a field that will enable energy transition and shift from use of fossil fuels to green, sustainable fuels and chemicals coming from renewable energy sources.

In this position, you will become part of a vibrant interdisciplinary team developing a novel chemical analysis instrument that are more precise, efficient, and cost-effective than others currently available.

Our history

LIQUIDLOOP technology reveals a unique approach for real-time chemical monitoring due to many years of development. Founded in 2021, LIQUIDLOOP is the first exclusive liquid real-time detection company focusing entirely on the carbon-neutral fuels research. In 2022 LIQUIDLOOP set up production of its first devices and delivered them to academic customers. As of today, the LIQUIDLOOP product portfolio counts already with many commercialised product devices.

Your Responsibilities

Production & System Assembly

• Assemble and integrate hardware components such as vacuum pumps, pneumatic actuators, valves, sensors, and fluidic systems
• Build mechanical frames, front and back panels, structural components, and device enclosures
• Follow internal production and assembly guidelines to ensure consistent and reproducible device manufacturing
• Work closely with production management to coordinate assembly tasks and production workflows
• Support production assessment and troubleshooting during device assembly and system integration

System Validation & Diagnostics

• Test and validate vacuum, gas handling, and fluidic subsystems (leak testing, sealing integrity, pressure stability)
• Perform diagnostic tests and performance validation on assembled systems
• Identify potential technical issues and support system debugging and optimization

Quality Assurance & Documentation

• Participate in quality assurance checks during development and after final assembly
• Report and document non-conformities, contributing to root-cause analysis and corrective actions
• Ensure production documentation and assembly procedures remain accurate and up to date

CAD & Technical Documentation

• Maintain and update CAD models and technical drawings of mechanical assemblies
• Interpret and follow complex technical diagrams, system schematics, and mechanical layouts
• Support the preparation of technical documentation for production and certification processes

Process Development

• Support the implementation and improvement of assembly and production workflows
• Contribute to the development of structured production protocols and QA procedures
• Track tasks and progress through our project planning and Gantt-based project management tools

Your Profile

• Bachelor's or Master's degree in Mechanical Engineering, Mechatronics, Industrial Engineering, or related field
• Experience with hardware assembly or production of technical systems or scientific instruments
• Strong ability to interpret technical drawings, schematics, and complex system diagrams
• Experience with CAD software (SolidWorks, Fusion 360, Inventor, or similar)
• Hands-on experience with workshop machinery (drill press, milling machine, disk cutter, etc.)
• Structured and independent working style with strong attention to detail
• Ability to collaborate closely with production management and engineering teams
• Strong communication skills in English (written and spoken)
• German at minimum A2 level required, B2+ proficiency is a strong plus

What We Offer

• A dynamic start-up environment working on advanced electrochemical and analytical instrumentation
• The opportunity to take ownership of production processes and hardware development
• Hands-on work with technologies at the interface of electrochemistry, vacuum science, mechanics, and fluidics
• A flexible and collaborative work environment within an international deep-tech team

Skills & Functions You'll Engage In

• Hardware assembly and device integration
• Mechanical and fluidic system validation
• Vacuum and gas handling system diagnostics
• CAD design and mechanical documentation
• Quality assurance and system verification
• Production workflow optimization
• Cross-team collaboration with electronics, software, and production engineers

Perks

• Competitive salary

Team

• Opportunity to work on innovative projects with a talented and passionate team.

Access to specialized tools

• Access to state-of-the-art tools and resources including 3D printers, laser cutters, and more.

Coworking experience

• Vibrant coworking environment with regular community events and workshops.

Balance

• Flexible work schedule and a supportive work-life balance.

Location

• Convenient location in the heart of Berlin's startup ecosystem.

LIQUIDLOOP values the diversity of its coworkers and is committed to the goals of equal opportunities, and applications from qualified female/diverse candidates are especially encouraged. For further questions, please don´t hesitate to contact us.

To apply for a job with LIQUIDLOOP, please apply in our contact form including:

• cover letter explaining why you want to work with us
• your up-to-date C.V.