About the role

CircuitHub is expanding The Grid, a sophisticated robotics platform engineered to transform electronics manufacturing by enabling high-precision, small-batch assembly operations. The company is actively recruiting mechanical engineers to take ownership of the design, construction, and deployment of automated systems directly within their production facility. This position demands a deeply practical, hands-on methodology toward hardware development, requiring candidates to shepherd projects through the entire lifecycle from initial conceptual sketches to final commissioning on the factory floor. You will be joining a core engineering team focused on solving complex automation challenges in a real-world manufacturing environment.

Key facts

- Location: Cambridge, UK
- Engagement: Full-time, Onsite
- Compensation: £45,000 - £100,000 plus equity
- Team: Engineering

What you'll do

- Design complex gantry structures and custom end effectors utilizing Fusion 360 to meet precise automation requirements.
- Enhance overall system dependability by reviewing video recordings of end effector operations and iterating on geometric designs to eliminate failure modes.
- Engineer novel mechanical subsystems specifically tailored for the handling, manipulation, and presentation of delicate electronic components.
- Physically install, commission, and debug robotic hardware installations, ensuring they meet operational specifications within the production environment.
- Liaise directly with external vendors and machine shops to coordinate the fabrication and procurement of critical mechanical components for machine builds.
- Troubleshoot and resolve electrical faults, including diagnosing motor drive failures and wiring cabinet issues, to minimize downtime.




- Partner closely with the build and assembly team to develop and enforce safe, efficient workflows for integrating mechanical sub-assemblies.
- Specify, source, and integrate sensor suites - including vision systems, force sensors, and proximity detectors - to monitor machine health, verify process quality, and detect anomalies in real-time.

Requirements

- Advanced proficiency in 3D CAD software, with a robust preference for Fusion 360 expertise, for creating production-ready models and drawings.
- Demonstrated experience designing precision-machined components and integrating them into larger, complex electromechanical sub-systems.
- A verifiable track record of physically building tangible systems, evidenced through professional engineering roles, academic capstone projects, or significant personal hardware endeavors.
- Comfort and effectiveness operating within a high-velocity startup environment where you are expected to autonomously drive projects from the design phase through to final deployment.
- Practical aptitude for hands-on assembly, alignment, and calibration of mechanical hardware using standard shop tools and metrology equipment.
- Strong written and verbal communication skills necessary for documenting designs, writing test procedures, and coordinating with cross-functional stakeholders.

Nice to have

- Working familiarity with PLC architectures, specifically the Beckhoff TwinCAT ecosystem, for motion control and I/O integration.
- Hands-on experience operating, setting up,



and programming CNC milling machines or lathes for rapid prototyping and fixture creation.
- Prior background in designing fluid handling or chemical dispensing equipment relevant to solder paste, flux, or cleaning processes.
- Experience developing optical inspection systems, structured lighting, or machine vision integration for automated quality assurance.
- Broad manufacturing knowledge extending beyond CNC machining to include sheet metal fabrication design rules, injection molding DFM, and additive manufacturing processes.
- Previous experience mentoring junior engineers or technicians, fostering technical growth within a collaborative team setting.

Skills & tools

- Fusion 360
- CAD (Computer-Aided Design)
- Robotics & Automation
- Mechanical Design & Analysis
- CNC Machining & Fabrication
- PLC Programming (Beckhoff TwinCAT)
- GD&T; (Geometric Dimensioning and Tolerancing)
- Finite Element Analysis (FEA)
- Data Acquisition & Sensor Integration
- Python / MATLAB for Test & Automation

Practical notes

This is a full-time, onsite position based in central Cambridge, UK, requiring daily presence at the production facility. The compensation range of £45,000 to £100,000 base salary plus equity is intentionally broad to accommodate a spectrum of experience levels; the company explicitly encourages applications from both early-career engineers demonstrating high potential and seasoned industry experts. Visa sponsorship details are not specified in the source listing; candidates requiring work authorization should inquire directly during the application process. The role involves significant physical interaction with machinery, including lifting, tool use, and working inside wiring cabinets.

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📌 Mechanical Engineer (Cambridge)
🏢 CircuitHub
📍 Cambridge