Mechanical Engineer

Cogito; Braintree; On-site; GBP 45,000 - 60,000; Full time

Job summary

A leading engineering company is seeking a highly skilled Mechanical Engineer to develop high voltage components and systems. In this role, you'll design robust solutions while ensuring manufacturability and reliability. You'll utilize 3D CAD and FEA tools to conduct prototype testing and refine designs. The ideal candidate has a strong mechanical design background, a Bachelor's degree in Mechanical Engineering, and demonstrable experience in GD&T. This role offers an opportunity to mentor less experienced engineers and continuously improve engineering practices.

Qualifications

• Demonstrable experience producing mechanical designs across several projects.
• Strong understanding and application of GD&T in accordance with BS 8888.
• Ability to justify design decisions using engineering principles, calculations, and data.

Responsibilities

• Design and develop HV components and systems including insulation structures.
• Produce detailed 3D CAD models and engineering drawings.
• Plan and conduct prototype and HV withstand testing.

Skills

Mechanical design expertise

3D CAD modeling

Dielectric design principles

Root cause analysis

FEA tools usage

Technical documentation

Education

Bachelor's degree in Mechanical Engineering

Job description

We are seeking a highly skilled Mechanical Engineer to join our team. This role is ideal for someone who thrives in a technical environment, enjoys taking ownership of complex design challenges, and can deliver high‑quality engineering solutions across multiple projects.

You will play a key role in designing, developing, and industrialising next‑generation high voltage components and systems, ensuring reliability, manufacturability, and technical excellence.

Key Responsibilities

• Design and develop HV components and systems including insulation structures, connectors, and mechanical assemblies.
• Produce detailed 3D CAD models and engineering drawings in accordance with BS 8888.
• Apply dielectric design principles to manage electric field stress, insulation integrity, and long‑term system reliability.
• Take full ownership of design solutions from concept through prototype validation and industrialisation.
• Plan and conduct prototype and HV withstand testing, interpreting results to refine designs.
• Use engineering calculations and FEA tools to correlate analysis with testing and optimise mechanical and electrical performance.
• Validate engineering decisions using evidence, testing results, and sound engineering judgement.
• Produce clear and structured technical reports, design documentation, and presentations.
• Ensure solutions are robust, manufacturable, and aligned with cost, schedule, and technical constraints.
• Independently identify root causes and implement effective engineering solutions.
• Communicate technical concepts and design decisions clearly across multidisciplinary teams.
• Build strong working relationships with engineering, manufacturing, suppliers, and customers.
• Understand customer technical requirements and translate them into practical engineering solutions.
• Represent the engineering team confidently during technical discussions with customers.
• Act as a trusted technical contributor and role model within the team.
• Guide and mentor less experienced engineers with constructive feedback and knowledge sharing.
• Proactively identify opportunities to improve designs, processes, and engineering best practices.
• Develop expertise continuously and apply new learning to strengthen technical output.

About You

• Demonstrable experience producing mechanical designs across several projects.
• Strong understanding and application of GD&T in accordance with BS 8888.
• Evidence of practical engineering application in previous roles.
• Ability to justify design decisions using engineering principles, calculations, and data.
• Prototype testing, result interpretation, and iterative design refinement.
• Experience correlating test data with analysis and improving designs using FEA.
• Background in concept generation, ideation, and industrialisation of mechanical systems.
• Bachelor’s degree in Mechanical Engineering or equivalent – or significant relevant experience.