Principal Mechanical Design Engineer

Redline Group Ltd; Southend-on-Sea; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading company in RF and Sensing technology is seeking a Principal Mechanical Design Engineer in Essex to lead mechanical design and development efforts. The role requires strong engineering qualifications, hands-on skills, and the ability to collaborate effectively across teams. This is an exciting opportunity to contribute to projects at the forefront of technology in sectors like aerospace and medical devices.

Qualifications

• Degree qualified Engineer.
• Proficiency in CAD and FEA analysis.
• Strong knowledge of materials and manufacturing processes.
• Proven project leadership with consistent, high-quality results.

Responsibilities

• Lead mechanical design and development from customer specifications.
• Produce and maintain technical documentation.
• Contribute to design reviews and resolve technical challenges.
• Identify risks and deliver robust solutions.
• Stay updated with new technologies and support process development.

Skills

Problem-solving

Critical thinking

Creativity

Effective communication

Collaboration

Education

Degree in Engineering

Tools

CAD

FEA analysis

Job description

Overview

An exciting opportunity has arisen for a Principal Mechanical Design Engineer to join one of the leading companies in RF and Sensing technology, based in Essex. Part of a globally recognised organisation, this company is shaping innovation across the medical, aerospace, and defence industries. Their expertise has contributed to world-class projects such as the Hubble Space Telescope, cancer radiotherapy machines, and advanced driver-assistance systems in luxury vehicles. They are seeking a Principal Mechanical Design Engineer to join their R&D division. This role will be instrumental in developing new products and driving the next phase of the company's growth.

The position requires someone hands-on, adaptable in day-to-day tasks, and keen to work collaboratively with the mechanical engineering team lead, process engineers, project lead engineers, and project managers.

Responsibilities

• Lead mechanical design and development, from customer specifications through to delivery of high-quality, on-time solutions
• Produce and maintain technical documentation, including drawings, test plans, and reports
• Contribute to design reviews and resolve technical challenges in collaboration with process engineers
• Identify risks and deliver robust, independent solutions
• Stay up to date with new technologies and support process development and industrialisation

Desirable Experience / Qualifications

• Degree qualified Engineer
• Proficiency in CAD and FEA analysis
• Strong knowledge of materials, manufacturing processes, and mechanical systems
• Excellent problem-solving, critical thinking, and creativity skills
• Effective communicator and collaborative team player
• Proven project leadership with consistent, high-quality results

Requirements

Due to the nature of the sector our client is unable to offer a sponsorship, so UK working rights are required.

Opportunity Highlights

This role offers the chance to shape the next generation of products at the forefront of advanced technology. Whether you are a Senior Engineer seeking a fresh challenge or an Engineer with several years of experience looking to step up, this is an exciting career opportunity.

Apply

Apply Now: Please send your CV to (url removed) or contact Kyle Graveney at (phone number removed) / (phone number removed) for more information

Job Information

• Job Title: Principal Mechanical Design Engineer
• Company: Redline Group Ltd
• Location: Essex
• Posted: Sep 23rd 2025
• Closes: Oct 24th 2025
• Sector: Contract
• Contract: Permanent
• Hours: Full Time

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