Join to apply for the Mechanical Development Engineer role at StirLight | Friction Stir Welding

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Join to apply for the Mechanical Development Engineer role at StirLight | Friction Stir Welding

Role type: On-site with flexible working options

We are a small, hands-on team, so this role is primarily workshop-based, but we are open to flexible hours and occasional remote work where possible.

Hours: Full-time

Starting: From 1 st September 2025

Do you want to help shape the future of intelligent, low-carbon manufacturing and see your work deployed in real-world aerospace and automotive projects from day one?

About StirLight

At StirLight, we are experts in Friction Stir Welding (FSW) – a solid-state joining process used in the aerospace, automotive, and energy sectors. But we are not just a welding company. We are building the next generation of data-driven manufacturing systems, combining deep domain expertise with sensor technologies, real-time quality control, and applied AI.

We work hands-on with industrial partners and lead collaborative government funded R&D projects. From developing new welding techniques for exotic metals to creating intelligent sensing systems that unlock new quality assurance methods, we are at the frontier of applied engineering.

The opportunity

We are looking for a Mechanical Development Engineer with a solid grasp of engineering principles to support StirLight’s advanced welding operations. From designing and building sensing devices, tools and fixtures to helping run Friction Stir Welding (FSW) trials, this is a broad, practical role at the heart of a small, fast-moving team.

This role is ideal for someone in their early career who thrives on variety and working on projects that blend advanced manufacturing with R&D. You will get exposure to live welding trials, real-world experimentation, and collaborative work with industrial and research partners.

You’ll work alongside one of Europe’s leading FSW experts delivering real customer impact. Whether you're a recent graduate or come from a vocational route, you’ll be given room to grow, backed by strong mentorship and meaningful responsibility from day one.

Duties & Responsibilities:

• Support mechanical design and fabrication of jigs, fixtures, sensing devices and test setups
• Assist with machine setup, part handling, and welding prep
• Fixture and tooling design
• Participate in process trials, experiments, and collaborative R&D projects
• Maintain records and assist in report writing
• Work flexibly — some days are hands-on, others you’ll be documenting results or prepping setups

Key Skills and attributes:

• MEng / BEng in Mechanical, Manufacturing, or Industrial Engineering, or equivalent practical experience such as an HND, apprenticeship, or time in a hands-on engineering role.
• Experience with CAD software packages (e.g. Inventor, FreeCAD)
• Comfortable in a lab or workshop setting
• Practical problem-solving and curiosity
• Team player, organised, and willing to roll sleeves up.

Nice to Have

• Familiarity with welding or machining,
• Interest in materials testing and metallurgy
• Experience with tool/fixture building
• Experience with CNC machine programming and operation
• Exposure to quality systems or manufacturing environments

Right to Work

Candidates must have the legal right to work in the UK. We are currently unable to sponsor visa applications.

Our Corporate Values

At StirLight, we are building more than advanced welding technology, we are building a company culture we are proud of. These are the values that guide how we work, who we hire, and how we grow:

Precision Matters

From weld quality to data logging, we take pride in doing things right. Accuracy builds trust and we don't cut corners.

Own the Outcome

We are a hands-on team. Whether it's prepping a weld or writing a grant, we step up, take responsibility, and deliver.

Build with Curiosity

We test, tweak, and improve. No ego, no over-engineering, just thoughtful problem-solving and a drive to learn by doing.

Clear, Kind, and Collaborative

We speak plainly, listen well, and treat people with care. Whether working with teammates or partners, we value transparency, shared learning, and trust built through respectful collaboration.

Design for Impact

We are committed to sustainable engineering that reduces environmental impact, supports long-term thinking, and helps our clients reach their net zero goals.

Seniority level

• Seniority level

  Entry level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Manufacturing

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