Senior Design Engineer

Reevr; Aylesbury; On-site; GBP 52,000 - 60,000; Full time

Job summary

A growing engineering firm in Aylesbury is looking for a Senior Mechanical Design Engineer to lead the design and testing of pressure vessel assemblies and pneumatic systems. Candidates should have proven mechanical engineering experience and a background in regulated sectors. This full-time position offers a competitive salary range of £52,000–£60,000 based on experience and the chance to work on meaningful engineering projects.

Benefits

Competitive salary

Involvement in meaningful projects

Dynamic work environment

Qualifications

• Proven experience in mechanical engineering with exposure to pneumatics, hydraulics or pressure vessels.
• Background in regulated sectors like Aerospace, Maritime, Defence, or Medical Devices.
• Confident with engineering standards, drawing reviews, and stress/load calculations.
• Right to work in the UK without sponsorship.

Responsibilities

• Leading the design and testing of pressure vessel assemblies and pneumatic systems.
• Performing and approving engineering calculations and technical documentation.
• Supporting production builds and driving efficiency improvements.
• Overseeing contractor management and supply chain oversight.

Skills

Mechanical engineering

Knowledge of pneumatics

Knowledge of hydraulics

Pressure vessel design

Leadership skills

Proficient in Microsoft Office

Job description

Senior Mechanical Design Engineer

Location - Aylesbury

Salary - £52,000–£60,000 DOE

Duration - Full-time permanent position.

Join a growing engineering firm at the forefront of advanced materials and pressure vessel design, supplying systems for some of the world’s most demanding environments including defence, aerospace, commercial, and high-end marine sectors.
This rare opportunity is perfect for an experienced engineer who thrives in a hands-on, diverse role across design, development, production engineering, and project management. With the company growing at over 35% annually and backed by strong order books, now is the perfect time to make your mark.

Why Join Us?

• Work directly with the Managing Director and lead engineering initiatives
• Influence the full product lifecycle: from concept to testing to production
• Engage with global partners and government agencies
• Be a key part of a tight-knit, high-performing team in a niche, specialist market

Your Responsibilities Will Include:

• Leading the design and testing of pressure vessel assemblies, pneumatic systems, and bespoke equipment
• Performing and approving engineering calculations and technical documentation
• Supporting production builds and driving efficiency improvements
• Overseeing contractor management and supply chain oversight
• Contributing to production planning and capital investment decisions

What You Bring:

Proven experience in mechanical engineering with exposure to pneumatics, hydraulics or pressure vessels
Background in regulated sectors like Aerospace, Maritime, Defence, or Medical Devices
Confident with engineering standards, drawing reviews, and stress/load calculations
A natural leader – proactive, well-presented, and communicative

A meticulous, hands-on approach to quality and detail

Requirements:
Right to work in the UK without sponsorship
Valid UK driving licence & access to a vehicle
Excellent IT skills, particularly in Microsoft Office
Willingness to travel occasionally, including overseas
Professional, reliable, and team-oriented mindset

What We Offer:
Competitive salary £52,000–£60,000 (based on experience)
Involvement in meaningful, high-impact engineering projects
A dynamic environment where your input truly makes a difference