Senior Mechanical Design Engineer / Mechanical Design Engineer

At Oxford Instruments Andor, we are passionate about enabling the world’s greatest scientific breakthroughs. Our advanced imaging, spectroscopy and microscopy solutions support pioneering research and industrial innovation across a wide range of applications—from developing cancer treatments to exploring deep space and advancing clean energy technologies.

Guided by our core values of Inclusive, Innovative, Trusted and Purposeful, we are committed to creating technologies that make a meaningful impact on the world around us.

The Opportunity

We are seeking a Senior Mechanical Design Engineer or Mechanical Design Engineer to join our Engineering team in Belfast. In this role, you will work on the design and development of precision mechanical components, assemblies and customer-focused solutions for our industry-leading Imaging & Analysis product portfolio.

This is an exciting opportunity for an experienced engineer who enjoys solving complex technical challenges, collaborating across multidisciplinary teams and delivering innovative products from concept through to manufacture.  The ideal candidate will be bright, with an inquisitive nature and curious.  

Key Responsibilities

• Lead the design and development of mechanical systems and components using 3D CAD software.
• Produce and maintain technical documentation, including requirements specifications, detailed drawings, assembly drawings, layouts and Bills of Materials.
• Drive prototype development, testing, validation and design reviews.
• Deliver robust, scalable and innovative engineering solutions that meet customer and business requirements.
• Collaborate with Application Specialists and customers to develop bespoke solutions and product enhancements.
• Perform feasibility studies, tolerance analysis and detailed design investigations.
• Support manufacturing teams with build guidance and technical expertise.
• Provide technical support to Supply Chain, Operations and Customers throughout the product lifecycle.
• Contribute to root cause investigations and continuous improvement activities across the business.
• Mentor and support early career engineers 

What We Are Looking For

Essential Qualifications & Experience

• Degree qualification (BSc/BEng) in Mechanical Engineering or a related discipline, or equivalent professional experience.
• Incorporated Engineer (IEng) accreditation or working towards professional registration.
• Minimum of 3- 5 years’ experience in product development, precision engineering or a similar environment.
• Proven experience in:
  • Precision mechanical design and tight-tolerance mechanisms.
  • Tolerance stack-up analysis.
  • Designing for thermal stability, vibration control and long-term performance.
  • Design for regulatory compliance, including EMC, Machinery Directive, Safety and Low Voltage Directive requirements.
  • Design for Excellence (DfX) methodologies.
  • Prototype build, test and evaluation.
  • Technical documentation and revision control processes.
  • Cost estimation and budget development.

Desirable

• Experience designing scientific, optical, imaging or high-technology products.
• Knowledge of manufacturing processes and supply chain considerations.
• Experience working in multidisciplinary engineering teams.

Location & Eligibility

This permanent position is based at our headquarters in Belfast working full time onsite.  

Please note that Oxford Instruments Andor is unable to provide visa sponsorship for these roles. Applicants must have the right to live and work in the UK at the time of application.

Closing Date

Closing date for receipt of completed applications is midnight on Sunday 26th July 2026.  

Why Join Oxford Instruments Andor?

We recognise that our people are fundamental to our success and offer a competitive reward package designed to support your wellbeing, career development and work-life balance.

Health & Wellbeing

• Private Medical Insurance (BUPA) for employees and dependants
• Employee Assistance Programme
• Mental Health First Aiders
• Income Protection
• Life Assurance and Personal Accident Insurance
• Occupational Health Service
• Company sick pay
• Two paid volunteering days per year

Financial & Lifestyle Benefits

• 6% employer pension contribution
• Share Incentive Plan
• Leave Purchase Scheme
• Cycle to Work Scheme
• Car Salary Exchange Scheme
• Technology Purchase Scheme
• Employee Discounts
• Free On-site Parking

Career Development

• Professional qualification support
• Accredited training programmes
• Structured learning and development opportunities
• Long service awards

Work-Life Balance

• 187.5 hours annual leave plus 9 customary holidays
• Early finish on Fridays
• Enhanced maternity and paternity pay
• Bereavement leave

Our Commitment to Inclusion

Oxford Instruments Andor is an equal opportunities employer. We welcome applications from all backgrounds and are committed to fostering an inclusive environment where everyone can thrive. We particularly encourage applications from groups currently underrepresented within our workforce, including women, individuals from Black, Asian and Minority Ethnic communities and people with disabilities.

Together, we are creating a workplace where innovation thrives through diversity of thought, experience and perspective.

We are part of the Imaging & Analysis Division of Oxford Instruments Group, enabling scientists and engineers to image, analyse and manipulate materials at the atomic and molecular level.

Oxford Instruments Andor is committed to equality of opportunity and welcomes applications from all. We particularly encourage applications from women, individuals from Black, Asian and Minority Ethnic (BAME) communities, and people with disabilities, as these groups are currently under‑represented within our workforce.

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Note to recruitment agencies:

Oxford Instruments Andor operates a Preferred Supplier List and does not accept unsolicited agency CVs. We are not responsible for fees associated with unsolicited submissions.