Senior Mechanical Design Engineer

Optos; Dunfermline; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Competitive compensation

Benefits package

Job summary

Optos is seeking a Senior Mechanical Design Engineer to join its Optomechanical team in Dunfermline. You will design and develop advanced optomechanical systems for retinal imaging, leading concept development, detailed design, prototyping and validation with cross-functional teams.

You will apply CAD, GD&T and tolerance analysis, manage small projects, conduct FMEA, and support manufacturing transitions while mentoring junior engineers and contributing to design controls and regulatory

Qualifications

• Degree-level education in mechanical or optomechanical engineering.
• Extensive experience in mechanical design of complex multi-component systems.
• Experience designing and integrating motors and precision motion systems.
• Advanced CAD, GD&T, tolerance analysis and PLM documentation control.
• Experience interpreting simulation results and applying DFM principles across manufacturing methods.
• Strong background in thermal management using simulation tools.
• Leadership and mentoring of junior engineers.
• Ability to manage small projects and deliver high-quality outputs on tight deadlines.
• Root-cause analysis, verification testing and design-control compliance.
• Cross-functional collaboration with suppliers and other teams.

Responsibilities

• Lead concept development and system-level mechanical design.
• Develop innovative designs to solve complex challenges.
• Produce, review, and approve drawings, BOMs, and PLM documentation.
• Manage small projects with on-time delivery.
• Drive continuous improvement across product designs and engineering practices.
• Support prototype build, testing, and transition to product/clinical environments.
• Analyze and report experimental results to guide design decisions.
• Apply CAD, GD&T and tolerance analysis for robust designs.
• Lead design reviews, FMEA, verification testing, and regulatory compliance.
• Collaborate with suppliers and mentor junior engineers.

Skills

Mechanical design

Optomechanical engineering

CAD / GD&T

Project leadership

Thermal management

Education

Degree in mechanical engineering

Degree in optomechanical engineering

Tools

CAD software

PLM systems

Simulation tools

FMEA

Job description

ROLE SUMMARY

We are seeking a talented Senior Mechanical Design Engineer to join our Optomechanical team within the Research and Development department, based in Dunfermline. In this role, you will play a key part in designing and developing advanced optomechanical systems that underpin both our next‑generation retinal imaging products and improvements to our existing portfolio. You will contribute to concept development, detailed design, prototyping, and validation, working closely with cross‑functional teams to bring innovative, high‑performance solutions from idea to implementation.

ESSENTIAL DUTIES AND RESPONSIBILITIES

• Lead concept development, system‑level design, and delivery of mechanical solutions.
• Develop innovative designs to solve complex engineering challenges.
• Produce, review, and approve drawings, BOMs, and documentation in line with PLM processes.
• Manage small projects, ensuring effective planning and on‑time delivery.
• Drive continuous improvement across product designs and engineering practices.
• Support prototype build, testing, and transition into product and clinical environments.
• Analyse and report experimental and verification results to guide design decisions.
• Apply advanced CAD techniques, GD&T, and tolerance analysis to ensure robust designs.
• Lead design reviews, FMEA, verification testing, and compliance activities.
• Interpret and validate simulation results and support design optimisation.
• Conduct root‑cause analysis and implement corrective actions for complex issues.
• Select materials and apply DFM principles across multiple manufacturing methods.
• Ensure adherence to design control, regulatory requirements, and quality standards.
• Contribute to patents, disclosures, and technical publications.
• Collaborate with suppliers and support supply‑chain decisions.
• Mentor junior engineers and promote best‑practice design and analysis techniques.

MINIMUM QUALIFICATIONS

• Degree‑level education in mechanical engineering, optomechanical engineering, or equivalent professional experience.
• Extensive experience in mechanical design, including delivery of complex, multi‑component systems.
• Proven experience in the design and integration of motors and precision motion systems within complex mechanical assemblies
• Advanced proficiency in CAD, GD&T, tolerance analysis, and PLM‑based documentation control.
• Experience interpreting simulation results and applying DFM principles across multiple manufacturing methods.
• Strong experience in resolving complex thermal management challenges, including the use of simulation tools to evaluate and optimise system performance.
• Strong leadership and mentoring skills, with the ability to guide junior engineers and influence technical direction.
• Proven ability to manage small projects, prioritise effectively, and deliver high‑quality outputs to tight deadlines.
• Demonstrated capability in root‑cause analysis, verification testing, and compliance with design control requirements.
• Strong communication and collaboration skills, with experience working across cross‑functional teams and with suppliers.

BENEFITS

At Optos, we offer a highly competitive compensation and benefits package.