Senior Opto-Mechanical Engineer
Plessey Semiconductors · Oxford, Oxfordshire
Senior Opto-Mechanical Engineer at Plessey Semiconductors, based in Oxford, Oxfordshire. This is a permanent role.
- Salary
- Competitive
- Location
- Oxford, Oxfordshire
- Contract
- Permanent
- Posted
- 3 days ago
- Closes
- 19 Nov 2026
- Sector
- Mechanical Engineer
Reference 538767
About the role
Key Responsibilities
- Design and develop precision optomechanical components, fixtures, and assemblies for photonic and optical systems.
- Create detailed 3D CAD models, mechanical drawings, and documentation using industry-standard CAD tools.
- Define and manage critical mechanical tolerances, alignment features, and assembly interfaces to ensure robust optical performance.
- Perform tolerance stack-up analyses and establish manufacturing requirements for high-precision assemblies.
- Collaborate with optical and photonics engineers to develop packaging and integration solutions for lasers, detectors, optical fibers, micro-optics, and photonic integrated circuits.
- Evaluate and select manufacturing processes and materials capable of achieving demanding dimensional and stability requirements.
- Perform mechanical, thermal, vibration, and structural analyses to validate designs.
- Support prototype builds, verification testing, reliability testing, and product qualification activities.
- Drive design-for-manufacturing (DFM) and design-for-assembly (DFA) improvements for both low-volume and high-volume production.
- Work with suppliers and manufacturing partners to ensure components meet critical dimensional, cosmetic, and performance specifications.
- Investigate and resolve design, manufacturing, and reliability issues through structured root-cause analysis.
Skills, Knowledge and Expertise
- Bachelor's, Master's, or Ph.D. in Mechanical Engineering, Optomechanical Engineering, Physics, or a related discipline.
- Experience designing precision mechanical or optomechanical systems with tight dimensional and geometric tolerances.
- Strong understanding of GD&T, tolerance analysis, precision alignment features, and manufacturing variation.
- Demonstrated experience working with components and assemblies requiring micron-level accuracy and repeatability.
- Proficiency with CAD software such as SolidWorks, Creo, NX, or equivalent.
- Experience with precision manufacturing processes including CNC machining, micro-machining, injection molding, stamping, or related technologies.
- Familiarity with finite element analysis (FEA) and mechanical validation methods.
- Strong analytical and problem-solving skills.
- Proactive and self-motivated, with a strong sense of ownership.
- Delivery-focused and capable of managing multiple priorities.
- Collaborative team player with strong communication skills.
- Adaptable and eager to learn in a fast-paced technology environment
- A proven track record of delivering optical products into production would be an advantage.
- Experience in optical interconnects, optical transceivers, silicon photonics, photonic integrated circuits (PICs), optical packaging, or related photonics technologies.
- Experience with active or passive optical alignment systems.
- Familiarity with automated assembly and precision manufacturing environments.
- Experience working with optical fibers, micro-optics, lasers, or detector integration.
Benefits
- Pension scheme
- Private medical & dental insurance
- 28 days’ holiday + bank holidays
- Relocation support
- Visa support available
Reference: 538767 · Posted 3 days ago · Closes 19 Nov 2026 · Listed via Plessey Semiconductors
Apply for this job
This role is listed via Plessey Semiconductors. Applications are handled on the employer's site.
Apply on employer siteOpens the employer's website in a new tab.
Safe applying: a genuine employer will never ask you to pay for a DBS check, training or equipment, or move you onto WhatsApp before you are hired. If this listing does, report it and do not pay anything.