
Real job — pulled straight from Plessey Semiconductors’s careers page · Verified July 16, 2026 · No reposts.
Job description
Plessey Semiconductors is hiring a Senior Opto-Mechanical Engineer — a full-time, based in Oxford, Oxfordshire role. Apply directly on Plessey Semiconductors's careers page below.
Senior Opto-Mechanical Engineer
Department: Engineering
Employment Type: Full Time
Location: Oxford, Oxfordshire, Oxford
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
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Frequently asked questions
What skills are required for Senior Opto-Mechanical Engineer at Plessey Semiconductors?
The required skills for Senior Opto-Mechanical Engineer at Plessey Semiconductors include: SolidWorks, Creo, CNC.
What is the seniority level for Senior Opto-Mechanical Engineer at Plessey Semiconductors?
Senior Opto-Mechanical Engineer at Plessey Semiconductors is a Senior level position.
How do I apply for Senior Opto-Mechanical Engineer at Plessey Semiconductors?
You can view the full description and apply for Senior Opto-Mechanical Engineer at Plessey Semiconductors on EchoJobs: https://echojobs.io/job/plessey-semiconductors-senior-opto-mechanical-engineer-engineering-wcddf.