Senior mechanical engineer Work, Jobs in Cowley, Oxf (with Salaries)

Senior Opto-Mechanical Engineer
Plessey —Oxford
- Full-time
- Doctoral degree
- Engineering
- Master's degree
Quick apply
Senior Mechanical Design Engineer
HydraB —Bicester
- Full-time
- Hybrid work
- Engineering
- Master's degree
- Analysis skills
- Employee assistance programme
Quick apply
Mechanics Manager
Infinitesima —Abingdon
- £65,000 - £83,000 a year
- Hybrid work
- Engineering
- English
- Continuous improvement
- Annual leave
Quick apply
Mechanical Engineer (PPE/Wearable Hardware Focussed)
XYZ Reality —Reading
- Full-time
- Hybrid work
- Engineering
- In-person
- Annual leave
- Referral programme
Senior Aerodynamic Engineer - Brake Thermal
Cadillac Formula 1® Team —Silverstone
- Mentoring
- Annual leave
Quick apply
Senior Project Engineer M-F
Safran —Banbury
- Full-time
- Engineering
- Communication skills
Senior Mechanical Design Engineer
Alloyed —Kidlington
- Engineering
- No degree
- Communication skills
Senior Mechanical Design Engineer - Martin Audio
The Focusrite Group —High Wycombe
- Full-time
- Engineering
- Mentoring
Quick apply
Senior Mechanical Engineer - Water Sector
Stantec —Reading
- Continuous improvement
- Mentoring
- Training & development
- Annual leave
2d
Graduate Mechanical Engineer
Applus 3C Test Ltd —Silverstone
- From £26,000 a year
- Overtime
- Engineering
- English
- Bachelor's degree
- Free parking
- Health & wellbeing programme
Quick apply
Senior Composite Design Engineer
Prodrive —Banbury
- Engineering
- Continuous improvement
- Employee discount
9d
Senior Systems Design Engineer
Prodrive —Banbury
- Full-time
- Engineering
- Continuous improvement
- Manufacturing
- Employee discount
Quick apply
9d
Mechanical Project Engineer
Thames Water Utilites —Reading
- £41,000 - £55,000 a year
- Full-time
- Engineering
- No degree
- Travel
- Annual leave
5d
Senior CAD Process and Development Engineer
Aston Martin F1 —Silverstone
- Full-time
- Engineering
- Continuous improvement
- Travel
Quick apply
12d
Senior Surface Designer
Prodrive —Banbury
- Engineering
- Continuous improvement
- Employee discount
9d
Senior Surface Designer
Prodrive —Banbury
- Full-time
- Engineering
- Continuous improvement
- Employee discount
Quick apply
9d
Senior Structural Analyst
Prodrive —Banbury
- Full-time
- CAD
- Engineering
- Continuous improvement
- Employee discount
Quick apply
9d
Senior Structural Analyst
Prodrive —Banbury
- Engineering
- Continuous improvement
- Manufacturing
- Employee discount
9d

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Senior Opto-Mechanical Engineer

Plessey -
Oxford

Quick apply

Job details

Full-time

Benefits

Private dental insurance
Company pension
Private medical insurance

Qualifications

Finite element modelling
Doctoral degree
Stakeholder collaboration
Mechanical design
Engineering
Mechanical Engineering
GD&T
Master's degree
Analysis skills
Bachelor's degree
Packaging
FEA
Multidisciplinary collaboration
3D models
Manufacturing
Root cause analysis
Communication skills
CNC
Creo

Full job description

Description

We are seeking a highly motivated Opto-Mechanical Engineer to join our Photonics Systems engineering team. In this role, you will be responsible for the design, development, analysis, and qualification of precision optomechanical systems used in optical interconnects, photonic devices, and next-generation optical technologies.

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.

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

About Plessey Semiconductors

About Plessey

We’re building the hardware foundation for next-era computing.

Plessey is a world-leading technology company driving the next generation of photonic devices and systems. With over 70 years of innovation, we combine research, materials science, process engineering, and manufacturing under one roof. We’re recognised as a global authority in microLED displays, optical computing, and optical interconnects.

Join us to work on breakthrough technologies shaping the future of light-based technology and computing.

Lead

We don’t follow industry trends; we create them, pushing boundaries and setting standards others aspire to. Every team member has the power to make decisions, drive change, and deliver excellence. We support each other, challenge one another for the best solutions, and lead by example. Together, we build industries and technologies that shape the future and scale toward our vision of the next era of computing.

Grow

We expand our capabilities every day — deepening our expertise, improving how we work, and pushing the boundaries of what’s possible. Curiosity fuels us: we question assumptions, explore new ideas, and innovate with light-based technologies. By investing in and empowering our people, we strengthen Plessey’s impact and help shape the future of optical technology.

Trust
We operate like a family—honest, reliable, and supportive. We have each other’s backs, own our actions, and uphold the highest standards of integrity and safety. We trust each other to deliver, our customers to challenge us, and our expertise to guide the way. Together, trust enables the collaboration essential for breakthrough innovation and lasting impact.

Quick apply

Refine Your Search

senior mechanical engineer jobs in cowley, oxf

Senior Opto-Mechanical Engineer

Senior Mechanical Design Engineer

Mechanics Manager

Mechanical Engineer (PPE/Wearable Hardware Focussed)

Senior Aerodynamic Engineer - Brake Thermal

Senior Project Engineer M-F

Senior Mechanical Design Engineer

Senior Mechanical Design Engineer - Martin Audio

Senior Mechanical Engineer - Water Sector

Graduate Mechanical Engineer

Senior Composite Design Engineer

Senior Systems Design Engineer

Mechanical Project Engineer

Senior CAD Process and Development Engineer

Senior Surface Designer

Senior Surface Designer

Senior Structural Analyst

Senior Structural Analyst

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Benefits

About Plessey Semiconductors

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