Posted:
7/22/2026, 5:57:16 PM
Location(s):
England, United Kingdom ⋅ Towcester, England, United Kingdom
Experience Level(s):
Senior
Field(s):
Software Engineering
Workplace Type:
On-site
Pay:
$186k–$225k/yr
It's fun to work in a company where people truly BELIEVE in what they're doing!
We're committed to bringing passion and customer focus to the business.
If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!
Senior Process Development Engineer (Backend)
Job Description Summary
Join a world leader and innovator in semiconductor and photonic device manufacturing as a Process Engineer. This role offers the opportunity to contribute to new process development, continuous process improvement, new product introduction (NPI), scrap reduction, cycle-time improvement, and operational support within a state-of-the-art semiconductor fabrication facility based at our Caswell site.
Technology Areas
Thin Film Deposition
Develop, optimise, and maintain dielectric thin-film deposition processes for passivation, optical confinement, device protection, and anti-reflective coatings. Support ALD, PECVD, sputtering, and related deposition technologies to achieve target film thickness, uniformity, refractive index, stress, and reliability requirements. Drive process capability improvements and support new product introduction activities.
Metal Deposition
Develop, optimise, and maintain metallization processes for ohmic and Schottky contact formation in semiconductor and photonic devices. Support sputtering, ion beam deposition, thermal evaporation, electron-beam evaporation, and electroplating processes. Improve film quality, adhesion, contact resistance, process repeatability, and manufacturing yield while supporting technology development and production operations.
Backend Wafer Processing
Develop and optimise backend wafer processing operations including wafer mounting, thinning, back grinding, chemical mechanical polishing (CMP), polishing, cleaving, and dicing. Support thin-wafer handling, process qualification, yield improvement, and manufacturing scale-up activities. Drive continuous improvement initiatives to enhance throughput, wafer quality, and device reliability.
Key Responsibilities
Education/Qualifications/Skills/Competencies:
Job Challenges:
Other Requirements:
We are an equal opportunity employer and value diversity at our company.
We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.
We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.
Please contact us to request accommodation.
Website: https://lumentum.com/
Headquarter Location: Milpitas, California, United States
Employee Count: 5001-10000
Year Founded: 2015
IPO Status: Public
Last Funding Type: Post-IPO Debt
Industries: Telecommunications
Visa Sponsorship: Sponsors work visas