Your mission
- Develop and optimize optical thin-film and facet coating processes for optoelectronic semiconductor devices
- Take technical ownership of facet coating equipment, including maintenance coordination, measurement processes and failure analysis
- Design and simulate thin-film stacks based on anti-reflection (AR) requirements and the optical properties of coating materials
- Measure and characterize thin films using ellipsometry, SEM, profilometry and related metrology methods
- Develop specialized passivation and thin-film coating concepts for different laser diode facets
- Apply structured experimentation and statistical process control (SPC) to improve process capability, quality and yield
- Improve coating and stacking processes, including related hardware and software
- Transfer new coating processes and technologies from development into stable production
- Analyze technical failures, troubleshoot complex process and equipment issues and implement sustainable solutions
- Collaborate closely with Production, R&D, Quality, IT and other engineering teams
- Prepare technical and process documentation, including development plans, engineering reports, SOPs and work instructions
- Train and support production teams on assigned equipment and processes
- Support engineering changes, deviation processes, quality assurance and continuous improvement initiatives
- Ensure compliance with applicable EHS requirements and company standards
Your profile
- Bachelor's or Master's degree in Optics, Physics, Materials Science, Optical Engineering or a related
- technical field
- Professional hands-on experience in optical thin-film coating and related process engineering
- Strong knowledge of optical coating design, thin-film stacks and anti-reflection coating concepts
- Experience with coating equipment, vacuum systems and thin-film measurement or characterization
- tools
- Hands-on experience with ellipsometry and other relevant metrology methods
- Strong analytical, troubleshooting and problem-solving skills
- Ability to independently manage technical projects while collaborating effectively with multidisciplinary
- teams
- Willingness to work closely with production teams and provide hands-on on-site support
- Fluent English language skills, both written and spokenNice to have
- Experience with thin-film design and simulation software, preferably Macleod
- Experience with facet coating or passivation processes for laser diodes or other optoelectronic devices
- Knowledge of SPC, Design of Experiments (DoE) and statistical data analysis
- Experience with SEM, profilometry and advanced thin-film characterization
- Experience improving or automating coating and stacking equipment, including related hardware and software
- Experience transferring engineering processes into volume production
- German language skills are an advantage
Why us?
Shape the future of optical coating for Photonic Semiconductor devices
Location: Dortmund, Germany | Full-time (40 hours/week) | Permanent
Join Innolume
At Innolume, we develop innovative optoelectronic semiconductor technologies for next -generation communication, sensing and photonic applications. Our expertise ranges from advanced quantum-dot and quantum-well technologies to customized photonic devices tailored to our customers' requirements. To strengthen our Engineering team, we are looking for an experienced Optical Coating Engineer (m/f/d) who is passionate about optical thin-film technologies and turning advanced coating concepts into robust, production-ready processes. In this role, you will take technical ownership of facet coating equipment and processes - from thin-film design and process development to characterization, troubleshooting and transfer into stable production. You will work hands-on with coating and measurement systems and collaborate closely with Production, R&D, Quality and other engineering teams. If you enjoy combining optics, materials science and process engineering and want to see your solutions make a tangible impact in photonic semiconductor manufacturing, we would love to meet you.
- A permanent position in an innovative and international high-tech environment
- The opportunity to work at the forefront of photonics and semiconductor technology
- Hands-on responsibility for coating technologies and processes from development through industrialization
- Challenging projects with a high degree of technical ownership and room to contribute your own ideas
- Close collaboration with experienced colleagues across R&D, Engineering, Quality and Production
- Individual internal and external training and professional development opportunities
- Flexible working hours in a collaborative working environment
- 30 days of annual leave
- Attractive additional benefits, including company parking, company events, free beverages and fruit
- Gift vouchers for special occasions such as birthdays
- Additional benefits after successful completion of the probationary period, including commuting allowance, mobility support, meal subsidies and other attractive perks
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