Senior Optical Engineer / Lens Designer

THEON GROUP of companies develops and manufactures cutting-edge night vision and thermal Imaging systems for Military and Security applications with a global footprint. THEON GROUP started its operations in 1997 from Greece and today occupies a leading role in the sector thanks to its international presence through subsidiaries and production facilities in Greece, Cyprus, Germany, the Baltics, the United States, the Gulf States, Switzerland, Denmark, Belgium, Singapore and South Korea. THEON GROUP has more than 200,000 systems in service with Armed and Special Forces in 71 countries around the world, 26 of which are NATO countries. THEON INTERNATIONAL PLC, the group's parent company, has been listed in the EURONEXT stock market, allowing THEON GROUP to accelerate its growth and further future business development. www.theon.com

Role Summary

As a Senior Optical Engineer Lens Designer at Theon Group, you will lead the development and optimization of advanced optical systems for defense, security, and industrial applications. Leveraging your expertise in optical design, particularly in lens systems, you will be responsible for the end-to-end design process—from initial concept and requirements definition to prototype development, testing, and final validation. Collaborating closely with cross-functional teams including mechanical, systems, and manufacturing engineers, you will ensure that optical components meet stringent performance, environmental, and cost requirements. This role demands a high level of technical proficiency in optical simulation software (e.g., Code V, Zemax), deep understanding of imaging and non-imaging optics, and a proven ability to innovate in compact, ruggedized optical designs for field deployment.

Key Responsibilities

You will come across a diverse range of tasks such as:

• Design new Test Setups/Stations/Lenses for optical products 
• DRI Calculations with the use of the TRM4 SW and the NV-IPM SW
• Define the Optical Specifications/Requirements in the design of Protective Windows for Electro-Optical Systems
• Conduct prototype characterization and adjustment of new products
• Interface with Production for trouble-shooting and interpreting Optical Measurements
• Plan and conduct Transfer of Technology projects
• Assemble/Test Prototypes, with the help of other Engineers (Systems, Mechanical, Assembly/Integration/Testing)
• Follow new products after their Design Phase until their Industrialization Phase, by designing test setups/stations, conducting measurements, trouble-shooting and finalizing their performance.
• Technical Writing: compose Technical Specifications & User Manuals for test stations.
• Lead and participate in Field Trials
• Participate in Customer Demos
• Participate in Exhibitions
• Travel requirement: up to 3 weeks per year

Required Qualifications & Skills

• M.Sc. Degree in experimental Physics, or Electrical Engineering with knowledge of Optics
• Working experience in optical design software such as Code V or Zemax
• Proficiency in an Optics Laboratory Environment
• Knowledge of Coatings Technologies for Protective Windows and Lenses
• Knowledge of TRM4 SW will be a plus
• Knowledge of NV-IPM SW will be a plus
• Basic knowledge of Matlab and Labview programming
• Excellent command of the English Language (German will be a plus)
• Open-minded and multi-tasking orientation