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Salary
≈ $13k – $25k per year (Estimated)
Location
In office (Koropi)

Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Oct 11, 2026.

Overview
Company
Impact
Profile match
Theon International is a Greek defense technology company that develops electro-optical systems for defense and security applications. Its engineering teams hire software, embedded, FPGA, PCB and mechanical engineers as well as technical pre-sales engineers. The company is headquartered in Koropi, Athens, Greece.

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

Theon Sensors is seeking motivated and skilled graduates in Electronics, Physics or Materials Science to join our team as Instrument Assemblers. The successful candidates will be responsible for the assembly, testing, and quality control of sophisticated optical instruments. This is an excellent opportunity to apply your academic knowledge in a practical, hands-on environment and contribute to the development of cutting-edge technology.

Exciting Relocation Opportunities:

At Theon Sensors, we believe in giving our team members the chance to grow both professionally and personally. After completing the initial training at our facilities, you’ll have the exciting opportunity to enhance your career through short-term relocation (up to 6 months), longer-term relocation (up to 24 months), or even a permanent relocation to our international locations in Denmark, Germany, and Western Europe. This is a chance for those looking to explore new cultures, expand their horizons and advance their careers while enjoying the experience of living and working in dynamic, global environments. Competitive compensation will be provided, tailored to the specific relocation duration and location.

Key Responsibilities:

  • Assemble optical instruments according to engineering specifications and schematics.
  • Conduct precision alignment and calibration of optical components.
  • Perform quality control tests to ensure instruments meet required standards.
  • Collaborate with engineers and other team members to troubleshoot and resolve assembly issues.
  • Document assembly processes and maintain accurate records.
  • Ensure compliance with safety protocols and industry regulations.

Qualifications:

  • Bachelor's degree in Electronics, Physics, Materials Science, or a related field.
  • Strong understanding of optical principles and materials properties.
  • Hands-on experience with optical assembly and alignment (academic or internship experience is acceptable).
  • Excellent problem-solving skills and attention to detail.
  • Ability to work independently as well as part of a team.
  • Good communication skills and the ability to follow detailed instructions.

Preferred Qualifications:

  • Experience with optical instruments in a laboratory or industrial setting.
  • Familiarity with quality control processes and standards.
  • Proficiency in using optical alignment and calibration tools.
  • Fluent in English (both written and spoken). Knowledge of French will be considered a plus.
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