Junior Electronics Engineer

Company Profile

Location: Waterbeach, UK
Department: Engineering
Reports to: Engineering Manager
Type: Full-time, Permanent

Company Profile
Thermoteknix Systems Ltd, founded in 1982 and based in Cambridge, is a world leader in thermal imaging, night vision, and augmented reality systems. Our award‑winning technologies are trusted by defence, security, and industrial customers in over 70 countries. With in‑house R&D, cutting‑edge innovation, and a global reputation for quality, we design and manufacture solutions that perform in the toughest environments.

The Junior Electronics Engineer will support the design, development, testing, and maintenance of electronic hardware used across Thermoteknix products. Working closely with senior electronics engineers and other members of the R&D team, the successful candidate will gain hands‑on experience across the full product development lifecycle, from concept and prototype testing through to production support.

This role would suit a recent graduate, early‑career engineer, or someone with practical electronics experience who is looking to develop their skills within a technically challenging engineering environment.

• Support the design and development of electronic circuits and assemblies for new and existing products.
• Assist with schematic capture, component selection, design calculations, and technical documentation.
• Support PCB design activities under the guidance of senior engineers.
• Build, test, debug, and modify prototype electronic hardware.
• Carry out board‑level testing, fault finding, and verification activities.
• Use electronic test equipment including oscilloscopes, multimeters, logic analysers, and power supplies.
• Assist with the integration of electronics with firmware, software, sensors, displays, power systems, and communication interfaces.
• Support environmental, EMC, and compliance testing where required.
• Help produce and maintain test procedures, design notes, bills of materials, and manufacturing documentation.
• Work with production and test teams to investigate and resolve hardware issues.
• Support component sourcing, alternative part reviews, and obsolescence investigations.
• Participate in design reviews, project meetings, and technical discussions.
• Maintain clear records of test results, design changes, and engineering investigations.

• Degree, HNC/HND, apprenticeship, or equivalent practical experience in Electronic Engineering, Electrical Engineering, or a related discipline.
• Good understanding of basic analogue and digital electronics.
• Practical experience building, testing, or debugging electronic circuits.
• Ability to read schematics and understand electronic circuit operation.
• Experience using common electronic test equipment such as oscilloscopes, multimeters, and bench power supplies.
• Basic understanding of embedded systems, microcontrollers, sensors, or communication interfaces.
• Good problem‑solving skills and a practical approach to engineering tasks.
• Strong attention to detail and willingness to learn.
• Good written and verbal communication skills.
• Ability to work effectively as part of a multidisciplinary engineering team.

• Experience with schematic capture or PCB design tools such as Altium Designer, KiCad, OrCAD, or similar.
• Experience with prototype assembly, soldering, rework, or wiring.
• Familiarity with communication interfaces such as SPI, I²C, UART, USB, Ethernet, CAN, MIPI, or LVDS.
• Basic understanding of power supply design, battery‑powered products, or low‑power electronics.
• Exposure to embedded C, Python, firmware development, or FPGA‑based systems.
• Interest in imaging systems, thermal cameras, night vision, displays, augmented reality, or electro‑optical products.
• Understanding of EMC, environmental testing, or design for manufacture.
• Previous experience in a commercial, industrial, defence, aerospace, scientific, or high‑technology engineering environment.

• Practical, hands‑on, and comfortable working with real hardware.
• Strong problem‑solving mindset with good attention to detail.
• Able to work independently while contributing effectively to a wider…