Junior Physicist

Benefits:

• 401(k)
• 401(k) matching
• Company parties
• Competitive salary
• Dental insurance
• Paid time off
• Vision insurance

About Us - FLI

FieldLine Industries is a Colorado-based quantum sensing company developing and manufacturing high-sensitivity quantum magnetometers and advanced multi-sensor systems. Our technology is being applied in a wide variety of application areas including navigation in GNSS-denied environments, unexploded ordnance detection, maritime sensing, and space systems.


Our technology sits at the intersection of quantum physics, precision engineering, and real-world deployment—transforming applications in navigation, space and geographical mapping, geophysics, defense applications, and fundamental research. We’re a small, highly technical team that values solving problems together, with curiosity, rigor, reliability and humor. We are taking on several exciting projects this year, and are seeking a Junior Physicist to join the team.

The Role

Work with the team in the development, characterization, and operation of quantum
magnetometers, from laboratory experiments through integration and deployment in real-world
Platforms.

Responsibilities

• Test and characterize quantum magnetometers, benchmarking their performance against component specifications and identifying sources of noise and performance limitations.
• Support sensor development by designing and implementing tabletop experimental setups, collecting and analyzing data.
• Work with the team to automate measurement procedures and control laboratory instrumentation.
• Support sensor integration into platforms and their deployment in the field.
• Document experimental procedures and results and present findings at internal and external meetings.

Qualifications

• BS or MS in physics, applied physics, electrical engineering, or a related field.
• Hands-on laboratory experience with optics and lasers.
• Experience with Python for data analysis and automation.
• Working knowledge of electronics and electrical measurements, including oscilloscopes, lock-in amplifiers, and basic noise concepts.
• Willingness to perform field work, including travel and working in outdoor conditions.

Nice to Have

• Experience with optical, atomic, or quantum sensors.
• Experience with low-noise measurements and instrumentation.
• Basic mechanical design skills, including CAD and/or 3D printing for payload mounts.
• Experience with embedded systems or instrument control, such as Arduino, Raspberry Pi, or DAQ hardware.

Why join FieldLine

• Work on cutting-edge quantum technology moving from lab to real-world impact
• High ownership and visibility—your designs will define the product
• Close collaboration with world-class physicists, engineers and research institutions
• Competitive benefits package
• A culture that values deep thinking, fast iteration, and building things that matter
• Quarterly teambuilding events
  
  

Finally, we believe in maintaining a healthy work-life balance and do our best to support our team in enjoying life beyond the workday. Extended, 80-hour workweeks are not part of the expectation here.


Employment Type: Full-time, Onsite
Location: 5540 Central Ave STE 220
Boulder, CO 80301
Job Level: 1+ yrs experience