National Radio Astronomy Observatory
Title: Technical Specialist
Location: NRAO Central Development Lab, 1180 Boxwood Estate Rd, CHARLOTTESVILLE, Virginia, United States of America
Requisition Number: 36
Job Family: Technical Specialist
Pay Type: Hourly

POSITION SUMMARY

The National Radio Astronomy Observatory (NRAO) is hiring a full-time technician to join the Low Noise Amplifier (LNA) group at the Central Development Laboratory (CDL) in Charlottesville, VA.
The NRAO is a diverse, exciting, and prestigious research facility that plays a vital role in the study of the universe. The Observatory operates a variety of radio telescopes across the globe, including the iconic Very Large Array (VLA) in New Mexico, the Green Bank Telescope in West Virginia, and the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile. These state-of-the-art telescopes enable astronomers to explore the universe in unprecedented detail.
The technician will assemble and test microwave and millimeter-wave Low Noise Amplifiers (LNAs) for use in radio astronomy receivers. This position requires assembling electronic components under a microscope, often working with electrostatic-sensitive devices with dimensions of a fraction of a millimeter using wire bonding and die attach techniques. Testing of the assembled LNAs will be conducted using advanced microwave test equipment at both room temperature and cryogenic environments.
A key responsibility of this role is to learn how to inspect, repair, and test legacy amplifiers currently in service at telescopes when faults arise, ensuring their continued operation.
Finally, the selectee will collaborate with a research engineer to design mechanical blocks for mounting Monolithic Microwave Integrated Circuits (MMICs) and chip-and-wire (MIC) amplifiers. The technician will also discuss the design, layout, assembly, testing, and procedures with engineers and technical staff to improve processes and ensure optimal amplifier performance.

MINIMUM EDUCATION

• You have an Associate’s Degree or an equivalent combination of education and experience.
• You have a minimum of 3 years of experience in related field.

COMPETENCY SUMMARY

Applicants must be methodical, motivated team players who are comfortable in a diverse research environment. Good writing and communication skills are required to keep records and document the work. All applicants must be comfortable using MS Word and Excel to manage and graph measurement results.

PHYSICAL REQUIREMENTS

The candidate must be able to sit or stand at a bench for sustained periods. Visual acuity and manual dexterity are required, and this position requires lifting and carrying 50 pounds.
To be considered, you must be a United States citizen or permanent resident as this position is not eligible for work authorization sponsorship.

Precision assembly of microwave and millimeter-wave LNAs based on MIC and MMIC technologies:

• Assemble LNAs using precision techniques under a microscope. Handling and bonding microwave components, such as MMICs and chip-and-wire (MIC) amplifiers.
• Follow detailed assembly procedures, including the use of specialized tools, adhesives, and wire bonding techniques to create high-frequency circuits.

Testing microwave and millimeter-wave circuits and systems:

• Perform electrical testing of assembled LNAs using microwave and millimeter-wave test equipment. Measure gain, noise figure, return loss, and other performance parameters using network analyzers, spectrum analyzers, noise figure meters, and power meters.
• Conduct tests at both room temperature and cryogenic environments.

Recording and analyzing test data:

• Maintain detailed records of test results, assembly procedures, and performance characteristics.
• Document measurement conditions, test setups, and any observed anomalies.
• Analyze data to identify trends or discrepancies and collaborate with engineers to interpret results and suggest improvements in designs or manufacturing processes.

Monitor, track, and maintain laboratory inventory:

• Monitor inventory levels of critical lab supplies, including electronic components, adhesives, wire bonding materials, and test equipment accessories.

Inspecting, troubleshooting, and repairing legacy amplifiers as needed:

• Inspect and diagnose issues in legacy amplifiers that are currently in service.
• Assess amplifier performance to diagnose component degradation or failures. This includes troubleshooting circuit-level failures, replacing defective components, and verifying restored functionality through re-testing.

Collaborating with engineers to refine assembly and testing procedures:

• Collaborate with engineers, scientists, and other technical personnel to discuss issues encountered during assembly and testing.
• Provide feedback to engineers regarding possible improvements in component placement, bonding techniques, and testing procedures. Recommendations may also include optimizations in mechanical design, materials selection, or assembly workflow to enhance performance, yield, or manufacturability.