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Viavi Solutions

Provides network performance, optical security solutions

Lead Applications Engineer - PNT

Manual & Functional QAPosted on Nov 13
Full-time

About the Job

Requirements

  • A bachelor's degree in a relevant technical field, or equivalent military or professional technical training or experience.
  • At least 6 years of hands-on experience in test engineering, applications engineering, product support, or field engineering for GNSS, timing technologies, software-defined radio, or radio-frequency products.
  • Working knowledge of GNSS (GPS, Galileo, GLONASS, BeiDou), GNSS receivers, and the effects of interference, jamming, and spoofing on receiver performance.
  • Experience with GNSS simulators or radio-frequency test equipment, including signal generators, spectrum analyzers, and oscilloscopes.
  • Experience writing test procedures and test reports.
  • Scripting experience for test automation.
  • Comfort working directly with customers and internal teams on technical issues, and ability to explain findings clearly in writing.
  • Ability to work independently, manage multiple concurrent tests and cases, and maintain accurate records.
  • Ability to travel up to 20%.

Responsibilities

  • Set up, configure, and maintain the APNT testbed in Germantown, MD, including GNSS simulators, radio-frequency signal generation and distribution, interference and jamming sources, reference timing, and devices under test, with remote access for routine operation.
  • Design test cases for performance and resilience testing, including GNSS-degraded and GNSS-denied scenarios, interference, spoofing, holdover, and recovery.
  • Automate test execution and data collection with scripting, and maintain test scripts and configurations as reusable assets.
  • Analyze results and write accurate, repeatable, clear test reports for Engineering, Product Line Management, and customer-facing teams.
  • Keep testbed equipment calibrated, documented, and under configuration control.
  • Participate in field test events in live threat environments and incorporate results and lessons learned into the testbed and test cases.
  • Test PNT products at new product release and each firmware release, using the products as a customer would as a final quality check before customer delivery.
  • Maintain a customer-use checklist for each product so releases are checked consistently.
  • Reproduce, document, and report defects to Engineering with the configuration, data, and steps needed to resolve them.
  • Confirm that reported defects are fixed in subsequent releases.
  • Validate user manuals, quick start guides, application notes, and other technical documents by following them as a customer would on the actual product.
  • Report errors, gaps, and unclear procedures to document owners and confirm corrections.
  • Contribute technical content, procedures, and test results to documents as requested by the owner.
  • Train the post-sales support team on new products and features so they can support customers from day one.
  • Prepare training material, demonstration setups, and reference configurations for support use.
  • Contribute troubleshooting tips, known behaviors, and workarounds to the support team's knowledge base.
  • Provide level 2 technical support to Customer Service on cases requiring deeper product, GNSS, or radio-frequency expertise.
  • Reproduce customer issues in the lab, isolate root cause, and provide fixes to Customer Service or escalate to Engineering with reproduction steps and supporting data.
  • Report findings and resolutions to Customer Service so they can close cases with customers.
  • Feed recurring issues and customer usage patterns back to Solutions Engineering, Engineering, and Product Line Management.

Desired Qualifications

  • Experience with precision timing products and standards, including IEEE 1588 PTP, SyncE, NTP, and holdover with OCXO, rubidium, or cesium oscillators.
  • Experience with inertial navigation systems and GNSS/INS integration.
  • Experience with Iridium PNT, M-code, SAASM, or other assured PNT technologies.
  • Experience with military or defense test programs, or GPS test ranges.
  • Experience with network configuration (VLAN, routing, SNMP) as used in timing and network management.
  • Lab skills in radio-frequency cabling and connectors, signal distribution, power, and basic PCB-level troubleshooting.
  • Familiarity with configuration management and defect tracking tools.
  • Ability to obtain a US DoD Secret security clearance.
  • Python for test automation.

About the Company

Viavi Solutions

Provides network performance, optical security solutions

VIAVI Solutions provides test, measurement, and assurance products for networks and services, along with optical security solutions. It serves mobile operators, governments, enterprise networks, and infrastructure contractors, offering hardware and software tools to design, deploy, monitor, and verify network performance and security. Unlike many competitors, VIAVI combines breadth across telecom networks with optical security capabilities and serves a global customer base, enabling end-to-end validation and protection of critical infrastructure. The company’s goal is to help customers deploy and operate reliable, high-performance networks and services while ensuring security and compliance.

Company size
5,001-10,000
Company stage
IPO
Headquarters
Chandler, AZ
Founded
1923

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