Lead Real-Time PNT & Timing Software Engineer

Parry Labs; Huntsville (AL); On-site; USD 120,000 - 180,000; Full time

Job summary

Parry Labs in Huntsville, AL, is seeking a senior software engineer to lead timing software development for resilient timing and synchronization across distributed systems.

You will apply PNT expertise, integrate GNSS receivers, clock discipline, and holdover algorithms, and drive design decisions with systems engineers. Start target is November 2026, with opportunities to mentor teammates and shape critical timing solutions.

Qualifications

• Bachelor's degree in computer science, computer engineering, electrical engineering, applied mathematics or related field, or equivalent experience.
• 9+ years of software engineering experience with technical leadership and delivery of timing or synchronization software.
• Strong PNT or assured PNT expertise including clock stability, drift, uncertainty, clock discipline and holdover.
• Proficiency in a systems programming language such as C or C++, with experience implementing and debugging timing software.
• Experience with estimation or filtering algorithms and PTP, NTP, GNSS timing or hardware timestamping.
• Experience defining software interfaces, reviewing code and validating performance through automated tests and measured data.
• U.S. citizenship and eligibility to obtain and maintain a U.S. government security clearance if required.

Responsibilities

• Define timing software architecture, interfaces, error budgets and acceptance criteria with systems engineers.
• Implement and validate time-source fusion, clock discipline and holdover algorithms with the software team.
• Develop synchronization services with defined behavior for clock drift, conflicting sources and reference loss.
• Integrate GNSS receivers, oscillators and hardware timestamping through testable software interfaces.
• Measure and improve PTP and NTP performance under latency, packet loss and asymmetric network delay.
• Build automated tests for timing accuracy, uncertainty and recovery under degraded conditions.
• Lead design and code reviews. Mentor engineers on timing algorithms, concurrency and numerical correctness.
• Analyze timing measurements, resolve integration defects and document design decisions and verification results.

Skills

C/C++

PNT expertise

Software architecture

Code reviews

Education

Bachelor's degree in CS/CE/EE or related field

Tools

GNSS receivers

Linux / RTOS

Job description

Parry Labs in Huntsville, AL, is seeking a senior software engineer to lead timing software development for resilient timing and synchronization across distributed systems.

You will apply PNT expertise, integrate GNSS receivers, clock discipline, and holdover algorithms, and drive design decisions with systems engineers. Start target is November 2026, with opportunities to mentor teammates and shape critical timing solutions.