Senior Timing & Synchronization Architect - Unlimited PTO

Parry Labs, LLC; Dallas (TX); On-site; USD 180,000 - 235,000; Full time

Job summary

Parry Labs is seeking a senior software engineer to lead timing and synchronization software for distributed systems. You will apply PNT expertise to keep clocks aligned when reference signals degrade, reporting to a software engineering manager with technical direction from the Chief Engineer.

The target start is November 2026. You will define interfaces, implement time-source fusion, coordinate with systems engineers, and lead design reviews with the team.

Qualifications

• Bachelor's degree in computer science, computer engineering, electrical engineering, applied mathematics or a related field, or equivalent relevant experience.
• 9+ years of software engineering experience, including 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. An active clearance is not required at hire.

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 timing

Leadership

GNSS timing

RTOS/Linux

Education

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

Tools

Linux

Real-time OS

Job description

Parry Labs is seeking a senior software engineer to lead timing and synchronization software for distributed systems. You will apply PNT expertise to keep clocks aligned when reference signals degrade, reporting to a software engineering manager with technical direction from the Chief Engineer.

The target start is November 2026. You will define interfaces, implement time-source fusion, coordinate with systems engineers, and lead design reviews with the team.