Principal System Integration Engineer

Parallel Wireless is seeking a Principal System Integration Engineer to drive the integration, validation, and performance optimization of our next-generation Open RAN 5G
-station solutions. This hands‑on technical leadership role works closely with development, product, automation, and customer‑facing teams to bring new baseband (L1-L3) capabilities from design through system‑level verification and deployment readiness. The position can be based at our headquarters in Nashua, New Hampshire, approximately 45 miles north of Boston; or another location with the U.S. upon agreement with the hiring manager.

• Lead end‑to‑end system integration and testing of 5G  algorithms, radio equipment, and L1/L2/L3 features; establish priorities, test coverage, and technical acceptance criteria.
• Partner with engineering teams to review designs for cellular features such as rate adaptation, power control, scheduling, and interference mitigation; challenge assumptions and recommend improvements.
• Define and execute system‑level test strategies to evaluate functionality, interoperability, conformance, and performance against product designs and applicable 3
  
  GPP and O‑RAN specifications.
• Develop and improve test methodologies, analysis workflows, and repeatable performance benchmarks; identify opportunities for automation and provide clear technical requirements to automation engineers.
• Investigate and resolve complex integration and performance issues identified in internal labs and customer deployments, driving root‑cause analysis and cross‑functional corrective actions.
• Translate product requirements and customer use cases into actionable integration plans, test scenarios, and system performance validation workflows.
• Produce concise technical reports, performance metrics, and evidence‑based recommendations for engineering, product, and customer teams.
• Provide technical guidance and mentorship to other engineers, facilitate design and defect reviews, and help improve integration quality and execution discipline.

• Ability to obtain and maintain a U.S. government security clearance, which requires U.S. citizenship under federal law, or currently hold an active SECRET or TOP SECRET clearance.
• Bachelor's or master's degree in Electrical Engineering, Telecommunications, Computer Engineering, or a related technical field, or equivalent practical experience.
• 10+ years of relevant experience in LTE and/or 5G radio access network system integration, validation, or performance engineering, including experience leading technically complex integration efforts.
• Strong understanding of 5G /or LTE radio protocols, RAN architecture, and L1/L2 behavior; ability to connect algorithm‑level behavior with end‑to‑end system performance.
• Hands‑on experience with radio‑frequency test equipment, lab‑based validation, troubleshooting, and analysis of system‑level performance data.
• Experience with real‑time software development or debugging and proficiency using Python for testing, analysis, or automation.
• Strong analytical, problem‑solving, communication, and cross‑functional collaboration skills, with demonstrated ability to lead technical investigations and guide others.

• Experience validating Open RAN architectures and interfaces and interpreting O‑RAN Alliance specifications.
• Experience with 3
  
  GPP conformance, radio performance optimization, and customer‑facilitating issue resolution.
• Experience improving CI/test automation workflows or developing reusable system integration test frameworks.