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Sr Software Engineer, Stack

Parallel Wireless • Mobile Networks • Network Equipment • Bachelor's Degree • C++ • 1 year ago
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Salary
≈ $118k – $217k per year (Estimated)
Location
Hybrid (Nashua, United States)
Seniority
Senior
Visa
H-1B filings in 12 months: 4 · for this role: 2 · green card filings: 2
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Apr 9, 2025. Parallel Wireless scores B on the Alion truth index.

Overview
Company
Impact
Profile match

Parallel Wireless

Parallel Wireless is a telecommunications software and hardware company headquartered in Nashua, New Hampshire, and founded in 2012. The company develops cloud-native Open RAN (Radio Access Network) solutions that support 2G, 3G, 4G, and 5G technologies through software-defined radios and network automation tools. It serves mobile network operators and private industries globally, providing interoperable infrastructure designed to reduce deployment costs and increase operational efficiency.
parallelwireless.com • HQ: Nashua, United States • Mobile Networks • Network Equipment • 501-1000 employees • Est. 2012
Tech stack of Parallel Wireless
Backed by Floodgate

We are seeking an experienced Senior Software Engineer with a strong background in telecommunications, 4G/LTE protocol stack development, and real-time systems programming.

The ideal candidate will have hands-on expertise in LTE control-plane and data-plane layers (RRC, MAC, RLC, PDCP) and proven skills in C/C++ development on Unix/Linux environments. This role is focused on core product development, feature implementation, and field issue resolution-not QA, testing, or integration. You’ll work closely with cross-functional teams to design, code, and deliver high-performance LTE solutions.

Key Responsibilities:

  • Design and develop 4G/LTE protocol stack features (control-plane & data-plane).
  • Work on protocol layers such as RRC, LTE-MAC, RLC, and PDCP.
  • Write, optimize, and debug C/C++ code on Unix/Linux/POSIX real-time operating systems.
  • Analyze and resolve customer-reported and internal QA issues.
  • Handle field issues, debugging, and customer support escalations.
  • Bring up and maintain LTE test setups in a running state.
  • Collaborate with peers to augment LTE/5G knowledge and drive engineering productivity.
  • Contribute to product performance improvements and ensure high-quality deliverables.

Skills & Experience

  • Proven experience in telecom software development (LTE / 4G, preferably with exposure to 5G).
  • Strong expertise in protocol development (RRC, MAC, RLC, PDCP).
  • Excellent design and coding skills in C/C++.
  • Hands-on experience with Unix/Linux real-time operating systems.
  • Strong problem-solving and debugging skills for complex telecom systems.
  • Experience handling customer issues and fixing field problems.
  • Excellent communication skills and ability to work across global teams.

Qualifications

  • Master’s or Bachelor’s degree in Computer Science / Computer Engineering / Telecommunications.
  • Experience in product development roles (not QA / Integration / pure testing).
  • Familiarity with telecom standards, LTE architecture, and 5G evolution.
  • Exposure to telecom product lifecycles and performance optimization.
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