Software Developer – LTE/5G NR Protocol Stack Development

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Hybrid (Montrel, QC, CA) Until 10/7/2026 8+ years exp First posted August 8, 2026 Last posted August 8, 2026
Job description

Founded in 1998, Octasic is a privately held company headquartered in Montreal, Canada, with Research and Development facilities in Canada and India and a global sales support network. Octasic is a leading provider of SoCs (System on Chip), software and hardware integrated platforms for the global wireless and multimedia gateway markets. Our hardware and software platforms are the foundation for next-generation wireless systems for Defense, Law Enforcement and National Security Agencies.


We choose Octasic for:

  • A workplace at the cutting edge of technology to be in contact with wireless technology experts in a growing company;
  • Competitive compensation (salaries, benefits, gym membership discount, stock options purchase program, public transit reimbursement, shower on the premises and beverages and snacks free every day);
  • Work-life balance;
  • Friendly and collaborative work atmosphere and many social activities all year long;
  • Working for a company involved in its community;
  • Proximity to various public transportation services (Angus Shuttle, 10 min. walk from Prefontaine station).

About the role:

We are looking for a highly motivated professional to join our wireless communications team on mission-critical Search & Rescue (S&R) solutions. This position focuses on the development, maintenance, and evolution of customized LTE/5G NR NodeB (eNodeB/gNodeB) protocol stack software, along with research and prototyping work.

What you'll do:

  • Design, develop, and support LTE/5G NR air interface protocol stack components, including Layer 1 Control, MAC, RLC, PDCP, RRC & NAS;
  • Work with customers, product management, and cross-functional teams to define requirements and deliver strong solutions;
  • Contribute to software design, implementation, testing, integration, and release efforts;
  • Review software architecture, spot opportunities for improvement, and lead performance and reliability enhancements;
  • Carry out root cause analysis and resolve issues raised by customers, field deployments, and verification teams;
  • Build Proof-of-Concepts (PoCs), prototypes, and technology demonstrators for new wireless features and concepts;
  • Assess emerging 3GPP features and wireless technologies through feasibility studies and technical investigations;
  • Prepare and maintain design, interface, and technical documentation;
  • Coach team members and help advance engineering best practices and continuous improvement initiatives.

Qualifications:

  • Bachelor's or Master's degree in Electronics, Telecommunications, Computer Science, or a related field;
  • 8–10 years of experience in LTE and/or 5G NR protocol stack development;
  • Strong expertise in one or more areas of LTE/NR Layer 1 Control, MAC, PDCP, RLC, RRC, NAS layers;
  • Solid understanding of LTE and 5G NR 3GPP specifications and signalling procedures;
  • Strong programming skills in C/C++ on Linux, RTOS, or embedded platforms;
  • Experience with IPC mechanisms, multi-threading, debugging, and performance optimization;
  • Strong design, troubleshooting, and problem-solving skills;
  • Knowledge of Agile development, version control systems, testing methodologies, and software release processes;
  • Ability to get security clearance.


Assets:

  • Knowledge of LTE/NR PHY, UMTS, or GSM Access Stratum protocols;
  • Experience with R&D projects, technology evaluation, and PoC development;
  • Exposure to system integration, performance analysis, and carrier-grade wireless systems;
  • Strong analytical and communication skills;
  • Self-driven, innovative, and passionate about wireless technologies;
  • Ability to work independently and effectively within cross-functional teams.


#makewaves

About this role

Summary

Develop and maintain LTE/5G NR protocol stack software for wireless systems.

Job title

Software Developer – LTE/5G NR Protocol Stack Development

Experience level

8-10 years

Minimum experience

8+ years exp

Industry

software

Location requirements

hybrid in montreal, remote possible

Salary

Not specified

Management role

No

Skills & keywords

Required skills

C++LinuxRTOSmultithreadingperformance optimization3GPP specifications

Preferred skills

PHY protocolsPoC developmentsystem integrationperformance analysis

Specializations

LTE5G NRprotocol stackwireless
Locations

Structured locations inferred from the posting.

Montreal, QC, Canada

Hybrid City

Montreal, QC, Canada

Remote City