Senior Software Engineer to design and deliver embedded firmware using C++ on Linux

S.I. Systems Ltd.; Calgary; Hybrid; CAD 90,000 - 130,000; Full time

Job summary

S.I. Systems Ltd. seeks a Senior Software Engineer to design and deliver embedded firmware using C++ on Linux for a defense-grade program in Calgary.

The role involves developing on Linux, integrating with hardware, and creating Python-based test automation within a SAFe environment. The candidate will mentor junior developers, collaborate with cross-functional teams, and ensure robust software and firmware solutions across a long-lived codebase.

Qualifications

• C++ on Linux for applications on custom target hardware.
• Embedded firmware development under Linux.
• Automated test frameworks using Python.
• Canadian citizenship and Reliability Status (Secret in process) with a positive Controlled Goods Assessment.
• Bachelor's Degree in Computer Engineering, Computer Science, or equivalent.

Responsibilities

• Design software and firmware solutions.
• Implement new functionality in deployed systems.
• Develop test automation using Python and associated frameworks.
• Work with Hardware, Firmware, System, and Test Engineers to perform verification activities.
• Work with System Engineering and UX teams to determine behavior and plan new functionality.
• Analyze legacy code to determine behavior.
• Correct defects in existing systems.

Skills

C++ on Linux

Embedded firmware

Python

Education

Bachelor's Degree in Computer Engineering, Computer Science, or equivalent

Job description

Senior Software Engineer to design and deliver embedded firmware using C++ on Linux

Our aerospace & defense client is seeking a Senior Software Engineer (5-10+ years) to design and deliver embedded firmware using C++ on Linux

Join a defense communications program supporting domestic and international land forces. This contract role designs, implements, integrates, and tests embedded firmware and software on Linux target hardware using C++ with Python-based automation across a large, long-lived codebase. Work spans networking features, including socket programming with TCP/IP and UDP, within a multi-team SAFe environment. The team is seeking a senior engineer who can contribute to design and help mentor junior developers.

Must Haves

• C++ on Linux for applications on custom target hardware
• Embedded firmware development under Linux
• Automated test frameworks using Python
• Canadian citizenship and Reliability Status (Secret in process) with a positive Controlled Goods Assessment
• Bachelor's Degree in Computer Engineering, Computer Science, or equivalent

Nice to Have

• Socket programming with TCP/IP, UDP, and unicast
• Prior leadership or mentoring
• Experience with AI agents and development tools

Responsibilities

• Design software and firmware solutions
• Implement new functionality in deployed systems
• Develop test automation using Python and associated frameworks
• Work with Hardware, Firmware, System, and Test Engineers to perform verification activities
• Work with System Engineering and UX teams to determine behavior and plan new functionality

Our aerospace & defense client is seeking a Senior Software Engineer (5-10+ years) to design and deliver embedded firmware using C++ on Linux

Join a defense communications program supporting domestic and international land forces. This contract role designs, implements, integrates, and tests embedded firmware and software on Linux target hardware using C++ with Python-based automation across a large, long-lived codebase. Work spans networking features, including socket programming with TCP/IP and UDP, within a multi-team SAFe environment. The team is seeking a senior engineer who can contribute to design and help mentor junior developers.

Contract, Calgary, Hybrid, Working Hours: 8am - 4pm MST

Must Haves

• C++ on Linux for applications on custom target hardware
• Embedded firmware development under Linux
• Automated test frameworks using Python
• Canadian citizenship and Reliability Status (Secret in process) with a positive Controlled Goods Assessment
• Bachelor's Degree in Computer Engineering, Computer Science, or equivalent

Nice to Have

• Socket programming with TCP/IP, UDP, and unicast
• SAFe experience
• Prior leadership or mentoring
• Experience with AI agents and development tools

Responsibilities

• Design software and firmware solutions
• Implement new functionality in deployed systems
• Analyze legacy code to determine behavior
• Correct defects in existing systems
• Develop test automation using Python and associated frameworks
• Work with Hardware, Firmware, System, and Test Engineers to perform verification activities
• Work with System Engineering and UX teams to determine behavior and plan new functionality

Disclaimer:

AI may be used in evaluating candidates.

This posting is for an existing vacancy.