Join a dynamic telecommunications project as a Freelance Software Engineer, working on a fixed-term, on-site contract in Gatineau, Quebec, through Q1 2027. You will play a key role in migrating virtual machines from CentOS 7 to Red Hat Enterprise Linux 9 and upgrading legacy 32-bit C++ subsystems to 64-bit architecture. This position is ideal for an experienced C++ developer with a strong background in Linux environments, system testing, and DevOps tooling, who thrives in high-availability, real-time system settings.

Deliverables
Migrate virtual machines from CentOS 7 to Red Hat Enterprise Linux 9
Upgrade 32-bit C++ subsystems to 64-bit architecture
Support system testing, release management, and security remediation
Update and maintain CI/CD and DevOps tooling (TeamCity, Jenkins, GitHub, Perforce)
Modernize Java-based web configurators
Conduct security testing and implement remediation measures
Collaborate with cross-functional teams to ensure seamless migration and system stability

Requirements
Minimum 5 years of qualified C++/C development experience




Advanced proficiency in Linux environments and bash scripting
Strong understanding of networking, virtualization, and security best practices
Experience with high-availability, real-time systems is highly desirable
Familiarity with Python, Java, C#, TeamCity, Perforce, Jenkins, and GitHub is a plus
Background in telephony infrastructure or telecommunications projects is advantageous
Legally entitled to work in Canada and able to work on-site in Gatineau, Quebec
Excellent problem-solving skills and attention to detail
Robust communication and teamwork abilities

About Twine Twine is a leading freelance marketplace connecting top freelancers, consultants, and contractors with companies needing creative and tech expertise. Trusted by Fortune 500 companies and cutting-edge startups alike, Twine enables companies to scale their teams globally. Our Mission Twine's mission is to empower creators and businesses to thrive in an AI-driven, freelance-first world.

📌 Freelance Software Engineer – Telecom Migration Gatineau
🏢 Twine
📍 Gatineau