Top Linux Jobs in Ottawa

Join an Agile team to design, code, test, and integrate radio platform and Open RAN software for 5G. Develop production-grade code, unit and automated tests, troubleshoot lab integration issues, and review designs and test plans. Collaborate with customer support and apply AI techniques to improve development and testing workflows.

Install, commission, maintain and troubleshoot LTE and 5G RAN and core/data center network systems. Perform RF testing, microwave backhaul and fiber work, hardware swaps, network troubleshooting across OSI Layers 1-3, alarm monitoring, change management, and on-call incident response in field and data center environments.

Manage and scale Enverus' global AWS infrastructure, automate deployments and CI/CD, ensure high uptime, collaborate with developers to enable zero-downtime releases, participate in on-call rotations, and improve operational practices.

Lead detection, incident response, and digital forensics across macOS/Windows/Linux; act as Incident Commander, triage alerts, use SIEM, build investigation scripts and automated runbooks, collaborate with stakeholders on insider threat and security operations improvements.

Lead AppSec efforts across product, platform, and AI features by owning secure SDLC, performing threat modeling and deep code reviews, driving vulnerability management and remediation, building AppSec tooling and automations (including AI-assisted workflows), and enabling engineering teams with secure design guidance and training.

Provide technical support for Self-managed and GitLab.com customers via tickets and calls; troubleshoot Linux systems and GitLab installations; write bug reports, documentation, and fixes; collaborate with Product, Development, Infrastructure, and Customer Success; participate in on-call rotations and hiring processes.

The Site Reliability Engineer at Sectigo ensures the reliability of services by implementing solutions using IaC, automation, and monitoring tools, while collaborating with engineering teams to enhance operations.

The role involves leading a technical solutions team, ensuring high-quality service delivery, troubleshooting issues, and building customer relationships while communicating effectively with stakeholders.

The IT Systems Engineer will provide L1 support for a Cyber Range platform, undergoing training and performing technical support duties such as incident triage and basic troubleshooting.

The Senior Systems and Software Architect will design, develop, and test embedded software systems for LEO satellites, collaborating with cross-functional teams and ensuring high-quality deliverables.

Design, deploy, and operate large-scale distributed systems. Operate Kubernetes clusters and Istio, automate workflows with Go/Python/shell, build observability with Prometheus/Grafana/Loki, troubleshoot networking/storage/performance, support AI/ML infrastructure, and participate in on-call rotations and postmortems to improve reliability.

Develop high-performance cloud and container technologies for Edge computing, using Kubernetes and related projects. Collaborate in automated testing and contribute to open-source StarlingX. Ensure fault tolerance and high availability in system architecture.

Design, develop, test, and optimize embedded C/C++ software for high-performance networking modules on Linux and VxWorks. Implement real-time OS and networking protocol functionality, create automated tests, troubleshoot performance and reliability issues, and collaborate with factory teams, peer engineers, and vendors for delivery and calibration.

Join Entrust's PKI and Cryptography R&D team to design, implement, and test security‑critical backend components. Work on certificate and key management, secure communications, cryptographic algorithms and protocols, and post‑quantum cryptography prototyping using C/C++/Java in a hybrid Ottawa environment.

Design and implement secure system architectures and controls for Air & Naval systems. Conduct threat modeling, vulnerability assessments and technical security testing of OS, containerized environments and applications. Ensure compliance with NIST/ITSG/DISA/FIPS frameworks, produce SA&A artifacts (SSP, risk assessments, test reports), develop Security Test Procedures, support audits, and mentor junior staff.

Design and implement cybersecurity strategies and system security architectures for Air & Naval systems. Conduct threat modeling, vulnerability assessments and technical security testing of OS, containers and applications. Develop Security Test Procedures, author SA&A artifacts (SSPs, risk assessments, test reports), support audits, and mentor junior staff. Ensure compliance with NIST RMF, ITSG-33, DISA STIGs, FIPS and maintain SBOMs with CVE mapping.

Lead Flight Dynamics for the Lightspeed LEO constellation, owning orbital operations, SSA, maneuver and station-keeping strategy, CONOPS across mission phases, team leadership, FD system development, cross-team coordination, and go/no-go operational decisions.

Lead mission planning and execution for LEO orbit raising, station-keeping and disposal. Perform orbit determination, maneuver design, conjunction assessment and collision avoidance. Automate and refine operational workflows, support FDS/SSAS development and verification, mentor junior analysts, and provide operational inputs across LEOP/EOR and on-station phases.

Designs, implements, and operates cloud networking (primarily Azure) and hybrid connectivity, integrating SaaS and on-prem systems. Automates deployments using Terraform, PowerShell, CLI and ARM templates, monitors performance and security, supports Kubernetes network environments, and collaborates with architects, DevOps, SRE, and cybersecurity teams.

Lead development and automation of the Flight Dynamics System (FDS), building CI/CD pipelines, operational scripts, and integrations. Plan and execute orbit determination, maneuver planning, station-keeping, LEOP/EOR campaigns, propellant tracking, and SSA integration. Mentor FD team, collaborate with SOC Systems and vendors, document workflows, and present technical reports to management.

Support development and operation of the Flight Dynamics System for LEO satellites by performing orbit determination, conjunction assessment, maneuver planning and post-maneuver validation. Assist with FDS development, verification, automation scripting, on-station orbit management, LEOP/IOT/EOR campaigns, and prepare technical reports for management.

Manage and support Windows and Linux production servers and AWS infrastructure. Maintain hosting platforms (Plesk, WordPress), handle onboarding/offboarding, incident response and on-call duties, improve documentation and processes, harden security (patching, access controls, audit logs), and automate repetitive tasks.

Design, build, test, and maintain Magnet One cloud platform features across front-end and back-end. Collaborate on architecture, perform code reviews, troubleshoot defects, and drive best practices for secure, performant, and maintainable software.

Drive integration and verification of 5G RAN features: define lab configurations, create test plans, design and run test cases, debug with software teams, perform root-cause analysis, document results, and support test automation.

Design, develop, and execute automated tests and system-level validation for file systems on embedded hardware. Debug software-hardware interactions, create test plans and documentation, maintain automation lab infrastructure, report defects, and collaborate with development and integration teams to improve test coverage and product reliability.