Top Linux Jobs in Ottawa

Lead and execute incident response engagements, perform host and network forensics across Windows, macOS, and Linux, conduct basic malware analysis and reverse engineering, develop hunting methods, produce reports and remediation plans, engage with legal and executives, and contribute thought leadership and public-facing content.

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.

Design, develop, debug, and test cloud-connected firmware features (C/C++ and Go). Support and scale IoT device fleet, build observability and rollout metrics, triage customer/QA issues, and collaborate cross-functionally to deliver production-ready firmware.

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.

Design, develop, test, and maintain high-availability cloud and container infrastructure for edge computing. Contribute to StarlingX and open-source projects, build configuration management, process monitoring, backup/restore, and fault-tolerant solutions across multiple Linux hosts using Kubernetes, OpenStack, and related tooling.

Lead design and development of XDR and DNS-based cybersecurity backend services. Translate security requirements into secure, scalable code, perform code reviews, mentor engineers, support CI/CD, containerized/cloud deployments, troubleshoot performance and vulnerabilities, participate in architecture decisions, maintain documentation, and join a rotating 24/7 on-call incident response schedule.

The Senior Cloud Tester develops high-quality, testable code for Linux processes, manages configurations, resolves issues in distributed systems, and contributes to an open-source cloud project, ensuring high availability for applications.

Develop and manage cloud-native configuration management solutions, Kubernetes operators, and high-performance applications for Linux systems, ensuring security, resilience, and scale.

Design and implement secure boot architectures and SSD/data-at-rest encryption (key hierarchy, provisioning, rotation, secure erase). Integrate TPM 2.0, PKI, and cryptography into x86 platforms, work with hardware, platform, and manufacturing teams, and debug Linux/RTOS embedded firmware to operationalize security at scale.

Lead security architecture, engineering, and advisory activities for defence/government IT environments. Design secure architectures, assess security technologies and protocols, perform risk analyses, produce technical reports and advisories, conduct data classification, develop training, and brief senior stakeholders while applying government security frameworks and best practices.

Design, develop, test, and support embedded firmware for Intel, Power, and ARM platforms. Analyze requirements, read IC datasheets and schematics, perform architecture/design/code reviews, evaluate new technologies, debug software/hardware, and collaborate with multidisciplinary teams to bring up boards and improve processes.

Provide hands-on design, administration, hardening, and operational support for client networks and security tooling; lead ZTNA and cloud security work; support active incident response, vulnerability remediation, backup/DR testing, and deliver client documentation while participating in on-call rotations and rapid IR mobilizations.

Design and deliver cloud-native, containerized architectures and IaC for the Royal Canadian Navy Synthetic Training Hub. Build and containerize components, produce architecture/network/authentication/security documentation, and support deployment pipelines and infrastructure to enable scalable, rapid redeployable training environments.

Join as an SDET to design and manage automated test suites, create and maintain test cases and plans, write unit and API tests, track and verify defects, debug complex systems, and integrate testing into CI/CD pipelines while collaborating with engineering and DevOps.

Provide web and telephone technical support for Fortinet products (FortiMail, FortiVoice, FortiRecorder, FortiSandbox). Troubleshoot network/security issues, collect and analyze configuration, network and packet trace data, recommend corrective actions, reproduce customer environments in lab, consult documentation, escalate and manage cases to closure, and educate customers on product and networking gaps.

The role involves designing and developing board support and device driver software, testing hardware, and working within a team to resolve field-found problems, ensuring software meets group guidelines.

Develop, test, and maintain mission-critical sonar software. Participate in design, code reviews, troubleshooting, integration, and documentation. Collaborate with cross-functional teams and support lifecycle activities; contribute to design reviews and technical support.

Design, develop, test, integrate, and maintain mission-critical aerospace software. Produce design and test documentation, participate in code reviews, troubleshoot issues, collaborate cross-functionally, and present technical content at reviews.

Build and maintain full-stack web portal components using Node.js and Go, develop React+TypeScript UIs, work with PostgreSQL and Redis, containerize with Docker, assist with Kubernetes/Helm deployments, and implement OAuth2/OIDC security for high-scale communication systems.

Perform manual and automated regression testing for FortiMail products, create and run test cases, automate tests with scripting, identify and track defects, collaborate with developers, troubleshoot network/security issues, and maintain QA documentation and test specifications.

Develop and maintain security/networking software in C/C++ on Unix/Linux throughout the full development lifecycle. Work on TCP/IP and multithreaded applications, debug with Linux tools, collaborate with global engineering and product teams, and apply strong problem-solving and communication skills.

Develop cross-platform desktop and full-stack web applications (Electron, React/Node.js), implement networking and telephony protocols (VoIP/SIP, XMPP, WebRTC), integrate audio/video codecs, and work with cloud services. Own assigned tasks, troubleshoot complex issues, and collaborate with global engineering teams to deliver secure networking/security features.