Top Software Engineer Jobs in Ottawa

Develop and maintain Cisco Nexus Dashboard’s Kubernetes-based infrastructure platform. Responsibilities include core platform engineering, multi-node cluster deployment and upgrades, backup and restore services, anomaly detection, audit logging, centralized authentication and authorization, certificate lifecycle management, and scalability optimization. The role also involves developing microservices, prototyping AI solutions and workflows, and creating comprehensive software test plans.

Design and develop scalable, secure frontend web applications for connected embedded systems. Lead frontend architecture, collaborate with backend/embedded teams, implement device provisioning, telemetry visualization, and remote management UIs. Optimize performance, accessibility, and maintainability; mentor engineers, participate in reviews, and drive frontend best practices.

Own the architecture and technical strategy for Square’s go-to-market technology stack. Build and operate production AI agents, automated workflows, and integrations that improve sales productivity. Lead complex technical initiatives, establish AI reliability and security guardrails, define evaluation metrics, and guide build-versus-buy decisions. Partner with Sales, Product, Data, and Engineering leaders while mentoring engineers and remaining hands-on across design, implementation, testing, deployment, and operations.

Develop high-performance C/C++ SDK software for Nokia’s coherent DSP ASICs and optical networking products on Linux. Collaborate with ASIC, firmware, hardware, and architecture teams across pre-silicon development and post-silicon validation. Build APIs, frameworks, and automation solutions while addressing hardware-software integration, performance, testing, debugging, and system quality challenges.

Deploy and integrate Arondite’s software with defence customers across Canada and internationally. Responsibilities include writing secure, robust code; interfacing with autonomous and robotic systems; integrating unfamiliar platforms and data sources; testing in field environments; gathering user feedback; refining implementations; and sharing field insights with engineering teams. The role requires customer-facing communication, autonomy, adaptability, and frequent on-site work, with Ottawa as the intended base.

Develop, launch, and maintain backend systems for card issuing and transaction processing. Break down projects, collaborate with product/design/analytics, write clear well-tested code, support operations and on-call duties, create/monitor metrics, perform code reviews, and participate in hiring and team growth activities.

Build and ship full-stack features for a real-time collaborative content platform, spanning backend services, APIs, and frontend systems. Contribute to architecture and technical design, write tested and maintainable code, collaborate with product and design, integrate AI tools and capabilities, participate in code reviews, and help shape an early-stage product.

Build and deploy AI agents that automate internal business processes. Responsibilities include authoring reusable agent skills, integrating systems through MCP, creating evaluation sets, deploying production workflows with permissions and audit trails, and partnering with data engineers. The role requires translating business processes into reliable agent workflows, supporting deployed agents, and maintaining operational quality using Python, SQL, Git, CI, and containers.

Leads and develops a software engineering team responsible for medical imaging solutions. Oversees technical execution, architecture, code quality, testing, delivery, regulatory compliance, production reliability, and incident response. Partners with Product Management, QA, Support, and R&D teams to deliver healthcare software capabilities. Coaches engineers, improves development practices, establishes AI-assisted development guardrails, and contributes to technical strategy and innovation.

Design and develop scalable, high-performance data and API infrastructure for real-time processing. Mentor engineers and collaborate with teams to enhance AI model evaluations.

The role involves designing and building data pipelines for analyzing user feedback on AI models, ensuring data quality and infrastructure scalability.

Lead the Treasury team to develop and maintain backend services ensuring reliability in financial transactions, while implementing features and improving systems.

Develop and optimize multithreaded, multicore embedded C/C++ applications in Linux environments. Troubleshoot software and system-level issues, support customer-reported problems, identify root causes, and communicate resolutions. Collaborate cross-functionally to design and validate solutions, interpret hardware schematics, and contribute to Python-based automation and tooling.

Design and build scalable APIs, cloud-native services, and applications supporting millions of users. Own service reliability, performance, testing, production incident response, and continuous improvement. Collaborate with product and architecture teams, participate in design and code reviews, contribute to technical decisions, and mentor engineers while delivering high-quality software in a fast-paced environment.

Develop and maintain high-availability next-generation 911 call-handling software deployed in cloud and on-premises environments. Responsibilities include Java application development, web development, REST API and microservices implementation, software and hardware integration, testing, documentation, observability, and troubleshooting. The role works within Agile Scrum teams and uses modern DevOps, CI/CD, and source-control practices to deliver reliable emergency communications solutions.

Build scalable, high-performance front-end solutions for 3D interior-decor experiences using computer vision. Collaborate with product, design, stakeholders, and engineering teams to deliver customer-focused features. Own systems through development, deployment, operation, and continuous improvement while supporting partners and maintaining high quality. The role offers mentorship and growth in a remote-first environment.

Build and maintain client-facing software within a monolith and microservices architecture. Responsibilities include scaling systems, meeting regional regulatory requirements, launching validated features, developing high-performance REST APIs, tuning database queries, supporting automated testing and continuous releases, participating in on-call support, mentoring junior developers, and collaborating directly with clients when needed.

Design and build distributed systems for a high-performance CI/CD execution platform. Responsibilities include orchestrating Supabase Branch lifecycle operations, provisioning ephemeral sandboxed environments on AWS, scheduling concurrent builds, optimizing pipelines through caching and artifact reuse, handling retries and failures, instrumenting observability, and developing configuration and infrastructure integrations. The role requires strong Go and TypeScript skills, cloud infrastructure experience, and a production operations mindset.

Build and maintain scalable integration and end-to-end test automation frameworks and CI pipelines. Optimize test execution, improve stability and reporting, support engineering teams with triage and best practices, write technical specs/ADRs, participate in on-call rotation, and collaborate across regions to evolve the companys test strategy and developer productivity tooling.

Develop and maintain a low-latency, high-performance game streaming application across multiple platforms. Responsibilities include UI, video encoding and decoding, networking, input devices, video rendering, UDP protocols, and production C development. The role involves solving complex performance challenges, deploying code to millions of users, collaborating with a globally distributed team, mentoring engineers, and responding to customer needs.

Build and improve GitLab authentication services across Ruby on Rails and Go codebases. Design token issuance, validation, identity, access management, passwordless authentication, workload identity federation, and secure automation features. Migrate authentication paths to GATE while supporting multiple deployment models, address reported vulnerabilities, optimize performance, review code, establish engineering standards, and collaborate on complex projects in a remote, asynchronous environment.

Build and improve scalable full-stack products for higher education, owning initiatives across the software development lifecycle from discovery through release. Collaborate with Product, Design, and Engineering in a cross-functional Scrum team, experiment with AI technologies, resolve bugs, complete tickets, and deliver reliable, tested, user-focused features.

Own and deliver high-availability, low-latency backend systems supporting authentication, verification, and fraud journeys across web and mobile. Lead quarterly goals, guide engineers through ambiguous problems, collaborate with product, design, and analytics, resolve technical and business issues, monitor system availability, improve engineering standards, support on-call operations, and develop team talent.

Join Texas Instruments’ Embedded Processing Software Engineering Tools team in Toronto through a first-year Career Accelerator Program. Develop desktop and cloud-based embedded tooling, contribute to complex application software, learn software development life cycles, and work with embedded devices, SDKs, and industry-standard tools. The role requires collaboration, problem-solving, communication, and programming experience with TypeScript, JavaScript, React, HTML, and CSS.

Design and build Samsara’s cloud governance platform, including IAM guardrails, security controls, compliance automation, and software supply-chain security tooling across AWS and GCP. Develop reliable distributed systems, secure CI/CD patterns, and SAST/DAST capabilities. Contribute to technical roadmaps, collaborate across infrastructure, security, compliance, and engineering teams, and communicate design tradeoffs while mentoring teammates through reviews and pairing.