Top Software Engineer Jobs in Ottawa

Own embedded C/C++ software architecture and technical direction across multiple device projects. Lead cross-functional delivery, develop and debug Linux-based embedded software, integrate cellular, networking, IoT connectivity, and sensors, and connect devices to a cloud platform. Mentor engineers, establish development standards, resolve technical risks, and promote modern engineering practices.

Design, architect, and implement new features for the Spellbook application while collaborating with product management and improving existing functionalities using AI technologies.

The role requires designing and developing web applications and backend systems, integrating LLMs, and ensuring quality software delivery.

The Software Engineer will develop backend systems for an AI Energy Agent, including data integration, microservices, and scalable architecture, focusing on performance and reliability.

The Founding Software Engineer will build and enhance crisis-intervention software, focusing on mobile and web applications for government welfare, ensuring compliance and integrating data securely. Responsibilities include feature development, security enhancements, and managing interns.

The Full-Stack Engineer will develop and maintain web applications, translating UI/UX designs into responsive apps, optimizing applications, and writing clean code.

As a Software Developer II, you'll implement .NET solutions, maintain quality assurance, collaborate with teams, minimize technical debt, and advance your skills using AI-driven tools.

Responsible for designing and implementing authentication features in Go and TypeScript, enhancing Auth architecture, and collaborating with teams to improve user experience.

The Senior Full Stack Software Developer will design, develop and implement scalable applications, manage system architecture, mentor developers, and drive engineering excellence.

Design and maintain backend services and infrastructures focusing on Node.js, TypeScript, and Kubernetes, ensuring reliability and scaling.

Lead platform engineering to improve developer productivity, CI/CD, build systems, monorepo health, and internal tooling (80%); contribute to product features, scalable APIs, and AI-native marketplace infrastructure (20%).

Owner of end-to-end production problems: design, build, experiment, ship, and measure outcomes across backend, frontend, data pipelines and AI. Act as a technical leader, reviewer, incident mitigator, and cross-functional partner to product and design while advancing AI-driven tooling and safeguards.

Own and set direction for a large domain, design cross-team architecture, build production systems (often AI-enabled), partner with product/design/data, coach senior engineers, and remain hands-on in code and delivery.

Develop, integrate, maintain, and support enterprise HRMS and mission-critical applications. Write and debug PL/SQL and other code, build interfaces for data synchronization, produce custom reports, and deliver enhancements while working in an Agile environment for the Canadian Armed Forces' application suite.

Build and maintain PHP and Python services and RESTful APIs powering credit card issuance, rewards, and payments. Own features end-to-end, make architectural decisions, optimize MySQL queries, integrate with banking cores and payment networks, and mentor junior engineers while working asynchronously in a remote-first environment.

Build and maintain cross-platform mobile apps (primarily Flutter) and full-stack services. Design and operate serverless backend infrastructure on GCP/Firebase, model Firestore databases, implement RESTful APIs and integrations, monitor and debug production systems, support deployments, and collaborate across product, design, QA, and engineering to deliver scalable, well-tested features.

Lead technical strategy and architecture for Coinbase Payments: design and evolve high‑availability, low‑latency funds‑flow and rails systems, drive cross‑team initiatives and reliability improvements, enforce financial correctness, mentor senior engineers, and align stakeholders across product, risk, and compliance.

Build and maintain consumer-facing full-stack products, with a primary focus on React-based frontend development and a secondary focus on backend services. Develop reusable UI components, APIs, microservice integrations, and cloud infrastructure using technologies including JavaScript, Node.js, Golang, GCP, GraphQL, PostgreSQL, Spanner, and BigQuery. Collaborate with product and design teams, uphold architecture and code quality standards, deploy solutions through CI/CD, and mentor other engineers.

Join ROOST's Coop project to design, implement, test, document, and release trust-and-safety features. Work across backend APIs, GraphQL, databases, and UI to improve reviewer workflows, detection integrations, and reporting. Lead code quality, security practices, community contribution reviews, and stakeholder coordination while engaging with users and the open source community.

Join the ROOST Osprey team to design, implement, test, and maintain a high-performance, real-time safety rules engine. Work includes building data/event pipelines, scaling and containerizing services, integrating with Kafka and gRPC, reviewing community contributions, maintaining code quality and security, and engaging with users and open source contributors to prioritize and deliver features.

Integrate drones, sensors, payloads and third-party software into a fleet management platform. Write production-quality Java, C++, and Python code, debug across software, networking and hardware, test in simulation, lab and field, and own end-to-end integrations with vendors, pilots, and product teams.

Design, implement, and maintain real-time embedded platform and application software for networking products. Develop hardware-software interfaces, fault and alarm subsystems, system applications for protection and performance monitoring, and abstractions for low-level hardware and software components. The role requires C or C++, scripting, Git, and knowledge of software design patterns, with opportunities to work with real-time operating systems, testing frameworks, debugging tools, and bare-metal programming.

Design and scale backend systems for consumer-facing financial products, build high-volume APIs, and improve reliability, security, code quality, and operational excellence. Collaborate with product, finance, credit, compliance, support, and analytics teams. Participate in technical discussions, code reviews, and roadmap planning while mentoring peers and applying AI-powered development tools.

Own quality engineering for high-throughput payment systems by designing automated regression suites, performance and load tests, quality gates, external-system emulators, observability-driven test environments, and AI-assisted testing workflows. Partner with feature teams and product leaders to improve reliability, scalability, security, and transactional accuracy. Mentor engineers, support incident prevention, and embed automated validation throughout the software development lifecycle.

Own quality engineering for high-throughput payment systems by architecting automated regression, performance, stress, and load testing. Build emulators for external payment systems, integrate quality gates into CI/CD pipelines, validate microservices, event-driven architectures, and databases, and use Prometheus and Grafana for observability. Apply AI-assisted testing, synthetic data generation, and edge-case analysis while mentoring engineers and preventing incidents through telemetry-driven testing and post-mortems.