Top Software Engineer Jobs in Ottawa

Design and implement a distributed query optimizer for MongoDB: research query systems, architect and build features to improve query performance, collaborate across teams, mentor engineers, and drive long-term roadmap and production-quality changes in a large C++ codebase.

The Senior Back-End Software Engineer designs, develops, and maintains scalable backend systems while taking ownership of the software development lifecycle.

As a Software Engineer, you will design and implement scalable infrastructure systems for AI-powered security solutions, optimize performance, and improve deployment practices across cloud environments.

Maintain and improve cloud service reliability, scalability, and performance. Own IaC and CI/CD pipelines, deployment, rollback, and release operations. Automate cloud operations, participate in on-call rotation and incident response, and troubleshoot cloud, networking, deployment, and backend issues.

Lead design and delivery of scalable backend features, mentor engineers, ensure operational excellence and system reliability, collaborate cross-functionally, and drive architecture and automation improvements.

Design, build, test, and document Tailscale's client-side networking software. Enhance connectivity between clients, subnet routers, and exit nodes. Diagnose and resolve complex customer network escalations, optimize performance and reliability, collaborate with product and engineering, adopt security-centric designs, and engage with the open-source community.

Develop and optimize full-stack software and algorithms for robotic manufacturing systems. Design, implement, test, and integrate AI-driven software, run experiments to improve performance, participate in design and code reviews, and collaborate cross-functionally to deliver robust, scalable solutions.

Drive CI efforts, ensuring reliable and scalable development pipelines, while mentoring other engineers and improving developer productivity through tooling and automation.

The Senior Software Engineer will design, develop, and deliver quality software solutions. Responsibilities include coding, code reviews, performance monitoring, and guiding other engineers. Looking for candidates with experience in SaaS development, cloud environments, and various programming technologies.

Lead design and development of scalable, cloud-native financial and reconciliation systems on GCP. Own architecture, drive technical decisions, mentor engineers, embed AI and automation, collaborate with product and QA, and ensure reliability, performance, and test automation.

Own and evolve Directive's web surfaces for Stratos and company sites: build campaign and reporting UIs, integrate ad/CRM APIs, manage background jobs, containers, CI/CD, databases, telemetry, auth, and LLM integrations; stabilize inherited code and ship production features iteratively.

As a Software Engineer at Canonical, you will design, build, and ship software, improve packaging and distribution processes, and mentor colleagues while contributing to open source projects.

The Junior Ubuntu Software Engineer will design, build, and ship software, focusing on quality and resilience, while engaging with the open source community.

We are seeking 2025 and 2026 Graduate Software Engineers to join Canonical's teams focused on open source software. Responsibilities include product roadmapping, coding in various languages, engaging with the community, and ensuring high-quality performance. Candidates should have an exceptional academic track record and experience with Linux.

The Software Developer will design optimization software, develop features, analyze algorithms, and collaborate with R&D teams to enhance product quality.

Build and maintain core financial backend systems (trading, ledger, billing), transaction processing, reconciliation, and portfolio state management. Design and scale real-time and batch data pipelines, architect APIs and backend services, ensure reliability and observability, and contribute to distributed system design (event-driven, microservices, streaming). Partner with ML teams as needed.

Build and maintain full-stack features spanning frontend UIs and backend services. Design, develop, test, deploy, and support code; participate in architecture discussions, code reviews, and collaborate with Product and QA. Use AI-assisted coding tools, identify technical debt, and contribute to scalable, reliable solutions.

Lead design and implementation of scalable, secure Python-based distributed systems and AI/agentic workflows using LLMs. Own features from design to production, remediate technical debt, ensure code quality and SCA remediation, collaborate with product and engineering leadership, and maintain documentation and observability.

Join the SDK & Extensibility squad to build a TypeScript-first full‑stack platform: SDKs, custom objects, extension marketplace, and an AI-native extension builder. Develop serverless microservices, GraphQL APIs, sandboxed execution, and extensibility primitives; collaborate with product, design, and other squads to deliver safe, discoverable, and multi-tenant extensions.

Design and build platform systems that enhance software shipping speed and confidence, collaborating across engineering teams to improve existing infrastructures and workflows.

Build and ship end-to-end features for Dover's marketplace and ATS. Propose product ideas, implement designs, launch, iterate in production, and collaborate closely with a small engineering team to move quickly and maintain high quality.

Join cross-functional XP teams to deploy and adapt the Imogen generative-AI platform into client cloud environments. Pair program, collaborate with product and client infrastructure/security teams, lead technical discovery, apply XP practices (TDD, CI/CD, refactoring), onboard developers, mentor teammates, and troubleshoot cloud, network, and infosec integration issues.

Design and implement low-level embedded software for x86/ARM platforms in C/C++; collaborate with hardware and software teams to spec, test, and debug vehicle subsystems and sensors (camera, radar, lidar, IMU); work on network devices and time synchronization; perform hands-on hardware bring-up and on-vehicle debugging of buses like I2C, CAN, SPI, UART; ensure reliability and safety for autonomous trucking systems.

Build and maintain backend microservices in Golang for authentication and authorization. Design scalable APIs, deploy services on AWS and Kubernetes, implement secure high-volume access control, write tests, participate in on-call rotation, collaborate on design and reviews, and monitor and optimize performance and reliability.

Lead cross-organizational technical strategy and execution for core sharing and collaboration systems. Architect and implement foundational frontend/backend and platform solutions at massive scale, drive AI/LLM adoption, mentor engineering leaders, resolve systemic bottlenecks, and remain hands-on in critical design, prototyping, and code contributions.