Top Software Engineer Jobs in Ottawa

The Staff Software Developer will lead AI-driven solution development, mentor engineers, and collaborate on product roadmaps, emphasizing efficient coding and technical best practices.

As a Data Engineering Architect, lead the transformation of data engineering into a modern platform, oversee architecture and technical leadership, design scalable systems, ensure data quality and governance, and mentor teams for a data-driven culture.

Lead architecture and evolution of Juniper Square’s distributed services, cloud infrastructure, and developer platform. Design scalable, multi-tenant, event-driven systems; build paved-road developer tooling, CI/CD, and observability. Hands-on coding, prototyping, and performance troubleshooting. Enable production AI/LLM workloads, ensure security/compliance, support enterprise upmarket needs, and mentor engineering teams to raise operational excellence and reliability.

Design, build, and productionize LLM-powered applications and agentic AI systems. Develop data and inference pipelines, deploy and monitor models, define evaluation frameworks, optimize performance/cost, and enforce governance, safety, and observability to deliver scalable AI-driven customer experience solutions.

Develop and maintain backend services and RESTful APIs for a credit card and payments platform. Work across the full stack with MySQL and third-party integrations, debug production systems, collaborate on feature design, and learn the payments domain while shipping production code.

Lead architecture and development of scalable, secure full‑stack services for card and payments systems using PHP and Python. Design REST APIs and microservices, optimize MySQL performance, drive CI/CD and testing standards, champion security and compliance, influence AI tooling strategy, and mentor mid and junior engineers.

Work directly with clients to scope, prototype, and deploy AI-powered workflows. Build scalable systems using LLMs, embedding and retrieval systems, and backend infrastructure. Translate messy data and operational constraints into production-ready solutions, iterate with stakeholders, and maintain deployed systems (including on-call support).

Design and build scalable full-stack web applications and APIs, drive architecture across frontend and backend, partner with product and design, mentor engineers, improve developer productivity with tooling and AI-assisted workflows, and migrate legacy systems into modern platforms.

Build and operate Wealthsimple's ML platform to take models from experimentation to production: design architecture, build framework-agnostic training/inference services, ensure scalability and observability, enable self-serve tooling for data scientists, and own long-lived ML infra projects (Kubernetes, Ray, LLM integrations).

Design, build, and operate MaintainX's end-to-end search and retrieval platform, including indexing, ranking, relevance tuning, integrations, and AI-enhanced semantic/vector search. Optimize distributed systems for reliability and performance, iterate quickly with product teams, and participate in business-hours on-call duties.

Lead architecture and core runtime foundations for a distributed scanner platform, driving reliability, observability, performance, and engineering rigor while collaborating with hardware and ML teams and mentoring engineers.

The Solution Test Engineer tests and validates cloud solutions, leads testing strategy creation, mentors engineers, and collaborates with teams to deliver quality solutions.

The Embedded Software Engineer will develop, test, and deliver high-quality designs and code, focusing on embedded Linux software. Responsibilities include creating automated tests, resolving issues during verification, and participating in an agile development process.

Design, implement, and integrate embedded C/C++ software for Linux and RTOS on SoC platforms interfacing with ASIC/FPGA hardware. Own full lifecycle from requirements to delivery, mentor junior engineers, support field deployments, and apply coherent optics and networking protocol expertise to optimize system performance.

Design and build scalable full-stack web applications and APIs, drive architecture across frontend and backend, partner with product and design, mentor engineers, improve developer productivity via tooling and AI-assisted workflows, and migrate legacy systems to modern platforms.

Design and build AI-powered internal accounting tools and integrations. Own architecture, security, and code quality; translate accounting processes into production-grade backend systems; collaborate with product and accounting staff; document systems and scale tools responsibly.

As a Senior Software Engineer, you will develop and maintain Alpaca's platform services, including event streaming infrastructure and authentication systems, while ensuring software quality and reliability.

As a Senior Software Engineer, you'll design and build scalable market data systems, improve API architecture, and enhance overall system performance, contributing to Alpaca's infrastructure for trading financial assets.

As a Senior Software Engineer, you'll lead the design and development of web applications, mentor peers, and ensure high-quality, secure code using Ruby on Rails, GraphQL, and React.

Develop software and systems for embedded platforms at Aquabyte, focusing on sensor interfaces, network reliability, and hardware diagnostics while collaborating with research teams on machine learning models.

Design, develop, and optimize Acumatica ERP customizations, workflows, integrations, and reporting for financial services. Lead integrations with payment gateways and third-party financial tools, enforce Acumatica best practices, support UI/UX enhancements, and ensure upgrade-safe customizations while collaborating with cross-functional teams.

As a Sr. Software Engineer, you'll design and develop features for a SaaS platform, collaborate with teams, tackle technical problems, and ensure high-quality solutions with an ownership mindset.

Seeking a Senior Software Engineer to design and build a microservices-based SaaS platform, focusing on Java and AWS technologies while ensuring robust deployment and customer satisfaction.

The Senior Software Engineer ensures the reliability and performance of the Mural editor, collaborates on technical projects, and designs APIs for real-time collaboration. Responsibilities include product engineering, mentoring, and improving team processes while focusing on performance and developer experience.

Design, build, and operate production AI systems, enhance backend services, improve reliability, and collaborate on technical projects within the AI-native engineering team.