Top Software Engineer Jobs in Ottawa

Join Ericsson's L1 Software Development team to design, implement, and test high-performance Physical Layer baseband features for 5G RAN on multi-core ASIC and cloud/COTS platforms. Develop embedded, real-time software in C/C++, integrate and automate tests, optimize for containerized/cloud environments, participate in code reviews, and apply wireless protocol knowledge (NR/LTE/WCDMA) while working in agile, international teams.

Develop and maintain high-performance 5G L1/L2 baseband software using C/C++. Collaborate with global teams to design, debug, test, and integrate features, follow industry standards, participate in code and design reviews, and prepare systems for 6G readiness.

As a Software Engineer on Cash App's Controls team, you'll develop scalable solutions for trust and safety infrastructure, collaborating across teams and leveraging AI tools.

Build and evolve core AI platform capabilities: design shared execution patterns, APIs, and backend services to support multi-step GenAI workflows, model integrations, and scalable production systems. Collaborate with AI engineers, data scientists, and product partners to turn emerging AI use cases into reliable, extensible platform features.

The Software Engineer II will ship features to enhance Affirm's marketplace, supporting product development and collaborating with design and analytics teams while ensuring operational stability.

The Software Engineer on the Cash App Banking team will design, develop, and deliver new banking experiences, collaborating closely with teams to enhance customer features and performance.

The Software Engineer 3 will design, build, and operate backend services for Cloud Payments, focusing on large-scale distributed systems, collaborating with teams to enhance billing and payment capabilities, ensuring system reliability and customer experience.

As a Software Engineer II, you'll implement critical features, collaborate with teams, maintain full stack systems, and ensure high-quality code in a dynamic environment.

You will design, develop, and launch backend systems, APIs, and collaborate with cross-functional teams to support product development and operations.

Build and operate ML training and serving infrastructure. Design, develop, and launch backend systems, collaborate across teams, support operations and on-call, write well-tested extensible code, and participate in team growth and hiring activities.

As a Staff Fullstack Software Engineer, you'll optimize user monetization systems at Dropbox, leading technical strategies for checkout and subscriptions while mentoring engineers.

The Software Engineer will enhance Lending products for Cash App, focusing on building complex systems, APIs, and collaborating with multiple teams to support economic empowerment through accessible credit.

As a Software Engineer, you will design and build backend services and integrations for financial operations, focusing on scalable technology solutions and AI enablement, while collaborating with cross-functional teams to ensure compliance and data integrity.

Design, build, and maintain backend services for fraud and risk detection at scale. Deliver features end-to-end, partner with Data Science/ML, improve reliability and observability, respond to incidents, and build reusable systems to reduce financial loss and protect users.

As a Software Engineer II, you'll build the ML Feature Platform, collaborate on developing backend systems, and ensure operational availability while engaging in team growth.

The Software Engineer will develop platform infrastructure for Cash App, focusing on scalable solutions and AI-driven tools, while collaborating cross-functionally to ensure customer trust and safety.

The Senior Infrastructure Software Engineer will build and manage a scalable, in-house search platform, ensuring seamless user experiences and expanding capabilities for a global user base.

The role involves designing scalable backend systems for Dropbox's Commerce Platform, focusing on system strategy, reliability, and cross-department collaboration.

The role involves designing and expanding the platform's backend to enhance merchant lifecycle orchestration, executing technical strategy, and improving engineering standards.

The Senior Infrastructure Software Engineer will re-architect Identity systems, focusing on large-scale distributed systems design, API design, and collaborate with teams to implement wide-ranging use cases while mentoring junior engineers.

Seeking a Software Engineer/Senior Software Engineer to design, develop, and deliver quality backend services and APIs using Go, with emphasis on Kubernetes and cloud services.

Design and implement CIAM backend services for registration, authentication, and account management across B2C and B2B platforms, utilizing security standards and automation practices.

As a Software Engineer in Cash App Banking, you'll design, develop, and deliver banking features, collaborating closely with teams to impact consumer banking.

The Software Engineer II will develop APIs, collaborate with teams on projects, ensure system operations, and contribute to team growth.

The Software Engineer/Senior Software Engineer will design, develop, and deliver high-quality software while supporting team collaboration and continuous improvement. They will engage in code reviews and technical discussions.