Top Software Engineer Jobs in Ottawa

As a Frontend Software Engineer at Sentra, you will build and ship frontend features using React and TypeScript, collaborating on design implementations and adapting to a fast-paced startup environment.

Build scalable backend systems, develop LLM agents, and ensure fast adaptation in a dynamic environment at Sentra.

The Full Stack Software Engineer will develop user-facing features and back-end infrastructure for autonomous AI agents, ensuring performance and usability.

Join the Surfaces team to build user-facing UIs and APIs for managing PlanetScale databases. You'll work with technologies like React, Ruby on Rails, and Go, focusing on developer experience and solving user problems.

The Software Engineer will build database infrastructure, solve complex distributed systems challenges, and work directly with customers to provide technical solutions.

As a Senior Software Engineer at Vanta, you'll lead complex projects, design and develop product functionalities, and contribute to the engineering culture, primarily focused on compliance solutions using modern frameworks.

As a Full Stack Software Engineer II, you will handle end-to-end execution of complex features, mentor junior engineers, and monitor system performance, contributing to technical improvements.

Develop and oversee user-facing features, create REST APIs, and collaborate with cross-functional teammates, ensuring product quality and mentoring junior engineers.

Design and build highly scalable, distributed real-time microservices (primarily in Go). Work with large datasets and databases, use messaging queues (Kafka, SQS, Kinesis), and write memory- and performance-optimized code for production ad-tech systems.

Build, maintain, and operate Mission Control web application and supporting services for satellite operations. Implement and improve HTTP APIs, design and deploy infrastructure, automate operational workflows, and collaborate with cross-functional teams to ensure reliable satellite scheduling, telemetry processing, and mission automation.

Build and maintain core internal sportsbook services using Elixir, Rust, and Java. Design and deliver APIs (gRPC, GraphQL), optimize SQL/Postgres queries, set up monitoring, review code, mentor engineers, and collaborate across teams to improve scalability and reliability.

Build and maintain platform and infrastructure systems across the stack: cloud infrastructure, IaC, CI/CD, queues, observability, auth, and developer experience to improve reliability and developer velocity.

Design, develop, and deploy scalable APIs and features for a SaaS Field Service Management product. Optimize data persistence using Doctrine ORM and MySQL, refactor Symfony-based systems, reduce technical debt, mentor engineers, enforce coding standards through reviews, and produce API docs and design artifacts to drive architectural decisions.

Design, build, and maintain scalable data systems and pipelines; ensure SLOs and reliability; partner with Product, Sales Ops, and Finance to deliver analytics; support self-service tooling; contribute to data architecture, testing, and documentation.

Help train large-language models to write production-grade code by comparing, ranking, repairing, and refactoring AI-generated code, while providing feedback for reinforcement learning.

The AI Software Engineer will train large-language models, compare code snippets, and provide feedback to improve AI-generated code. Requires strong C++ skills and attention to detail.

Help train large-language models to write production-grade code by ranking, repairing, and providing feedback on AI-generated code snippets, with a focus on logical correctness and performance.

Join our team to help train large-language models by evaluating and improving AI-generated code, leveraging your coding and communication skills.

The role involves training large-language models by evaluating and refining code snippets, providing feedback, and maintaining an RLHF pipeline. Candidates need strong Python skills and code review expertise.

As an AI Software Engineer, you'll help train large-language models in Rust by comparing code snippets, repairing AI-generated code, and providing feedback to enhance model learning.

This role involves training large language models to improve code through evaluation and feedback, focusing on correctness, efficiency, and communication.

Develop and maintain web applications using Node.js, React, and Go, ensuring high performance and user experience, while mentoring junior developers.

Own and drive technical outcomes for Dropbox, defining long-term strategies. Lead AI adoption, influence roadmaps, and ensure engineering excellence across multiple teams, remaining hands-on in software development.

The Staff Software Engineer (UI) will lead front-end technical strategies, mentor teams, and contribute to development and system architecture in a collaborative environment.

Lead design and architecture of Square's Local Services products. Collaborate with teams, mentor engineers, and improve technical direction and system resilience.