Top Front End Developer Jobs in Toronto

Looking for a Senior Full Stack Engineer to work on a collaborative money management platform, making high-impact decisions, and shaping the future of the product. The role involves full development lifecycle, infrastructure management, testing strategies, and agile project planning.

As a Senior Software Engineer on the Email team at Seismic, you will be responsible for designing and building React applications, reusable components, and browser extensions for the mission critical email system and features. You will collaborate closely with team members, stay updated on frontend development trends, and drive innovation within the company.

We are looking for a passionate React Developer to join our engineering team and deliver high-quality software solutions for web and mobile applications.

Looking for a Full Stack Developer (Backend Bias) to design, develop, and maintain web applications using C# or Java. Responsibilities include implementing front-end features, creating and managing microservices, writing tests, optimizing performance and security, mentoring junior developers, and collaborating with stakeholders in an agile environment.

As a Senior Back-end Engineer at Faire, you will deliver core features of the Kotlin server, design and build new APIs for the website and mobile app, write integration tests, share ownership of the product, and help improve customer experience. The role offers a competitive salary range, equity, and benefits.

As a Senior Staff Full-Stack Engineer on the Solo team at Mozilla Corporation, you will work on the Solo AI Website Creator project. The role involves building back-end infrastructure on Google Cloud, assisting with front-end experiences, enabling integrations with various services, and collaborating with cross-functional teams. You will have the opportunity to influence the future of the product and operate in a startup-like environment.

Join Frontify as a Senior Backend Engineer to enhance the brand and digital asset management platform, focusing on reliability, security, and performance. Work on extending, modernizing, and scaling backend services.

Seeking a Senior Back-End Engineer with 3 years of experience in Ruby and Ruby on Rails to join the Fakespot team within Mozilla. Responsibilities include creating robust applications, troubleshooting existing ones, and maintaining/expanding APIs. Knowledge of PostgreSQL, MySQL, Git, Docker, and full-stack web development required. Bonus points for Golang, Python, and Kubernetes experience.

Seeking a Staff Software Engineer to lead the backend engineering team at StackAdapt, a leading programmatic advertising platform. Responsibilities include integrating data, architecting scalable backend systems, providing technical leadership, and solving technical challenges. Requires 5 years of experience in software development in distributed systems and familiarity with adtech or Martech experience.

Join Perplexity as a Backend Software Engineer to lead design, implementation, and scaling of systems for API products. Responsibilities include designing and maintaining APIs, leading technical projects, and aligning technical decisions with strategic initiatives. Qualifications include experience with natural language/LLM APIs, infrastructure management, scalability, and user experience. 4+ years of engineering experience required.

Backend Engineer on the Scheduled Rides or Events team at Lyft, responsible for building new products to enhance riders' and drivers' experience with rideshare. Collaborate with cross-functional teams to deliver business-critical initiatives and new use cases.

The Senior Software Engineer will be responsible for full stack development using technologies like React JS, React Native, Java, Spring, Kubernetes, NoSQL, and Kafka. They will work on building tools to enable Associates to serve customers at checkout lanes, participate in design and code reviews, and ensure observability and measurement in projects. The role requires 4+ years of full stack development experience, proficiency in back-end and front-end technologies, experience with micro-services architecture and distributed systems, and strong collaboration skills.

Abnormal Security is looking for a Sr Back End Software Engineer to join the Inbound Email Products (IEP) team. The ideal candidate will have in-depth knowledge about backend and distributed computing. They will work with the Tech Lead, Engineering Manager, and Product Manager to craft the roadmap for the team, lead critical software projects, mentor junior members, and collaborate with other teams to implement customer requests. The candidate must have a BS degree in Computer Science or related field, at least 5 years of industry experience in backend web development, and experience working with distributed teams.

Looking for a Mid-Level Software Engineer with a focus on backend development to join the Chorus Engagement team at ZoomInfo. Responsibilities include designing and creating solutions for a reliable, scalable software platform, collaborating with team members, and maintaining a codebase that supports the business scale. Required qualifications include industry experience, proficiency in Python, Java, or Node.js, backend development experience, and familiarity with various technologies.

As a Senior FullStack Engineer at Corelight, you will lead the development and architecture of backend systems using React and Python, implement serverless architectures, and collaborate with cross-functional teams to deliver high-quality software solutions.

Design, build, evolve, and maintain the foundational frontend ecosystem and underlying tools used by all of Stripe’s product engineering teams. Own and drive changes that increase the productivity of Stripe engineers working on frontend applications. Drive frontend reliability improvements across Stripe products.

Shape and build products for efficient business operations, collaborate with cross-functional teams to develop features, design elegant APIs and user experiences, contribute to infrastructure design and architecture.