Top React Developer Jobs in Toronto
Build customer-facing applications, craft performant solutions, participate in code reviews, ensure quality and efficiency, meet customer and business needs.
Seeking an experienced Engineer to join the team and play a vital role in the development and maintenance of web applications. Responsibilities include collaborating with designers, developing high-quality front-end code, optimizing performance, staying updated on web development trends, and working across functional teams for integration.
As a Senior Software Engineer at FOSSA, you will work closely with the team to design, build, and refine core product features. You will have significant ownership in the technical architecture and product roadmap, primarily focusing on NodeJS web application development in Typescript and other languages like Haskell, Rust, and Golang. Responsibilities include owning user-impacting features, building and scaling the core product, and contributing to technical infrastructure.
Join Observable as a Senior Software Developer to design, develop, test, deploy, and improve software for data apps. Work with a close-knit team on new features from frontend to backend. Prioritize workloads, empathize with users, and collaborate with diverse skills in a fast-paced, remote environment.
Fullstack Software Engineer role at Stronghold focusing on architecting, developing, and maintaining payments API platform and cryptocurrency. Responsible for back-end development, scaling, and optimization. Involvement in diverse projects including system design, new feature launches, tech debt reduction, UI design, and server-side performance optimization.
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Design, improve, debug complex, scalable distributed systems. Write extensible, scalable, test-driven code. Collaborate on designing scalable web architecture, APIs, and backend systems. Take ownership of projects from start to finish and contribute to code and technical reviews.
Vartana is seeking a Staff Software Engineer, Backend to help develop the backend architecture and services for their B2B Commerce platform. This role requires technical leadership and experience working on large and complex systems. The ideal candidate has at least 8 years of experience in backend systems, with expertise in Ruby on Rails, Python, Java, or Go.
As a Senior Software Engineer, Backend, you will be responsible for designing, implementing, and operating critical and scalable services for our B2B Commerce platform. You will work with a cross-functional team to understand product requirements and deliver innovative solutions. In addition, you will mentor engineers on the team and contribute to improving processes.
Looking for a talented Full Stack Intermediate Software Developer to work on specific platform projects critical to Paidiem's needs. Responsibilities include collaborating with the team, building and delivering products, and sharing expertise to help deliver products that delight customers and users.
As a Senior Software Engineer, you will work on full stack development using multiple technologies like React JS, React Native, Java, Spring, Kubernetes, and more. You will be responsible for developing efficient code, designing and developing large-scale projects, and ensuring observability. Additionally, you will participate in code reviews, root cause analysis, and work with micro-services architecture.
As a Backend Engineer at Nightfall, you will design and develop data exfiltration prevention apps, drivers, and services on MacOS or Windows. Responsibilities include maintaining mission-critical agents, designing secure software, and writing documentation. Requires expertise in MacOS or Windows development, familiarity with system languages, and minimum 5+ years of related work experience.
Develop API services for VERB's enterprise products, collaborate with third-party web service providers, optimize applications for scalability and performance, debug complex issues, provide architecture guidance and mentorship
Front-End Software Engineer role at Veeva Systems focusing on developing and maintaining the UI of cloud-based applications using modern JavaScript frameworks like React. Collaborate with back-end and design teams to solve complex problems that impact the life sciences industry.
Full Stack Software Engineer role on the Growth Marketing squad at Change.org, responsible for developing, scaling, and maintaining Change.org's web application and microservices to drive user growth and petition creation. Collaborate with cross-functional teams to enhance the architecture and user experience. Join a social impact company with a user-generated revenue model and a mission to empower individuals to create change globally.
Seeking a seasoned backend developer to design and build the future of Apollo's product platform. Responsibilities include building and maintaining reliable internal services, designing core backend microservices, and working on complex problems in a tech stack including GraphQL, TypeScript, Kotlin, Rust, Postgres, Kubernetes, Druid, and Kafka.
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Backend engineer role at Coinbase's Platform Product Group working on building crypto-forward products and features. Responsibilities include building new services using Golang, designing scalable systems, collaborating with cross-functional teams, and turning product vision into a roadmap.
Join eBay's Product, Item, and Transactions Experience Team as a Senior Software Engineer (Backend) responsible for the core systems and applications of eBay, driving billions in revenue and impacting millions of users. Collaborate in an agile environment, lead web technologies, and design optimal solutions to meet business needs.
1Password is seeking a Backend Developer with 3-4 years of experience in software development and proficiency in Rust. The role involves defining and executing development plans, collaborating with teams, and ensuring high-quality work. Bonus points for experience in Go programming language and scaling applications.
Join Harmonic as a Backend Software Engineer to scale knowledge graph infrastructure, manage time series data, and mentor engineers. Focus on building highly performant, scalable systems using Python, Java, and various data storage solutions.
Join as a Staff Software Engineer specializing in ReactJS, leading the design and implementation of web applications, mentoring junior developers, and driving innovative solutions in a collaborative environment at Walmart Global Tech.
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1Password is seeking a Backend Developer with 3-4 years of experience in software development, proficiency in Rust programming language, and experience in product engineering. The role involves defining and executing development plans, collaborating with cross-functional teams, and ensuring high-quality work. Bonus points for experience with Go programming language and scaling applications.
Design, implement, and maintain robust and scalable full-stack components, integrate AI components and models, design and implement REST APIs, manage version control using GitHub, balance rapid development with regulatory compliance, collaborate with cross-functional teams, and communicate solutions to stakeholders.
Experienced backend engineer needed to join the Orchestration Platform team at a healthcare technology company. Responsibilities include building orchestration capabilities, collaborating with various engineering teams, and executing multi-year vision. Ideal candidate must have strong software engineering fundamentals and a Bachelor's degree in Computer Science or equivalent.
Seeking experienced frontend engineers to build out the next generation of crypto-forward products and features, focusing on making cryptocurrency accessible to global users. Responsibilities include designing secure services, building mass market interfaces for digital currency apps, and working with product managers to execute the roadmap. Must have positive energy and contribute to a collaborative work environment.
As a Senior Full-Stack Engineer at NimbleRx, you will be responsible for architecting technology and customer experience for multiple web products. You will work with a team of software engineers to build high-quality code and deliver features on time.
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