api jobs in Toronto

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  • Toronto, Ontario, Canada Magnet Forensics Inc. Full-time

    Magnet Forensics is seeking a Software Development Engineer in Test (SDET) to ensure the quality of deliverables across the software development lifecycle. You will create automated tests and test plans, and collaborate with engineers to improve testability of our one-of-a-kind digital forensic product.The Engineering team builds well-tested, performant...


  • Toronto, Ontario, Canada Rubicon Path Full-time

    RQ09147 - Software Developer - API - SeniorAbout the job RQ09147 - Software Developer - API - SeniorDescription:Responsibilities Required to translate technical systems specifications into working, tested applications. This includes: o developing detailed programming specifications o writing and/or generating code o compiling data-driven programs,...


  • Toronto, Ontario, Canada Spruce InfoTech Inc. Full-time

    Drive innovation as a Senior API Developer in Toronto, ON, focusing on cloud migration strategies. This hybrid role emphasizes expertise in REST APIs and microservices for application modernization. As a key contributor, you'll lead the analysis and migration of Azure and PCF applications to Atlas. Your responsibilities will include refactoring backend...

  • Senior API

    3 hours ago


    Toronto, Ontario, Canada Capgemini Full-time

    Capgemini in Toronto, Canada is seeking a Senior Integration Architect / API Development Lead to drive enterprise integration strategy and API-first architecture. You will set standards for real-time APIs, backend services, event-driven systems, and secure communications.You will lead API and backend technical direction, collaborate with Product, Operations,...

  • Channels Architect

    3 hours ago


    Toronto, Ontario, Canada The Toronto-Dominion Bank (Canada) Full-time

    TD Securities seeks a Channels Architect to define and steward full stack architecture for GTB client experience and connectivity. You’ll drive micro-frontend shells, API contracts, and the integration layer, partnering with Data and Platform architects to enable reliable, scalable delivery.This is a hands-on role with code, design reviews, and strategic...


  • Toronto, Ontario, Canada Insight Global Full-time

    Insight Global seeks a senior software architect to design scalable enterprise applications using Java/Spring Boot microservices. You will lead service-to-service communication, API-first patterns, and cloud-native deployment, while ensuring security, observability, and performance.You will mentor developers, align with architecture and product teams, and...


  • Toronto, Ontario, Canada Compunnel, Inc. Full-time

    Shape the future of backend services as a Backend Software Engineer. Focus on creating and reviewing RESTful APIs using Java/Spring Boot for optimal service performance. In the role of Senior Software Developer, you will lead service design efforts and orchestrate API integrations. This strategic position collaborates closely with Business Analysts to...


  • Toronto, Ontario, Canada Capgemini Full-time

    Elevate your career as a Business Systems Analyst at Capgemini, specializing in API integration and enterprise connectivity. Collaborate with global teams to deliver API-driven solutions that empower leading organizations. Capgemini seeks an experienced Business Systems Analyst with a strong background in API-led integrations. In this role, you will work...

  • Staff Eng, API Design

    3 hours ago


    Toronto, Ontario, Canada eBay Full-time

    At eBay, we're more than a global ecommerce leader — we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts.Our customers are our compass,...


  • Toronto, Ontario, Canada Rubicon Path Full-time

    RQ09329 - Software Developer - API - Senior About the job RQ09329 - Software Developer - API - Senior Required to translate technical systems specifications into working, tested applications. This includes: developing detailed programming specifications writing and/or generating code compiling data‑driven programs, maintaining, and conducting unit tests...


  • Toronto, Ontario, Canada Stripe Full-time

    Make a global impact with Stripe as a Backend Engineer focused on building ergonomic APIs. Join a team meeting evolving user needs through scalable financial solutions. Stripe is seeking a Backend Engineer to enhance its balance management platform and develop a new funds accessibility system. You'll collaborate with diverse teams, including Infrastructure...


  • Toronto, Ontario, Canada Rubicon Path Full-time

    Shape the future of API integration as a Senior Software Engineer focusing on API development. This role demands technical acumen and expertise in enterprise-level software solutions. As a Senior Software Engineer, you will be responsible for the development and support of RESTful APIs in a complex environment. This position allows you to engage with...

  • Data Engineer

    5 hours ago


    Toronto, Ontario, Canada Cognizant Full-time

    **PR / Citizens who lived in Canada for more than 5 years needed due to Pro B clearance** Location- Onsite at Toronto, ON Objective Engage a contract Data Engineer / Backend API Engineer to design and implement internal backend APIs supporting an enterprise data integration platform. These internal APIs will orchestrate processing, validate data, and route...


  • Toronto, Ontario, Canada New Grad 2026 @ Cerebras Systems Full-time

    Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. This architecture allows Cerebras to deliver industry-leading training and inference speeds; over 10 times faster than GPU-based hyperscale cloud inference services. This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking...


  • Toronto, Ontario, Canada Princeton IT Services, Inc Full-time

    Take on a vital role as a Senior Python Backend Engineer focusing on API and platform engineering in Toronto, Ontario. Develop scalable backend solutions for mission-critical financial platforms. This on-site position is suited for candidates with 5-10+ years of strong Python backend development experience. You will design and implement backend services...


  • Toronto, Ontario, Canada Cerebras Full-time

    Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. This architecture allows Cerebras to deliver industry-leading training and inference speeds; over 10 times faster than GPU-based hyperscale cloud inference services. This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking...


  • Toronto, Ontario, Canada Rubicon Path Full-time

    RQ09373 - Software Developer - API - SeniorAbout the job RQ09373 - Software Developer - API - SeniorResponsibilitiesRequired to translate technical systems specifications into working, tested. This includes:developing detailed programming specificationswriting and/or generating codecompiling data-driven programs, maintaining, and conducting unitAnalyzes,...


  • Toronto, Ontario, Canada Virtusa Full-time

    Virtusa is seeking a Senior Salesforce Backend/API Developer in Toronto to design, build, and maintain backend services and APIs on the Salesforce platform. The role focuses on Experience Cloud implementations, case management enhancements, and CI/CD-driven deployments within a collaborative, cross-functional environment.You will work with tools like...


  • Toronto, Ontario, Canada Rubicon Path Full-time

    RQ08889 - Software Developer - API - Senior About the job RQ08889 - Software Developer - API - Senior Description A Note on Assignment Type: This position is currently listed as "Onsite"; however, the Assignment under this request will provisionally be "Hybrid", working 7.25 hours per calendar day, sometime between 8:00 AM and 5:00 PM (excluding breaks)...

  • Staff Eng, API Design

    21 hours ago


    Toronto, ON, Canada eBay Inc. Full-time €180,000 - €240,000 Contract

    At eBay, we're more than a global ecommerce leader we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts. Our customers are our compass, authenticity...