api jobs in Toronto

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of...

Design enterprise APIs and platforms at Stripe Radar, connecting machine learning and AI capabilities with customer fraud prevention workflows. As a software engineer, you will help businesses understand and stop fraud and abuse. The work includes APIs, dashboards, user experiences, and infrastructure. You will own projects from technical design through...

Build cloud-native APIs and enterprise integrations with Manulife in hybrid Toronto, combining RESTful services, Azure, and Kubernetes engineering. Support secure modernization.As a Senior Cloud Engineer, you will develop APIs, web services, and integration solutions across enterprise platforms. You will design cloud-native applications and infrastructure...

Linuxassociation is seeking a Senior Systems Administrator / Infrastructure Operations Specialist in Toronto, ON to manage and optimize enterprise infrastructure, middleware services, gateway components, and REST API integrations.The role requires 3–9 years of systems administration experience, strong problem-solving, and collaboration with...

Apply TypeScript and AWS expertise to secure REST API engineering, including Cognito authentication and on-premises cloud integrations.As an experienced API Developer, you will build scalable REST APIs using Node.js and TypeScript. Your technical focus includes AWS Cognito, token-based authentication, secure on-premises to AWS integrations, and...

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...

A technology consulting firm in Toronto is seeking a Senior Software Developer to work in a hybrid capacity. The role involves enhancing existing applications, developing APIs, and ensuring high-quality, scalable software solutions. Candidates should have experience in cross-platform mobile development and integration with various systems. Strong...

RQ11528 - Software Developer - API - SeniorJob DescriptionResponsibilitiesRequired 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, maintaining, and conducting unit tests. o Analyzes, designs,...

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...

Analyze API integrations remotely for Fidelity Clearing Canada, using requirements gathering and technical documentation to connect business needs with technology solutions. As a Business Systems Analyst, you will examine, design, and recommend application or operating systems based on business requirements. You will collaborate with stakeholders,...

Build machine learning inference APIs with Python and distributed systems expertise at Cerebras Systems, connecting GPU prefill with Cerebras decode. As a Senior Software Engineer, you will develop production software across inference APIs, model integration, and request-routing services. Your work spans API design, model serving, and distributed systems,...

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...

Randstad Canada seeks an experienced Specialized IT Consultant - Senior to lead the technical design, development, and integration of secure, scalable microservices-based components. You will build high-performance RESTful APIs, implement event-driven messaging, and orchestrate containerized deployments in cloud environments. Location: Toronto, ON — Fully...

Shape modern digital experiences with React, Redux, and responsive CSS at Manulife’s hybrid engineering workplace in Waterloo, Ontario. This Full Stack Software Engineer develops front-end applications while integrating APIs and server-side services. The experienced role involves reusable component architecture, accessibility throughout development, and...

Analyze API integrations remotely for Fidelity Clearing Canada, using requirements gathering and technical documentation to connect business needs with technology solutions. As a Business Systems Analyst, you will examine, design, and recommend application or operating systems based on business requirements. You will collaborate with stakeholders,...

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...

Lead complex API integrations as a Senior Solutions Engineer at OpenTable in Toronto, using REST APIs and system integration expertise. This hybrid role expects office attendance two days weekly. You will independently own sophisticated implementations across OpenTable’s partner and restaurant ecosystem. The work spans technical discovery, solution...

Shape Monetization roadmap decisions through APIs, data modeling, and product experiments at Coursera. Work remotely, onsite, or through a combination.This Staff Software Developer role balances hands-on backend development with technical leadership and cross-functional collaboration. You’ll design services, develop product APIs, model data, and analyze...

Join Wealthsimple as a Product Manager focusing on API strategy and client connectivity. Shape how clients interact with financial data securely and effectively. In this pivotal role at Wealthsimple, you will manage the APIs that streamline client access to financial data. You are expected to formulate the strategy for our Public API while improving the...

Build RESTful APIs with Java and Oracle ADF BC REST at CMiC on York University’s Toronto campus. Apply object-oriented programming and SQL skills.As a Software Engineer, you will support CMiC’s front-end applications through API development. The work includes Java, Jersey, J2EE, REST over HTTP, and database-level development using SQL and PL/SQL. You...