api developer jobs in Toronto

Role: API Developer (REST, Microservices, Cloud) Location: Toronto, ON - Hybrid Responsibilities Lead and contribute to the migration of existing Azure / PCF applications to Atlas, including analysis, refactoring, and deployment. Refactor backend services and UI components to ensure cloud‑native readiness, scalability, and performance. Collaborate with...

As an .Net Developer, you will be a part of an Agile team to build healthcare applications and implement new features while adhering to the best coding development standards . Responsibilities: - - Strong prior experience in end-to-end REST API development using C# and the latest .NET (.NET 7/8) - Experience developing APIs that integrate with internal...

What You’ll Be Doing You’ll be joining CIBC’s Direct Financial Services team. You’ll be at the heart of CIBC’s digital transformation, successfully delivering complex, enterprise-scale mobile projects involving multiple back‑end systems. You will be a key member of the technology team supporting Digital Transformation, successfully implementing...

Associate Business Partner - Senior Talent Acquisition - IT Financial Services at Iris Software Iris's client, one of the world's largest multinational Investment banking and financial services corporations, is looking to hire a Java API developer for a long-term opportunity. Work Location: Toronto, ON (Hybrid Onsite – 4 days a week) Seniority level:...

OverviewAPI DeveloperResponsibilitiesDesign, develop, and maintain API interfacesUnderstand and analyze user requirements to ensure effective API designWrite clean, readable and testable codeEnsure API functionality and reliability through regular testing and troubleshootingWork with other software developers to ensure compatibility and integration of...

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...

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...

Advance your career as a Senior Backend Developer focusing on CAD solutions, designing and enhancing REST APIs. Play a key role in ensuring system resilience through effective data handling and integrations. This Software Developer IV position requires deep expertise in backend development and API services. You will be responsible for building REST APIs,...

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...

A technology firm in Toronto is seeking a Senior Software Developer to design and implement REST APIs in a complex enterprise environment. The ideal candidate has over 5 years of experience in API development and integration, strong skills in platforms like IBM API Connect and a solid understanding of microservices. This role requires excellent...

Source Code in Downtown Toronto is seeking a Sr. Software Developer - API to design, build and maintain API-driven systems. You will translate functional specs into robust, tested APIs and contribute to the architecture of scalable microservices on Azure.The role requires 8+ years of API development experience, strong REST API design, and hands-on knowledge...

A leading software development company in Toronto is seeking a Senior Software Developer specializing in API development. The ideal candidate will have at least 4 years of experience in C# and 3 years in .NET Core or .NET 5+. Responsibilities include translating technical specifications into applications and collaborating across teams. This role requires...

Elevate your skills in technology at EQ as an Intern in Commercial Lending, focusing on AI integration and API development. This hybrid role will immerse you in creating intelligent banking solutions while you learn from experts in the field.Join EQ's innovative team as we reshape banking for Canadians using technology. You will work closely with the...

A tech company in Toronto is seeking an experienced API Developer for a hybrid role that requires working in the office two days a week. The successful candidate will utilize their expertise in API development with REST / JSON, Java, and Spring Boot, while ensuring robust security measures such as OAuth 2.0. Familiarity with API documentation and integration...

Role: API Developer Hybrid: 2 days in office API development using REST / JSON (and SOAP if applicable) Java / Spring Boot API Gateway experience (Azure/AWS API Gateway) API security: OAuth 2.0, JWT, SSO, API key management API documentation: Swagger / OpenAPI Integration experience with microservices and backend systems Experience with Postman, unit...

Toronto - Hybrid: 2 days a week in office We are looking for an experienced Backend API Developer to design, develop, and maintain scalable backend services and APIs for mobile applications built on React Native. The ideal candidate should have strong expertise in Node.js, RESTful APIs, cloud technologies, and integration with enterprise systems. Key...

Drive innovation as an API Developer with a focus on microservices at RQ09964/RQ09965. This one-year contract role demands expertise in building secure and efficient REST APIs for scalable applications. Seeking candidates with 8+ years of experience in API development, you will design RESTful APIs and oversee the architecture of decoupled microservices....

S M Software Solutions is seeking a Senior API Software Developer in Toronto to build scalable REST API platforms and AI-enabled applications using modern web technologies.About S M Software Solutions Inc.S M Software Solutions provides software development and IT consulting services for enterprise and public-sector technology projects.What you'll doDesign...

5+ years building and operating production REST APIs in Node.js & TypeScriptHands-on AWS serverless experience — Lambda, API Gateway, DynamoDB, S3, CloudWatch, IAM, SNS, SQS, Glue, ECS — built and run in production, not just in tutorialsStrong REST API design skills — resource modeling, HTTP semantics, versioning, idempotency, and OpenAPI/Swagger...

Role: API Developer (REST, Microservices, Cloud) Location: Toronto, ON - Hybrid Responsibilities Lead and contribute to the migration of existing Azure / PCF applications to Atlas , including analysis, refactoring, and deployment. Refactor backend services and UI components to ensure cloud‑native readiness , scalability, and performance. ...