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...

Build OnBase integrations remotely across Canada using Unity API, REST/SOAP services, and C#/.NET application development. Support enterprise document workflows. NTT DATA seeks an OnBase API Developer with eight-plus years of Hyland OnBase development and integration experience. You will develop APIs, configure workflows, and connect OnBase with ERP, CRM,...

Build scalable backend services and APIs for Leap Tools’ business-critical ERP applications. Work remotely across technologies while owning complex technical initiatives. As a Senior Software Developer, you will develop reliable services, data models, and user-facing functionality for flooring retailers’ daily operations. You will collaborate with...

Build OnBase integrations remotely across Canada using Unity API, REST/SOAP services, and C#/.NET application development. Support enterprise document workflows.NTT DATA seeks an OnBase API Developer with eight-plus years of Hyland OnBase development and integration experience. You will develop APIs, configure workflows, and connect OnBase with ERP, CRM,...

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...

Advance your career in the insurance industry as a Guidewire ClaimCenter API Developer. This hybrid role in Toronto or Montreal focuses on Java development and API integration. We are looking for an experienced Guidewire ClaimCenter Integration Developer to enhance our client's integration solutions. Candidates should have a balanced skill set, with 50%...

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...

Build OSOR application enhancements as a Senior .NET API Developer in a provisionally hybrid assignment, using ASP.NET and Microsoft development tools.This senior position requires 10+ years of .NET experience. You will support a new OSOR-NSOR data exchange interface and related application work. The assignment covers design, development, testing,...

We are looking for an experienced API Developer with 4+ years of experience building secure and scalable REST APIs using Node.js and TypeScript.Key Skills:AWS Cognito & Token-Based AuthenticationSecure On-Prem to AWS IntegrationsCI/CD, Automated Testing, Monitoring & Production SupportAWS CDK / CloudFormationExposure to AI coding tools such as GitHub...

Build scalable backend services and APIs for Leap Tools’ business-critical ERP applications. Work remotely across technologies while owning complex technical initiatives.As a Senior Software Developer, you will develop reliable services, data models, and user-facing functionality for flooring retailers’ daily operations. You will collaborate with Product...

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:...

Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our...

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...

Work on Java REST API development, HL7/FHIR integration, and tested software applications from the 5700 Yonge St office weekly.This Junior Software Developer assignment supports full stack delivery across Angular, Spring Boot, Java, databases, and web services. You will design, implement, troubleshoot, and document applications while collaborating with IT...

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,...

Focus on secure API architecture, authentication, and AWS connectivity while developing REST services with Node.js and TypeScript.This experienced API Developer position centers on secure and scalable REST API development. You will build with Node.js and TypeScript, connect on-premises environments to AWS securely, and support AWS Cognito authentication. The...

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...

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...

We are seeking an experienced Node.Js API Developer (AWS) to support a major Canadian financial institution’s Digital Core modernization initiative. The successful candidate will join an API Modernization Pod focused on developing and enhancing secure, scalable B2C APIs. The project includes implementing updated API security protocols, particularly...

We are seeking an experienced Node.js API Developer (AWS) to support a major Canadian financial institution’s Digital Core modernization initiative.The successful candidate will join an API Modernization Pod focused on developing and enhancing secure, scalable B2C APIs. The project includes implementing updated API security protocols, particularly...