api developer jobs in Toronto

The client is seeking an experienced Senior Software Developer API to design, develop, implement, and maintain enterprise-level APIs, web applications, and system integrations. The ideal candidate will have extensive experience in Java development, RESTful APIs, enterprise integration platforms, API security, and relational databases, with the ability to...

A leading recruitment agency is seeking an experienced Integration Developer for a hybrid contract in Toronto. This role involves integrating third-party cyber risk assessment tools, managing API integrations, and ensuring secure coding practices. The ideal candidate has over 10 years of experience in integration development and expertise in Java, RESTful...

isgSearch is seeking an experienced Software Developer to design, develop, test, and maintain enterprise applications using Microsoft .NET technologies, SQL Server, and Microsoft Azure. This 100% onsite role in Toronto requires delivering robust software solutions aligned with business needs. You will design and optimize databases, develop REST APIs and...

We are seeking a skilled Java Fullstack Developer to design and develop scalable web applications. The ideal candidate will have expertise in both front-end and back-end technologies, ensuring seamless integration and high performance. This role involves collaborating with cross-functional teams, participating in all phases of the development lifecycle,...

A leading B2B SaaS company is seeking an experienced AI / Machine Learning Developer to work on innovative AI models and systems. The candidate will train and deploy large language models and related machine learning systems, contributing to impactful automation features. This is a remote role available to applicants across Canada, with strong preference...

A leading B2B SaaS company is seeking an experienced AI / Machine Learning Developer to work on innovative AI models and systems. The candidate will train and deploy large language models and related machine learning systems, contributing to impactful automation features. This is a remote role available to applicants across Canada, with strong preference for...

We are seeking a versatile Application Support & Development Engineer with strong hands‐on experience in .NET, SQL Server, Web API, and Microsoft Azure. This is not a traditional development‐only role. The position combines application development, production support, operational maintenance, ticket‐driven work, and technology lifecycle management...

Job Overview The Government Services Integration Cluster is seeking an experienced Senior Software Developer – API to design, develop, implement, and support enterprise-level API solutions and integrations. The successful candidate will be responsible for developing RESTful APIs, integrating enterprise applications, implementing API security...

We are seeking a versatile Application Support & Development Engineer with strong hands‐on experience in .NET, SQL Server, Web API, and Microsoft Azure. This is not a traditional development‐only role. The position combines application development, production support, operational maintenance, ticket‐driven work, and technology lifecycle management...

We’re building a relationship-oriented bank for the modern world. We need talented, passionate professionals who are dedicated to doing what’s right for our clients. At CIBC, we embrace your strengths and your ambitions, so you are empowered at work. Our team members have what they need to make a meaningful impact and are truly valued for who they are...

**Hiring: Senior Siebel CRM Developer – Siebel Public Sector | Oracle | REST APIs** We are seeking a highly experienced **Senior Siebel CRM Developer** to design, develop, configure, integrate, and support complex Siebel Public Sector solutions. **Key Requirements:** • 10+ years of hands-on experience with **Siebel Public Sector 8.x** and complex CRM...

Overview API Management Platform team builds end to end API Management Platform for Restful, GraphQL and Async APIs. Platform provides following key capabilities • Provides Starter code, GenAI based tooling and SDKs for API Producers to produce world class APIs and API consumers to discover and consume these APIs with ease. • API Metering and API...

🚀 Hiring: API Developer (Node.js/AWS) | GTA, Ontario 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: ✅ Node.js & TypeScript API Development ✅ AWS Lambda, API Gateway, DynamoDB, S3, SQS/SNS, ECS ✅ OpenAPI/Swagger, API Security, Versioning &...

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...

MaintainX is a leading mobile-first work execution platform for industrial and frontline teams. More than 15,000 customers, including McDonalds, Michaels, Cintas, Redimix, and U.S. LBM, use MaintainX to cut unplanned downtime and run better operations, across 16 million managed assets and 92 million completed work orders.In August 2026 MaintainX became part...

Sr. Software Developer (React.js, Typescript, Node.js, Next.js, RESTful APIs, Jamstack Architecture) - RQ09503 Downtown, Toronto Hybrid: 3 Days onsite / 2 days remote Contract (9 months, possible extension)2 Vacancies Must Have: 8+ years of experience as a Software Developer Experience with React.js framework and TypescriptExperience with Node.js...

If you do not have Front-Office / Buyside / Investment Software trading experience. Please do not apply. What we are looking forAs a Principal Consultant you will be assessing client needs and utilizing technical expertise to identify solutions which are in alignment with CRD’s current design.  Act as subject-matter expert in the analysis, design,...

About the Role We are looking for a motivated and detail-oriented Python developer with 6-8+ years of experience to join our development team. The ideal candidate will contribute to designing, developing and optimizing business process automation solutions and data driven solutions, leveraging cutting-edge AI technologies and modern containerization...

Location: Toronto or Montreal (hybrid). A leading North American financial institution is seeking skilled Developers to design, build, test, and support technology solutions used across the organization. Developers will work in collaborative Agile teams and contribute to the full software development lifecycle, from requirements analysis...