senior java api developer jobs in Toronto

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10,000 senior java api developer job listings in Canada. Find daily updated positions from leading job boards.

  • Senior Java Developer

    19 hours ago


    Toronto, ON, Canada Triunity Software Full-time €110,000 - €150,000 Contract

    Benefits: - Bonus based on performance - Health insurance - Training & development About the Role: Triunity Software is looking for a talented and driven Senior Java Developer to join our growing team in Toronto, ON. This is an exciting opportunity to work on cutting-edge software solutions, collaborate with skilled engineers, and make a real impact on...

  • Senior Java Developer

    7 hours ago


    Toronto, Ontario, Canada Konrad Group Full-time

    Who We AreKonrad is an AI-driven digital consultancy and product-innovation firm providing AI, strategy, design, and technology services to the world’s most ambitious businesses and brands.We empower industry-leading brands to navigate change, strategize, and build extraordinary custom experiences. In a landscape defined by human and machine collaboration,...

  • Senior Java Developer

    9 hours ago


    Toronto, Ontario, Canada Localcoin Full-time

    Localcoin, founded in 2017 with headquarters in Toronto, is on a mission to simplify the process and experience of buying or selling digital currencies globally. We envision bringing digital currency to the mainstream financial market through partnerships with leading corporate and franchised retail spaces. With terminals across Canada, Poland and the APAC...

  • Senior Java Developer

    9 hours ago


    Toronto, Ontario, Canada Altis Technology Full-time

    Senior Java / Spring Boot DeveloperLocation: Greater Toronto Area (GTA), Hybrid, primarily remote with on-site presence as requiredLanguage: English, strong written and verbal communication skillsDuration: 2-month contract, full-timeCompensation: $100$105/hour (Independent Contractor)About the OpportunityAre you a seasoned Java Developer who enjoys solving...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada NTT America, Inc. Full-time

    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,...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Leap Tools Full-time

    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...

  • API Developer | Java

    21 hours ago


    Toronto, Ontario, Canada Astra-North Infoteck Inc. Full-time

    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...

  • API Developer

    9 hours ago


    Toronto, Ontario, Canada Astra-North Infoteck Inc. Full-time

    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, Ontario, Canada Compunnel Inc. Full-time

    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, and...


  • Toronto, Ontario, Canada VySystems Full-time

    A leading tech company in Toronto is seeking a Java Backend Developer with 8+ years of experience. The role focuses on designing Java/Java EE solutions, developing Microservices and REST APIs, and utilizing technologies like Spring and SQL. Ideal candidates will have a solid understanding of integration patterns, Linux commands, and DevOps technologies. This...


  • Toronto, Ontario, Canada NTT America, Inc. Full-time

    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,...

  • Java API Developer

    6 days ago


    Toronto, Ontario, Canada BMO Full-time

    Application Deadline:10/30/2026Address:33 Dundas Street WestJob Family Group:TechnologyHybrid role (2 days/week in office). Out of province candidates should consider relocating. This role is not eligible for Virtual/Remote work.Drives the overall software development lifecycle including working across functional teams to transform requirements into...


  • Toronto, Ontario, Canada Leap Tools Full-time

    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...


  • Toronto, Ontario, Canada Broadridge Full-time

    Broadridge in Canada is seeking a skilled Java developer to design, develop, and support Java-based applications and APIs that process business transactions and enable reliable data exchange. You will work with Kafka messaging, monitor performance, troubleshoot issues, and collaborate with business and technology teams in a hybrid environment.The role...


  • Toronto, Ontario, Canada Tata Consultancy Services Full-time

    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...


  • Toronto, Ontario, Canada The Code Crackers Full-time

    The Code Crackers in Toronto, Canada is seeking an experienced Oracle/Java software developer to design, develop, test and maintain enterprise applications. You will translate technical specifications into working software, write code, and participate in unit testing while collaborating across IT teams.The role requires strong knowledge of Java development,...


  • Toronto, Ontario, Canada Teckhorizon Inc Full-time

    Job Description Job DescriptionOur client requires a Senior Full Stack Software Developer to support enhancements to the Enhanced Rate Reduction Information System Application (ERRISA). The consultant will design and implement application enhancements, develop detailed programming specifications, write and maintain code, conduct unit testing, and...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Capco Full-time

    Modernize business-critical Java platforms at Capco through deep back-end engineering, legacy refactoring, and modern cloud deployment environments. This hands-on role supports financial markets technology modernization. Capco seeks a Senior Java Developer with 8+ years of Java experience for a major technology modernization initiative. You will work with...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Randstad Full-time

    Build scalable enterprise applications onsite in Toronto using Java, Spring Boot, React, and Angular across full-stack delivery. Lead secure APIs and responsive interfaces. This senior contract role spans application architecture, technical delivery, and full-lifecycle software development. You will connect business requirements with backend architectures,...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Randstad Canada Full-time

    Build secure Java microservices and REST APIs in a hybrid Brampton assignment focused on cloud-native architecture and systems integration. Randstad Canada seeks an experienced, hands-on Senior Java Developer for a six-month enterprise contract. You will develop resilient backend services, batch workflows, and distributed data pipelines using Java, Spring...