senior java api developer jobs in Toronto

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  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Miratech1 Full-time

    We are looking for a Senior Java Developer with LLM expertise to lead the technical design, development and integration of core banking application systems for a major financial services client. This role bridges high-scale microservices architecture with GenAI. You will help the bank build scalable, resilient, API-driven ecosystems that embed LLMs,...


  • Toronto, Ontario, Canada Capgemini Full-time

    Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of...


  • Toronto, Ontario, Canada Miratech1 Full-time

    Lead Java microservices and LLM integration for core banking systems in a hybrid role, working two days weekly from downtown Toronto.As a Senior Java Developer, you will implement architect-designed solutions for a major financial services client. Your work spans Spring Boot, RESTful APIs, gRPC, Python, and agentic workflows. You will also help developers...


  • Toronto, Ontario, Canada otppb Full-time

    Build Java and Spring software across the lifecycle as a Senior Software Developer supporting Member Services Product Engineering. Work within an agile squad.This senior developer supports strategic Member Services initiatives from business requests through production implementation. You will collaborate with product owners, consumers, testers, and external...


  • Toronto, Ontario, Canada Lorven Technologies Inc. Full-time

    We are seeking an experienced Senior Java Developer / Technical Lead to design and deliver secure, scalable, high-performance banking and payment applications. The ideal candidate will have strong expertise in Java, Spring Boot, microservices, REST APIs, Kafka, database optimization, and cloud-native technologies, along with proven technical leadership...


  • Toronto, Ontario, Canada Capgemini Full-time

    Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of...


  • Toronto, Ontario, Canada TEKsystems Full-time

    Java and system design expertise define this hybrid Toronto contract for an expert-level developer supporting foreign exchange products and technology.TEKsystems seeks a developer with seven or more years of Java and technology experience. The work centers on core engineering, system design, Agile delivery, Java 8, and capital markets. Experience with...


  • Toronto, Ontario, Canada Softline Technology Inc. Full-time

    Design secure Java platforms onsite, spanning user interfaces, APIs, services, workflows, integrations, and data-access layers. Apply REST and microservices expertise.This senior full stack developer builds enterprise capabilities supporting multiple government programs. The work includes reusable platform services and connections for registries, permitting,...


  • Toronto, Ontario, Canada Maarut Full-time

    Lead Java development for complex applications, combining cloud deployment expertise with technical leadership across multidisciplinary development teams.This Senior Software Developer role guides technical direction while building enterprise or public-facing applications. You will develop interfaces, APIs, services, integrations, business logic, and...


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

    Senior Enterprise Java Developer and Lead We are looking for a Senior Java developer,on contract, for one of our major clients in Ontario. The work is remote. Senior Enterprise Java Developer and Lead The technical requirements for the Java Lead are the same as that of Java developer with the additional experience in managing a team of developers. ...


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

    Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a...


  • Toronto, ON, Canada S.I. Systems Ltd. Full-time €110,000 - €150,000 Contract

    Build modern enterprise applications as a Senior Full Stack Developer in Toronto, London, or Winnipeg, working hybrid three days weekly with Java and component-based development. This twelve-month role supports an insurance client within an Agile team. You will translate product and design requirements, develop reusable software components, and contribute...


  • Toronto, Ontario, Canada Brainhunter Systems Ltd Full-time

    Build CIAM services with Java and Spring Boot in a hybrid senior developer contract based downtown in Toronto. Apply identity expertise across enterprise platforms.This Senior Client Identity and Access Management Developer supports Scotia Bank’s CIAM Engineering function. The one-year contract focuses on hands-on engineering, configuration, and...


  • Toronto, ON, Canada Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision! Full-time $90,000 - $120,000 Contract

    Senior Java Angular Developer – API Integration Location: Toronto Work Style: Hybrid - 2 days a week in office Skills: Banking and Financial Technology: Core Java: Application Integration Architecture Experience Required: 6-8 years Job Description Act as the end‑to‑end technical owner for business banking initiatives Must have strong knowledge of the...


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

    Senior Java Developer (with LLM expertise) Full-time Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the...


  • Toronto, Ontario, Canada Cognizant Full-time

    About the RoleWe are seeking a highly skilled Senior Full Stack Developer (Angular & Java) to join our Digital Engineering team. In this role, you will design, develop, and support scalable enterprise applications while collaborating with cross-functional teams to deliver innovative technology solutions that drive business value.The ideal candidate will...


  • Toronto, Ontario, Canada Continental Technology Solutions Full-time

    A leading IT consulting firm in Toronto is seeking a seasoned Java Developer with over 8 years of experience in Java/J2EE, Rest services, and Spring. The ideal candidate will have a background in Banking and Financial Services and demonstrate strong problem-solving skills. Knowledge of Agile methodology is preferred. You'll work within a dedicated team to...


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

    Job Description Job Description Title: Senior Backend Java Developer Location: Toronto, ON M5H 1H1, CA Hybrid: 2-3 days in office a week Duration: 6 Months Pay Range: C$50 INC Languages Required: English & Spanish (Professional Fluency) We are seeking 8-12 years experienced highly skilled Senior Backend Java Developer with strong expertise in Java, Spring...


  • Toronto, Ontario, Canada Joblinxsapp Full-time

    Senior Software Developer – Java & Microsoft Azure Assignment Number: A2930470 Client: Government Services Integration Cluster (GSIC), Government of Ontario Ministry: Ministry of Public and Business Service Delivery and Procurement Location: 222 Jarvis Street, 5th Floor, Toronto, Ontario Work Arrangement: 100% Onsite – 5 days per week Contract Start...


  • Toronto, Ontario, Canada S.I. Systems Ltd. Full-time

    Duration: 12 Months Location: Toronto, London or Winnipeg (Hybrid, 3x/week) On-call:May require to be part of on call rotation Monday to Sunday Overview: Our insurance client is seeking a Senior Full Stack Developer to translate product and design requirements into modern, component-based user experiences. Working within an Agile team, this person will...