senior java backend architect jobs in Ottawa

415 senior java backend architect job listings in Canada. Find daily updated positions from leading job boards.


  • Ottawa, Canada HHHub.eu (Taupai, UAB) Full-time €110,000 - €160,000 Contract

    Build secure banking and payment backends as a Senior Java Engineer, using Spring Boot and distributed-system technologies in an international FinTech company. Our client is an established FinTech software provider with more than 25 years of experience. You will design, develop, test, deploy, and support Java backend services. The work covers REST APIs,...


  • Ottawa, ON, Canada OpenText Full-time $110,000 - $150,000 Contract

    Build secure backend services with C++ and Java at OpenText, working onsite in Ottawa or Richmond Hill, Ontario. French and English are required.As a Senior Backend Software Developer, you will evolve OpenText’s public, multitenant SaaS cloud offering. The platform serves healthcare, financial, and government organizations with high availability, security,...


  • Ottawa, ON, Canada Textlayer Full-time $215,000 - $250,000 Contract

    A leading AI infrastructure company in Ottawa, Canada, seeks an AI Architect to work on frontend and backend architecture for advanced AI systems. The ideal candidate has over 3 years of experience in full-stack development, specifically in Python and API development. Responsibilities include architecting services and implementing orchestration logic for AI...


  • Ottawa, ON, Canada Just Eat Takeaway.com Full-time €102,000 - €128,000 Contract

    Build scalable Java backend services remotely for Just Eat Takeaway.com from Alberta, Manitoba, or Ontario. Apply strong system design expertise. As a Senior Java Developer, you will support the Logistics Areas and Fees team. You will architect, develop, and operate distributed systems for delivery calculations. The work includes Java 21, REST APIs, message...


  • Ottawa, ON, Canada OpenText Full-time $98,000 - $147,000 Contract

    OpenText is seeking a Senior Backend Software Developer to join our cloud SaaS platform. The role focuses on building and evolving multi-tenant services in C++ and Java, with emphasis on security, performance, and scalable design.You will work in an Agile environment, collaborate across teams, and contribute to AI-powered features. Applicants must be fluent...


  • Ottawa, ON, Canada Veeva Systems Full-time $150,994 - $370,623 Contract

    Senior Software Engineer - Java Join to apply for the Senior Software Engineer - Java role at Veeva Systems. Veeva Systems, a pioneer in industry cloud and one of the fastest-growing enterprise SaaS companies, is on a mission to help life sciences companies bring therapies to patients faster. As a public benefit corporation, we balance the interests of...


  • Ottawa, ON, Canada Miratech Group Full-time €120,000 - €180,000 Contract

    Build enterprise-scale routing engines with Java and Spring Boot at Miratech, developing real-time interaction distribution for contact center operations. As a Senior Routing Engine Developer, you will create scalable backend services for voice and digital interactions. You will apply distributed systems, microservices, event-driven architecture, and...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Textlayer Full-time €215,000 - €250,000 Temporary

    A leading AI infrastructure company in Ottawa, Canada, seeks an AI Architect to work on frontend and backend architecture for advanced AI systems. The ideal candidate has over 3 years of experience in full-stack development, specifically in Python and API development. Responsibilities include architecting services and implementing orchestration logic for AI...


  • Ottawa, ON, Canada Akamai Full-time €120,000 - €217,000 Contract

    Architect high-throughput REST APIs with Python and Flask at Akamai, supporting resilient backend infrastructure for enterprise security platforms. As a Senior II Software Engineer, you will lead architecture, design, and implementation for high-performance backend systems. You will establish API standards, improve performance, and advance fault-tolerant...


  • Ottawa, Canada HHHub.eu (Taupai, UAB) Full-time €110,000 - €160,000 Contract

    About the Company Our client is an established FinTech software provider with more than 25 years of experience, developing banking technology for regulated financial institutions across international markets. The company builds secure and scalable platforms covering core banking, payments, financial integrations, and back-office operations. Its systems...


  • Ottawa, 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...


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

    Build enterprise-scale routing engines with Java and Spring Boot at Miratech, developing real-time interaction distribution for contact center operations. As a Senior Routing Engine Developer, you will create scalable backend services for voice and digital interactions. You will apply distributed systems, microservices, event-driven architecture, and...

  • Senior AEM Architect

    9 hours ago


    Ottawa, Ontario, Canada Accenture PLC Full-time

    We Are: Accenture Song accelerates growth and value for our clients through sustained customer relevance. Our capabilities span ideation to execution: growth, product and experience design; technology and experience platforms; creative, media and marketing strategy; and campaign, content and channel orchestration. With strong client relationships and deep...


  • Ottawa, ON, Canada Affirm Remote Full-time $110,000 - $150,000 Contract

    Elevate your career as a Senior Backend Software Engineer with Affirm, focusing on online storage solutions in a remote-first environment. Be part of a team that builds and scales large-scale database systems. Affirm is seeking a talented senior software engineer to enhance its Data and Storage Services team. This role involves working with relational and...


  • Ottawa, ON, Canada Miratech Full-time €110,000 - €150,000 Contract

    Miratech is seeking a Senior Full Stack Engineer to design, build, and support scalable cloud-native applications powering Workforce Management, CX, and operations. You will use Java and Spring Boot for backend services, React with TypeScript for front-end experiences, and Node.js for lightweight components. Experience with WFM, CX, or contact-center...


  • Ottawa, Ontario, Canada Amuse Full-time

    OverviewSenior Backend Developer, Content & Personalization (Remote, Canada) – AmuseJoin to apply for the Senior Backend Developer, Content & Personalization (Remote, Canada) role at Amuse.This range is provided by Amuse. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Base pay range: $120,000.00/yr -...


  • Ottawa, ON, Canada RELQ TECHNOLOGIES Full-time

    Job TitleJava Full Stack Engineer LocationCanada Remote Employment TypeContractual About The RoleWe are looking for a Java Full Stack Engineer to join our distributed agile team and contribute to the development of a multi-tenant cloud SaaS solution in the Human Resources domain. You will work on modernizing and building new features for modules such as...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Accenture PLC Full-time €99,450 - €209,900 Temporary

    We Are: Accenture Song accelerates growth and value for our clients through sustained customer relevance. Our capabilities span ideation to execution: growth, product and experience design; technology and experience platforms; creative, media and marketing strategy; and campaign, content and channel orchestration. With strong client relationships and deep...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Michael Page Full-time €140,000 - €145,000 Temporary

    Join to apply for the Senior Java Lead Engineer role at Michael Page 1 day ago Be among the first 25 applicants Join to apply for the Senior Java Lead Engineer role at Michael Page Get AI-powered advice on this job and more exclusive features. This range is provided by Michael Page. Your actual pay will be based on your skills and experience — talk...


  • Ottawa, ON, Canada Michael Page Full-time

    Join to apply for theSenior Java Lead Engineerrole atMichael Page 1 day ago Be among the first 25 applicants Join to apply for theSenior Java Lead Engineerrole atMichael Page Get AI-powered advice on this job and more exclusive features. This range is provided by Michael Page. Your actual pay will be based on your skills and experience — talk with your...