Full Stack Java Developer jobs in Toronto – Browse 611 openings on RoboApply Jobs

Full Stack Java Developer jobs in Toronto

Open roles matching “Full Stack Java Developer” with location signals for Toronto. 611 active listings on RoboApply Jobs.

611 jobs found

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companyKonrad Group logo
Full-time|CA$90K/yr - CA$125K/yr|On-site|Toronto

About Us At Konrad Group, we are a pioneering digital consultancy, committed to addressing intricate business challenges for our diverse global clientele. Our team thrives in a culture of innovation, dedicated to developing superior digital products that serve millions of consumers worldwide. We seek exceptionally intelligent, analytical, and diligent individuals who are passionate about lifelong learning. Position Overview As a Full Stack Java Developer, you will engage in the development of web applications using Java and Spring Boot. Collaborating with our software development team, you will contribute to the creation and delivery of both consumer-facing and enterprise applications. This opportunity is perfect for driven developers who are confident in their technical skills and eager to join a highly skilled team at Konrad. Your Responsibilities Develop maintainable, testable, and high-performance software in partnership with our elite team. Engage in code reviews and conduct rigorous testing to guarantee the delivery of high-quality software. Investigate new technologies and tools, sharing insights with the team. Communicate effectively and clearly with all team members.

Jan 13, 2026
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companyKonrad Group logo
Full-time|CA$120K/yr - CA$145K/yr|On-site|Toronto

About UsAt Konrad Group, we are a pioneering digital consultancy committed to addressing intricate business challenges for our diverse global clientele. Our innovative culture fosters the development of exceptional digital products that serve millions of users worldwide. We pride ourselves on hiring intelligent, analytical, and dedicated individuals who are passionate about continuous learning.Position OverviewWe are seeking a talented Full Stack Java Developer who will play a crucial role in the development of web applications using Java and Spring Boot. As part of our software development team, you will contribute to the creation and deployment of both consumer and enterprise applications. This position is perfect for driven developers who possess strong technical skills and desire to work alongside a highly talented development team at Konrad.Key ResponsibilitiesCollaborate with our exceptional team to write maintainable, testable, and efficient software.Engage in code reviews and conduct thorough testing to ensure the delivery of high-quality software.Explore new technologies and tools, sharing insights with the team.Communicate effectively with all team members.

Jan 13, 2026
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companyKonrad Group logo
Full-time|CA$120K/yr - CA$145K/yr|On-site|Toronto

About Us At Konrad Group, we pride ourselves on being a leading digital consultancy dedicated to delivering innovative and effective solutions for complex business challenges faced by our global clientele. Our dynamic work culture fosters creativity and collaboration, enabling our talented team to create best-in-class digital products that reach hundreds of millions of users worldwide. We are always on the lookout for exceptionally talented, analytical, and driven individuals who are passionate about continuous learning. Role Overview As a Senior Full Stack Developer, you will play a crucial role in our software development team, focusing on developing web applications. Your expertise will contribute to the creation and deployment of both consumer and enterprise applications. This position is perfect for ambitious developers who are confident in their technical skills and eager to join a highly skilled team at Konrad Group. Key Responsibilities Collaborate with our top-tier team to produce maintainable, testable, and high-performance software. Engage in code reviews and conduct thorough testing to ensure the delivery of high-quality software. Explore and evaluate new technologies and tools, sharing insights with the team. Communicate effectively with all team members to facilitate collaboration and knowledge sharing. Required Qualifications Over 5 years of experience in building and deploying modern, production-grade web applications in a team setting. Strong proficiency in JavaScript, with hands-on experience using tools and frameworks such as TypeScript, Node.js, and Next.js. Experience with front-end JavaScript frameworks like React, Angular, or similar. In-depth understanding of the components that constitute a modern web application (APIs, routing, data storage, design patterns, optimization, security). Solid foundational knowledge of core web principles (HTTP, the DOM, SSL, web servers). Excellent interpersonal skills, as teamwork and communication are essential. A proactive mindset with a commitment to delivering exceptional work. A passion for enhancing software development workflows and processes. Preferred Qualifications Experience with custom development using Next.js, Gatsby, Remix.js, or similar technologies. Familiarity with content management systems (e.g., WordPress, AEM, Sitefinity). Experience in cloud environments (e.g., AWS, Google Cloud, Azure). Knowledge of GraphQL, ElasticSearch, Serverless technologies, or Next.js.

Mar 3, 2026
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companyRange Group logo
Full-time|CA$115K/yr - CA$125K/yr|Hybrid|Canada

Range Group supports professional travel advisors throughout North America, handling over $4.5 billion in travel sales annually. The company provides advisors with advanced technology and 24/7 support. Through the Range Foundation, 10% of group profits go toward scholarships, education programs, cultural infrastructure, and crisis relief projects. Location and Work Arrangement This Senior Full Stack Software Developer position is open to candidates across Canada. Those within commuting distance of the Toronto office (2 Queen St. E) follow a hybrid schedule, working onsite two days each week. Fully remote work is available for candidates living farther away. Role Overview The role joins TripArc's ADX platform team, focusing on the core booking tool used daily by thousands of travel advisors. While other teams develop the next generation of the platform, this position is dedicated to ongoing improvements of the current system, enhancing speed, reliability, and user experience. This is a full-stack role with a strong emphasis on backend development. Project focus shifts with each sprint: one cycle may streamline payment workflows, while another might enhance 24/7 service features or boost performance during busy periods. The position offers ongoing technical challenges and opportunities to make a direct impact. Key Responsibilities Lead investigations into technical issues and recommend practical solutions Work with Product and QA teams to clarify project scope and deliverables Implement improvements that affect thousands of travel advisors in real time Balance backend development with occasional frontend tasks as needed How We Build Developers at Range Group are encouraged to use AI coding tools (such as GitHub Copilot, Claude, or Cursor) in their workflow. This approach is standard practice, intended to speed up development while maintaining quality through code review and testing. Success in this environment depends on using AI assistance thoughtfully, without compromising code quality.

Apr 21, 2026
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companyKlick Group logo
Full-time|On-site|Toronto

We are seeking a talented Senior Full-Stack Developer who is passionate about creating scalable applications and tools that empower our internal teams. This position emphasizes the integration of AI capabilities into production systems, ensuring that our solutions are not only innovative but also reliable. You will play a key role throughout the development lifecycle—from architecture and implementation to deployment and optimization—while collaborating with cross-functional partners to deliver exceptional solutions.Take the lead on full-stack development initiatives, focusing on AI-enhanced functionality from the design phase to deployment.Work collaboratively across teams to discover opportunities for embedding AI-driven solutions within existing systems and workflows.Design, develop, and maintain both front-end and back-end components, ensuring high standards of code quality, scalability, and performance for new builds and existing applications.Participate in code reviews, contribute to architectural discussions, and uphold shared engineering standards.Enhance and develop data integrations, APIs, and tools to streamline and automate processes.

Mar 10, 2026
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companyLightspeed Commerce Inc. logo
Full-time|On-site|Toronto, Ontario, Canada

The Invoicing team at Lightspeed Commerce Inc. forms part of the Financial Services division. This group designs and maintains tools that help with both sales and pre-sales activities, as well as managing customer accounts receivable. Their work supports reliable financial processes for clients and contributes to business growth. Role overview The Senior Full Stack Developer (Go & React) will work on Lightspeed’s core financial products. Responsibilities include developing and maintaining important features, updating and improving the codebase, adding new capabilities, resolving bugs, and contributing to architectural improvements. The team values practical technical skills and a collaborative mindset for evolving both tools and processes. This position also involves supporting production operations, including participation in on-call rotations and handling related operational tasks as required. Requirements Must be currently residing in Canada. Lightspeed will only consider applicants located within Canada for this role.

Apr 21, 2026
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companyLoopio logo
Full-time|On-site|Toronto, ON Hub

Elevate Your Career with Loopio! Loopio is on the lookout for a driven and inquisitive Full Stack Software Developer to become a vital part of our expanding feature development teams. Collaborating with a dynamic group of Engineers, Product Managers, and Designers, you will play a key role in delivering an exceptional product to our users. Our team thrives on collaboration, emphasizing mutual support and teamwork in everything we do.Note: This position is currently open within our team.Your ResponsibilitiesWork closely with Product Managers and Designers in an agile setting to transform features into reality, refining them based on user feedback.Leverage your full stack development skills to assist the team across both frontend and backend tasks.Identify, troubleshoot, and resolve software defects through manual testing and automated tests to ensure consistent, high-quality releases.Engage in all Scrum rituals, including planning, backlog grooming, sprint reviews, retrospectives, and daily stand-ups.Support the transition of our application to a service-oriented architecture.Proactively address bugs with a focus on delivering quality software.Contribute to technical estimations and project planning for development tasks.Create and maintain technical documentation for features and system components.

Apr 13, 2026
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companyCentah logo
Full-time|CA$140K/yr - CA$150K/yr|On-site|Toronto, Ontario, Canada

About Us:Centah, a proud member of Financeit, is a leading SaaS provider dedicated to empowering home improvement businesses. Our innovative platform streamlines lead management, routing, and conversion, acting as the backbone of our clients' operations.Our Journey: We are transitioning from creating tailored solutions for a select group of large clients to launching a scalable SaaS platform for the broader market. This strategic shift is not only intentional but also fully funded, with a robust roadmap extending to 2028. This is a unique opportunity to influence the future of our product, rather than just maintaining an existing one.The environment at Centah is hands-on and impactful, offering significant ownership and visibility throughout the organization. You will collaborate closely with various teams, contribute to vital business decisions, and witness the tangible results of your efforts.We seek passionate individuals eager to contribute to our growth and shape the next chapter of Centah.Role Overview:In this position, you will navigate a complex ecosystem, managing the ingestion, transformation, and routing of data among partners, internal workflows, and downstream systems. Your work will focus heavily on integrations, including APIs and third-party systems, ensuring they operate seamlessly even in unpredictable environments.Our technology stack includes Ruby on Rails, Ember.js, and PostgreSQL—mature tools that must maintain stability, security, and performance as we expand.As we invest in scaling our system and supporting new go-to-market strategies, you will have the opportunity to shape the product's evolution rather than simply maintaining it.We are looking for a seasoned engineer excited to take ownership of challenges from start to finish. You should care about data consistency, understand potential failure points, and write code that remains clear and maintainable over time.You will collaborate with product-focused engineers, raise the quality bar, and help evolve our platform in line with our growing domain. If you thrive in an environment where ownership, clear thinking, and building resilient systems are paramount, we want to hear from you.Your Responsibilities:Manage features from initial design through to production and iterative improvements (API, domain logic, background jobs, and UI).Create clean, testable, and maintainable code with well-defined separation of concerns.Make architectural choices to enhance reliability, scalability, and clarity of the system.Deliver new features, resolve defects, and enhance existing systems rather than just addressing superficial issues.Collaborate closely with Developers, Product, Design, and stakeholders to develop comprehensive solutions.Proactively identify risks, edge cases, and trade-offs, driving decisions forward.Mentor junior engineers on architecture, ownership, and code excellence.Contribute to team processes to improve our delivery capabilities and overall efficiency.

Mar 29, 2026
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companyKlick Group logo
Full-time|On-site|Toronto

Join our dynamic team as a Senior Full-Stack Developer, where you will be instrumental in crafting scalable applications and tools that bolster our internal teams. This role emphasizes the integration of AI capabilities into our production systems, guiding projects through all phases of the development lifecycle—architecture, implementation, deployment, and optimization. As a vital member of our multifaceted team, you'll collaborate closely with various departments to deliver high-quality, reliable solutions. This position is perfect for a technology enthusiast who thrives on navigating the evolving landscape of AI technologies in a practical and innovative manner.Lead full-stack development initiatives from conception to deployment, with a strong focus on AI-enhanced functionalities.Work collaboratively with cross-functional teams to identify and integrate AI-driven solutions into existing systems and processes.Design, develop, and maintain both front-end and back-end components, ensuring code quality, scalability, and performance for new developments and existing applications.Participate in code reviews, contribute to architectural decisions, and uphold shared engineering standards.Enhance data integrations, APIs, and tools to streamline and automate workflows.

Feb 20, 2026
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companyKonrad Group logo
Full-time|CA$90K/yr - CA$125K/yr|On-site|Toronto

Who We Are Konrad Group is a leading digital consultancy dedicated to tackling intricate business challenges for our global clientele. We pride ourselves on delivering innovative and forward-thinking solutions. Our employees thrive in a culture of creativity and collaboration, crafting top-tier digital products that serve millions of users worldwide. We seek intelligent, analytical, and dedicated individuals who are committed to continuous learning. About The Role As a Full Stack Developer, you will engage in the development of web applications, collaborating closely with our software development team. Your responsibilities will include assisting in the design and development of both consumer and enterprise-level applications. This position is perfect for ambitious developers who are confident in their technical skills and eager to contribute to a highly skilled team at Konrad. What You'll Do Develop maintainable, testable, and efficient software alongside our exceptional team. Engage in code reviews and conduct thorough testing to ensure the delivery of high-quality software. Explore new technologies and tools, sharing insights with the team. Communicate effectively with all team members to foster a collaborative environment.

Jan 13, 2026
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companyLightspeed Commerce Inc. logo
Full-time|On-site|Toronto, Ontario, Canada

Hello and welcome! Are you on the lookout for an exciting new challenge or just exploring your options? Either way, you’ve come to the right place! Join our dynamic team at Lightspeed. The Financial Automation team at Lightspeed is dedicated to enhancing merchant operations by transforming cumbersome manual processes into intelligent, AI-driven automated systems. We connect complex data with actionable insights, empowering our users to scale their businesses without the need for additional staff. In your role as a Senior Full Stack Software Developer, you will play a crucial part in the development and maintenance of essential features in our financial products. Your focus will be on frontend development, constituting approximately 70% of your responsibilities, while the remaining 30% will involve backend development. Your contributions will enhance the overall codebase through new feature development, bug resolution, user experience improvements, and support for related tasks. We expect you to bring strong technical know-how, assist the team in achieving its objectives, refine team processes and tools, and actively participate in various production operations, including on-call duties. Note: We are currently accepting applications from candidates located in Canada only.

Mar 9, 2026
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companyAmple Insight Inc. logo
Full-time|Remote|Toronto

Ample Insight is seeking a motivated Junior to Intermediate Full Stack Developer who is enthusiastic about technology and adept at applying it to solve real-world engineering challenges. In this role, you will contribute to the launch and scaling of innovative products, showcasing your critical thinking and problem-solving abilities.Join our team at Ample Insight where you will collaborate with top-tier engineers on significant engineering challenges within a small, dynamic team. This position offers a unique chance for personal impact and career growth.Note: This is a remote position, but candidates must reside within Canada, ideally in the Greater Toronto Area.

Feb 12, 2026
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companyRange Group logo
Full-time|CA$115K/yr - CA$125K/yr|Hybrid|Canada

About Range Group Range Group supports professional travel advisors with technology and 24/7 support. The company manages $4.5 billion in annual travel sales and believes travel advisors make every trip better. Range Group also dedicates 10% of group profits to social impact through the Range Foundation, funding exploration, education, cultural projects, and crisis support worldwide. Location and Work Arrangement This role is based in Canada. For those near Toronto, the position is hybrid with two days each week at the office (2 Queen St. E). Candidates outside commuting distance may work from home. Role Overview The Senior Software Developer (Backend or Full-stack) joins a team focused on TripArc's ADX platform. This booking tool supports thousands of travel advisors across North America. While another team builds the next-generation platform, this pod keeps existing features evolving, making them faster, more reliable, and better aligned with user needs. This position suits a senior developer who enjoys backend challenges. Work changes from sprint to sprint: one cycle might refine payment flows, another could improve always-on service, and the next might focus on optimizing performance under heavy usage. The scope is broad, and priorities shift as needs arise. What You Will Do Enhance and maintain features on the ADX platform used daily by travel advisors Investigate issues, propose solutions, and scope tasks with Product and QA teams Deliver code that goes directly into production Work without waiting for detailed specifications, take initiative to solve problems See the direct impact of your work in how advisors use the platform How the Team Works Developers at Range Group use AI coding tools such as GitHub Copilot, Claude, or Cursor as a regular part of their workflow. These tools help speed up development and improve code quality, alongside thorough code review and testing. Experience with AI-assisted development is important for success in this role. Who Should Apply Senior developers with strong backend or full-stack experience Those comfortable with changing priorities and varied technical challenges People who work well with minimal direction and enjoy collaborating across teams Developers who have mastered AI-assisted coding tools

Apr 13, 2026
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companyMaintainX logo
Full-time|On-site|Montréal, Toronto, Vancouver, San Francisco, New York

MaintainX builds a mobile-first workflow management platform for industrial and frontline teams. Our IoT-enabled, cloud-based product supports maintenance, safety, and operations across equipment and facilities. Over 13,000 organizations, including Duracell, Shell, McDonald's, Cintas, and others, use MaintainX to streamline work execution in manufacturing. Following a recent $150 million Series D, our total funding stands at $254 million, with a company valuation of $2.5 billion. Role Overview MaintainX is hiring Senior and above Full-Stack Developers for the Connected Data team. This group focuses on integrating clients' operational data into MaintainX, building advanced integrations, managing sensors, and developing APIs. The team handles data ingestion, normalization, and presentation, supporting automation and asset intelligence features. Key systems include: Connectors (Ignition, Kepware, MQTT/Sparkplug B) On-Premise Agent Automation and Alerting engine Connected Data operates in squads and works closely with major enterprise clients to digitize equipment data. What You Will Do Improve our integrations platform: Design, build, and maintain connectors and data pipelines to import customer data from industrial systems such as Ignition, Kepware, MQTT brokers, OPC UA servers, SCADA, and historians. Build IoT and sensor experiences: Develop backend systems for ingesting, transforming, and storing high-volume sensor telemetry. Create frontend interfaces for monitoring device health, managing fleets, and ensuring data accuracy. Support real-time data services: Help ensure the reliability, performance, and observability of the team's core services that process real-time data at scale. Locations Positions available in Montréal, Toronto, Vancouver, San Francisco, and New York.

Apr 17, 2026
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companyStackAdapt logo
Full-time|On-site|Calgary, Alberta, Canada; Canada; Toronto; Vancouver

Role overview The Full Stack Engineer, Integrations at StackAdapt focuses on building and enhancing integration solutions that enable smooth data exchange between platforms. This role combines backend and frontend development to connect systems and improve workflows. What you will do Develop and maintain integration solutions to support reliable data flow across multiple platforms. Collaborate with cross-functional teams to design, implement, and improve full-stack applications. Contribute to technical projects that drive business results by delivering new features and refining existing systems. Location This position is open to candidates based in Calgary, Toronto, Vancouver, or elsewhere in Canada.

Apr 22, 2026
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companyAffinity logo
Full-time|On-site|Toronto, Ontario

Join Affinity as a Full-Stack Engineer II and be a key player in developing innovative software solutions that drive our business forward. In this role, you will collaborate with cross-functional teams to design, implement, and maintain robust applications. You will leverage your expertise in both front-end and back-end technologies to enhance user experiences and optimize system performance.

Apr 9, 2026
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companyExtreme Networks logo
Full-time|Hybrid|Toronto, Canada

Join our innovative team at Extreme Networks as a Senior Full Stack Developer specializing in backend technologies such as Java and Python, along with microservices architecture. We are looking for a talented individual who is proficient in modern UI frameworks like Angular and React to contribute to our agile development team.In this pivotal role, you will be tasked with creating robust, scalable, and user-centric end-to-end solutions for Generative AI applications, integrating advanced backend services with seamless front-end interfaces.

Sep 23, 2025
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companyExtreme Networks, Inc. logo
Full-time|Hybrid|Toronto, Canada

Join our team as a Principal Full Stack Developer, where you will leverage your extensive experience in backend technologies such as Java, Python, and microservices alongside modern UI frameworks like Angular and React. This role is crucial for crafting robust, scalable, and user-centric end-to-end solutions for Generative AI applications, merging state-of-the-art backend services with engaging front-end experiences.

Jan 28, 2026
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companyFeathery logo
Full-time|On-site|Toronto

Join Feathery as a Full Stack EngineerAt Feathery, we revolutionize data intake workflows for insurance and wealth management sectors. Top industry players depend on us to streamline critical operations such as underwriting, client onboarding, and automated account openings.With our rapid revenue growth and increasing enterprise demands, we're expanding our engineering team to tackle more complex, data-intensive workflows across our innovative platform.Your RoleAs we grow, the intricacies of our backend systems and the sophistication of our frontend experiences are evolving. We are seeking a Full Stack Engineer to develop and scale our core product capabilities from end to end. This position is perfect for someone passionate about owning features across the entire stack—from API design and backend development to creating intuitive, high-performance user interfaces.You will partner closely with product management, design, and engineering teams to deliver impactful features and influence the overall architecture of our platform.Key ResponsibilitiesEnd-to-End Product DevelopmentDesign and implement features across both frontend and backend systems.Create APIs and services that drive essential product functionality.Develop intuitive, responsive, and high-performance user interfaces.Manage features from inception to production.Backend Systems & InfrastructureBuild and scale backend services for workflow automation and data processing.Develop asynchronous pipelines and distributed systems for managing large data volumes.Utilize AWS services and messaging systems (e.g., SQS) to ensure scalable infrastructure.Maintain reliability, performance, and observability across systems.Frontend Experience & PerformanceImplement UI/UX designs that enhance user experience.Optimize front-end performance to ensure quick and smooth user interactions.

Mar 31, 2026
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companycitylitics logo
Full-time|Hybrid|Toronto, Ontario, Canada

At Citylitics, we provide cutting-edge predictive intelligence that informs where, how, and why infrastructure investments will be made across North America. Our focus on infrastructure encompasses essential services such as water, transportation, transit, roads and highways, broadband, and power systems. This multi-trillion-dollar market represents a significant megatrend that will continue for over 20 years in North America.We transform vast amounts of data from over 40,000 cities, utilities, and public agencies into real-time market signals and invaluable sales intelligence. Our platform empowers leading infrastructure vendors, engineering firms, and construction companies to identify and strategically position themselves for major infrastructure opportunities well in advance, enabling them to cultivate relationships, prioritize projects, and influence project scopes before they reach formal procurement stages.Utilizing a sophisticated network of AI agents, finely-tuned models, and our proprietary infrastructure signals graph, combined with daily human-in-the-loop quality assurance processes, we deliver highly nuanced and reliable sales intelligence. Our platform seamlessly integrates with CRMs, ERPs, and data lakes, embedding actionable insights directly into sales workflows so teams can effectively prioritize their pursuits and strengthen their pipelines.Our mission is to enhance the decision-making process surrounding infrastructure investments, ensuring that critical needs are addressed sooner and that communities benefit from more resilient infrastructure. Join Citylitics and contribute to an industry that will have lasting significance while helping to grow a company that stands at the forefront of applied AI. We operate with a results-driven mindset and a commitment to excellence in a collaborative environment where teamwork is key to overcoming challenges and celebrating successes together.This position offers a hybrid work model based out of our Toronto office.

Mar 20, 2026

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