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Fullstack Developer Java Jobs in Ontario (NOW HIRING)

It still maintains a close knit community environment with very low staff turnover. \n \n \n \n \n \n \n We are looking for a Fullstack Developer \- Java\/Spring stack with a React frontend (more ...

We need someone comfortable working Fullstack, primarily a Java backend role. We have done a lot of work with this client over the past 1 \- 2 years and have had amazing feedback from the engineers ...

\n \n \n \n \n A software company in Dublin is seeking a Fullstack Engineer (permanent) to work ... a Java backend role but we would love it if you're skilled coding in React as well. \n \n \n \n \n ...

\n \n \n \n \n An impressive software company in Dublin is looking for a Fullstack Engineer ... Java backend role but we would love it if you're skilled coding in React. \n \n \n \n \n \n \n We ...

\n \n \n \n \n Our client, an impressive SAAS company, is continuing to build out their tech operations in Dublin. \n \n \n \n \n \n \n We are looking for Java\/Fullstack Software Engineers to join ...

... team of around 20 developers who are continuing to build out a SAAS product using a Java stack primarily. \n \n \n \n \n \n \n We need someone who is comfortable building out functionality ...

\n \n \n \n \n Senior Fullstack Developer needed for an impressive Irish tech company building a ... Java developers with extensive frontend exposure. \n \n \n \n \n \n \n You will join a tight\-knit ...

\n \n \n \n \n Senior Fullstack Developer needed for an impressive Irish tech company building a ... strong Java developers with extensive frontend exposure. \n \n \n \n \n \n \n You'll join a ...

... Fullstack Engineers who are skilled on both the backend and UI, however this role will be much ... A minimum of 4 years' Java Development experience\n \n * Strong frontend experience with a relevant ...

\n \n \n \n \n Java\/Fullstack Engineer required for a startup in Waterford who are expanding the dev team and hoping to almost double their headcount this year. \n \n \n \n * You'll get the chance to ...

... or Java/J2EE. Knowledge of JS frameworks is a plus. Good hands on knowledge of web technologies ... Understanding of engineering culture. Experience with building enterprise solutions is a plus.

You'll be working Fullstack, primarily on a Spring Boot backend, along with their Angular frontend ... The bones of the job is Java backend development, so we are seeking strong engineers with Java ...

... Fullstack Engineers who are skilled on both the backend and UI, however this role will be much ... A minimum of 4 years' Java Development experience\n \n * Strong frontend experience with a relevant ...

Lead .Net Fullstack Developer

Mississauga, ON · On-site

CA$120K - CA$170K/yr

We are seeking a highly motivated and skilled Senior Full-Stack Developer to join our team. As a ... Experience with Java, Elastic search, Kafka. Education: Bachelor's degree/University degree or ...

... * 5+ years' Java Development experience\n \n * Cloud experience\n \n * An interest in Machine ... An ambition to lead engineers would be nice to have\n \n * Solid Linux background\n \n \n \n \n \n ...

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Fullstack Developer Java information

What are the roles and responsibilities of a fullstack developer Java?

A Fullstack Developer Java is responsible for designing, developing, and maintaining both the front-end and back-end components of web applications using Java and related technologies. Their duties include building user interfaces, developing server-side logic, integrating APIs, and managing databases. They often work with frameworks such as Spring Boot for back-end development and may use JavaScript frameworks like React or Angular for the front-end. Fullstack Java developers also ensure the application is secure, scalable, and meets client requirements. Collaboration with other team members, such as UI/UX designers and testers, is a key part of the role.

How does a fullstack developer Java balance front-end and back-end responsibilities within a team?

Fullstack Developer Java roles often require a flexible approach, as you may shift between front-end tasks like building user interfaces (using frameworks such as React or Angular) and back-end development (using Java, Spring Boot, etc.) based on project needs. Collaboration with UI/UX designers, DevOps engineers, and backend specialists is common, especially in agile environments where responsibilities can change sprint-to-sprint. It's important to communicate openly with team members to ensure seamless integration and to manage workload effectively. Being comfortable with both client-side and server-side technologies allows you to contribute across the stack and increases your value within the team.

What are the key skills and qualifications needed to thrive as a fullstack developer Java?

To thrive as a Fullstack Developer Java, you need strong proficiency in Java, JavaScript, HTML, CSS, and a solid understanding of both backend and frontend frameworks, typically supported by a degree in computer science or related field. Familiarity with tools like Spring Boot, React or Angular, REST APIs, version control systems like Git, and experience with databases such as MySQL or MongoDB are commonly required. Excellent problem-solving, teamwork, and communication skills help developers collaborate effectively and deliver robust solutions. These competencies ensure seamless end-to-end development, allowing for the creation of scalable, maintainable, and user-friendly web applications.

What is the difference between Fullstack Developer Java vs Backend Developer Java?

AspectFullstack Developer JavaBackend Developer Java
Primary FocusDeveloping both frontend and backend componentsDeveloping server-side logic and database integration
Required SkillsJava, HTML, CSS, JavaScript, frameworks like React or AngularJava, Spring, Hibernate, database management
Work EnvironmentCollaborates on full application stack, often in agile teamsFocuses on backend systems, APIs, and server-side architecture
CertificationsJava certifications, fullstack development coursesJava certifications, backend-specific courses

Fullstack Developer Java and Backend Developer Java share core Java skills and often work within similar industries. However, fullstack developers handle both frontend and backend tasks, while backend developers focus solely on server-side logic. Your choice depends on whether you prefer working across the entire application or specializing in backend systems.

What cities in Ontario are hiring for Fullstack Developer Java jobs?

Cities in Ontario with the most Fullstack Developer Java job openings:

Infographic showing various Fullstack Developer Java job openings in Ontario as of August 2026, with employment types broken down into 72% Full Time, 14% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Senior Java Fullstack Developer

On-site

Full-time

Re-posted 11 days ago


Job description

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\n We have a great opportunity to join a globally renowned SAAS company in Dublin City Centre.<\/span>\n
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\n The Dublin tech team is a well\-established hub (previously a start\-up that was bought over by a multinational). It still maintains a close knit community environment with very low staff turnover.<\/span>\n
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\n We are looking for a Fullstack Developer \- Java\/Spring stack with a React frontend (more backend work) and experience in data processing\/pipelines etc. would be also nice to have.<\/span>\n
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\n Remote interviews & onboarding.<\/span>\n
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\n Experience\n
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  • 4+ years' experience as a Software Developer (Java)\n
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  • Strong communicator and a team player\n
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  • Spring framework experience\n
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  • Good frontend (JavaScript) experience, React ideal\n
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  • Experience (or an interest) in data processing would be nice to have\n
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