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Java Application Developer Jobs in Ontario (NOW HIRING)

StackandCo

Senior Java Application Developer

Galway, NY · On-site

Ask questions of the biggest datasets \n \n \n \n \n \n Role Overview Application developers will ... Excellent knowledge in JEE\/Spring, JAVA 8, Shell\-Scripting. \n * Extensive knowledge on modern ...

Iris Software Inc.

Mode of Work Hybrid (1-2 days onsite) Qualifications * 10+ years of experience in Java application development with strong expertise in Java, Spring Boot, Spring MVC, and microservices architecture.

United Airlines

Senior JAVA Developer

Toronto, ON

Java & Application Development Lead design and development of enterprise applications using Java ... Familiarity with DevOps tools (CI/CD pipelines, Jenkins, Git, Terraform). * Experience with API ...

fgf brands

Senior Mobile Application Developer We're a naan traditional company... Summary As a Senior Mobile ... Proficient knowledge of relevant computer languages for Android, iOS, and WebAPIs (Java, Kotlin ...

United States Digital Space LLC

Elevate your career as a Senior Software Engineer with US Servicing Platform Technology Solutions ... years of Java Application Development experience • Proficiency in the Spring framework ...

McMillan LLP

Enterprise Application Developer

Toronto, ON · Hybrid

CA$100K - CA$120K/yr

The Enterprise Application Developer is responsible for defining, designing, developing ... Java, JavaScript, PHP, C#, C/C++, Python, ASP.NET * 3+ years of experience developing RESTful APIs ...

Scotiabank

Senior Application Developer

Toronto, ON · On-site

The position is for a Senior Application Developer within the Group Treasury-Liquidity Risk group ... Talend , Java, K8S, Docker, SQL, Operating Systems (Linux Redhat), Tools (Jira, Confluence ...

StackandCo

... Application Developer to join their brand\-new Irish office building the next generation of ... Excellent knowledge in JEE\/Spring, JAVA 8, Maven, Shell\-Scripting. \n * Experience with micro ...

StackandCo

Senior Application Developer

Galway, NY

\n \n \n \n \n Role Overview The primary responsibility of the senior application developer, in ... Excellent knowledge in JEE\/Spring, JAVA 8, Maven, Shell\-Scripting. \n * Experience with micro ...

StackandCo

... application developers to join the team in Nenagh, Tipperary. \n \n \n The primary responsibility ... Excellent knowledge in JEE\/Spring, JAVA 8, Maven, Shell\-Scripting. \n * Experienced in runtime ...

StackandCo

\n \n \n \n \n Role Overview The primary responsibility of the application developer, in ... Excellent knowledge in JEE\/Spring, JAVA 8, Maven, Shell\-Scripting. \n * Experience with micro ...

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All JobsJava Application Developer JobsJava Application Developer Jobs in Ontario

Java Application Developer information

What is the difference between Java Application Developer vs Java Software Engineer?

AspectJava Application DeveloperJava Software Engineer
Required CredentialsBachelor's in Computer Science or related field, Java certificationsBachelor's in Computer Science or related field, Java certifications
Work EnvironmentDevelops, tests, and maintains Java applicationsDesigns and implements Java-based solutions, often involved in architecture
Employer & Industry UsageTech companies, software firms, enterprise applicationsTech firms, consulting, enterprise software development
Common Search & ComparisonFocuses on application development tasksBroader role including system design and architecture

Java Application Developers primarily focus on building, testing, and maintaining Java applications, while Java Software Engineers often have a broader role involving system design and architecture. Both roles require similar credentials and are used across tech and enterprise industries, but their day-to-day responsibilities differ slightly.

What are some common challenges Java application developers face when working on large-scale enterprise projects?

Java Application Developers working on large-scale enterprise projects often encounter challenges such as managing complex codebases, ensuring application scalability, and maintaining robust security practices. Coordinating with cross-functional teams like QA, DevOps, and UI/UX can also present integration and communication hurdles. Staying up-to-date with evolving Java frameworks and best practices is essential to address performance bottlenecks and optimize application efficiency. Proactive problem-solving and effective collaboration are key to overcoming these challenges.

What does a Java application developer do?

A Java Application Developer designs, develops, and maintains software applications using the Java programming language. They are responsible for writing clean, efficient code, debugging and resolving technical issues, and collaborating with other developers, designers, and stakeholders to ensure applications meet user needs. Java Application Developers often work on both frontend and backend components, integrate databases, and ensure the security and scalability of applications. They may also participate in code reviews, testing, and documentation throughout the software development lifecycle.

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

To thrive as a Java Application Developer, you need strong proficiency in Java programming, object-oriented design, and a solid understanding of software development principles, typically supported by a degree in computer science or a related field. Familiarity with frameworks like Spring or Hibernate, version control systems such as Git, and experience with build tools and IDEs are highly valued, and certifications like Oracle Certified Professional Java Programmer can be advantageous. Excellent problem-solving abilities, effective communication, and strong teamwork skills set top developers apart. These competencies ensure the delivery of robust, maintainable applications and facilitate collaboration in dynamic development environments.
What cities in Ontario are hiring for Java Application Developer jobs? Cities in Ontario with the most Java Application Developer job openings:
Java Application Developer jobs near you
Infographic showing various Java Application Developer job openings in Ontario as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Senior Java Application Developer

StackandCo

Galway, NY • On-site

Full-time

Re-posted 7 days ago

Job description

\n <\/head>\n \n \n
\n Successful candidate must hold an Irish\/EU Passport\/Stamp 4 Visa.*<\/span>
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\n My client is a global provider of financial services technology. They are building the next generation of commerce infrastructure, services and analytics to support continued growth of our business.<\/span>
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\n They are currently looking at expanding their technology centre and are seeking people who want to work on core product for deployment on a global scale. We want to talk with people who want to;<\/span>
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  • Create better experiences for users
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  • Prioritise ease of use and functionality
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  • Build and deploy new services
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  • Be passionate, impactful and Be first
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  • \n
    \n Join a team on a mission
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  • Ask questions of the biggest datasets
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    \n
    \n <\/div>\n
    \n Role Overview
    <\/u><\/b>Application developers will, in collaboration with a multidisciplinary delivery team, design and develop software applications based on defined requirements.<\/span>\n <\/div>\n
    \n
    \n <\/div>\n
    \n They are working on an enterprise scale system that is capable of processing upwards of 1000 transactions per second. You as a team member will be required to ensure that non\-functional requirements for performance, scalability, availability and overall system resilience are considered and maintained throughout. You will be working as part of a global distributed development organization using Agile Scrum methods.<\/span>
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    \n
    \n <\/div>\n
    \n Primary Objectives
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    • Contribute significantly to implementing technical solutions within a collaborative, high trust, solutions delivery team that will contain other developers, architects, product owners, SDETs and DevOps engineers.
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    • Work within a defined agile delivery process to deliver high quality code for complex projects.
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    • Production hand\-over activities the participation in on\-call availability where required.
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    • Responsible for the execution of required, complex, development tasks, including: unit tests, debugging with state\-of\-the\-art tools, programming languages and utilities.
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    • Validation activities including, component tests, regression tests, system integration tests.
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    • Support the development and implementation for new and existing web applications or services in the electronic payments area.
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    • Support the architectural direction and solution specification for new web applications and services.
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    • Implementation, documentation and quality assurance of software\/architectures and E2E\- solutions.
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    • Creation of monitoring and logging solutions to allow for state\-of\-the\-art monitoring of our high performance, enterprise production environment.
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    • Contribute to estimation efforts at a T\- shirt sizing level using your expertise in the relevant areas.
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    • Partner with developers, analysts, and tech leads across the enterprise, to identify business needs and appropriate technical solutions
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    • Knowledge transfer, active support and educational development of internal and external team members.
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      \n Knowledge & Skills
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      • 3 \- 5 years' experience in designing and developing web and services based applications. Full stack development experience is preferred.
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      • Comparable education or professional experience also considered.
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      • In\-depth experience with standard full stack technologies: Spring, Spring\-Boot, Spring\-Web, JSF, JPA\/Hibernate, REST, HTML\/CSS, JavaScript and Bootstrap.
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      • Excellent knowledge in JEE\/Spring, JAVA 8, Shell\-Scripting.
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      • Extensive knowledge on modern, relational databases (Oracle).
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      • Experienced in runtime, build and deployment technologies and state\-of\- the\-art project tools: CI\/CD, GIT, Maven, Eclipse, JIRA and Confluence.
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      • Willingness to take ownership and ability to show strong personal commitment for the department and the team goals; must be comfortable with being considered a reliable and proactive influential team member who is not afraid to take on responsibility in the team.
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      • Ability to communicate clearly to business analysts and stakeholders as well as technical\-representatives.
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      • Very strong and proven communication and coordination skills, open\-minded and determined.
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      • High on social skills, team spirit and empathy.
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      • Bachelor's degree in a relevant discipline such as computer science, business informatics or mathematics.
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        \n <\/div><\/span>
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