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Java Backend Developer Jobs in Ontario (NOW HIRING)

StackandCo

... Java backend role but we would love it if you're skilled coding in React. \n \n \n \n \n \n \n We ... engineers in the company. \n \n \n \n \n \n \n Benefits include health insurance (for family ...

Virtusa

Senior Java Developer

Mississauga, ON · On-site

The ideal candidate will have deep expertise in Java and modern backend / frontend technologies, a strong understanding of system design, and the ability to mentor junior engineers while ...

Capco

Staff Java Engineer (Backend)

Toronto, ON · On-site

What You'll Do * Design and build scalable backend applications using Java, Spring Boot ... developer productivity and software quality. Bonus Points For * Experience with domain-driven ...

Virtusa

Senior Java Developer

Mississauga, ON · On-site

The ideal candidate will have deep expertise in Java and modern backend / frontend technologies, a strong understanding of system design, and the ability to mentor junior engineers while ...

Virtusa

Senior Java Developer

Mississauga, ON · On-site

The ideal candidate will have deep expertise in Java and modern backend / frontend technologies, a strong understanding of system design, and the ability to mentor junior engineers while ...

StackandCo

... a Java backend role but we would love it if you're skilled coding in React as well. \n \n \n \n \n ... engineers in the company. \n \n \n \n \n \n \n Benefits include health insurance (for family ...

Citi

Lead Java Developer

Mississauga, ON · On-site

CA$120K - CA$170K/yr

We are looking for a Java Engineer to design, build, and support modern web APIs ... This role focuses on back-end services (Java/Spring Boot), with API-first, microservices-based ...

StackandCo

\n \n \n \n \n Junior Java Developer\n \n \n 35K p\/a + benefits\n \n \n Java, AWS, Javascript \n \n ... backend Java stack with some Angular on the frontend. Strong academics are a huge advantage here ...

StackandCo

... Java on the backend primarily and if interested, contribute to their React frontend. \n \n \n ... Developer, ideally in a JVM environment\n \n * AWS experience would be highly beneficial\n \n

Atyeti Inc

Sr Java developer

Toronto, ON · On-site

A Java Developer designs, develops, tests, and maintains scalable Java-based applications (web ... Build new and enhance existing Java applications, including back-end services, APIs (RESTful), and ...

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All JobsJava Backend Developer JobsJava Backend Developer Jobs in Ontario

Java Backend Developer information

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$35

$58

$80

How much do java backend developer jobs pay per hour?

As of Sep 8, 2026, the average hourly pay for java backend developer in Ontario is $58.63, according to ZipRecruiter salary data. Most workers in this role earn between $49.04 and $65.62 per hour, depending on experience, location, and employer.

What does a Java backend developer do?

A Java Backend Developer is responsible for building and maintaining the server-side logic, databases, and APIs of web applications using the Java programming language. They ensure that data is properly stored, retrieved, and processed while integrating with the frontend systems. Java Backend Developers also work on optimizing application performance, implementing security measures, and collaborating with other developers to deliver robust software solutions.

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

Java Backend Developers working on large-scale enterprise applications often encounter challenges such as ensuring application scalability, managing complex codebases, and optimizing system performance under heavy loads. Collaborating across teams to integrate with front-end services and external APIs can require strong communication and problem-solving skills. Additionally, maintaining high code quality while delivering new features quickly often means balancing technical debt with innovation. Regular code reviews and adopting best practices in software architecture help address these challenges.

What are the key skills and qualifications needed to thrive as a Java backend developer, and why are they important?

To thrive as a Java Backend Developer, you need strong proficiency in Java programming, knowledge of data structures and algorithms, and experience with backend frameworks such as Spring or Hibernate, often supported by a degree in computer science or a related field. Familiarity with relational databases (like MySQL or PostgreSQL), RESTful API development, version control systems (such as Git), and build tools (like Maven or Gradle) is typically required, and certifications like Oracle Certified Professional Java Programmer can be advantageous. Excellent problem-solving skills, attention to detail, and effective communication are crucial soft skills for collaborating with teams and troubleshooting complex systems. These capabilities ensure robust, scalable, and maintainable backend solutions that meet business requirements and support seamless application performance.

What are the most commonly searched types of Java Backend Developer jobs in Ontario?

The most popular types of Java Backend Developer jobs in Ontario are:

What are popular job titles related to Java Backend Developer jobs in Ontario?

For Java Backend Developer jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Java Backend Developer jobs in Ontario look for?

The top searched job categories for Java Backend Developer jobs in Ontario are:

What are popular job titles related to Java Backend Developer jobs in ON?

For Java Backend Developer jobs in ON, the most frequently searched job titles are:

Java Backend Developer jobs near you
Infographic showing various Java Backend Developer job openings in Ontario as of August 2026, with employment types broken down into 75% Full Time, and 25% Contract. Highlights an 25% In-person, 50% Hybrid, and 25% Remote job distribution, with an average salary of $121,954 per year, or $58.6 per hour.

Fullstack Developer

On-site

StackandCo
See more jobs at StackandCoexternal

Full-time

Medical, Retirement

Re-posted 8 days ago

Job description

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\n An impressive software company in Dublin is looking for a Fullstack Engineer (permanent) to work within a small\-mid sized team on one of their new products.<\/span>\n
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\n The product crunches real\-time data to provide vital security information to clients all over the world.<\/span>\n
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\n We need someone comfortable working Fullstack, primarily a Java backend role but we would love it if you're skilled coding in React.<\/span>\n
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\n We have done a lot of work with this client over the past 1 \- 2 years and have had amazing feedback from the engineers in the company.<\/span>\n
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\n Benefits include health insurance (for family), pension, bonus, 25 days holidays etc.<\/span>\n
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\n Experience\n
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  • 4+ years' experience in Java Development\n
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  • Strong Frontend experience (ideally React)\n
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  • Experience working with Spring\n
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  • CI\/CD experience\n
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  • Data Processing\/Pipelines experience would be nice to have\n
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  • Python experience would be an added bonus\n
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