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Java Jobs in Ontario (NOW HIRING)

We are seeking a highly skilled Senior Java Engineer to design, develop, and maintain scalable, high-performance enterprise applications. The ideal candidate will have deep expertise in Java and ...

We are seeking a highly skilled Senior Java Engineer to design, develop, and maintain scalable, high-performance enterprise applications. The ideal candidate will have deep expertise in Java and ...

\n \n \n \n \n Our client in Galway are beginning to hire Java Engineers (up to senior level) to help the team build out their globally renowned and ever\-present SAAS offering on a permanent basis.

Senior Java Developer

Toronto, ON ยท On-site +1

$91K - $120K/yr

Are you a Senior Java Developer who loves working with cutting-edge technologies and solving complex problems? If so, we have an exciting opportunity for you! We are looking for a Senior Java ...

Although having AEM experience is preferred, they will substitute this with the relevant Java experience. This is a very exciting opportunity to take your skills on to a global scale.

We are seeking a highly skilled Senior Java Engineer to design, develop, and maintain scalable, high-performance enterprise applications. The ideal candidate will have deep expertise in Java and ...

They are currently hiring multiple Software Engineers at mid and senior level. \n \n \n \n \n \n You'll be working primarily on the backend with a Java\/Spring Boot stack, dipping in and out of Scala ...

We are seeking a highly skilled Senior Java Engineer to design, develop, and maintain scalable, high-performance enterprise applications. The ideal candidate will have deep expertise in Java and ...

They are currently hiring multiple Software Engineers at mid and senior level. \n \n \n \n \n \n You'll be working primarily on the backend with a Java\/Spring Boot stack, dipping in and out of Scala ...

\n \n \n \n \n We are looking for Junior Java Developers to join a globally renowned FinTech company at their trendy Dublin City Centre offices. \n \n \n \n \n \n You'll delve deep into their cloud ...

They are currently hiring multiple Software Engineers at mid and senior level. \n \n \n \n \n \n You'll be working primarily on the backend with a Java\/Spring Boot stack, dipping in and out of Scala ...

Java & Application Development Lead design and development of enterprise applications using Java (Spring Boot, Spring Cloud, Hibernate). Establish best practices for coding standards, design patterns ...

Java Developer

Toronto, ON ยท Hybrid

CA$90K - CA$125K/yr

About The Role As a Full Stack Java Developer you'll be tasked with working on web application development in Java and Spring Boot. Working within the software development team, your duties will ...

Core Java, Python (and frameworks). \n * Agile Development, Test\-Driven Development \n * AWS, Azure, GCP environment exposure \n * \n \n Solid understanding of Microservices and ReST APIs \n \n \n ...

\n \n \n \n \n We are looking for an experienced Java Developer for an exciting contract position. \n \n \n \n \n \n You will be leading a cross functional team working on new and exciting products ...

\n \n \n \n \n Full Stack Java Developer (Java\/JavaScript\/ReactJS) \- 520 per day \- 12 month contract \- Long term project with multinational Financial Services client Duration: 12 Months Rolling ...

You will work on a high performing team of Senior Java Developers where you will be joining the newly formed Cloud Transformation team. There are many Cloud Architects across the team who you will be ...

We are looking for an experienced Java Technical Lead for our client. This is a permanent position that is remote anywhere in Canada! Our client is a global enterprise company with a product that you ...

Showing results 21-40

Java information

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

To thrive as a Java 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 development frameworks like Spring or Hibernate, version control systems such as Git, and relevant certifications (e.g., Oracle Certified Java Programmer) is highly beneficial. Analytical thinking, problem-solving, and effective communication are important soft skills that distinguish top candidates in collaborative environments. These skills and qualifications are vital for building robust, efficient applications and contributing effectively to development teams.

What is the difference between Java vs Python Developer?

AspectJava DeveloperPython Developer
Required CredentialsBachelor's in Computer Science, Java certificationsBachelor's in Computer Science, Python certifications
Work EnvironmentEnterprise applications, Android developmentWeb development, data science, automation
Industry UsageFinance, telecom, enterprise softwareTech startups, data analysis, AI projects
Common Search/ComparisonJava DeveloperPython Developer

Java and Python developers often share similar educational backgrounds and certifications. Java developers typically work on enterprise applications and Android development, while Python developers focus on web development, data science, and automation. Both roles are highly sought after in different industry sectors, with Java more common in large enterprises and Python popular in startups and AI projects.

What does a Java developer do?

A Java Developer is a software professional who specializes in designing, developing, and maintaining applications using the Java programming language. They often work on web, mobile, or enterprise applications, collaborating with other programmers, designers, and stakeholders to deliver functional software solutions. Their responsibilities include writing clean and efficient code, debugging issues, and ensuring applications are secure and scalable. Java Developers are also involved in testing, deploying, and updating software as technology and requirements evolve.

How does a Java developer typically collaborate with other teams during a software project?

Java developers frequently work alongside front-end developers, QA specialists, and project managers to ensure smooth delivery of software projects. They participate in code reviews, daily stand-ups, and sprint planning meetings, sharing progress and addressing technical challenges collaboratively. Effective communication and coordination with other departments, such as DevOps for deployment or UX/UI teams for interface integration, are essential for delivering high-quality applications. This collaborative environment helps Java developers expand their technical knowledge and build strong professional relationships.

What is Java?

Java is a class-based object-oriented programming language that was developed in 1995 by Sun Microsystems and later bought by Oracle. Java was designed as a general language capable of programming software for commercial use. It is based on several previous languages such as Objective C, C++, and C#. Java can be used on most major operating systems, including Windows, Apple, and Linux distributions. There is also a Java virtual machine, which allows programmers and developers to work on different operating systems within a single platform.

What are the most commonly searched types of Java jobs in Ontario? The most popular types of Java jobs in Ontario are:
What job categories do people searching Java jobs in Ontario look for? The top searched job categories for Java jobs in Ontario are:
What cities in Ontario are hiring for Java jobs? Cities in Ontario with the most Java job openings:
Infographic showing various Java job openings in Ontario as of August 2026, with employment types broken down into 1% Internship, 74% Full Time, 14% Part Time, and 11% Contract. Highlights an 83% Physical, 6% Hybrid, and 11% Remote job distribution.

Senior Java Developer

Virtusa

Mississauga, ON โ€ข On-site

Full-time

Re-posted 15 days ago


Job description

We are seeking a highly skilled Senior Java Engineer to design, develop, and maintain scalable, high-performance enterprise applications. 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 collaborating with cross-functional teams. Key Responsibilities Design, develop, test, and maintain high-quality Java applications and services Lead technical design discussions and contribute to architectural decisions Build and optimize RESTful APIs, microservices, and backend systems Ensure application performance, scalability, reliability, and security Write clean, maintainable, and well-documented code following best practices Conduct code reviews and provide constructive feedback to team members Mentor junior engineers and support team knowledge sharing Collaborate with product managers, QA, DevOps, and other stakeholders Troubleshoot complex technical issues in development and production environments Participate in Agile/Scrum ceremonies and contribute to continuous improvement Required Qualifications Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience) 7+ years of professional experience in software development Strong proficiency in Java (Java 17+) Experience with Spring / Spring Boot Solid understanding of object-oriented design, design patterns, and SOLID principles Experience building RESTful APIs and backend services Strong knowledge of SQL and relational databases (e.g., PostgreSQL, Oracle, MySQL) Familiarity with Git and modern CI/CD pipelines Experience working in Agile development environments Excellent problem-solving, communication, and collaboration skills Preferred Qualifications Experience with microservices architecture Exposure to cloud platforms (AWS, Azure, or GCP) Experience with containers and orchestration (Docker, Kubernetes) Knowledge of message queues / streaming platforms (Kafka, RabbitMQ) Familiarity with NoSQL databases (MongoDB, DynamoDB, Cassandra) Understanding of security best practices and authentication (OAuth2, JWT) Experience supporting high-availability or mission-critical systems


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About Virtusa

Sourced by ZipRecruiter

We are builders, makers, and doers with the technical skills and domain expertise to transform your business at scale and speed without disruption. Our unique Engineering First approach blends deep industry expertise and empowered, agile teams, to create holistic solutions that seamlessly move the business forward. We help clients engage with new technology paradigms to creatively build solutions that drive them to the forefront of their industries.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Westborough, MA, US

Year founded

1996

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