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Java Junior Jobs in Ontario (NOW HIRING)

Java Developer - Officer

Mississauga, ON · On-site

CA$79K - CA$110K/yr

The Java Developer Analyst is an junior level position within the Markets Treasury Technology team, specifically focusing on the Money Markets domain. This role is responsible for participating ...

Full Stack Java Developer

Mississauga, ON · Hybrid

CA$79K - CA$110K/yr

Citi is looking for a Full Stack Java Developer to join its Technology team and play a meaningful ... Coach and support junior analysts, sharing technical knowledge and contributing to team capability ...

Senior Java Developer

Etobicoke, ON · Hybrid

CA$120K - CA$140K/yr

As a Senior Java Back-End Developer at Localcoin, you will be responsible for developing and ... Guide and mentor junior developers, fostering a culture of learning, best practices, and technical ...

Mentor junior developers and analysts. Must Have Key Skills and Experience Required 8+ years relevant experience. Extensive Core Java 17 version & above experience with strong knowledge of data ...

Lead architectural decisions, perform comprehensive code reviews, and mentor junior and mid-level ... Advanced proficiency in Core Java, Spring Boot, microservices architecture, and asynchronous ...

Lead code reviews, establish engineering standards, and mentor junior engineers. * Participate in ... Deep expertise in Java/Kotlin. * Understanding in Python. * Strong frontend skills with React and ...

Java Developer, TD Securities

Toronto, ON · On-site

CA$102K - CA$125K/yr

We do this by designing, developing, and enhancing java based microservices that support different ... Lead technical discussions and high-performance professionals at various capacity (junior to senior ...

Senior Java Developer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

... or junior analysts Has the ability to operate with a limited level of direct supervision. Can ... Java development. Expert experience designing and developing robust, scalable, and resilient ...

Showing results 21-40

Java Junior information

What is a Java Junior?

Java Junior developers are entry-level software engineers who specialize in programming using the Java language. They typically have a foundational understanding of Java syntax, object-oriented programming concepts, and basic software development practices. Java Juniors often assist with coding, debugging, and testing under the supervision of more experienced developers, while continuously learning and building their technical skills. Their responsibilities may also include maintaining existing applications and writing simple features as part of a development team.

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

To thrive as a Java Junior, you need a solid understanding of Java programming, object-oriented principles, and a relevant degree or coursework in computer science. Familiarity with development tools like Eclipse or IntelliJ IDEA, version control systems (such as Git), and basic knowledge of databases are typically expected. Strong problem-solving abilities, eagerness to learn, and good communication skills help juniors excel in collaborative and fast-paced environments. These skills enable efficient coding, effective teamwork, and smooth adaptation to evolving project requirements.

What are some typical challenges a Java Junior might face when starting out, and how can they overcome them?

As a Java Junior, you may encounter challenges like understanding complex codebases, adapting to agile development practices, and debugging unfamiliar issues. It's common to feel overwhelmed at first, but asking questions, participating in code reviews, and pairing with more experienced developers can accelerate your learning. Regularly practicing coding, studying documentation, and using collaboration tools will also help you quickly become a productive member of the team.

What is the difference between Java Junior vs Java Developer?

AspectJava JuniorJava Developer
Required Experience0-2 years2+ years
CertificationsOptional, entry-level certificationsOptional, advanced certifications
Work EnvironmentTraining, mentorship-focusedProject-driven, independent
ResponsibilitiesLearning, basic coding tasksDesign, develop, maintain Java applications

Java Junior roles are entry-level positions focused on learning and supporting Java projects, often requiring minimal experience. Java Developers have more experience, handle complex tasks, and contribute to project design and implementation. The transition from Java Junior to Java Developer involves gaining skills, experience, and certifications over time.

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 Junior jobs in Ontario look for?

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

What cities in Ontario are hiring for Java Junior jobs?

Cities in Ontario with the most Java Junior job openings:

Infographic showing various Java Junior job openings in Ontario as of August 2026, with employment types broken down into 83% Full Time, 7% Part Time, and 10% Contract. Highlights an 81% Physical, 6% Hybrid, and 13% Remote job distribution.

Java Developer - Officer

Mississauga, ON • On-site

Citi
Banking and Credit Intermediation • 5 - 10K employees

CA$79K - CA$110K/yr

Full-time

Posted 11 days ago


Key responsibilities

  • Participate in developing, analyzing, and designing applications, systems, and microservices using Java, Spring Boot, and MongoDB.

  • Identify and define system enhancements, analyze applications for vulnerabilities, and conduct testing and debugging.

  • Consult with users and stakeholders to recommend programming solutions and support application implementation.


Citibank rating

8.4

Company rating: 8.4 out of 10

Based on 179 frontline employees who took The Breakroom Quiz

39th of 176 rated banks


Job description

The Java Developer Analyst is an junior level position within the Markets Treasury Technology team, specifically focusing on the Money Markets domain. This role is responsible for participating establishing, designing, and implementing highly resilient, scalable, and performant application systems and microservices in coordination with global technology and business partners. The overall objective of this role is to participated in developing applications, systems analysis, architecture, and programming activities, using Java, Spring Boot, and MongoDB in a cloud-native environment.

Responsibilities: Utilize knowledge of applications development procedures and concepts, and basic knowledge of other technical areas to identify and define necessary system enhancements, including using script tools and analyzing/interpreting code Consult with users, clients, and other technology groups on issues, and recommend programming solutions, install, and support customer exposure systems Apply fundamental knowledge of programming languages for design specifications. Analyze applications to identify vulnerabilities and security issues, as well as conduct testing and debugging Serve as advisor or coach to new or lower level analysts Identify problems, analyze information, and make evaluative judgements to recommend and implement solutions Resolve issues by identifying and selecting solutions through the applications of acquired technical experience and guided by precedents Has the ability to operate with a limited level of direct supervision. Can exercise independence of judgement and autonomy.

Acts as SME to senior stakeholders and /or other team members. Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency. Qualifications: 2-5 years of relevant experience in the Financial Service industry 1 year of experience in Core Java (Java 17+) and the Spring Boot ecosystem (Spring Cloud, Spring Security, Spring Data).

Intermediate level experience in Applications Development role Consistently demonstrates clear and concise written and verbal communication Demonstrated problem-solving and decision-making skills Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements Education: Bachelor's degree/University degree or equivalent experience This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Applications Development ------------------------------------------------------ Time Type: Full time ------------------------------------------------------ Primary Location Full Time Salary Range: $79,320.00 - $110,680.00 ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above

------------------------------------------------------ Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Automated Processing and AI We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

------------------------------------------------------ This job opening is for an existing job vacancy. ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi's EEO Policy Statement and the Know Your Rights poster.


What Citibank employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


Citigroup Inc logo

About Citigroup Inc

Sourced by ZipRecruiter

We live in an increasingly complex world. Companies these days are either born global or are going global at record speed. Business and geopolitics are forging an entirely new dynamic and consumers now expect financial services to be a seamless part of their digital lives. Citi is a bank that’s uniquely positioned for this moment. Through our vast global network and our on-the-ground expertise, we can connect the dots, anticipate change and empathize the needs of our clients and customers in ways that other banks simply cannot. Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. We have set expectations for how we must act to bring our mission to life. These expectations are at the heart of our Leadership Principles – we take ownership, we deliver with pride and we succeed together.

Industry

Banking and credit intermediation

Company size

5,001 - 10,000 Employees

Headquarters location

New York City, NY, US