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Junior Java Developer Jobs in Kitchener Waterloo, ON

Faire

Staff Engineer - Growth Platform

Kitchener, ON · On-site

CA$190K - CA$262K/yr

... strong developer experience * Have strong experience in either: * Backend development (e.g., Kotlin, Java, C#, APIs, databases, distributed systems), or * Frontend development (e.g., React ...

Ford Motor Company

Software Engineer

Waterloo, ON · Hybrid

You will drive the architectural evolution of our flashing ecosystem, mentor junior engineers, and collaborate with cross-functional leaders to ensure our engineering, manufacturing, and service ...

Trusscore

Full Stack Developer

Kitchener, ON · On-site

CA$85K - CA$95K/yr

Your Mission Trusscore is seeking a mid-level full-stack developer to help build, standardize and scale our data and automation internal application ecosystem. Our ecosystem consists of front-end ...

Trusscore USA Inc

Full Stack Developer

Kitchener, ON · On-site

$85K - $95K/yr

Your Mission Trusscore is seeking a mid-level full-stack developer to help build, standardize and scale our data and automation internal application ecosystem. Our ecosystem consists of front-end ...

Targeted Talent

Intermediate .Net Developer

Kitchener, ON · Remote

$80K - $120K/yr

  • Medical

  • Dental

Net Developer for our client. This is a permanent position that is remote, or based in their office in Vancouver. Our client is an Enterprise company that builds SaaS products for Fortune 500 ...

Targeted Talent

Intermediate .Net Developer

Waterloo, ON · Remote

$80K - $120K/yr

  • Medical

  • Dental

Net Developer for our client. This is a permanent position that is remote, or based in their office in Vancouver. Our client is an Enterprise company that builds SaaS products for Fortune 500 ...

Targeted Talent

Intermediate .Net Developer

Kitchener, ON · Remote

$80K - $120K/yr

  • Medical

  • Dental

Net Developer for our client. This is a permanent position that is remote, or based in their office in Vancouver. Our client is an Enterprise company that builds SaaS products for Fortune 500 ...

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All JobsJava Developer JobsJunior Java Developer JobsJunior Java Developer Jobs in Kitchener Waterloo, ON

Junior Java Developer information

What is a junior Java developer?

Junior Java Developers are entry-level software engineers who specialize in building and maintaining applications using the Java programming language. They typically work under the supervision of more experienced developers and are responsible for writing code, debugging, and participating in code reviews. Their tasks may also include testing software, learning new frameworks, and assisting with the design and implementation of features. Junior Java Developers usually have foundational knowledge of Java and related technologies, and they are eager to develop their skills through hands-on experience.

What does a junior Java developer do?

Junior Java developers are entry-level programmers who are part of a team of coders and developers. They work on both front-end and back-end codes to build an application. Being a junior Java developer requires extensive knowledge of coding and the program language JavaScript to develop and troubleshoot products. As a junior Java developer, you run tests to pinpoint errors, migrate code and data, and ensure the program is integrated with other company developments.

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

A Junior Java Developer should have a solid understanding of Java programming, object-oriented principles, and basic software development concepts, often supported by a relevant degree or coding bootcamp. Familiarity with tools such as IntelliJ IDEA or Eclipse, version control systems like Git, and frameworks like Spring Boot is typically expected. Strong problem-solving abilities, attention to detail, and effective teamwork are important soft skills in this role. These competencies enable efficient code development, smooth collaboration, and the ability to quickly adapt to new technologies and project requirements.

What are some common challenges a junior Java developer might face during their first year, and how can they overcome them?

Junior Java Developers often encounter challenges such as understanding large codebases, adapting to agile development processes, and managing task priorities. To overcome these hurdles, it’s helpful to proactively seek mentorship from senior developers, regularly review documentation, and participate in code reviews. Effective communication with team members also accelerates learning and helps clarify requirements or technical uncertainties. Embracing continuous learning through online resources and hands-on projects will further strengthen your skills and confidence.

What is the difference between Junior Java Developer vs Java Developer?

AspectJunior Java DeveloperJava Developer
Required Experience0-2 years2+ years
CertificationsOptional, entry-level certificationsOptional, advanced certifications
Work EnvironmentSupportive, learning-focused teamsProject-driven, independent roles
ResponsibilitiesAssist in coding, bug fixing, learning frameworksDesign, develop, maintain Java applications

The main difference between a Junior Java Developer and a Java Developer lies in experience, responsibilities, and independence. Junior Java Developers are typically entry-level, focusing on learning and supporting tasks, while Java Developers have more experience and handle complex development projects independently.

How much do junior Java developers make?

Junior Java developers typically earn between $50,000 and $80,000 annually, depending on location, industry, and experience. Entry-level roles often require knowledge of Java, object-oriented programming, and development tools like Eclipse or IntelliJ IDEA.

Is a Junior Java Developer still in demand?

Junior Java Developers remain in demand due to the widespread use of Java in enterprise applications, web development, and Android app creation. Employers seek candidates with foundational Java skills, knowledge of frameworks like Spring, and familiarity with version control tools such as Git. Continuous learning and certifications can enhance job prospects in this field.
More about Junior Java Developer jobs

What are the most commonly searched types of Java Developer jobs in Kitchener Waterloo, ON?

The most popular types of Java Developer jobs in Kitchener Waterloo, ON are:

What job categories do people searching Junior Java Developer jobs in Kitchener Waterloo, ON look for?

The top searched job categories for Junior Java Developer jobs in Kitchener Waterloo, ON are:

What cities near Kitchener Waterloo, ON are hiring for Junior Java Developer jobs?

Cities near Kitchener Waterloo, ON with the most Junior Java Developer job openings:

Junior Java Developer jobs near you

Senior Software Engineer/ Software Developer (Backend)

PlayStation Global

Waterloo, ON • On-site

Full-time

Posted 2 days ago

New

Job description

Senior Software Engineer, BackendWaterloo, ON

Build what's next for players.

We're a startup inside Sony PlayStation: fast-moving, experimental, and highly ambitious, while backed by the scale, resources, and trust of Sony Interactive Entertainment.

We're building new mobile and web experiences that help gamers connect, discover, and play together in better ways. This is a rare opportunity to build at startup speed and deliver significant impact inside one of the largest gaming companies in the world.

We are seeking a Senior Backend Software Engineer to help define the architecture, services, data models, and technical standards that power our new consumer experiences.

Responsibilities

  • Define and evolve the backend architecture for highly available, scalable consumer applications across mobile and web.
  • Design, build, test, deploy, and operate reliable backend services and APIs.
  • Design data models and storage strategies across relational, non-relational, caching, and event-driven systems.
  • Make thoughtful architectural decisions related to scalability, consistency, availability, latency, security, and cost.
  • Drive performance optimization, service reliability, observability, monitoring, and incident response best practices.
  • Establish coding standards, testing strategies, deployment patterns, and development practices that raise the quality bar for backend engineering.
  • Partner with product managers, designers, and client engineers to translate product requirements into maintainable technical solutions.
  • Mentor engineers and act as a multiplier for backend development expertise across the broader team. 
  • Collaborate with security, privacy, and platform teams to ensure systems meet appropriate data protection and compliance requirements.
     

 Requirements

  • 5+ years of professional software development experience building and operating backend services in production.
  • BS/MS degree in Computer Science, Software Engineering, or equivalent practical experience.
  • Proficiency in server-side development (Node.js with TypeScript preferred).
  • Experience with relational and non-relational databases, including data modelling, indexing, transactions, and performance optimization (PostgreSQL preferred).
  • Demonstrated ability to design and build GraphQL and REST APIs.
  • Familiarity with caching, message queues, event streams, and asynchronous processing systems.
  • Solid understanding of cloud infrastructure, containerized services, CI/CD pipelines, and infrastructure as code (IaC).
  • Hands-on experience building and operating production systems on AWS, including compute, storage, networking, databases, and IAM.
Bonus
  • A track record of building social, community, gaming, or other consumer products.
  • Understanding of real-time communication systems, including messaging, presence, notifications, and activity feeds.
  • Experience designing social graphs, recommendation systems, content discovery services, or personalization platforms.
  • Experience with trust and safety, content moderation, abuse prevention, or user reporting systems.
  • Previous experience at an early-stage startup or on a zero-to-one product team.

Apply