ZipRecruiter

Log In

1

Sr Java J2Ee Developer Jobs in Waterloo, ON (NOW HIRING)

Targeted Talent

Senior Quality Engineer

Kitchener, ON · Remote

We are looking for an experienced Senior Quality Engineer for our client. This is a permanent ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Targeted Talent

Senior QE Engineer

Waterloo, ON · Remote

We are looking for an experienced Senior Quality Engineer for our client. This is a permanent ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Targeted Talent

Senior Quality Engineer

Kitchener, ON · Remote

We are looking for an experienced Senior Quality Engineer for our client. This is a permanent ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Targeted Talent

Senior Quality Engineer

Waterloo, ON · Remote

We are looking for an experienced Senior Quality Engineer for our client. This is a permanent ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Targeted Talent

Senior QE Engineer

Kitchener, ON · Remote

We are looking for an experienced Senior Quality Engineer for our client. This is a permanent ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Targeted Talent

Senior Quality Engineer

Waterloo, ON · Remote

We are looking for an experienced Senior Quality Engineer for our client. This is a permanent ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Targeted Talent

Senior QE Engineer

Waterloo, ON · Remote

We are looking for an experienced Senior Quality Engineer for our client. This is a permanent ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Targeted Talent

Senior QE Engineer

Kitchener, ON · Remote

We are looking for an experienced Senior Quality Engineer for our client. This is a permanent ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Micro1

Remote Senior Software Engineer

Stratford, ON · Remote

Senior Software Engineer $50 - $100/hourpay Required Skills Python3 JAVA Rust Algorithms Basics C++ Typescript bug fixing feature implementation codebase refactoring performance optimization About ...

Micro1

Remote Senior Software Engineer

Guelph, ON · Remote

Senior Software Engineer $50 - $100/hourpay Required Skills Python3 JAVA Rust Algorithms Basics C++ Typescript bug fixing feature implementation codebase refactoring performance optimization About ...

Micro1

Remote Senior Software Engineer

Brantford, ON · Remote

Senior Software Engineer $50 - $100/hourpay Required Skills Python3 JAVA Rust Algorithms Basics C++ Typescript bug fixing feature implementation codebase refactoring performance optimization About ...

Micro1

Remote Senior Software Engineer

Waterloo, ON · Remote

Senior Software Engineer $50 - $100/hourpay Required Skills Python3 JAVA Rust Algorithms Basics C++ Typescript bug fixing feature implementation codebase refactoring performance optimization About ...

Agfa

Senior Software Developer Cloud

Waterloo, ON · On-site

We are seeking a Senior Software Developer to join our Waterloo team. As a vital member of our team ... Hands-on development, design, and coding experience with Java /Springboot is an asset. * Experience ...

Targeted Talent

Mobile Developer (Android)

Waterloo, ON · On-site

With multiple roles open, Intermediate (2-4 years) and Senior (4+ years) candidates are encouraged ... Prior experience working on Android applications in Java is a plus * Ideally prior experience ...

previous pagenext page

Showing results 21-40

All JobsSr Java J2Ee Developer JobsSr Java J2Ee Developer Jobs in Waterloo, ON

Sr Java J2Ee Developer information

What is the difference between Sr Java J2Ee Developer vs Java Software Engineer?

AspectSr Java J2Ee DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentDevelops enterprise applications, often in large teamsDesigns and develops Java applications, may work in teams or individually
Industry UsageCommon in finance, healthcare, and enterprise sectorsUsed across various industries including tech, finance, and startups
Search & Comparison IntentOften compared for seniority, responsibilities, and skillsCompared for roles, skills, and career progression

While both roles involve Java development, Sr Java J2Ee Developers typically focus on enterprise-level applications with more experience and responsibilities, whereas Java Software Engineers may work on a broader range of Java projects, including both enterprise and consumer applications.

What are some common challenges Sr Java J2EE developers face when working on large-scale enterprise applications?

Sr Java J2EE Developers often encounter challenges such as managing application scalability, ensuring code maintainability, and integrating with legacy systems. Large-scale projects typically involve coordinating with cross-functional teams, which requires effective communication and collaboration skills. Additionally, staying updated with evolving frameworks and best practices is crucial to address performance bottlenecks and maintain security. Proactively addressing these challenges is essential for delivering robust, high-quality enterprise solutions.

What is a Sr Java J2EE developer?

Sr Java J2EE Developers are experienced software engineers who specialize in building, deploying, and maintaining enterprise-level applications using Java and the Java 2 Platform, Enterprise Edition (J2EE). They work with technologies like Servlets, JSP, EJB, and frameworks such as Spring and Hibernate to develop scalable, secure, and reliable software solutions. Senior developers often lead teams, design system architecture, and ensure best coding practices are followed throughout the software development lifecycle.

What are the key skills and qualifications needed to thrive as a Sr Java J2EE developer, and why are they important?

To thrive as a Sr Java J2EE Developer, you need advanced proficiency in Java programming, expertise in J2EE frameworks, and a bachelor's degree in computer science or a related field. Familiarity with tools like Spring, Hibernate, Maven, RESTful APIs, and version control systems such as Git is typically required. Strong problem-solving abilities, effective communication, and leadership skills make a developer stand out in this senior role. These competencies are crucial for designing robust enterprise applications, collaborating with cross-functional teams, and leading projects to successful completion.
What job categories do people searching Sr Java J2Ee Developer jobs in Waterloo, ON look for? The top searched job categories for Sr Java J2Ee Developer jobs in Waterloo, ON are:
What cities near Waterloo, ON are hiring for Sr Java J2Ee Developer jobs? Cities near Waterloo, ON with the most Sr Java J2Ee Developer job openings:
Sr Java J2Ee Developer jobs near you
Infographic showing various Sr Java J2Ee Developer job openings in Waterloo, ON as of August 2026, with employment types broken down into 52% Full Time, and 48% Contract. Highlights an 93% In-person, and 7% Hybrid job distribution.

Senior Software Engineer / Software Developer (React Native)

PlayStation Global

Waterloo, ON

Full-time

Posted 18 days ago

Job description

Senior Software Engineer / Software Developer (React Native) 

Build what's next for players.

We're a startup inside Sony PlayStation. Fast-moving, experimental, and highly ambitious. 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 design at startup speed and drive huge impact inside the largest gaming company in the world.

We are seeking a Senior Software Engineer / Software Developer specializing in React Native and high-performance frontend development for mobile platforms. In this role, you will define the architecture, frameworks, and technical best practices.

You will collaborate closely with engineers, product, and design teams to deliver best-in-class user interfaces that are performant, accessible, and delightful at scale. As a Senior Engineer, you will provide technical leadership across teams, mentor engineers, and push the boundaries of what's possible in cross-platform frontend development.

Responsibilities

  • Define and evolve the frontend architecture for client applications on mobile using React Native and modern JavaScript/TypeScript.
  • Drive performance optimizations and best practices for rendering, startup time, and UI responsiveness.
  • Design and integrate custom native modules (Native Android or Native iOS) and optimize cross-platform interoperability.
  • Partner with product managers, designers, and researchers to translate user experience requirements into elegant, maintainable solutions.
  • Establish coding standards, testing strategies, and development patterns that raise the quality bar for frontend engineering.
  • Mentor engineers and act as a multiplier for frontend development expertise across the broader team.
  • Investigate new frontend technologies, frameworks, and performance techniques, and guide their adoption when appropriate.
  • Represent frontend/OS needs in technical and architectural discussions.

Requirements

  • 5+ years of software development experience, with significant experience building React Native apps or high-performance JavaScript/TypeScript applications.
  • BS/MS degree in Computer Science or equivalent.
  • Expertise in native Android development (Kotlin/Java/Gradle) and shipping applications to the Google Play Store.
  • Strong expertise in frontend performance profiling, optimization, and debugging.
  • Passion for delivering world-class user interfaces with exceptional performance.
  • Deep understanding of cross-platform architecture and how to bridge between JS and native modules.
  • Proven track record of delivering production-quality mobile or desktop applications with React Native.
  • Experience designing scalable frontend architectures and reusable UI frameworks.
  • Strong collaboration skills and ability to work closely with native engineers, designers, and product managers.
  • Demonstrated technical leadership: leading projects, mentoring engineers, or setting engineering strategy.

Bonus

  • A track record of building social, community, gaming, or other consumer products.
  • Familiarity with VoIP, call dialing and ringing flows in Android/React Native
  • Experience with accessibility, internationalization, and UI testing frameworks. 
  • Familiarity with CI/CD pipelines and modern build systems for frontend development.
  • Previous experience at an early-stage startup or on a zero-to-one product team.

Apply