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Freelance Java Spring Developer Jobs in Ontario (NOW HIRING)

Java Developer - 5+ Years Location: Canada Experience: 5+ Years Job Type: Full-Time /C2C Work Model ... Current Canadian Java roles commonly emphasize Java/Spring Boot, microservices, REST APIs, SQL ...

\n \n \n \n \n We are looking for an experienced Java Developer for a contract position in Dublin ... Minimum 4 years development experience \- Java\/ Spring\n \n * Experience with JavaScript and ...

Java Full Stack Developer

Toronto, ON · On-site

CA$95K - CA$135K/yr

Backend: Strong proficiency in Core Java, Spring Boot, Microservices architecture, and REST API ... Cloud & DevOps: Hands-on experience with AWS cloud services, Docker containerization, Kubernetes ...

It still maintains a close knit community environment with very low staff turnover. \n \n \n \n \n \n \n We are looking for a Fullstack Developer \- Java\/Spring stack with a React frontend (more ...

\n \n \n \n \n Senior Java Developer required for a Cybersecurity organisation in Dublin, working ... Extensive experience working with a Java\/Spring stack\n \n * Experience at all stages of the SDLC ...

Extensive experience working with a Java\/Spring stack\n \n * Solid DevOps exposure would be nice to have\n \n * React experience would be a plus\n \n \n \n \n \n \n \n \n

Senior Java Developer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

... developer experience ... Responsibilities Design and develop web-based applications, cloud services in Angular/Java/Spring ...

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 ...

Senior Java Developer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

We are seeking a highly motivated and experienced Senior Java Developer to join our dynamic team ... Design and develop web-based applications, cloud services in Angular/Java/Spring/OpenShift stack

Java Developer - Officer

Mississauga, ON · On-site

CA$79K - CA$110K/yr

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 ...

CA$110K - CA$115K/yr

... engineering execution ... The ideal candidate combines deep Java and Spring expertise with strong systems-design capability.

Senior Java Developer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

The ideal candidate will possess deep expertise in Java/J2EE and Spring Boot. This role demands a ... You will lead a team of junior developers, providing technical guidance, mentorship, and fostering ...

Utilize mature programming methodologies and languages, including Java Spring Boot and React.js, to deliver and maintain high-quality software solutions Design, develop, test, and deploy end-to-end ...

CA$80K - CA$100K/yr

The ideal candidate will have strong expertise in Java, Spring Boot, microservices architecture ... Collaborate with UI/UX, DevOps, QA, Product, and other cross-functional teams to define and deliver ...

They are currently hiring multiple Software Engineers at mid and senior level. \n \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 ...

We are seeking a highly motivated and experienced Lead Java Developer to join our dynamic team ... Design and develop web-based applications, cloud services in Angular/Java/Spring/OpenShift stack

They are currently hiring multiple Software Engineers at mid and senior level. \n \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 ...

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Freelance Java Spring Developer information

What is a freelance Java Spring developer?

A Freelance Java Spring Developer is a self-employed software professional who specializes in building, maintaining, and optimizing applications using the Java programming language and the Spring framework. These developers work on a contract or project basis for various clients, rather than as full-time employees for a single company. Their responsibilities often include designing backend systems, integrating APIs, and ensuring applications are scalable and secure. Freelance Java Spring Developers typically manage their own schedules and may work remotely for clients around the world.

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

To thrive as a Freelance Java Spring Developer, you need a solid understanding of Java programming, Spring Framework (including Spring Boot), and experience with RESTful APIs, typically supported by a degree in computer science or relevant certifications. Familiarity with tools like Maven, Git, Docker, and cloud platforms such as AWS or Azure is often required. Strong problem-solving, time management, and client communication skills help you stand out in this role. These competencies ensure you can deliver robust solutions efficiently while managing multiple clients and projects in a dynamic freelance environment.

What are the most common challenges faced by freelance Java Spring developers when working with multiple clients simultaneously?

Freelance Java Spring Developers often juggle projects for multiple clients, which can pose challenges such as managing shifting priorities, aligning with different coding standards, and keeping up with varied communication styles. Successfully navigating these requires strong organizational skills, clear project documentation, and proactive communication to set expectations. Additionally, freelancers must stay updated with the latest Spring framework updates to deliver high-quality, maintainable solutions across diverse client environments.

What is the difference between Freelance Java Spring Developer vs Java Backend Developer?

AspectFreelance Java Spring DeveloperJava Backend Developer
CredentialsOften requires Java certifications, Spring certifications, and relevant experienceTypically requires a Java degree or equivalent experience, with or without certifications
Work EnvironmentIndependent, project-based, remote or on-site freelance workFull-time employment in a company or organization, often in an office setting
Employer & Industry UsageClients across various industries hiring for specific projectsEmployers in tech, finance, e-commerce, and other sectors with ongoing backend needs
Search & Comparison IntentLooking for freelance opportunities or contract work in Java Spring developmentSeeking full-time or permanent backend development roles in Java

In summary, Freelance Java Spring Developers typically work independently on short-term projects, requiring specific certifications and flexible work environments. Java Backend Developers usually hold full-time roles within organizations, focusing on ongoing backend system development.

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

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

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

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

What cities in Ontario are hiring for Freelance Java Spring Developer jobs?

Cities in Ontario with the most Freelance Java Spring Developer job openings:

Java Developer 1016

Toronto, ON • On-site

Full-time

Posted 19 days ago


Key responsibilities

  • Design, develop, test, and maintain Java-based applications.

  • Develop scalable RESTful APIs and microservices using Spring Boot.

  • Support application deployment and production issues.


Job description

Java Developer – 5+ YearsLocation: Canada
Experience: 5+ Years
Job Type: Full-Time /C2C
Work Model: Remote / Hybrid / On-site
Job Summary

We are looking for an experienced Java Developer with 5+ years of hands-on experience in designing, developing, and maintaining scalable enterprise applications. The ideal candidate should have strong expertise in Core Java, Spring Boot, Microservices, REST APIs, SQL, and cloud technologies.
Current Canadian Java roles commonly emphasize Java/Spring Boot, microservices, REST APIs, SQL/NoSQL, Git/CI/CD, Agile, and cloud/container technologies.
Key Responsibilities
  • Design, develop, test, and maintain Java-based applications.
  • Develop scalable RESTful APIs and microservices using Spring Boot.
  • Work with business and technical teams to understand requirements and deliver solutions.
  • Write clean, maintainable, and efficient code.
  • Design and optimize database queries and data access layers.
  • Perform unit testing, integration testing, debugging, and troubleshooting.
  • Participate in code reviews and technical discussions.
  • Develop and maintain CI/CD pipelines.
  • Support application deployment and production issues.
  • Follow Agile/Scrum development methodologies.
  • Collaborate with QA, DevOps, Product, and other development teams.
Required Skills
  • 5+ years of professional Java development experience

  • Strong knowledge of Core Java / Java 8+

  • Strong experience with Spring Framework and Spring Boot

  • Hands-on experience with Microservices Architecture

  • Strong knowledge of REST APIs

  • Experience with Spring MVC, Spring Data JPA, Hibernate

  • Good knowledge of SQL databases such as MySQL, PostgreSQL, or Oracle
  • Experience with Git

  • Experience with CI/CD tools such as Jenkins, GitLab, Azure DevOps, or similar
  • Good understanding of Object-Oriented Programming and Design Patterns

  • Experience working in Agile/Scrum environments

  • Strong problem-solving and debugging skills
Preferred Skills
  • AWS, Azure, or Google Cloud
  • Docker and Kubernetes
  • Kafka or other messaging technologies
  • NoSQL databases such as MongoDB
  • Spring Security, OAuth2, and JWT
  • JUnit / Mockito
  • Swagger / OpenAPI
  • Experience with production support and monitoring
  • Knowledge of cloud-native application development
Education
  • Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field is preferred.
  • Equivalent professional experience may also be considered.
Candidate Requirements
  • Must have 5+ years of relevant Java development experience.
  • Must be currently eligible to work in Canada.
  • Strong communication and interpersonal skills.
  • Ability to work independently as well as in a team environment.
  • Willingness to work in remote or hybrid environments, depending on the client requirement.
Keywords: Java Developer, Core Java, Java 8/11/17, Spring Boot, Spring, Microservices, REST API, Hibernate, JPA, SQL, MongoDB, AWS, Azure, Docker, Kubernetes, Kafka, Git, Jenkins, CI/CD, Agile, JUnit.