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Freelance Java Back End Developer Jobs in Toronto, ON

What You'll Do Backend & Systems Development * Design, build, and maintain scalable, distributed ... Strong backend engineering experience, with Java as a core language * Proven experience as a Full ...

... Developer to join our team on a transformative cloud modernization program. This is a rare ... Design, develop, and maintain high-quality software solutions using Java/ Spring Boot. * Implement ...

What You'll Do Backend & Systems Development * Design, build, and maintain scalable, distributed ... Strong backend engineering experience, with Java as a core language * Proven experience as a Full ...

A Java Developer designs, develops, tests, and maintains scalable Java-based applications (web ... Build new and enhance existing Java applications, including back-end services, APIs (RESTful), and ...

We are seeking a talented Java Developer with expertise in Spring, Spring Boot, REST APIs, SOAP ... backend technologies. * Design and implement RESTful APIs and SOAP services. * Maintain the ...

The ideal candidate will have a minimum of 8 years of professional experience as an UI Developer and experience in Java Backend +Node JS +AWS or Fullstack + Node JS + AWS kind of profiles. As a ...

Backend Development (Primary Focus) • Build scalable, high-performance RESTful APIs using Java 17 ... Cloud & DevOps • Deploy and operate on AWS (EC2, S3, RDS, Lambda, API Gateway, CloudWatch). • ...

Commercial Banking Engineering is seeking a skilled Java Developer with extensive experience in ... The ideal candidate will have a strong foundation in both front-end and back-end technologies, with ...

Actively work to improve the developer process and experience in all phases from coding to ... Experience in Python, Java, C++, or Go or another language and a willingness to learn * Experience ...

Java Developer

Toronto, ON

CA$90K - CA$110K/yr

We do not use AI to screen, assess, or select applicants Job Overview The Java Developer is ... This role focuses on designing and building scalable backend services and APIs using the Spring ...

Java Developer

Toronto, ON · On-site

CA$90K - CA$110K/yr

We do not use AI to screen, assess, or select applicants Job Overview The Java Developer is ... This role focuses on designing and building scalable backend services and APIs using the Spring ...

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Freelance Java Back End Developer information

What are the key skills and qualifications needed to thrive as a Freelance Java Back End Developer, and why are they important?

To thrive as a Freelance Java Back End Developer, you need strong proficiency in Java, object-oriented programming, RESTful API design, and experience with frameworks like Spring or Hibernate, typically supported by a relevant degree or proven project portfolio. Familiarity with version control systems (such as Git), build tools (like Maven or Gradle), cloud platforms, and continuous integration/continuous deployment (CI/CD) pipelines is highly valued. Outstanding problem-solving abilities, self-motivation, and effective client communication set top freelancers apart. These skills ensure you can deliver robust, maintainable solutions independently and build lasting client relationships.

What are some common challenges faced by Freelance Java Back End Developers when working with multiple clients simultaneously?

Freelance Java Back End Developers often juggle several projects at once, which can present challenges in time management, prioritizing tasks, and aligning with different client expectations. Each client may use distinct tech stacks, communication tools, and development processes, requiring adaptability and strong organizational skills. Clear communication, setting realistic deadlines, and using project management tools can help freelancers maintain quality and meet deliverables across diverse projects.

What does a Freelance Java Back End Developer do?

A Freelance Java Back End Developer is a software professional who specializes in building and maintaining the server-side logic of web applications using the Java programming language. They work independently on a contract basis for various clients, handling tasks such as developing APIs, managing databases, and ensuring the performance and security of the application’s back end. Their responsibilities often include collaborating with front-end developers, integrating third-party services, and troubleshooting server-side issues. Freelancers in this role can work remotely or onsite, offering flexibility to both clients and developers.

What is the difference between Freelance Java Back End Developer vs Freelance Java Software Engineer?

AspectFreelance Java Back End DeveloperFreelance Java Software Engineer
CredentialsJava certifications, experience in backend frameworksJava certifications, broader software development skills
Work EnvironmentRemote, project-based, client-specificRemote or on-site, project or product-focused
Industry UsagePrimarily in backend development projectsInvolved in full software development lifecycle
Search & Comparison IntentFocus on backend Java skillsBroader software development expertise

While both roles involve Java skills, a Freelance Java Back End Developer specializes in server-side development, focusing on backend systems. A Freelance Java Software Engineer may have a broader scope, including full-stack or application development, often requiring additional skills beyond backend work.

What are the most commonly searched types of Java Back End Developer jobs in Toronto, ON? The most popular types of Java Back End Developer jobs in Toronto, ON are:
What are popular job titles related to Freelance Java Back End Developer jobs in Toronto, ON? For Freelance Java Back End Developer jobs in Toronto, ON, the most frequently searched job titles are:
What job categories do people searching Freelance Java Back End Developer jobs in Toronto, ON look for? The top searched job categories for Freelance Java Back End Developer jobs in Toronto, ON are:
Infographic showing various Freelance Java Back End Developer job openings in Toronto, ON as of May 2026, with employment types broken down into 58% Full Time, and 42% Contract. Highlights an 78% In-person, and 22% Remote job distribution.
Fullstack Developer (Java, React)

Fullstack Developer (Java, React)

Veem

Toronto, ON • Remote

Full-time

Posted 15 days ago


Job description

Location: Fully Remote - EST Time Zone - In Canada

Comp: Salary + Bonus + Health Benefits 

About Veem

Veem is transforming the way businesses send and receive payments globally. Traditional cross-border payments are slow, costly, and fragmented—we’ve built a modern platform that makes global transactions seamless, transparent, and efficient.

Our platform powers global payments, FX optimization, and embedded financial solutions for businesses and partners worldwide. As we scale, we’re investing heavily in building reliable, high-performance systems that can support growing transaction volumes and increasingly complex integrations.


About the Role

We’re looking for a Full Stack Engineer with a strong backend focus to help build and scale our core platform.

This role is ideal for someone who enjoys working across the stack but is passionate about backend engineering—designing distributed systems, optimizing performance, and building reliable services for transaction-heavy environments. You’ll play a key role in developing scalable SaaS applications while collaborating closely with cross-functional teams.


What You’ll DoBackend & Systems Development
  • Design, build, and maintain scalable, distributed enterprise SaaS applications
  • Develop high-performance backend services to support transaction-heavy systems
  • Ensure system reliability, scalability, and performance across core services
Full Stack Development
  • Contribute to frontend development using React where needed
  • Build end-to-end features across the stack, ensuring seamless user experiences
  • Collaborate with design and product teams to deliver intuitive interfaces
API & Integration Development
  • Design and develop APIs using an API-first approach
  • Build and maintain integrations with external partners and third-party systems
  • Ensure secure, reliable, and scalable data exchange across services
Collaboration & Engineering Excellence
  • Work closely with Product, Design, and other engineering teams to deliver high-quality solutions
  • Participate in code reviews, technical design discussions, and architecture decisions
  • Contribute to improving engineering standards, tools, and processes

What You BringExperience
  • Strong backend engineering experience, with Java as a core language
  • Proven experience as a Full Stack Engineer with exposure to frontend technologies (React preferred)
  • Experience building and maintaining distributed systems and enterprise SaaS applications
  • Background working on transaction-heavy or high-throughput systems
Technical Skills
  • Strong understanding of backend architecture, scalability, and performance optimization
  • Solid experience with API design and development (API-first mindset)
  • Experience integrating with external partners, APIs, or third-party systems
  • Familiarity with modern frontend frameworks (React preferred)
Ways of Working
  • Strong problem-solving skills and attention to detail
  • Ability to work independently while collaborating effectively across teams
  • Comfortable working in a fast-paced, high-growth environment
  • Ownership mindset with a focus on delivering high-quality, scalable solutions

Nice to Have
  • Experience in fintech or payments systems
  • Familiarity with cloud platforms (AWS, GCP, or similar)
  • Experience with microservices architecture
  • Understanding of security and compliance considerations in financial systems

Why Join Veem?
  • Impact: Build systems that power global payments for businesses worldwide
  • Scale: Work on high-throughput, transaction-heavy systems with real-world complexity
  • Ownership: Contribute to core architecture and product decisions
  • Growth: Join a fast-growing fintech company at the forefront of embedded finance
  • Collaboration: Work with talented, cross-functional teams in a supportive environment

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