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Contract Back End Developer Jobs in Toronto, ON (NOW HIRING)

NearSource

Senior JAVA Backend Developer

Toronto, ON · Remote

CA$80 - CA$90/hr

T4 Contract Rate: CAD $80 to $90 per Hour Role Summary NearSource is seeking a Senior Java Backend Developer to contribute to a large-scale cloud-native platform for a Fortune 500 product company.

ShyftLabs

Senior Backend Developer

Toronto, ON · Hybrid

CA$100K - CA$140K/yr

The ideal candidate combines strong backend and frontend engineering skills with experience in ... Design and maintain API contracts, data models, and integration patterns to ensure consistency and ...

Worthland

Senior Backend Engineer (Web3)

Toronto, ON

CA$300K - CA$450K/yr

Work with on-chain data and interact with smart contracts. * Optimize blockchain transaction ... Collaborative, developer-focused work environment in a downtown office . * Inclusive and dynamic ...

Worthland

Senior Backend Engineer (Web3)

Toronto, ON · On-site

CA$300K - CA$450K/yr

Work with on-chain data and interact with smart contracts. * Optimize blockchain transaction ... Collaborative, developer-focused work environment in a downtown office . * Inclusive and dynamic ...

Chubb

Senior Backend Engineer

Toronto, ON

... endpoint - API contracts are first-class deliverables Apply structured OgmaLogger logging ... backend engineering experience delivering production services at meaningful scale TypeScript ...

Tucows Inc.

Senior Backend Engineer

Toronto, ON · Remote

CA$145K - CA$155K/yr

Design and maintain APIs, database schemas, integrations, and data contracts. * Improve system ... backend software engineering experience. * Experience providing technical direction while remaining ...

Tucows Domains

Senior Backend Engineer

Toronto, ON · Remote

CA$145K - CA$155K/yr

Design and maintain APIs, database schemas, integrations, and data contracts. * Improve system ... backend software engineering experience. * Experience providing technical direction while remaining ...

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All JobsContract Back End Developer JobsContract Back End Developer Jobs in Toronto, ON

Contract Back End Developer information

What is the difference between Contract Back End Developer vs Contract Front End Developer?

AspectContract Back End DeveloperContract Front End Developer
Required SkillsServer-side languages (e.g., Java, Python), databases, API developmentHTML, CSS, JavaScript, UI frameworks
Work EnvironmentBackend systems, server management, database integrationClient-side interfaces, user experience design
Common CertificationsNone specific, but backend certifications (e.g., AWS, Oracle) are commonNone specific, but front end certifications (e.g., React, Angular) are common

Contract Back End Developers focus on server-side logic, databases, and API development, while Contract Front End Developers work on user interfaces and client-side functionality. Both roles require technical skills but differ in their focus areas within software development.

What are some common challenges faced by contract back end developers when integrating with existing systems?

Contract back end developers often encounter challenges such as limited documentation, legacy codebases, and varying technology stacks when integrating with existing systems. Navigating these complexities requires strong problem-solving skills and the ability to quickly understand unfamiliar architectures. Effective communication with internal teams is crucial to clarify requirements and ensure seamless integration, especially within tight project timelines. Adaptability and proactive collaboration can help overcome these hurdles and deliver robust solutions.

How much do contract back end developers get paid?

Contract back end developers typically earn between $40 and $150 per hour, depending on experience, location, and project complexity. Senior developers with specialized skills in languages like Java, Python, or Node.js tend to command higher rates, especially for short-term or high-demand projects.

What are the key skills and qualifications needed to thrive as a contract back end developer?

To thrive as a Contract Back End Developer, you need strong skills in server-side programming languages (such as Node.js, Python, or Java), database management, and API development, often supported by a relevant degree or equivalent experience. Familiarity with version control systems like Git, cloud platforms (e.g., AWS, Azure), and containerization tools such as Docker is typically required. Excellent problem-solving, communication, and time management skills help you collaborate effectively and deliver quality work on tight schedules. These skills ensure you can build scalable, reliable back end systems that meet client requirements and project deadlines.

What is a contract back end developer?

Contract Back End Developers are software professionals who specialize in building and maintaining the server-side components of web applications on a contractual basis. They focus on databases, server logic, APIs, and integration with front-end systems to ensure smooth functionality and performance. Unlike full-time employees, contract developers are typically hired for specific projects or time frames, offering flexibility to both the developer and the employer. They often work with languages like Java, Python, Node.js, or Ruby and must be adept at collaborating with front-end teams and stakeholders.

Is a contract back end developer in demand?

Contract back end developers are in demand due to the ongoing need for software development, especially in industries adopting cloud computing and microservices architectures. Skills in programming languages like Java, Python, or Node.js, along with experience in APIs and databases, increase employability in this flexible work arrangement.

What are the most commonly searched types of Back End Developer jobs in Toronto, ON?

The most popular types of Back End Developer jobs in Toronto, ON are:

What are popular job titles related to Contract Back End Developer jobs in Toronto, ON?

For Contract Back End Developer jobs in Toronto, ON, the most frequently searched job titles are:

What job categories do people searching Contract Back End Developer jobs in Toronto, ON look for?

The top searched job categories for Contract Back End Developer jobs in Toronto, ON are:

Contract Back End Developer jobs near you
Infographic showing various Contract Back End Developer job openings in Toronto, ON as of August 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 22% In-person, and 78% Remote job distribution.

Senior JAVA Backend Developer

NearSource

Toronto, ON • Remote

CA$80 - CA$90/hr

Full-time

Re-posted 29 days ago

Job description

Job Title: Senior Java Backend Developer
Location: 100% Remote, Canada
Experience: 7 to 10 Years
Employment Type: T4 Contract
Rate: CAD $80 to $90 per Hour

Role Summary
NearSource is seeking a Senior Java Backend Developer to contribute to a large-scale cloud-native platform for a Fortune 500 product company. This role requires strong expertise in backend engineering, event-driven architectures, distributed systems, and real-time data streaming. The successful candidate will be expected to quickly onboard and deliver value within the first weeks of engagement while collaborating with global engineering teams.

Key Responsibilities

  • Design, develop, and maintain scalable backend services using Java or Go.
  • Architect and implement event-driven systems leveraging Apache Kafka and AWS streaming technologies.
  • Build and optimize high-throughput data processing pipelines and asynchronous messaging workflows.
  • Develop reliable distributed systems with strong focus on resiliency, scalability, and operational excellence.
  • Implement and maintain cloud-native solutions on AWS services including DynamoDB, MSK/Kinesis, ECS/EKS, IAM, and S3.
  • Design partitioning strategies, retention policies, access controls, and consumer architectures for Kafka-based platforms.
  • Drive implementation of data streaming solutions supporting CDC patterns and event processing requirements.
  • Apply distributed systems best practices including idempotency, retry mechanisms, eventual consistency, and fault tolerance.
  • Collaborate with cross-functional engineering teams to deliver production-ready software solutions.
  • Troubleshoot, optimize, and improve platform performance, scalability, and reliability.
  • Contribute effectively within an existing project environment and achieve rapid productivity during onboarding.

Must-Have Skills

  • 7 to 10 years of professional software engineering experience.
  • Strong backend development experience using Java with Spring Boot or Go with modern service frameworks.
  • Hands-on production experience with Apache Kafka, including:
    • Producer and consumer APIs
    • Partition design
    • Retention management
    • ACL configuration
    • Kafka Admin Client
  • Hands-on production experience with AWS services, including:
    • DynamoDB
    • MSK or Kinesis
    • ECS or EKS
    • IAM
    • S3
  • Strong experience building event-driven architectures and streaming platforms.
  • Experience with Change Data Capture (CDC) patterns and asynchronous message processing.
  • Strong understanding of delivery guarantees, including exactly-once and at-least-once processing semantics.
  • Solid knowledge of distributed systems concepts including idempotency, retries with backoff, and eventual consistency.
  • Proven ability to join active projects and contribute effectively within the first one to two weeks.

Nice-to-Have Skills

  • Experience with Apache Flink, Flink SQL, or Kafka Streams.
  • Experience building stream consumers using AWS Kinesis Client Library (KCL).
  • Experience implementing Outbox patterns, Debezium, or similar CDC frameworks.
  • Experience with DynamoDB single-table design.
  • Familiarity with GitOps deployment methodologies using ArgoCD or Flux.
  • Familiarity with Apache Iceberg, Apache Paimon, or other open table formats.

Apply now, or share your resume with salary expectations at careers@nearsource.ca.

Thank you for considering a career with us! Once you submit your application, our Talent Acquisition team will review your resume thoroughly. If there's a strong match, we'll reach out to discuss your experience, role details, benefits, compensation, and next steps. While we strive for transparency, we may not be able to respond to every applicant due to high volume, but we genuinely appreciate your time and interest.

About NearSource

NearSource Technologies is a trusted partner for future-ready software consulting, enabling Fortune 500 enterprises to accelerate digital transformation. Our global engineering teams build and deploy impactful technology for some of the world's most admired brands, working directly on long-term client initiatives.

Equal Opportunity Employer

NearSource is an equal opportunity employer committed to fostering an inclusive and respectful environment. We celebrate diversity and do not discriminate based on race, gender, religion, sexual orientation, age, disability, or background. Innovation thrives when everyone feels empowered to contribute.