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

... contracts, backend, AI logic, and the executive-facing interface, with no expectation of a ... Programming Languages, Software Development, Software Development Life Cycle (SDLC), System ...

... contract basis. This is an existing vacancy supporting the delivery of innovative technology ... Design, develop, and maintain scalable backend applications using Python and modern software ...

As a Senior Android Developer , you'll build and own new product features for the Robinhood Wallet ... You will collaborate closely with client engineers, backend developers, product designers, and ...

New

Keep reading. ZPI, the developer of the industry leading Zarpac Performance Index (ZPI ... Design edge ↔ cloud contracts that align with our current backend model * Handle realworld ...

NET back end, owning features end to end - from the interface a client touches to the API that ... Design and evolve APIs - build reliable, well-documented REST APIs and data contracts that are ...

RQ00687 - Sr. Software Developer

Toronto, ON · Hybrid

CA$87.38 - CA$104.86/hr

RQ00687 - Sr. Software Developer 9+ month contract (188 business days) - possible extension ONSITE ... years working with backend data and BMC ITSM v9+ features. * 8+ years of experience mapping ...

Showing results 21-40

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 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:
Infographic showing various Contract Back End Developer job openings in Toronto, ON as of August 2026, with employment types broken down into 69% Full Time, 8% Part Time, and 23% Contract. Highlights an 23% In-person, 8% Hybrid, and 69% Remote job distribution.

RQ11329 - Sr. Software Developer - Back End

Source Code

Toronto, ON • On-site

CA$86.90 - CA$104.28/hr

Contractor

Posted 25 days ago


Job description

RQ11329 - Sr. Software Developer - Back End

5+ month contract (108 business days) - possible extension

ONSITE 5 days - 222 Jarvis St

Must Have:

  • 10+ years of experience as a designer and developer in the large-scale multi-client web applications
  • 10+ year of hands-on working experience of Java development with Oracle or SQL database
  • 5+ years of hands-on experience of RestAPI, RESTful WebServices
  • Knowledge of security gateways and protocols (JWT, Oauth2.0, SSL Certificates)'
  • Experience using Azure DevOps

Nice-to-have:

  • Public sector Experience

Responsibilities: 

  • Responsible for managing the interchange of data between the server and the users. 
  • Required to translate technical systems specifications into working, tested applications. 
  • This includes: developing detailed programming specifications writing and/or generating code compiling data-driven programs maintaining, and conducting unit tests 
  • Resolves and troubleshoots technical problems which arise during the use and operation of software packages, including technical assistance in implementation, conversion

General Skills: 

  • Experience in programming and analysis; specialized software package support at the specified experience level 
  • Ability to collaborate with IT Professionals throughout the Software Development Life Cycle Experience in structured methodologies for the development, design, implementation and maintenance of applications 
  • Experience in design, code, test, debug and document applications 
  • Experience in the use of object and/or third generation language development tools 
  • Experience in one or more programming languages 
  • Experience in application design, latest design patterns, deployment and troubleshooting 
  • Experience with relational and hierarchical database technologies 
  • Experience in the use of information retrieval packages using query languages 
  • Experience with one or more communications protocols 
  • Experience in structured methodologies for the design, development, implementation and maintenance of applications 
  • Experience eliciting and documenting information from diverse business area stakeholders and subject matter experts 
  • Excellent analytical, problem-solving and decision-making skills; verbal and written communication skills; interpersonal and negotiation skills 
  • A team player with a track record for meeting deadlines 
  • Back End Skills 
  • Knowledge and experience with developing all server-side logic, definition and maintenance of the central database, and ensure high performance and responsiveness to requests from the front-end. 
  • Knowledge and experience with front-end technologies 
  • Knowledge and experience to integrate the front-end elements into the application

Desirable Skills: 

  • Knowledge and experience with programming Internet-ready applications Knowledge and experience in rapid application development (RAD) methodologies 
  • Knowledge and understanding of Information Management principles, concepts, policies and practices 
  • Experience with middleware and gateways 
  • Experience reviewing, analyzing, and modifying product installation scripts including encoding, testing, debugging 
  • Ability to provide post-implementation support and resolve any post-implementation technical issues 
  • Experience conducting design walkthrough sessions with project team 
  • Knowledge and understanding of Accessibility for Ontarians with Disability Act (AODA) and related regulations and standards 
  • Ability to provide user and system documentation as required

AI Disclaimer: Source Code may use artificial intelligence (AI) tools to assist in certain aspects of its recruiting and business operations.

Note: The higher end of the range is intended for absolutely exceptional candidates who meet all must-have requirements and most or all nice-to-have qualifications. The client will evaluate candidates based on both rate expectations and overall skill set when shortlisting.

INCORPORATED RATE RANGE (7.25 billable hours per day)

  • $86.90/hr - $104.28/hr Inc.

T4 RATE RANGE (7.25 billable hours per day)

  • $69.52/hr - $83.42/hr T4