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Jr Developer Jobs in Whitby, ON (NOW HIRING)

YO AI Labs

Frontend Developer - Remote

Toronto, ON · Remote

$80 - $120/hr

Senior Software Engineer Job Type: Contractor (~15 hours/week) Location: Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training project by creating ...

ArcelorMittal

AI Developer

Concord, ON · On-site

AI Developer Location: Oxford County, ON Vacancy: This posting is for a new position Join Our Team and Be Part of Something Groundbreaking! Are you ready to take your career to the next level? Our ...

AssistIQ

Senior Software Developer

Toronto, ON · On-site

As a Senior Software Developer, you will be responsible for designing, developing and managing the cloud based services that power the AssistIQ platform. We're excited by candidates who enjoy and are ...

AssistIQ

Senior Software Developer

Toronto, ON · Remote

As a Senior Software Developer, you will be responsible for designing, developing and managing the cloud based services that power the AssistIQ platform. We're excited by candidates who enjoy and are ...

Clio

Software Developer (Toronto)

Toronto, ON · Hybrid

CA$112K - CA$151K/yr

We are seeking a Software Developer to join our Engineering team at our Toronto Hub. As part of our hybrid model, all hub-based team members are expected to work from the office at least twice per ...

Fintros

React Developer

Toronto, ON · On-site +1

Our engineering stack is pretty world-class. We have a well-documented micro-architecture service written in either Python (Flask) or Rails API using GraphQL. Our front-end consumes the GQL endpoints ...

Scotiabank

Java Developer

Toronto, ON · On-site

Commercial Banking Engineering is seeking a skilled Java Developer with extensive experience in Java, Struts, SQL, REST APIs, SOAP services, and other backend Java technologies. The ideal candidate ...

Alquemy

Full Stack Developer

Toronto, ON

Full Stack Developer About the role: We are seeking a Full Stack Developer to design, develop, test, deploy, and support software solutions throughout the full software development lifecycle. You ...

Fidelity International

Software Developer

Toronto, ON · On-site +1

We are looking for a full-stack Software Developer who will take a key role on our team. The ideal candidate must have knowledge in all stages of software development and seamlessly move between ...

Financeit

Developer 2

Toronto, ON · On-site +1

CA$100K - CA$115K/yr

Our Developers value continuous learning and development, enjoy cross-functional collaboration, and of course, hold the quality of their code to a high standard. Ideally, you have experience with our ...

Financeit

Developer 2

Toronto, ON · On-site

CA$100K - CA$115K/yr

Our Developers value continuous learning and development, enjoy cross-functional collaboration, and of course, hold the quality of their code to a high standard. Ideally, you have experience with our ...

Cority Software

Sr. Software Developer

Toronto, ON · On-site

Software Developer Technology · Toronto, Ontario POSITION DESCRIPTION POSITION: Software Developer REPORTS TO: Manager, Software Engineering Cority is the global enterprise EHS software provider ...

Wood Plc

Radiation Protection Specialist

Toronto, ON · On-site

Overseeing Jr and Sr RP technicians and providing guidance on work tasks. * Ensuring compliance ... Bachelor's degree in nuclear engineering, radiation science or health physics (or related field ...

Cority Software

Sr. Software Developer

Toronto, ON · On-site

Software Developer Technology · Toronto, Ontario POSITION DESCRIPTION POSITION: Software Developer REPORTS TO: Manager, Software Engineering Cority is the global enterprise EHS software provider ...

Wood Plc

Radiation Protection Specialist

Port Hope, ON · On-site

Overseeing Jr and Sr RP technicians and providing guidance on work tasks. * Ensuring compliance ... Bachelor's degree in nuclear engineering, radiation science or health physics (or related field ...

Wood Plc

Radiation Protection Specialist

Oshawa, ON · On-site

Overseeing Jr and Sr RP technicians and providing guidance on work tasks. * Ensuring compliance ... Bachelor's degree in nuclear engineering, radiation science or health physics (or related field ...

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Showing results 41-60

All JobsJr Developer JobsJr Developer Jobs in Whitby, ON

Jr Developer information

What is a jr developer?

Jr Developers, or Junior Developers, are entry-level professionals in the software development field. They typically have less experience than mid-level or senior developers and are responsible for writing, testing, and maintaining code under the guidance of more experienced team members. Jr Developers often work on smaller tasks, bug fixes, or simple features, and are expected to learn and grow their technical skills through mentorship and hands-on experience. Their role is essential for building a solid foundation in software development and contributing to the success of development projects.

What are the key skills and qualifications needed to thrive as a jr developer?

To thrive as a Jr Developer, you need a foundational understanding of programming languages (such as JavaScript, Python, or Java), basic software development principles, and often a relevant degree or coding bootcamp certification. Familiarity with version control systems like Git, IDEs, and workflow tools like Jira or Trello is typically required. Strong problem-solving skills, effective communication, and eagerness to learn help Jr Developers stand out in the workplace. These abilities are crucial for efficiently contributing to team projects, adapting to new technologies, and growing within a dynamic development environment.

What are some common challenges a jr developer might face when joining a new team, and how can they overcome them?

As a Jr Developer, one of the most common challenges is adapting to unfamiliar codebases and workflows. It can be daunting to understand existing projects and navigate team-specific tools and processes. To overcome this, Jr Developers should proactively seek help from team members, take thorough notes, and dedicate time to reviewing documentation and code. Embracing code reviews and asking questions will not only accelerate learning but also help build relationships within the team.

What is the difference between Jr Developer vs Junior Software Engineer?

AspectJr DeveloperJunior Software Engineer
Required CredentialsTypically an associate degree or coding bootcamp certificationUsually a bachelor's degree in computer science or related field
Work EnvironmentEntry-level, supervised tasks, learning-focusedSimilar entry-level environment, often with more complex project involvement
Employer & Industry UsageCommon in tech companies, startups, and IT departmentsUsed interchangeably in many companies, especially in software development teams
Search & Comparison IntentYes, often compared for entry-level rolesYes, often searched as a more formal or technical title

While both roles are entry-level software development positions, a Jr Developer often emphasizes basic coding tasks and learning, whereas a Junior Software Engineer may involve more structured engineering responsibilities. The titles are frequently used interchangeably, but understanding the specific job description can clarify expectations.

How hard is it to get a junior developer job?

Securing a junior developer position typically requires foundational programming skills, a portfolio of projects, and familiarity with relevant tools like Git and common programming languages. Entry-level roles are often competitive, but candidates with relevant internships, certifications, or coding bootcamp experience have better chances of being hired.

How to get hired as a junior developer?

To get hired as a junior developer, build a strong foundation in programming languages like JavaScript, Python, or Java, and create a portfolio of projects to demonstrate your skills. Gaining experience through internships, coding bootcamps, or contributing to open-source projects can improve your chances, along with obtaining relevant certifications and preparing for technical interviews.

What cities near Whitby, ON are hiring for Jr Developer jobs?

Cities near Whitby, ON with the most Jr Developer job openings:

Jr Developer jobs near you
Infographic showing various Jr Developer job openings in Whitby, ON as of August 2026, with employment types broken down into 83% Full Time, 3% Part Time, and 14% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution.

Frontend Developer - Remote

YO AI Labs

Toronto, ON • Remote

$80 - $120/hr

Full-time

Posted 11 days ago

Job description

Senior Software Engineer

Job Type: Contractor (~15 hours/week)
Location: Remote

Job Summary

We are seeking experienced Senior Software Engineers to support an AI training project by creating reinforcement learning environments that evaluate AI models on complex software engineering tasks using Model Context Protocol (MCP) tools.

You will design reproducible environments, deterministic verification, and reference solutions for tasks such as bug fixing, feature implementation, codebase refactoring, and performance optimization. No prior AI experience is required.

Key Responsibilities
  • Create reinforcement learning environments for software engineering tasks.
  • Design tasks involving bug fixing, feature development, refactoring, and performance optimization.
  • Build deterministic verification systems and golden reference solutions.
  • Evaluate AI agents' ability to reason through complex codebases and use MCP tools effectively.
  • Develop realistic, reproducible software engineering scenarios.
  • Ensure tasks accurately measure coding ability, problem-solving, and tool usage.
  • Document solutions and provide clear technical feedback.
Required Skills
  • Strong proficiency in Python 3, Java, Rust, C++, or TypeScript.
  • Strong understanding of algorithms and data structures.
  • Experience with bug fixing and debugging complex software issues.
  • Proven experience in feature implementation and codebase refactoring.
  • Strong knowledge of performance optimization and tuning.
  • Excellent written and verbal communication.
  • Strong attention to detail.
Preferred Qualifications
  • Experience working with large-scale or distributed codebases.
  • Familiarity with AI/ML systems is a plus but not required.
  • Experience with rigorous code reviews and software engineering best practices.
  • Experience working effectively in remote or cross-functional teams.
Hiring Process
  1. Submit an application and screening questions.
  2. Complete an AI interview (~30 minutes).
  3. Complete a technical assessment, if required.
  4. Hiring Manager review.
Compensation

Compensation is output-based, with payment provided per task that meets project specifications. Minimum weekly submission requirements may apply.

Availability

Selected experts should be prepared to begin their first tasks within 24–48 hours of completing onboarding.