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Junior Computer Jobs in Ontario (NOW HIRING)

Arcadion

Junior AI Developer

Ottawa, ON · On-site

We are looking for a Junior AI Developer to join our in-house team at our Ottawa headquarters. This ... Degree or diploma in Computer Science, AI/ML, Data Science, Software Engineering, or related ...

Magna

Junior Full Stack Developer Coop

Milton, ON

The [Junior Full Stack Developer - coop] role is to help plan, design, develop, test, launch, and ... Pursuit of Bachelor's degree or Community College diploma in Computer Studies, Computer Science ...

SIMMS

Junior Sales Representative

Toronto, ON

Junior Sales Representative SIMMS - Toronto, ON SIMMS is an exciting medical imaging software ... computer and applications user We thank all applicants for their interest in SIMMS, however, only ...

Quadient

Junior Account Executive

Markham, ON

Junior Account Executive - (Hybrid - Tues. & Thurs. onsite - Markham, ON) As a Junior Account ... 800.00, CAD + commissions annually. This role offers On-Target Earnings (OTE) of up to $75,000 ...

Part Time CFO Services

Junior Accountant

Cobourg, ON · On-site

$50K - $60K/yr

The Junior Financial Analyst position will be responsible for performing day-to-day processing of ... Computer skills including the ability to operate computerized accounting, spreadsheet and word ...

Part Time CFO

Junior Accountant

Cobourg, ON · On-site

CA$50K - CA$60K/yr

The Junior Financial Analyst position will be responsible for performing day-to-day processing of ... Computer skills including the ability to operate computerized accounting, spreadsheet and word ...

HF Interiors Inc.

Be Seen First

Junior Project and Site Coordinator

Toronto, ON · On-site

CA$50K - CA$60K/yr

The main responsibilities of a Junior Project and Site Coordinator include working with team ... Strong overall computer skills and the ability to learn new software and systems quickly.

ALS

Junior Machine Learning Engineer

Waterloo, ON · On-site

CA$80K - CA$95K/yr

As a Junior Machine Learning Engineer on the Global AI Team, you will support the design ... Degree or diploma in Computer Science, Data Science, Software Engineering, Machine Learning ...

FCT

Junior Title Officer

Oakville, ON

As a Junior Title Officer, HERE'S HOW YOU'LL CONTRIBUTE: * Prepare/review documents as required ... Advanced computer skills in MS Office products (Word, Excel) Our core hours of operation are 8:30 a ...

FCT

Junior Title Officer

Oakville, ON · On-site

As a Junior Title Officer, HERE'S HOW YOU'LL CONTRIBUTE: * Prepare/review documents as required ... Advanced computer skills in MS Office products (Word, Excel) Our core hours of operation are 8:30 a ...

Sedgwick

Junior Account Manager

Toronto, ON

CA$70K - CA$75K/yr

Junior Account Manager PRIMARY PURPOSE : To support the Client Services discipline nationally in ... Salary Range : $70,000-$75,000 CAD Annual This position is full-time and compensation is salaried.

York Risk Services

Junior Account Manager

Toronto, ON · On-site

CA$70K - CA$75K/yr

Junior Account Manager PRIMARY PURPOSE : To support the Client Services discipline nationally in ... Salary Range : $70,000-$75,000 CAD Annual This position is full-time and compensation is salaried.

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Showing results 21-40

All JobsComputer JobsJunior Computer JobsJunior Computer Jobs in Ontario

Junior Computer information

What does a junior computer do?

A Junior Computer typically refers to an entry-level professional who works with computer systems, either in technical support, programming, or IT administration. Their responsibilities often include troubleshooting hardware and software issues, assisting with system maintenance, and supporting senior team members. Junior Computers may also help with data entry, basic coding tasks, and updating documentation. This role provides foundational experience in the IT field, allowing individuals to develop technical skills and advance to more senior positions over time.

What are the key skills and qualifications needed to thrive as a junior computer technician?

To thrive as a Junior Computer Technician, you need a solid understanding of computer hardware, operating systems, and basic networking, often supported by a relevant associate degree or industry certifications like CompTIA A+. Familiarity with diagnostic tools, remote support software, and ticketing systems is typically required. Strong problem-solving skills, attention to detail, and effective communication help you stand out in assisting users and collaborating with team members. These skills are essential for efficient troubleshooting, delivering quality technical support, and ensuring smooth IT operations.

What are some common challenges faced by junior computer technicians when transitioning from training to full-time work?

Junior Computer Technicians often find the transition from training to the workplace challenging due to the fast-paced environment and the need to troubleshoot a wide range of hardware and software issues independently. They may also encounter unfamiliar systems or be required to support multiple users simultaneously, which tests their time management and problem-solving skills. However, most teams encourage collaboration and provide mentorship, allowing juniors to learn on the job and gradually take on more complex responsibilities.

What is the difference between Junior Computer vs Junior Network Technician?

AspectJunior ComputerJunior Network Technician
Required CredentialsHigh school diploma or equivalent; basic IT certifications (e.g., CompTIA A+)High school diploma; certifications like CompTIA Network+ or Cisco CCNA
Work EnvironmentOffice, retail, or support centers; hardware and software troubleshootingNetwork labs, data centers, or client sites; network setup and maintenance
Industry UsageIT support, hardware repair, software installationNetwork infrastructure, security, and connectivity

Junior Computer roles focus on hardware and software support, while Junior Network Technicians specialize in network systems and connectivity. Both roles require foundational IT certifications and often work in similar environments, but their core responsibilities differ in scope and technical focus.

What are the most commonly searched types of Computer jobs in Ontario?

The most popular types of Computer jobs in Ontario are:

Junior Computer jobs near you
Infographic showing various Junior Computer job openings in Ontario as of August 2026, with employment types broken down into 1% As Needed, 76% Full Time, 20% Part Time, 2% Contract, and 1% Nights. Highlights an 76% Physical, 2% Hybrid, and 22% Remote job distribution.

Junior AI Developer

Arcadion

Ottawa, ON • On-site

Full-time

Posted 12 days ago

Job description

About Arcadion

Arcadion is a leading full-stack enterprise IT services and AI development firm headquartered in Ottawa. We specialize in delivering cutting-edge solutions across cloud infrastructure, cybersecurity, digital transformation, and AI automation. Our AI division is at the forefront of building intelligent systems, enterprise AI agents, and next-generation tools using advanced language models (LLMs), RAG pipelines, and machine learning technologies.

We are looking for a Junior AI Developer to join our in-house team at our Ottawa headquarters. This is a full-time, on-site position offering a unique opportunity to work directly with senior engineers and the Director of AI on innovative projects that span across sectors like healthcare, finance, construction, robotics, and legal tech.


Role Overview

As a Junior AI Developer, you’ll support the design, development, testing, and deployment of AI and machine learning applications. You will contribute to real-world use cases involving custom LLM integrations, automation agents, document intelligence systems, and AI-enhanced enterprise tools.

Key Responsibilities

  • Work closely with the Director of AI on the development of AI agents, copilots, and intelligent automation tools
  • Assist in building, testing, and fine-tuning large language models and retrieval-augmented generation (RAG) pipelines
  • Contribute to prompt engineering and integration of LLMs into web-based or API-driven applications
  • Support data preprocessing, embedding, and vector database structuring (e.g., Pinecone, Weaviate)
  • Write clean, testable Python code and support REST API integrations
  • Participate in QA testing, performance benchmarking, and debugging AI system behavior
  • Stay updated on emerging tools, frameworks, and trends in the AI ecosystem
  • Collaborate with cross-functional teams including DevOps, cloud engineers, and UI/UX designers

✅ Requirements

  • Degree or diploma in Computer Science, AI/ML, Data Science, Software Engineering, or related discipline
  • Foundational knowledge in machine learning and NLP principles
  • Proficiency in Python and familiarity with ML libraries like scikit-learn, PyTorch, or TensorFlow
  • Understanding of APIs, JSON, Git-based version control, and cloud fundamentals
  • Excellent problem-solving skills and attention to detail
  • Willingness to work on-site full-time in our Ottawa office (this is not a hybrid or remote role)

Bonus Skills (Assets)

  • Exposure to LLMs such as OpenAI, Claude, Mistral, or LLaMA
  • Experience with LangChain, Hugging Face Transformers, or similar frameworks
  • Basic experience with vector databases or embedding models
  • Familiarity with Azure, AWS, or GCP
  • Interest in chatbot development or knowledge-based search applications

What You’ll Gain

  • Direct mentorship from experienced AI architects and our Director of AI
  • Access to real-world enterprise projects and hands-on development with production-grade models
  • Growth path toward senior AI engineering or solution architecture roles
  • An innovative and supportive team environment inside one of Ottawa’s leading IT firms
  • Competitive compensation and performance-based opportunities

Apply Now

If you're ready to kickstart your career in AI and want to be part of a forward-thinking team building real-world applications, we’d love to meet you.