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Intern Full Stack Software Developer Jobs in Toronto, ON

AltaML

Senior Full Stack Software Engineer

Toronto, ON · On-site

Degree or equivalent work experience in Computer Science, Software Development, or similar * 5+ years of experience as a full stack developer * Demonstrable, hands-on experience using Claude (Claude ...

Intuit

Staff Software Developer, Full Stack

Toronto, ON · Hybrid

CA$164K - CA$222K/yr

The ideal candidate is an experienced Software Developer who is experienced with Java, TypeScript, React and general full-stack development. This engineer should be full-stack and prepared to work at ...

Manulife

Senior Full Stack Software Engineer

Toronto, ON · Hybrid

CA$113K - CA$163K/yr

We're seeking a Senior Full-Stack Engineer with strong software engineering expertise and experience in derivatives trading systems. In this role, you'll design, develop, and support scalable, cloud ...

Citi

Full Stack Software Engineer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

We are hiring a Full Stack Engineer to design, build and maintain a critical Cash & Intraday ... Required Skills, Knowledge & Experience 4+ years of software hands-on engineering experience to ...

Citi

React Full Stack Developer

Mississauga, ON

Job Overview We are looking for experienced Full-Stack Software Engineers who are passionate about solving business problems through innovation and engineering practices. This role will be ...

Pelmorex

Software Developer - Full Stack

Oakville, ON · On-site

Full Stack Bonus (React Native): While this role is centered on backend services, practical ... engineering. DON'T MEET ALL THE REQUIREMENTS? DON'T WORRY... Not all applicants will have skills ...

Alquemy

Full Stack Developer

Toronto, ON · On-site

We are seeking a Full Stack Developer to design, develop, test, deploy, and support software solutions throughout the full software development lifecycle. You will collaborate with cross-functional ...

Turner Fleischer

Software Developer

Toronto, ON · On-site +1

CA$65K - CA$80K/yr

Full-stack software development experience, with the ability to contribute across front-end, ... DevOps, or equivalent. * Strong problem-solving, research, and communication skills, with the ...

Sync.com

Software Developer

Toronto, ON · On-site

Design, develop, and deploy full stack applications using Node.js, TypeScript, Angular, Vue.js, and PHP. * Architect and implement microservices and APIs, ensuring scalability and performance.

Perseus Group

Software Developer Intern

Markham, ON

CA$22.50 - CA$27.50/hr

The Software Developer Intern works in a Scrum team to build high-performing, resilient, and ... Hands-on experience in full-stack development: * HTML5, TypeScript, JavaScript, stylesheets ...

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Showing results 21-40

All JobsIntern Full Stack Software Developer JobsIntern Full Stack Software Developer Jobs in Toronto, ON

Intern Full Stack Software Developer information

See Toronto, ON salary details

$25.8K

$104.3K

$167.5K

How much do intern full stack software developer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for intern full stack software developer in Toronto, ON is $104,314.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,164.00 and $126,927.00 per year, depending on experience, location, and employer.

What is an intern full stack software developer?

An Intern Full Stack Software Developer is a trainee who assists in building and maintaining both front-end and back-end components of web applications. They work with various programming languages, frameworks, and databases to develop software solutions under the guidance of senior developers. Responsibilities may include writing code, debugging, testing, and collaborating with teams to improve functionality. This role provides hands-on experience in full-stack development and helps interns build practical skills for a career in software engineering.

What do intern full stack software developers do?

As an Intern Full Stack Software Developer, you can expect to work on a variety of tasks spanning both the front-end and back-end of web applications, such as building user interfaces, developing APIs, troubleshooting bugs, and writing automated tests. You may also assist with integrating new features or improving the performance of existing software under the guidance of experienced developers. Collaboration is a big part of the role, so you’ll likely participate in team meetings, code reviews, and brainstorming sessions. These experiences offer valuable exposure to real-world software development processes and best practices, setting a strong foundation for future career growth.

What skills and qualifications are needed to thrive as an intern full stack software developer?

To thrive as an Intern Full Stack Software Developer, you need a solid understanding of both front-end and back-end programming languages such as JavaScript, HTML/CSS, and one or more back-end frameworks, often supported by ongoing studies in computer science or a related field. Familiarity with version control systems like Git, database technologies, and popular development tools or cloud platforms is highly beneficial. Strong problem-solving abilities, communication skills, and a willingness to learn make candidates stand out in this position. These skills and qualities enable interns to effectively contribute to diverse technical projects, collaborate with team members, and adapt quickly to the fast-paced software development environment.

What are the most commonly searched types of Full Stack Software Developer jobs in Toronto, ON?

The most popular types of Full Stack Software Developer jobs in Toronto, ON are:

What are popular job titles related to Intern Full Stack Software Developer jobs in Toronto, ON?

For Intern Full Stack Software Developer jobs in Toronto, ON, the most frequently searched job titles are:

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The top searched job categories for Intern Full Stack Software Developer jobs in Toronto, ON are:

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Cities near Toronto, ON with the most Intern Full Stack Software Developer job openings:

Intern Full Stack Software Developer jobs near you
Infographic showing various Intern Full Stack Software Developer job openings in Toronto, ON as of August 2026, with employment types broken down into 89% Full Time, 8% Part Time, and 3% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $104,314 per year, or $50.2 per hour.

Senior Full Stack Software Engineer

AltaML

Toronto, ON • On-site

Full-time

Re-posted 14 days ago

Job description

We're looking for a Senior Full Stack Software Engineer who is passionate about building high-quality software in an AI-native way. Someone who treats Claude and the latest agentic coding tools as a core part of their craft, not a novelty. In this role, you will own technical delivery end-to-end, from shaping the architecture of ML-powered applications to leading implementation across cloud services, APIs, and modern front-end frameworks, with Claude Code, the Claude Agent SDK, and the Claude API woven into how you design, build, and ship.

You will act as the technical backbone of your project pod, balancing hands-on development with technical leadership, architectural decision-making, and client-facing collaboration. You'll lead epic-level solution design, mentor developers on how to get the most out of Claude in their day-to-day workflows, contribute to shared internal frameworks and skills/plugins, and help shape how we evaluate and deploy emerging AI engineering tooling.

You will thrive in this role if you are:

  • A builder at heart who leans on Claude Code to spin up prototypes in hours and scale them into production-grade systems with confidence.
  • Fluent in agentic development patterns. Writing good specs for Claude, structuring repos so AI agents can navigate them, reviewing AI-generated code critically, and knowing when to delegate versus when to hand-code.
  • A strong communicator who can translate between business requirements, technical realities, and what modern AI tooling actually makes feasible.
  • A decision-maker who brings clarity to ambiguous technical challenges and can evaluate when an LLM-in-the-loop is the right solution versus traditional software.
  • Excited by ML-enabled product development and eager to bridge software engineering with intelligent automation and agentic workflows.
What You'll Do:
  • Reduced Project Risk: Technical risks on projects are significantly reduced through proactive ownership of epic-level technical design, execution, and cross-team dependency resolution accelerated by effective use of Claude for research, code review, and rapid exploration of design alternatives.
  • Improved Technical Decision-Making: The team makes better technology choices through thorough research, evaluation, and documentation of potential solutions, including informed decisions on when and how to apply Claude, MCP servers, and agentic tooling versus conventional approaches.
  • Stronger Client Confidence: Client and stakeholder confidence is increased by leading technical discovery sessions and acting as a technical SME during project discussions, including on the pragmatic use of LLMs and AI-assisted development in client deliverables.
  • Feature & Epic Implementation: Leads implementation for features spanning multiple user stories or services, using Claude Code and agent-driven workflows to accelerate delivery without sacrificing quality.
  • Architecture & Solution Design: Leads the architecture design for moderately complex solutions, often involving multiple services or systems, and chairs technical reviews including architecting LLM-powered features, agent tool integrations, and MCP server designs.
  • AI Engineering Leadership: Champions best practices for working with Claude across the pod, prompt design, skill and subagent creation, context management, MCP integrations, evaluation of AI-generated code, and secure / cost-aware usage of the Claude API.
  • Mentorship & Technical Leadership: Provides technical leadership within the pod, mediates code review disputes, contributes new features and skills to shared AltaML libraries, and assists in the hiring process by conducting technical interviews. Coordinates the work of other engineers and levels them up on modern AI-assisted development.
  • Client Engagement & Discovery: Leads technical discovery sessions with clients to clarify requirements, define technical scope, and identify where Claude-powered features or agentic workflows unlock real product value.
  • Testing & Quality Strategy: Implements higher-level testing strategies, including integration and end-to-end tests for deployed solutions, plus evaluation harnesses for LLM-powered features (regression tests for prompts, agent behaviours, and tool use).
What You Bring:
  • Degree or equivalent work experience in Computer Science, Software Development, or similar
  • 5+ years of experience as a full stack developer
  • Demonstrable, hands-on experience using Claude (Claude Code, claude.ai, or the Claude API) as a daily driver for real software engineering work, not just casual chat use
  • Proven skills at taking ideas from conception to production, including shipping features that are partly or fully built with AI-assisted workflows
  • Strong working experience with Cloud Services (ideally Azure)
  • Strong working experience in a modern object-oriented language
  • Strong working experience writing clean, readable, and easily maintainable code, and a clear point of view on reviewing and hardening AI-generated code
  • Experience with Unit and API testing (e.g., xUnit, Postman, or others)
  • Experience working in an agile environment
  • Experience with Docker
  • Proficiency with Version Control systems (VCS), including working effectively with AI agents in a git-based workflow
$130,000 - $150,000 a year
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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