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Assistant Software Engineer Jobs in Ontario (NOW HIRING)

AltaML

Intermediate Software Engineer

Toronto, ON · On-site

CA$90K - CA$110K/yr

Daily, hands-on comfort with an AI coding assistant (Claude Code or equivalent) as a core part of ... software engineering, product development, and machine learning fields. You will be able to ...

AltaML

Senior Software Engineer

Toronto, ON · On-site

CA$130K - CA$150K/yr

Role Summary The Senior Software Engineer leads implementation of complex features and epics, owns ... These tools assist our recruitment team but do not replace human judgment. Final hiring decisions ...

PointClickCare

Senior Software Engineer

Mississauga, ON · On-site

Senior Software Engineer What Your Day-to-day Will Look Like * Identify, prioritize and execute ... BSc/BA in Computer Science or a related degree Generative AI Code Assistants Use of Generative AI ...

PointClickCare

Senior Software Engineer

Mississauga, ON · Hybrid

CA$142K - CA$158K/yr

Senior Software Engineer What your day-to-day will look like: Identify, prioritize and execute ... These tools assist our recruitment team but do not replace human judgment. Final hiring decisions ...

fgf brands

Senior AI Software Engineer We're a naan traditional company... We are seeking a Senior AI software ... These tools may assist in screening, assessing, or selecting applicants. AI tools are used to ...

Td

Software Engineer II

Toronto, ON

CA$81K - CA$115K/yr

... * Assist in the development / maintenance of comprehensive processes for prevention of issues and ... Adhere to enterprise frameworks or methodologies that relate to software engineering activities

HRB

Senior or Principal Software Engineer(s)

Toronto, ON · On-site

Senior or Principal Software Engineer(s) Principal Engineer As a Principal Engineer, you will be a ... Mentor colleagues to help them grow and share your insights * Assist with resource planning, hiring ...

New

Td

Associate Software Engineer

Toronto, ON · On-site

CA$59K - CA$84K/yr

Develop new solutions as required for engineering programs and projects within assigned area ... * Assist in the development / maintenance of comprehensive processes for prevention of issues and ...

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Assistant Software Engineer information

What are the key skills and qualifications needed to thrive as an assistant software engineer?

To thrive as an Assistant Software Engineer, you need a solid understanding of programming languages (such as Java, Python, or C++), software development fundamentals, and typically a bachelor's degree in computer science or a related field. Familiarity with version control systems like Git, basic debugging tools, and common development frameworks is important. Strong problem-solving abilities, collaboration, and effective communication help you work efficiently within teams and adapt to evolving project requirements. These skills and qualities are essential for delivering quality code, learning quickly, and contributing to successful software projects.

What are some common challenges faced by assistant software engineers when joining a new development team?

Assistant Software Engineers often encounter challenges such as adapting to unfamiliar codebases, learning new technologies or frameworks used by the team, and understanding the team's workflow and communication practices. It's common to spend initial weeks focusing on onboarding tasks, shadowing experienced developers, and gradually taking on more complex assignments. Collaboration with senior engineers is key, as they provide guidance and feedback to help you grow technically and integrate smoothly into the team's processes.

What is the difference between Assistant Software Engineer vs Software Engineer?

AspectAssistant Software EngineerSoftware Engineer
Required CredentialsBachelor's degree in CS or related field; some internshipsBachelor's or higher; more experience preferred
Work EnvironmentEntry-level, supervised tasks, learning-focusedFull responsibility for projects, independent problem-solving
Employer & Industry UsageCommon in tech companies, startups, IT departmentsStandard role across tech, finance, healthcare, and more

The main difference is experience and responsibility. Assistant Software Engineers are entry-level, focusing on learning and supporting tasks, while Software Engineers handle full project development independently. The roles often overlap in credentials and work environment, but the Software Engineer position involves greater autonomy and technical expertise.

Is 25 too late to become an assistant software engineer?

Age is not a barrier to becoming an assistant software engineer; many professionals start or transition into tech careers at 25 or later. Success depends on acquiring relevant skills such as programming languages, understanding software development processes, and gaining practical experience through projects or certifications.

What is an assistant software engineer?

An assistant software engineer is an entry-level or junior role responsible for supporting software development tasks such as coding, testing, and debugging under the supervision of senior engineers. They often work with programming languages like Java, Python, or C++ and may need foundational knowledge of software development tools and methodologies.

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

The most popular types of Software Engineer jobs in Ontario are:

What are popular job titles related to Assistant Software Engineer jobs in Ontario?

For Assistant Software Engineer jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Assistant Software Engineer jobs in Ontario look for?

The top searched job categories for Assistant Software Engineer jobs in Ontario are:

What cities in Ontario are hiring for Assistant Software Engineer jobs?

Cities in Ontario with the most Assistant Software Engineer job openings:

Assistant Software Engineer jobs near you
Infographic showing various Assistant Software Engineer job openings in Ontario as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 69% Full Time, 17% Part Time, and 12% Contract. Highlights an 84% Physical, 3% Hybrid, and 13% Remote job distribution.

Intermediate Software Engineer

Toronto, ON • On-site

AltaML
See more jobs at AltaMLexternal

CA$90K - CA$110K/yr

Full-time

PTO

Re-posted 28 days ago

Job description

About Us:

AltaML is an applied artificial intelligence company, building and deploying solutions for organizations where the problems are real and the stakes are high, across public sector, construction, energy, and finance.
We believe in making small bets, failing fast, and being better together. We are on the lookout for creative problem-solvers, out-of-the-box thinkers who strive to solve big problems alongside clients, and early tech adopters driven to achieve success.

We don't hire for fit; we hire to add. We are looking for people who play by our core values of being: Agile, Gritty, Humble, and Happy. If you're passionate about AI/ML, thrive in a dynamic environment, and want to work with a diverse team of wickedly smart people, we want to hear from you!


Role Summary

The Intermediate Software Engineer independently owns and delivers well-defined, small-to-medium complexity user stories end to end. You work AI-first by default - using Claude Code and AltaML's shared skills library as your everyday workflow, not a novelty - and you're building the judgment to take on increasingly novel problems without close supervision.

What You'll Do:

Feature Implementation & Bug Fixes (~65%)

  • Serve as the main contributor for small-to-medium complexity stories, including work that introduces patterns new to AltaML/AltaForge.

  • Use Claude Code and AltaML's shared CLAUDE.md/skills library as your default workflow for design, implementation, and review - not something you reach for occasionally.

Testing & Documentation (~15%)

  • Write comprehensive automated tests and clear documentation for novel code, ensuring long-term stability.

Code Review Participation (~10%)

  • Give constructive feedback that measurably improves the quality of peers' contributions.

Learning & Collaboration (~10%)

  • Build strong fluency in AltaML/AltaForge libraries and platforms and make sound technical choices independently.

What You Bring:

  • 2-4 years of professional software engineering experience.

  • Daily, hands-on comfort with an AI coding assistant (Claude Code or equivalent) as a core part of how you work - or you pick one up fast.

  • Strong fundamentals in testing, Git, and at least one of Python, TypeScript, or C#.

  • Experience with a cloud platform (Azure, AWS, or GCP) is a plus.

  • Familiarity with LLM-based application development (LangChain, vector databases, LLM APIs) is a plus.

Nice to Have's:

  • Experience contributing to a shared component or config library.

  • Exposure to agentic workflows or GenAI product development.

What Success Looks Like

  • Independent Feature Velocity: Consistently owns and delivers small-to-medium complexity stories end to end with a fast, predictable cycle time - keeping delivery cost per story down.

  • AI-Accelerated Delivery: Visible, everyday use of AI-first workflows that meaningfully compresses cycle time - the weeks-to-days, days-to-hours shift we expect at every level.

  • Reusable Contribution: Regularly contributes novel code patterns or components that become candidates for shared libraries or AltaForge - supporting the AltaForge Clients and Same-Agent-Across-Clients north stars.

  • Technical Autonomy: Resolves the large majority of technical blockers independently, without routinely escalating to senior engineers.

  • Peer Quality Enhancement: Code review feedback that noticeably improves the quality of peers' work.

$90,000 - $110,000 a year
Responsible AI (RAI)
AltaML employees, contractors, and associates must be trained and well-versed in the importance of Responsible AI and empowered to enact RAI principles by developing and deploying AI solutions. They should also be empowered to raise and escalate RAI concerns as required.
 
AltaML is responsible for elevating public discourse and awareness of AI through open, transparent communications with the broader public.
 
Equal Opportunities
AltaML is dedicated to fostering a safe, diverse, and inclusive workplace as an equal-opportunity employer. We welcome applications from qualified individuals of all backgrounds, encompassing ethnicity, religion, disability status, gender identity, sexual orientation, family status, age, nationality, and educational backgrounds. If you are invited for an interview and require accommodations during the interview process, please don't hesitate to let us know.
 
AltaML acknowledges that its head office is located on Treaty 6 territory, and respects the histories, languages, and cultures of First Nations, Metis, Inuit, and all First Peoples of Canada, whose presence continues to enrich our vibrant community.
 
We Look for A-Players Who:
- Express our core values
- Are hungry for knowledge
- Want to learn new skills
- Are respectful
- Collaborate with others across the whole company
- Share knowledge with coworkers
- Educate and promote AI and ML concepts both internally and externally
- Have a high work ethic and are self-motivated
 
 
Our Perks:
Uncapped Vacation - For all full time, permanent employees. Seriously, take the time you need - when you need it.
Make an Impact - Witness the impact your work contribution has on the success of our company.
Working with PhD and Master Level Colleagues - Endless conversations around the latest in Machine Learning and Applied AI.
Competitive Benefits - For all full time, permanent employees.
Office as a Resource -  Hybrid work environment with state-of-the-art office spaces that ignite collaboration.
Big Slack Energy - IYKYK.
 
 
Our Culture:
You will be working in a high-paced environment focused on creating unique AI solutions to problems across multiple industries to generate impactful value. You will be working at a company with employees who have multiple years of industrial and academic experience in data science, software engineering, product development, and machine learning fields.
 
You will be able to experience a collaborative company culture, which means we believe in working hard, getting the job done, and enjoying the group social on Fridays. You'll also get flexibility in where you work, what hours you work, how much vacation you take, and what you wear. We expect hard work but respect work/life balance.
 
 
Core Values:
At AltaML, we are driven by our core values. We believe that by embodying these values in everything we do, we will exceed our customer's expectations while creating a positive and empowering work environment for our team members. We are dedicated to living our values and strive to make them the foundation for our success. 
 
Gritty - We are entrepreneurial, determined, and resilient, pushing through challenges to achieve our goals.
 
Agile - We make decisions based on "little bets" creating a safe space to take risks. We embrace an interactive process, allowing ideas to fail quickly or be scaled iteratively. Together, we continuously refine and improve our approach to reach the desired outcome. 
 
Humble - We listen to data, embrace new ideas, admit limitations and take ownership to solve problems. We constantly push ourselves to improve and excel.  
 
Happy - We ignite passion and purpose by fostering a dynamic work environment. We encourage tap dancing to work, common sense over rules, empowering team members to find joy in their contributions, and being your authentic self.
 
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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