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Remote Senior Software Engineer Jobs in Toronto, ON

Senior Software Engineer Job Type: Contractor (~15 hrs a week) Location: Remote Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape ...

Senior Software Engineer Job Type: Contractor (~15 hrs a week) Location: Remote Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape ...

Senior Software Engineer Job Type: Contractor (~15 hrs a week) Location: Remote Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape ...

Senior Software Engineer Job Type: Contractor (~15 hrs a week) Location: Remote Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape ...

Senior Software Engineer Job Type: Contractor (~15 hrs a week) Location: Remote Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape ...

Senior Software Engineer Job Type: Contractor (~15 hrs a week) Location: Remote Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape ...

Senior Software Engineer Job Type: Contractor (~15 hrs a week) Location: Remote Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape ...

Senior Software Engineer Location: Mississauga, Ontario (Hybrid). 3x per week in office, 2x per week remote Function: Engineering ESSENTIAL DUTIES AND RESPONSIBILITIES: Full Stack Development

New

We are looking for a highly skilled Senior Software Developer to design, develop, and maintain ... This is a remote role for candidates in the US or Canada, focusing on cross-functional ...

Senior Software Engineer, Integrations

Toronto, ON ยท On-site +1

CA$120K - CA$140K/yr

... passionate Senior Software Engineer to step into a key role on our Software Engineering ... Remote friendly position with occasional office time as needed. Ability to work abroad for up to 2 ...

Sr Software Engineer

Whitby, ON ยท Remote

CA$136K - CA$159K/yr

... The Senior Software Engineer will play a key role in advancing the Content Acceleration team ... This is a remote position open to applicants authorized to work for any employer within Canada What ...

As a Senior Software Engineer , you will lead complex technical initiatives, make architectural decisions that balance short and long-term needs, and raise the bar for code quality and best practices ...

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Remote Senior Software Engineer information

What are the key skills and qualifications needed to thrive as a remote senior software engineer, and why are they important?

To thrive as a Remote Senior Software Engineer, you need deep expertise in software development, architecture, and problem-solving, typically supported by a degree in computer science and several years of professional programming experience. Proficiency with version control systems (like Git), cloud platforms (such as AWS or Azure), and familiarity with CI/CD pipelines and relevant certifications are highly valued. Excellent communication, self-motivation, and time management skills help you excel in remote, cross-functional teams. These skills ensure you can deliver high-quality solutions, collaborate effectively, and lead complex projects independently.

What does a remote senior software engineer do?

As a remote senior software engineer, your job is to code, test, and debug computer software applications for your employer. In this role, you may test the deployment of software within your network, ensure it functions properly on each operating system, choose which programming language to use, and help manage the development process. Senior software engineers frequently guide and review work from junior software engineers, determine how to translate business requirements into technical specifications, and provide input on hiring decisions relevant to the company's programming needs. Remote senior software engineers do all of this work from home or from a personal office. You use phones, email, text, and virtual office software to stay in touch with other employees.

What is a senior software engineer remote?

A senior software engineer job is a remote, high-level position that involves programming code and software. You work from home and telecommunicate with other IT support staff. A senior software engineer can work on various systems, but your duties are similar. Your responsibilities are to develop, test, and debug code. You may also build, update, or manage a software network. A software engineering professional often works on the entire development life cycle and must find and correct issues quickly and efficiently.

What does a remote senior software engineer do?

A Remote Senior Software Engineer designs, develops, and maintains complex software systems while working from a location outside of the traditional office. They often lead development teams, set technical direction, review code, and mentor junior engineers. Their responsibilities include collaborating with cross-functional teams, ensuring code quality, and implementing best practices in software development. Remote Senior Software Engineers use various communication and project management tools to stay connected with their teams and deliver high-quality software solutions efficiently.

What is the difference between Remote Senior Software Engineer vs Remote Software Developer?

AspectRemote Senior Software EngineerRemote Software Developer
Required CredentialsBachelor's degree in CS or related field, 5+ years experience, advanced coding skillsBachelor's degree or equivalent, 1-3 years experience, strong coding skills
Work EnvironmentCollaborates on complex projects, mentors junior staff, involved in architecture decisionsFocuses on coding, testing, and implementing features, less mentorship
Employer & Industry UsageTech companies, startups, enterprise software firmsStartups, tech firms, freelance projects

The Remote Senior Software Engineer typically has more experience, handles complex tasks, and mentors others, whereas the Remote Software Developer focuses on coding and implementing features with less leadership responsibility.

What are some common challenges faced by remote senior software engineers and how can they be addressed?

Remote Senior Software Engineers often face challenges such as maintaining effective communication across different time zones, ensuring strong collaboration with distributed teams, and staying aligned with project goals. Proactively scheduling regular check-ins, utilizing collaboration tools like Slack or Jira, and setting clear expectations can help overcome these hurdles. Additionally, building strong documentation habits and fostering relationships through virtual meetings can enhance teamwork and project success.
What are the most commonly searched types of Senior Software Engineer jobs in Toronto, ON? The most popular types of Senior Software Engineer jobs in Toronto, ON are:
What are popular job titles related to Remote Senior Software Engineer jobs in Toronto, ON? For Remote Senior Software Engineer jobs in Toronto, ON, the most frequently searched job titles are:
What job categories do people searching Remote Senior Software Engineer jobs in Toronto, ON look for? The top searched job categories for Remote Senior Software Engineer jobs in Toronto, ON are:
What cities near Toronto, ON are hiring for Remote Senior Software Engineer jobs? Cities near Toronto, ON with the most Remote Senior Software Engineer job openings:
Infographic showing various Remote Senior Software Engineer job openings in Toronto, ON as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% Remote job distribution.

Remote Senior Software Engineer

Micro1

Oakville, ON โ€ข Remote

Full-time

This job post hasย expired today.ย Applications are no longer accepted.


Job description

Senior Software Engineer
$50 - $100/hourpay
Required Skills
Python3
JAVA
Rust
Algorithms
Basics C++
Typescript
bug fixing
feature implementation
codebase refactoring
performance optimization
About micro1
micro1 is the leading AI data lab for training frontier models and evaluating AI agents. Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more. micro1 transforms that real-world expertise into high-quality training data, evaluations, and feedback loops that improve how AI systems learn, reason, and perform.

Our platform identifies and vets top talent through an AI recruiter, enabling high-quality expert contributions at scale. We aim to enable 1 billion people to do meaningful work by applying their expertise to AI. As our global expert network grows, micro1 is building the human intelligence layer for frontier AI.

Job Title: Senior Software Engineer


Job Type: Contractor (~15 hrs a week)


Location: Remote


Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required โ€” your domain knowledge is what matters.


As an expert you will be creating Reinforcement Learning Environments which test an AI modelโ€™s ability to solve complex software engineering problems using Model Context Protocol (MCP) tools. Tasks may involve fixing bugs, implementing features, refactoring code, or optimizing performance while requiring agents to discover and reason over information from real MCP servers. You will design reproducible environments, deterministic verification, and golden reference solutions that accurately measure both MCP tool use and software engineering ability.



Required Skills and Qualifications:

  1. Proficiency in C++, Python, JAVA, GoLang, Typescript, or Rust.
  2. Deep understanding of algorithms, data structures, and performance tuning.
  3. Demonstrated experience in debugging complex software issues and delivering maintainable solutions.
  4. Strong background in feature development and codebase refactoring.
  5. Proven ability to optimize software for performance and scalability.
  6. Exceptional written and verbal communication skills, with a keen attention to detail.
  7. Track record of success in collaborative, cross-functional teams, ideally in remote settings.



Preferred Qualifications:

  1. Previous experience working on large-scale, distributed codebases.
  2. Familiarity with modern AI or machine learning systems is a plus, though not required.
  3. Background in participating in rigorous code reviews and contributing to the development of software best practices.


Process:

  1. Apply to the role, filling out the screening questions
  2. Complete AI Interview (approx. 30 minutes)
  3. Technical Assessment (Tentative)
  4. Hiring Manager review


Compensation Structure

Compensation is output-based; experts are paid per task that meets the project specifications. The time required to complete work may vary depending on the expertโ€™s experience and workflow. Minimum submission requirements apply. Experts must submit a minimum of tasks per week.


Start Timeline & Availability

We typically fill roles within 48 hours and are looking for experts ready to jump in right away. If selected, we expect you to start your first tasks within 24โ€“48 hours of completing onboarding.