Toronto, ON · Hybrid
CA$100K - CA$145K/yr
Retirement
PTO
Senior Software Engineer - AI I Recruiter: Symbiotic Services Are you passionate about building AI-driven software that transforms how professionals work. Symbiotic Services is seeking a Senior ...
Toronto, ON · Hybrid
CA$100K - CA$145K/yr
Retirement
PTO
Senior Software Engineer - AI I Recruiter: Symbiotic Services Are you passionate about building AI-driven software that transforms how professionals work. Symbiotic Services is seeking a Senior ...
Toronto, ON · On-site +1
We're looking for a Senior Software Engineer to help build and scale the product experiences and systems behind that mission. In this role, you'll work across frontend applications, backend services ...
Toronto, ON · On-site +1
We're looking for a Senior Software Engineer to help build and scale the product experiences and systems behind that mission. In this role, you'll work across frontend applications, backend services ...
Mississauga, ON · On-site
Medical
Dental
Vision
Retirement
PTO
Summary We are growing our engineering team and are looking for an experienced, product-minded Software Engineer to help build and scale our platform. This role is ideal for someone who enjoys ...
Mississauga, ON · On-site
Medical
Dental
Vision
Retirement
PTO
Summary We are growing our engineering team and are looking for an experienced, product-minded Software Engineer to help build and scale our platform. This role is ideal for someone who enjoys ...
Toronto, ON · On-site
Position Description Boosted.ai is seeking a highly motivated and results-driven Senior Software Engineer to play a pivotal role in designing and building advanced software solutions that empower ...
Quick apply
Toronto, ON · On-site
Position Description Boosted.ai is seeking a highly motivated and results-driven Senior Software Engineer to play a pivotal role in designing and building advanced software solutions that empower ...
What's the opportunity? We're looking for a Senior Software Engineer who will help design and build robust, scalable AI services. This is a great opportunity to grow in the world of AI engineering ...
What's the opportunity? We're looking for a Senior Software Engineer who will help design and build robust, scalable AI services. This is a great opportunity to grow in the world of AI engineering ...
Toronto, ON · On-site
Medical
Dental
Vision
Retirement
PTO
Summary We are growing our engineering team and are looking for an experienced, product-minded Software Engineer to help build and scale our platform. This role is ideal for someone who enjoys ...
Toronto, ON · On-site
Medical
Dental
Vision
Retirement
PTO
Summary We are growing our engineering team and are looking for an experienced, product-minded Software Engineer to help build and scale our platform. This role is ideal for someone who enjoys ...
Toronto, ON · On-site +1
PTO
The Senior Software Engineer (ABM Domain) reports to the Senior Manager, Engineering. In this role, you will mentor Software Engineers and partner closely with the Solutions Architect to translate ...
Toronto, ON · On-site +1
PTO
The Senior Software Engineer (ABM Domain) reports to the Senior Manager, Engineering. In this role, you will mentor Software Engineers and partner closely with the Solutions Architect to translate ...
About the Role: We're looking for a Senior Software Engineer, ideally specializing in Rust, to lead the evolution of our backend platform and tooling. This role will focus on developing and ...
About the Role: We're looking for a Senior Software Engineer, ideally specializing in Rust, to lead the evolution of our backend platform and tooling. This role will focus on developing and ...
Toronto, ON · On-site
Medical
Dental
PTO
What We Are Looking For We're looking for a Senior Software Engineer to play a key part in building, scaling, and shaping Makeship's platform as a part of one of the fastest-moving industries in the ...
Toronto, ON · On-site
Medical
Dental
PTO
What We Are Looking For We're looking for a Senior Software Engineer to play a key part in building, scaling, and shaping Makeship's platform as a part of one of the fastest-moving industries in the ...
Toronto, ON · On-site
Medical
Dental
PTO
What We Are Looking For We're looking for a Senior Software Engineer to play a key part in building, scaling, and shaping Makeship's platform as a part of one of the fastest-moving industries in the ...
Toronto, ON · On-site
Medical
Dental
PTO
What We Are Looking For We're looking for a Senior Software Engineer to play a key part in building, scaling, and shaping Makeship's platform as a part of one of the fastest-moving industries in the ...
Toronto, ON · On-site
We're looking for a visionary Senior Software Engineer to provide strategic technical leadership and deep subject-matter expertise in designing and implementing enterprise-scale AI services. This is ...
Toronto, ON · On-site
We're looking for a visionary Senior Software Engineer to provide strategic technical leadership and deep subject-matter expertise in designing and implementing enterprise-scale AI services. This is ...
Toronto, ON · On-site +1
CA$120K - CA$140K/yr
... Senior Software Engineer to step into a key role on our Software Engineering - Integrations team. As a Senior Engineer, you won't just be writing code-you will be a vital technical voice and project ...
Toronto, ON · On-site +1
CA$120K - CA$140K/yr
... Senior Software Engineer to step into a key role on our Software Engineering - Integrations team. As a Senior Engineer, you won't just be writing code-you will be a vital technical voice and project ...
Mississauga, ON · On-site
About the Role As a Senior Software Engineer, you will play a pivotal role in shaping the architecture, quality, and technical direction of our proprietary e-commerce software platform. You will work ...
Mississauga, ON · On-site
About the Role As a Senior Software Engineer, you will play a pivotal role in shaping the architecture, quality, and technical direction of our proprietary e-commerce software platform. You will work ...
Toronto, ON · On-site
Medical
Dental
Vision
Collaboration Job Summary We are seeking a talented and motivated Senior Software Engineer to contribute to the development and evolution of our SaaS platform. This role is primarily focused on ...
Quick apply
Toronto, ON · On-site
Medical
Dental
Vision
Collaboration Job Summary We are seeking a talented and motivated Senior Software Engineer to contribute to the development and evolution of our SaaS platform. This role is primarily focused on ...
Toronto, ON · On-site +1
We're looking for a Senior Software Engineer to join our Alerts teams within the Applied Intelligence group, focused on the backend services that ingest, persist, and retrieve the signal data ...
Toronto, ON · On-site +1
We're looking for a Senior Software Engineer to join our Alerts teams within the Applied Intelligence group, focused on the backend services that ingest, persist, and retrieve the signal data ...
Toronto, ON · On-site
CA$120K - CA$140K/yr
... Senior Software Engineer to step into a key role on our Software Engineering - Integrations team. As a Senior Engineer, you won't just be writing code--you will be a vital technical voice and project ...
Quick apply
Toronto, ON · On-site
CA$120K - CA$140K/yr
... Senior Software Engineer to step into a key role on our Software Engineering - Integrations team. As a Senior Engineer, you won't just be writing code--you will be a vital technical voice and project ...
What's the opportunity? We're looking for a Senior Software Engineer who will help design and build robust, scalable AI services. This is a great opportunity to grow in the world of AI engineering ...
What's the opportunity? We're looking for a Senior Software Engineer who will help design and build robust, scalable AI services. This is a great opportunity to grow in the world of AI engineering ...
Toronto, ON · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
Thomson Reuters is hiring a Senior Software Engineer (Legal) on our CoCounsel Forward Deployed Engineering team. In this role, you will help design, build, and deploy bespoke AI solutions for law ...
Toronto, ON · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
Thomson Reuters is hiring a Senior Software Engineer (Legal) on our CoCounsel Forward Deployed Engineering team. In this role, you will help design, build, and deploy bespoke AI solutions for law ...
Toronto, ON · On-site +1
... Senior Software Engineer who takes end-to-end ownership, thrives in ambiguity, and wants to build systems that matter. This role is central to modernizing our platform so we can better detect fraud ...
Toronto, ON · On-site +1
... Senior Software Engineer who takes end-to-end ownership, thrives in ambiguity, and wants to build systems that matter. This role is central to modernizing our platform so we can better detect fraud ...
Toronto, ON · On-site +1
... Senior Software Engineer who takes end-to-end ownership, thrives in ambiguity, and wants to build systems that matter. This role is central to modernizing our platform so we can better detect fraud ...
Toronto, ON · On-site +1
... Senior Software Engineer who takes end-to-end ownership, thrives in ambiguity, and wants to build systems that matter. This role is central to modernizing our platform so we can better detect fraud ...
$62.9K - $72.4K
2% of jobs
$72.4K - $81.8K
5% of jobs
$81.8K - $91.3K
8% of jobs
$97.7K is the 25th percentile. Wages below this are outliers.
$91.3K - $100.8K
14% of jobs
$100.8K - $110.2K
16% of jobs
The median wage is $113.1K / yr.
$110.2K - $119.7K
16% of jobs
$119.7K - $129.1K
14% of jobs
$129.4K is the 75th percentile. Wages above this are outliers.
$129.1K - $138.6K
11% of jobs
$138.6K - $148.1K
7% of jobs
$148.1K - $157.5K
4% of jobs
$157.5K - $167K
3% of jobs
$62.9K
$117.2K
$167K
A senior software engineer designs, codes, tests, and maintains computer software. While these are your primary responsibilities as a senior software engineer, you may also have supervisory duties. These include overseeing a team of junior software engineers or developers. The senior software engineer title is sometimes used interchangeably with senior developer, and positions for both may share similar job duties and responsibilities. In general, software engineers are distinguished from developers in that software engineers apply engineering principles to software development.
| Aspect | Senior Software Engineer | Software Developer |
|---|---|---|
| Credentials | Bachelor's or higher in CS or related field; experience often 5+ years | Bachelor's in CS or related field; entry to mid-level experience |
| Work Environment | Designing complex systems, leading projects, mentoring | Writing code, developing features, debugging |
| Industry Usage | Used across tech companies, startups, enterprise | Common in software firms, startups, freelance work |
| Search & Comparison | Often compared for experience level, responsibilities | Compared for entry-level to mid-level roles |
The main difference between a Senior Software Engineer and a Software Developer lies in experience, responsibilities, and scope. Senior Software Engineers typically have more experience, lead projects, and mentor others, while Software Developers focus on coding and feature development. Both roles are essential in tech companies, but the Senior Software Engineer position involves higher-level planning and leadership.
The most popular types of Software Engineer jobs in Vaughan, ON are:
For Senior Software Engineer jobs in Vaughan, ON, the most frequently searched job titles are:
Cities near Vaughan, ON with the most Senior Software Engineer job openings:
CA$100K - CA$145K/yr
Full-time
Retirement, PTO
Re-posted 9 days ago
Senior Software Engineer - AI I Recruiter: Symbiotic Services Are you passionate about building AI-driven software that transforms how professionals work. Symbiotic Services is seeking a Senior Software Engineer - AI for a high-impact opportunity with a leading global organization. This role blends innovative, startup-style problem solving with the scale and stability of an established enterprise, focusing on AI-powered solutions that enhance tax and accounting workflows through automation and intelligence.
About the Role As a Senior Software Engineer - AI, you will: Design and implement complex AI systems, including multi-component pipelines, Retrieval-Augmented Generation (RAG) architectures, and custom AI agents Build and maintain robust testing frameworks, monitoring solutions, and ethical AI practices to ensure system quality, reliability, and compliance Proactively identify risks and performance issues, using data-driven insights to recommend and implement improvements Collaborate closely with Product, UX, and Data/Science teams to align AI capabilities with business goals and translate requirements into technical solutions Conduct proof-of-concepts (POCs) to assess emerging technologies and validate innovative AI use cases Evaluate existing systems and propose architectural, scalability, and efficiency enhancements Continuously stay current with AI advancements and promote adoption of relevant tools and technologies Required Qualifications 5+ years of professional software engineering experience, including 1+ year focused on AI/ML Strong proficiency in Python, with experience developing web applications, distributed systems, and APIs Hands-on experience with AI/ML frameworks such as PyTorch and TensorFlow Solid understanding of modern AI systems, including RAG architectures, AI agents, and agent-based systems Experience integrating AI models into production environments using APIs and data pipelines Knowledge of vector databases, embeddings, and search-driven AI solutions Strong foundation in machine learning principles, model evaluation, system design, and MLOps across the full AI lifecycle Curiosity and enthusiasm for exploring new technologies and engineering approaches Preferred Qualifications 1-2 years of experience with AWS, including designing, deploying, and operating scalable cloud services (e.g., Lambda, S3, EC2) What's in It for You Hybrid Work Model: Flexible schedule with a mix of in-office and remote work Flexibility & Work-Life Balance: Supportive policies, including work-from-anywhere options for part of the year Career Development: Strong emphasis on continuous learning, skill development, and long-term growth in an AI-focused environment Competitive Benefits: Comprehensive benefits package including flexible vacation, mental health support, retirement savings, tuition reimbursement, and incentive programs Inclusive Culture: A workplace committed to inclusion, collaboration, and professional wellbeing Social Impact: Opportunities for paid volunteer time and participation in community and ESG initiatives Compensation (Ontario, Canada) Base Salary Range: $100,000 - $145,000 CAD Compensation is based on experience, skills, and internal equity, and is part of a broader total rewards package that may include bonuses and additional benefits. Symbiotic Services is proud to represent this opportunity and is committed to a fair, inclusive, and human-centered recruitment process.
