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Lead Software Engineer Jobs in Ontario (NOW HIRING)

As a Lead Engineer, you will: * Build End to End Solutions: Design and implement full-stack ... Technical Experience: 6+ years of professional software engineering experience building and ...

As a Lead Software Engineer on the Advice Centre Engineering Team, you will architect and lead the design, development, and delivery of enterprise-scale applications and backend services that enable ...

As a Lead Software Developer at Spiria, you will: * Provide an advisory role to clients. * Provide functional and technical leadership within projects. * Make recommendations for the development and ...

Lead software developer is responsible for preparing design specifications to deliver product requirements defined by product management and product owner. * Lead and mentor Professional Band ...

As a Lead Software Developer at Spiria, you will: * Provide an advisory role to clients. * Provide functional and technical leadership within projects. * Make recommendations for the development and ...

Lead software developer is responsible for preparing design specifications to deliver product requirements defined by product management and product owner. * Lead and mentor Professional Band ...

Showing results 21-40

Lead Software Engineer information

See Ontario salary details

$68.5K

$134.3K

$189.5K

How much do lead software engineer jobs pay per year?

As of Aug 14, 2026, the average yearly pay for lead software engineer in Ontario is $134,271.00, according to ZipRecruiter salary data. Most workers in this role earn between $111,000.00 and $153,000.00 per year, depending on experience, location, and employer.

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

To thrive as a Lead Software Engineer, you need advanced programming expertise, software architecture knowledge, and a degree in computer science or a related field, often supplemented by experience in leading development teams. Familiarity with version control systems (like Git), cloud platforms (such as AWS or Azure), and methodologies like Agile or Scrum is typically expected. Exceptional communication, leadership, and problem-solving abilities are crucial soft skills for mentoring developers and managing projects. These skills ensure efficient project delivery, high-quality code, and effective team collaboration in complex technical environments.

How does a lead software engineer typically balance hands-on coding with leadership and mentoring responsibilities?

As a Lead Software Engineer, you'll find that your role involves a dynamic mix of technical work and team leadership. While you'll still contribute directly to codebases—often tackling complex or critical components—you'll also spend significant time guiding junior engineers, conducting code reviews, and facilitating technical discussions. Balancing these responsibilities requires strong time management and communication skills, as well as the ability to delegate effectively. The role offers the opportunity to shape technical direction while fostering team growth and collaboration.

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

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

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

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

Infographic showing various Lead Software Engineer job openings in Ontario as of August 2026, with employment types broken down into 90% Full Time, 8% Part Time, and 2% Contract. Highlights an 91% Physical, 3% Hybrid, and 6% Remote job distribution, with an average salary of $134,271 per year, or $64.6 per hour.

Lead Software Engineer I

THOMSON REUTERS

Toronto, ON • Hybrid

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 7 days ago


Thomson Reuters rating

8.8

Company rating: 8.8 out of 10

Based on 20 frontline employees who took The Breakroom Quiz

40th of 491 rated business services


Job description

Job Description

Job Description

We'relooking for a Lead Engineer to join theCoCounselApplicationsteam and play a hands-on technical leadership role in building and evolving ourexternal integrationstrategy leveraging MCP and A2A.In this role,you'llown and deliver full-stack solutions across our frontend and backend systems,leadby example in code, and work closely with product, design, and platform partners to deliver high-impact, customer-facing features.

About the role:
As a Lead Engineer, you will:

  • Build End to End Solutions:Design and implement full-stack features across frontend and backend systems, including hands-on development in our React, Typescriptand Python stacks - and direct contribution to AI-powered capabilities such as agentic workflows, LLM integrations,andMCP/A2A-based tooling.

  • Set Technical Standards:Establishand uphold best practices for code quality, performance, accessibility, testing, and maintainability, leading by example through reviews and contributions

  • Collaborate Cross Functionally:Partner closely with product, design, and backend teams to shape requirements, define APIs, and deliver cohesive user experiences

  • Drive Execution:Break down complex initiatives, provide reliable estimates, and help the team deliver work from development through production

  • Mentor Engineers:Support the growth of other engineers through pairing, code reviews, and ongoing technical guidance

About You:

You'rea fit for the role of LeadEngineer, ifyour background includes:

  • Technical Experience:6+ years of professional software engineering experience building and shipping production web applications used by real customers, with active, hands-on coding contributions in the last 2-3 years

  • Frontend Expertise:Someexperience with modern frontend frameworks such as React, along with a solid understanding of TypeScript and frontend architecture

  • Backend Skills & AI Skills:Strongexperience building APIs and services with Python as a core language, and working familiarity with GenAI concepts including prompt engineering, agentic system design, LLM orchestration frameworks, andsome familiarity with MCP/A2A

  • Technical Leadership:Proven ability to lead through influence rather than authority, improving systems, reducing technical debt, and guiding architectural decisions

  • Collaboration & Communication:Comfortable operating in fast-paced, ambiguous environments, withstrong communicationskills and a collaborative mindset


Preferred Qualifications

  • BA or BS in Computer Science or equivalent practical experience

  • Experience with performance optimization for web applications, including monitoring, profiling, and tuning for scale

  • Hands-on experience building AI-powered product features, including working with LLM APIs, RAG pipelines, or agentic workflows in a production environment

  • Familiarity with AI/ML infrastructure including vector databases, model serving, and cost/latency optimization for LLM-powered features

#LI-SB1

This posting is for proactive recruitment purposes and may be used to fill current openings or future vacancies within our organization.

What's in it For You?

  • Hybrid Work Model: We've adopted a flexible hybrid working environment for our office-based roles while delivering a seamless experience that is digitally and physically connected.
  • Flexibility & Work-Life Balance: Flex My Way is a set of supportive workplace policies designed to help manage personal and professional responsibilities, whether caring for family, giving back to the community, or finding time to refresh and reset. This builds upon our flexible work arrangements, including work from anywhere for up to 8 weeks per year, empowering employees to achieve a better work-life balance.
  • Career Development and Growth: By fostering a culture of continuous learning and skill development, we prepare our talent to tackle tomorrow's challenges and deliver real-world solutions. Our Grow My Way programming and skills-first approach ensures you have the tools and knowledge to grow, lead, and thrive in an AI-enabled future.
  • Industry Competitive Benefits: We offer comprehensive benefit plans to include flexible vacation, two company-wide Mental Health Days off, access to the Headspace app, retirement savings, tuition reimbursement, employee incentive programs, and resources for mental, physical, and financial wellbeing.
  • Culture: Globally recognized, award-winning reputation for inclusion and belonging, flexibility, work-life balance, and more. We live by our values: Obsess over our Customers, Compete to Win, Challenge (Y)our Thinking, Act Fast / Learn Fast, and Stronger Together.
  • Social Impact: Make an impact in your community with our Social Impact Institute. We offer employees two paid volunteer days off annually and opportunities to get involved with pro-bono consulting projects and Environmental, Social, and Governance (ESG) initiatives.
  • Making a Real-World Impact:We are one of the few companies globally that helps its customers pursue justice, truth, and transparency. Together, with the professionals and institutions we serve, we help uphold the rule of law, turn the wheels of commerce, catch bad actors, report the facts, and provide trusted, unbiased information to people all over the world.

Our use of AI within the recruitment process Thomson Reuters utilizes Artificial Intelligence (AI) to support parts of our global recruitment process. Unless you opt-out, our AI system will assess the information provided by you and compare it to the requirements listed for the role, and present the result to our recruitment personnel for further review. The AI system acts as a supporting tool, but there is always a human making the decision if you will be considered for the role.In the United States, Thomson Reuters offers a comprehensive benefits package to our employees. Our benefit package includes market competitive health, dental, vision, disability, and life insurance programs, as well as a competitive 401k plan with company match. In addition, Thomson Reuters offers market leading work life benefits with competitive vacation, sick and safe paid time off, paid holidays (including two company mental health days off), parental leave, sabbatical leave. These benefits meet or exceeds the requirements of paid time off in accordance with any applicable state or municipal laws. Finally, Thomson Reuters offers the following additional benefits: optional hospital, accident and sickness insurance paid 100% by the employee; optional life and AD&D insurance paid 100% by the employee; Flexible Spending and Health Savings Accounts; fitness reimbursement; access to Employee Assistance Program; Group Legal Identity Theft Protection benefit paid 100% by employee; access to 529 Plan; commuter benefits; Adoption & Surrogacy Assistance; Tuition Reimbursement; and access to Employee Stock Purchase Plan.Thomson Reuters complies with local laws that require upfront disclosure of the expected pay range for a position. The base compensation range varies across locations. For any eligible US locations, unless otherwise noted, the base compensation range for this role is $118,400 USD - $219,800 USD. For Ontario, Canada, the base compensation range for this role is $140,600 CAD - $190,600 CAD. Base pay is positioned within the range based on several factors including an individual's knowledge, skills and experience with consideration given to internal equity. Base pay is one part of a comprehensive Total Reward program which also includes flexible and supportive benefits and other wellbeing programs. This role may also be eligible for an Annual Bonus based on a combination of enterprise and individual performance.

About Us

Thomson Reuters informs the way forward by bringing together the trusted content and technology that people and organizations need to make the right decisions. We serve professionals across legal, tax, accounting, compliance, government, and media. Our products combine highly specialized software and insights to empower professionals with the data, intelligence, and solutions needed to make informed decisions, and to help institutions in their pursuit of justice, truth, and transparency. Reuters, part of Thomson Reuters, is a world leading provider of trusted journalism and news.

We are powered by the talents of 26,000 employees across more than 70 countries, where everyone has a chance to contribute and grow professionally in flexible work environments. At a time when objectivity, accuracy, fairness, and transparency are under attack, we consider it our duty to pursue them. Sound exciting? Join us and help shape the industries that move society forward.

As a global business, we rely on the unique backgrounds, perspectives, and experiences of all employees to deliver on our business goals. To ensure we can do that, we seek talented, qualified employees in all our operations around the world regardless of race, color, sex/gender, including pregnancy, gender identity and expression, national origin, religion, sexual orientation, disability, age, marital status, citizen status, veteran status, or any other protected classification under applicable law. Thomson Reuters is proud to be an Equal Employment Opportunity Employer providing a drug-free workplace.

Thomson Reuters makes reasonable accommodations for applicants with disabilities, including veterans with disabilities, and for sincerely held religious beliefs in accordance with applicable law. If you reside in the United States and require an accommodation in the recruiting process, you may contact our Human Resources Department atHR.Leave-Expert@thomsonreuters.com. Disability accommodations in the recruiting process may include things like a sign language interpreter, making interview rooms accessible, providing assistive technology, or other relevant accommodations. Please note this email is not intended for general recruitment questions and we will promptly respond to inquiries regarding accommodations. More information on requesting an accommodation here.

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More information about Thomson Reuters can be found on thomsonreuters.com


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