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Full Stack Frontend Developer Jobs in Toronto, ON

Build and enhance front end applications, providing users with exceptional experience. Collaborate ... computer engineering or related field and 5+ years of full stack development experience required ...

Full Stack Engineer

Mississauga, ON · Hybrid

CA$110K - CA$140K/yr

Senior Full Stack Software Engineer Aversan Inc. (www.aversan.com) is a trusted multi-service ... Strong frontend development experience * Demonstrated Experience with: * Angular (required) * C# ...

Full Stack Developer Resume Due Date: November 21st, 2025 (5:00PM EST) Number of Vacancies: 2 Level ... front-end and back-end systems. The role requires hands-on expertise in modern web frameworks ...

This role spans both modern full-stack development and Mainframe-based payment processing, offering ... Develop and maintain enterprise-grade Spring Boot microservices, React front-end applications, and ...

Our Client is a data management and risk assessment startup, looking for a dedicated Full Stack Developer to join an experienced team of engineers and data analysts who are helping shape the future ...

Familiarity with DevOps practices and security protocols. Preferred Skills * Experience with ... full-stack development and cloud infrastructure. * Strong problem-solving skills and ability to ...

Familiarity with DevOps practices and security protocols. Preferred Skills * Experience with ... full-stack development and cloud infrastructure. * Strong problem-solving skills and ability to ...

We are hiring a Senior Developer to help design, evolve, and scale the core systems that power KEV ... In this role, you will work across frontend and backend services to deliver secure, high ...

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Full Stack Frontend Developer information

What are the key skills and qualifications needed to thrive as a Full Stack Frontend Developer, and why are they important?

To thrive as a Full Stack Frontend Developer, you should have a solid grasp of JavaScript, HTML, CSS, and at least one backend language or framework, often supported by a relevant degree or prior experience. Familiarity with tools like React, Node.js, version control systems (like Git), and deployment platforms is typically expected. Standout soft skills include problem-solving, adaptability, and strong communication for effective collaboration across teams. These skills are crucial for building responsive, scalable web applications and ensuring smooth integration between frontend and backend systems.

How does a Full Stack Frontend Developer typically collaborate with backend developers and designers on projects?

As a Full Stack Frontend Developer, you’ll regularly work alongside backend developers to ensure seamless integration between the user interface and server-side logic. Collaboration often involves reviewing API documentation, participating in sprint planning, and troubleshooting issues that arise at the intersection of frontend and backend systems. You’ll also work with designers to translate UI/UX mockups into functional, responsive components, providing technical feedback to optimize user experiences. Effective communication and teamwork are essential for delivering cohesive, high-quality applications.

What is a Full Stack Frontend Developer?

A Full Stack Frontend Developer is a software professional who specializes in building both the user-facing (frontend) and server-side (backend) components of web applications, with a primary focus on frontend technologies. They are proficient in languages and frameworks like HTML, CSS, JavaScript, React, or Angular for the frontend, while also understanding backend languages such as Node.js, Python, or PHP. This dual expertise allows them to work across the entire development stack, making them valuable in projects that require seamless integration between the user interface and server logic.

What is the difference between Full Stack Frontend Developer vs Frontend Developer?

AspectFull Stack Frontend DeveloperFrontend Developer
CredentialsTypically requires knowledge of HTML, CSS, JavaScript, and backend technologies like Node.js or PythonPrimarily focuses on HTML, CSS, JavaScript, and frontend frameworks
Work EnvironmentWorks on both client-side and server-side development, often in full-stack teamsFocuses solely on client-side development and UI/UX design
Industry UsageCommon in startups and small to medium companies needing versatile developersPrevalent in companies emphasizing specialized frontend expertise

Full Stack Frontend Developers have a broader skill set, covering both frontend and backend tasks, while Frontend Developers specialize in creating engaging user interfaces. Your choice depends on whether you prefer a versatile role or a focused frontend position.

What job categories do people searching Full Stack Frontend Developer jobs in Toronto, ON look for? The top searched job categories for Full Stack Frontend Developer jobs in Toronto, ON are:
What cities near Toronto, ON are hiring for Full Stack Frontend Developer jobs? Cities near Toronto, ON with the most Full Stack Frontend Developer job openings:
Infographic showing various Full Stack Frontend Developer job openings in Toronto, ON as of May 2026, with employment types broken down into 4% As Needed, 76% Full Time, 12% Part Time, and 8% Contract. Highlights an 95% Physical, 3% Hybrid, and 2% Remote job distribution.
Senior Software Engineer, Full Stack

Senior Software Engineer, Full Stack

THOMSON REUTERS

Toronto, ON • Hybrid

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 22 days ago


Thomson Reuters rating

8.9

Company rating: 8.9 out of 10

Based on 19 frontline employees who took The Breakroom Quiz

19th of 424 rated business services


Job description

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

Senior Software Engineer, Full Stack

The global capital markets are among the largest markets in the world valued at $50T+ and growing. Transactions in these markets are complex. Critical, nuanced legal terms are woven into lengthy documents. These documents must be digested and analyzed by many different parties over the course of a single transaction and multiple decisions are made based on the terms laid out and quantitative and qualitative attributes within. This fundamental need plus a booming market drives enormous demand for precise extraction and benchmarking of legal terms.

As a Senior Software Engineer, Full Stack at Thomson Reuters - Noetica, you'll help build robust backend systems and APIs that power our search-centric web experience that's core to the workflow of our end users. This role is backend-leaning - you'll spend most of your time on server-side architecture, data processing, and API design, while also contributing to frontend features as needed. You will collaborate with a talented team of AI/ML PhDs, legal SMEs, and market strategists to design, build, and maintain scalable backend services. The backend service you will contribute to is the critical piece between our data product and our end users. Its system architecture decisions will influence the technical direction of our platform and decide our velocity of making impacts. Your contributions will directly impact the performance and reliability of Noetica's core infrastructure.

About the role,

As a Senior Software Engineer, Full Stack, you will:

  • Design and build scalable backend services and APIs that power our document analysis platform

  • Write maintainable, high-performance server-side code and data processing pipelines

  • Define clear, efficient API contracts and contribute to service architecture decisions

  • Design and craft compositional API primitives to expedite the productionization of our ever growing list of document insights.

  • Build and maintain integrations with third-party services and internal ML systems

  • Contribute to frontend features and components as needed to deliver features end to end

  • Work on performance optimization for data-intensive backend operations

  • Take ownership in engineering excellence and collaborate on code practices and design patterns to ensure long-term maintainability and scalability.

  • Take ownership in developer experience by improving/automating CI/CD and other day to day production operations.

About You:
You're fit for the role of Senior Software Engineer, Full Stack if your background includes:

  • Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent experience)

  • 4+ years of professional full-stack development experience with a strong focus on backend systems

  • Proficiency in backend technologies (Node.js, Python, or Go) and API design

  • Strong understanding of RESTful APIs, database design, and data modeling

  • Experience with SQL and NoSQL databases

  • Familiarity with containerization and orchestration platforms (Docker, Kubernetes) and hyperscalers (AWS, GCP, etc.)

  • Proficiency in TypeScript and React for frontend work

  • Foundation in distributed systems, event-driven architectures, and web fundamentals

  • Strong communication and collaboration skills

  • Self-starting problem-solving approach biased towards action and scope minimization

Preferred Qualifications

  • Experience with microservices architecture and message queues

  • Understanding of CI/CD fundamentals and experience working in single-tenant architectures

  • Experience building data processing pipelines or working with large-scale data systems

  • Familiarity with object-oriented design and functional programming principles

  • Experience optimizing backend performance for data-intensive applications

  • Interest in language and economics

  • Thrive in a high-leverage, fast-paced environment

  • Familiar with technologies like monorepo, jujutsu, mise, pprof, etc.

#LI-GK1

What's in it For You?

  • Hybrid Work Model: We've adopted a flexible hybrid working environment (2-3 days a week in the office depending on the role) 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. Eligible office location(s) for this role include one or more of the following: New York City, San Francisco, Los Angeles, and/or Irvine, CA; McLean, VA; Washington, DC. The base compensation range for the role in any of those locations is $127,000 USD - $235,000 USD. For any eligible US locations, unless otherwise noted, the base compensation range for this role is $110,000 USD - $204,200 USD. For Ontario, Canada, the base compensation range for this role is $100,000 CAD - $145,000 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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