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Senior Full Stack Software Developer Jobs in Toronto, ON

Klick

Senior Full-Stack Developer

Toronto, ON

CA$100K - CA$130K/yr

The Senior Full Stack Developer contributes across the development lifecycle--architecture, implementation, deployment, and optimization--while collaborating with multifunctional partners to deliver ...

US Mobile

Full-Stack Software Engineer

Toronto, ON

CA$130K - CA$160K/yr

As a Full-Stack Software Engineer, you will: * Work on developing and deploying exciting new features * Advise on technologies and present solutions to the team * Take on legacy architecture and ...

Konrad

Senior Full Stack Developer

Toronto, ON · Hybrid

CA$120K - CA$145K/yr

About The Role As a Senior Full Stack Developer you'll be tasked with working on web application ... Working within the software development team, your duties will require you to assist in the ...

Konrad

Senior Full Stack Developer

Toronto, ON · Hybrid

CA$120K - CA$145K/yr

About The Role As a Senior Full Stack Developer you'll be tasked with working on web application ... Working within the software development team, your duties will require you to assist in the ...

Accenture

AI Full Stack Developer

Toronto, ON · On-site

CA$114.40K - CA$171.95K/yr

We are seeking a talented senior full stack developers or team leads to join our Canadian Apps and ... Participate in all stages of software development-from requirements gathering through deployment ...

Manulife

Lead Full Stack Software Engineer

Toronto, ON

CA$127.33K/yr

Serve as the senior technical escalation point and subject-matter authority for complex products in ... e.g., DevOps, CI/CD, cloud-native, automation, SRE) within the core products in GA Technology ...

Hays

Full Stack Engineer

Toronto, ON

Java Full Stack Developer Location: Toronto, ON Type: Contract Rate: CAD50/hr - CAD60/hr We are looking for an experienced Senior Full Stack Developer with strong hands-on expertise in Angular Java ...

KEV Group

Senior Full Stack Engineer

Toronto, ON

Who We Are At KEV, we build mission-critical financial software for K-12 schools on a massive scale ... We are hiring a Senior Developer to help design, evolve, and scale the core systems that power KEV ...

KEV Group

Senior Full Stack Engineer

Toronto, ON · On-site

Who We Are At KEV, we build mission-critical financial software for K-12 schools on a massive scale ... We are hiring a Senior Developer to help design, evolve, and scale the core systems that power KEV ...

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Senior Full Stack Software Developer information

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

A Senior Full Stack Software Developer needs advanced proficiency in both front-end and back-end programming languages, strong problem-solving skills, and several years of relevant software development experience. Familiarity with frameworks like React or Angular, back-end technologies such as Node.js or Django, and experience with cloud platforms, CI/CD tools, and version control systems like Git are typically required. Excellent communication, teamwork, and leadership abilities help developers collaborate effectively and mentor junior team members. These skills are crucial for designing robust, scalable applications and leading complex projects to successful completion.

What types of projects and technologies can a Senior Full Stack Software Developer expect to work on, and how does the team typically collaborate?

As a Senior Full Stack Software Developer, you can expect to work on a diverse range of projects such as developing scalable web applications, integrating APIs, and optimizing system performance. The tech stack often includes front-end frameworks like React or Angular, back-end environments such as Node.js, Python, or Java, and databases like PostgreSQL or MongoDB. Collaboration is highly cross-functional—you’ll regularly coordinate with product managers, UX/UI designers, QA engineers, and other developers through agile methodologies, code reviews, and sprint planning sessions. This role offers opportunities to mentor junior developers, influence architectural decisions, and contribute to continuous process improvement.

What is a Senior Full Stack Software Developer?

A Senior Full Stack Software Developer is an experienced professional who designs, develops, and maintains both the front-end and back-end components of web applications. They are proficient in multiple programming languages and frameworks, enabling them to work on the entire technology stack, from databases and servers to user interfaces. In addition to coding, they often lead projects, mentor junior developers, and help architect scalable solutions that meet business needs. Their role requires strong problem-solving skills, a deep understanding of software development best practices, and the ability to collaborate with cross-functional teams.

What is the difference between Senior Full Stack Software Developer vs Software Engineer?

AspectSenior Full Stack Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience in full stack developmentBachelor's degree in CS or related field; may have certifications in specific technologies
Work EnvironmentCollaborates across front-end and back-end teams, often in agile settingsDesigns, develops, and maintains software applications, often in teams or individually
Industry UsageCommon in tech companies, startups, and agencies requiring versatile development skillsWidely used across industries for software development roles

While both roles involve software development, a Senior Full Stack Software Developer specializes in both front-end and back-end technologies, often taking on leadership responsibilities. A Software Engineer may focus on specific areas of software design and implementation, with less emphasis on full stack expertise. The roles overlap in skills and industry usage, but the senior developer typically has broader responsibilities and experience in full stack development.

What are the most commonly searched types of Full Stack Software Developer jobs in Toronto, ON? The most popular types of Full Stack Software Developer jobs in Toronto, ON are:
What cities near Toronto, ON are hiring for Senior Full Stack Software Developer jobs? Cities near Toronto, ON with the most Senior Full Stack Software Developer job openings:
Senior Full Stack Software Developer jobs near you
Infographic showing various Senior Full Stack Software Developer job openings in Toronto, ON as of May 2026, with employment types broken down into 76% Full Time, 23% Part Time, and 1% Contract. Highlights an 87% Physical, 2% Hybrid, and 11% Remote job distribution.

Senior Full-Stack Developer

Klick

Toronto, ON

CA$100K - CA$130K/yr

Other

Posted 24 days ago

Job description

The Klick Group - comprising Klick Health (including Klick Katalyst and btwelve), Klick Media Group, Klick Applied Sciences (including Klick Labs), Klick Consulting, and Klick Ventures—is an ecosystem dedicated to realizing the full potential of our people and clients in life sciences. Founded in 1997, we have offices in New York, Philadelphia, Saratoga Springs, Toronto, London, São Paulo, and Singapore. Consistently named a Best Managed Company, Most Admired Corporate Culture, and Great Place to Work, Klick is committed to fostering a high-performance, people-first culture with creativity, collaboration, innovation, and impact across everything we do.
About Our Technology Craft
Our Technology craft builds scalable digital products, platforms, and tools that power impactful experiences for our clients and teams. We collaborate closely across disciplines to design, develop, and evolve systems that are secure, intuitive, and future-ready. The team brings deep expertise in engineering, architecture, data, and emerging technologies to solve complex problems with practical, human-centered solutions.
Job Description
This role develops scalable full-stack applications and tools that support internal teams, with a dedicated focus on integrating AI capabilities into production systems. The Senior Full Stack Developer contributes across the development lifecycle—architecture, implementation, deployment, and optimization—while collaborating with multifunctional partners to deliver high-quality, reliable solutions. The position is ideal for someone who enjoys working across multiple layers of technology and navigating evolving AI technologies in a practical, grounded way.
  • Lead full-stack development efforts from design through deployment, with emphasis on AI-enabled functionality.
  • Collaborate across teams to identify opportunities to embed AI-driven solutions into existing systems and workflows.
  • Develop and maintain front-end and back-end components, ensuring code quality, scalability, and performance while supporting both new builds and existing applications.
  • Conduct code reviews, contribute to architectural decisions, and support shared engineering standards.
  • Build and improve data integrations, APIs, and tools that streamline and automate processes.
Qualifications
Required:
  • 8+ years developing web applications in a full-stack environment (back-end dominant).
  • Experience with AI frameworks, libraries, or model integration patterns.
  • Experience working with architecture patterns, distributed systems, or data-driven applications.
  • Experience with Node/JavaScript for both front and back-end development.
  • Experience with SQL-based databases (e.g., MS SQL Server, BigQuery) and advanced query design.
Desired:
  • Experience with modern HTML, JavaScript, and CSS.
  • Ability to work across multiple technologies and contribute to varied tooling needs.
  • Experience with API development and testing tools.
  • Ability to share knowledge and collaborate across disciplines.
  • Knowledge of cloud-based AI solutions (Azure, AWS, or Google Cloud).
Additional Information
This posting is for a net new vacancy at Klick.
Join a collaborative, growth-focused culture where your ideas are valued and your career is built. The base salary range for this position is between CAD $100,000 - 130,000. The final amount offered will be determined based on several factors such as a candidate's work location, their unique skill set, education, and prior work experience. We believe in transparency, equity, and helping every employee thrive.
Our Commitment to Inclusion
Klick uses an AI-powered tool as part of an automated process to support our hiring process by analyzing your experience, skills, and qualifications to help identify alignment with role requirements. Please note that the tool does not make final decisions or automatically disqualify candidates. Hiring decisions are made by our team, with thoughtful human judgment and oversight. We are committed to fair and transparent hiring practices and have implemented safeguards to help mitigate bias and support compliance with applicable laws. If you have questions, accessibility needs, or concerns about the use of this tool, please contact us. Klick is consciously creating a culture where everyone can thrive and grow in their careers. We believe that our best work comes from our diverse backgrounds, perspectives, and skills. We strongly encourage members of historically underrepresented communities to apply, including Black people, Indigenous peoples, and other people of color, people with disabilities, people from gender and sexually diverse communities and people with intersectional identities. We're also committed to developing an inclusive, barrier-free recruitment process and work environment. Should you require any accommodation, please contact us at careers@klick.com and we will work with you to meet your accessibility needs and ensure you have a positive experience.

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