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Sr Full Stack Web Developer Jobs in Ontario (NOW HIRING)

Optimize Financial Group

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Full Stack Web Developer

Toronto, ON · On-site

We are seeking a talented Full Stack Web Developer to join our Toronto-based tech team. You will be responsible for writing clean, high-quality code and collaborating with Product Managers and other ...

StackandCo

\n \n \n \n \n The Full Stack Web Developer role is a key role in supporting IT Solutions and leading project development activities. You will work on the analysis, design, development and maintenance ...

Shop Innovator

Full Stack Web Developer

Toronto, ON · On-site +1

Web Developer We are looking for a talented and reliable Web Developer to join our growing team and support multiple development projects across our brands and platforms. This role will involve ...

StackandCo

\n \n \n \n \n Full Stack Software Developer\n \n I have a open role for a Senior Full Stack Web Developer in .Net, HTML\/CSS\/Javascript, SQL Server and have some UI Experience in design. This role ...

1Valet

Senior Full-Stack Developer

Toronto, ON · Remote

Senior Full-Stack Developer Location: Ottawa, ON (Remote) About the Role We are looking for a ... Angular .NET / C# (Web APIs, services) MS/Azure SQL (schema design, performance tuning ...

StackandCo

\n \n \n \n \n The successful Senior Full Stack Developer will assume ownership for a diversity of ... and building web services for clients. \n \n \n \n \n \n \n As well as this, you will play an ...

Trellis

Senior Full Stack Developer

Kanata, ON · On-site

We're looking for a passionate Senior Full-Stack Developer who wants to make a difference in a fast ... Web: HTML, Javascript, CSS, React * Backend: Python, Django, Postgres, Redis. * Distributed ...

StackandCo

\n \n \n \n \n Our client is looking for a talented Frontend focused, Full\-Stack Web Developer who enjoys to write high quality, clean code and has experience with multiple CMS. \n \n \n \n \n \n \n ...

StackandCo

\n \n \n \n \n Our client is urgently looking for a talented Frontend focused, Full\-Stack Web Developer who enjoys writing high quality, clean code and has experience with multiple CMS. \n \n \n \n ...

StackandCo

\n \n \n \n \n Our client is urgently looking for a talented Frontend focused, Full\-Stack Web Developer who enjoys writing high quality, clean code and has experience with multiple CMS. \n \n \n \n ...

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Sr Full Stack Web Developer information

What does a Sr Full Stack Web Developer do?

A Sr Full Stack Web Developer is responsible for designing, building, and maintaining both the front-end (client-side) and back-end (server-side) components of web applications. They work with various programming languages, frameworks, and databases to create seamless and efficient user experiences. In addition to coding, they often lead technical projects, mentor junior developers, and help shape the overall architecture of web solutions. Their role requires a deep understanding of both user interface design and server-side logic, ensuring that all parts of a web application function together smoothly.

What are the key skills and qualifications needed to thrive as a Sr Full Stack Web Developer?

To thrive as a Sr Full Stack Web Developer, you need advanced proficiency in both front-end (e.g., HTML, CSS, JavaScript frameworks) and back-end (e.g., Node.js, Python, databases) development, typically supported by a degree in computer science or related experience. Familiarity with tools such as Git, cloud platforms (AWS, Azure), RESTful APIs, and relevant certifications like AWS Certified Developer are commonly required. Strong problem-solving skills, effective communication, and the ability to mentor junior developers are essential soft skills for this role. These competencies ensure you can deliver robust, scalable solutions while collaborating efficiently within multidisciplinary teams.

How does a Sr Full Stack Web Developer typically collaborate with cross-functional teams during a project lifecycle?

As a Sr Full Stack Web Developer, you will frequently collaborate with UX/UI designers, product managers, QA engineers, and sometimes DevOps specialists throughout a project's lifecycle. You may participate in sprint planning, code reviews, and daily stand-ups, ensuring alignment on project goals and technical requirements. Effective communication is key, as you'll often translate business needs into technical solutions and provide guidance to junior developers. This collaborative environment supports the delivery of robust, user-friendly web applications and fosters professional growth through shared knowledge.

What is the difference between Sr Full Stack Web Developer vs Full Stack Web Developer?

AspectSr Full Stack Web DeveloperFull Stack Web Developer
Required Experience5+ years, leadership skills often expected1-3 years, focus on development skills
ResponsibilitiesDesigning complex systems, mentoring, project leadershipBuilding features, coding, debugging
CertificationsOptional, but advanced certifications valuedEntry to mid-level certifications
Work EnvironmentFast-paced, collaborative teams, often in tech companies

The main difference between a Sr Full Stack Web Developer and a Full Stack Web Developer lies in experience, responsibilities, and leadership. Senior developers typically have more experience, handle complex projects, and mentor others, while full stack developers focus on coding and feature development. Both roles are essential in tech industries, but senior roles require a broader skill set and leadership capabilities.

What are popular job titles related to Sr Full Stack Web Developer jobs in Ontario?

For Sr Full Stack Web Developer jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Sr Full Stack Web Developer jobs in Ontario look for?

The top searched job categories for Sr Full Stack Web Developer jobs in Ontario are:

What cities in Ontario are hiring for Sr Full Stack Web Developer jobs?

Cities in Ontario with the most Sr Full Stack Web Developer job openings:

Sr Full Stack Web Developer jobs near you
Infographic showing various Sr Full Stack Web Developer job openings in Ontario as of June 2026, with employment types broken down into 89% Full Time, 7% Part Time, and 4% Contract. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution.

Full Stack Web Developer

Toronto, ON • On-site

Optimize Financial Group
See more jobs at Optimize Financial Groupexternal

Full-time

Posted 22 days ago

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Job description

About Optimize Wealth Management: Optimize Wealth Management is a premier portfolio management firm that believes technology can make financial management simpler, more transparent, and more cost-effective. We are looking for a skilled Developer to help build and maintain our cutting-edge wealth management platform.


The opportunity: We are seeking a talented Full Stack Web Developer to join our Toronto-based tech team. You will be responsible for writing clean, high-quality code and collaborating with Product Managers and other developers to build and enhance our software products. This is a full-time, on-site role (Monday to Friday, 8:30 a.m. to 5:30 p.m.).


Key responsibilities:

  • Design, develop, and maintain software applications for the Optimize platform.
  • Work with Product Managers to define and refine feature requirements.
  • Write clean, efficient, and well-documented code.
  • Participate in code reviews to maintain high-quality standards.
  • Troubleshoot, debug, and resolve technical issues.
  • Stay up-to-date with emerging technologies and best practices.


Qualifications:

  • Bachelor’s degree in Computer Science, Software Engineering, or a related field.
  • Minimum of 3 years of experience in software development.
  • Proficiency in at least one modern programming language (e.g., Python, JavaScript, Java).
  • Experience with front-end (e.g., React, Angular) and/or back-end technologies.
  • Experience with database systems (e.g., SQL, NoSQL).
  • Familiarity with Agile development methodologies.


Use of Artificial Intelligence in Recruitment

As part of our recruitment and selection process, we may use technology-enabled tools, including artificial intelligence (AI), to assist with certain aspects of candidate screening, assessment, scheduling, and application review. All hiring decisions are ultimately made by qualified individuals and are based on job-related criteria, qualifications, and business requirements.