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Full Stack Application Developer Jobs in Ontario

Ci

Full Stack Developer

Toronto, ON

CA$69K - CA$119K/yr

The Full Stack Developer is responsible for designing and developing web-based and middle-tier ... Responsibilities Application Development * Design, develop, and maintain full stack applications ...

Quantiphi, Inc.

Full Stack Developer

Toronto, ON · Remote

Full Stack Software Developer Experience Level: 5-10 yrs Work Location: US East/Canada (Remote) Role Overview: We're looking for a Full Stack Software Developer to design and build scalable, high ...

PHD Solutions Inc

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Full Stack Software Developer

Burlington, ON · On-site

CA$75K - CA$100K/yr

Full-Stack Software Developer Location Burlington, Ontario (on-site, majority of time in office ... Familiarity with REST API design, JSON handling, and cloud-native application patterns is important.

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Full Stack Application Developer information

What is a Full Stack Application Developer?

A Full Stack Application Developer is a software professional who is skilled in both front-end and back-end development. This means they can work on the user interface, server-side logic, databases, and sometimes even deployment and infrastructure. Full Stack Developers are versatile and can handle multiple aspects of building and maintaining web applications. Their broad skill set allows them to work across the entire technology stack, making them valuable assets to development teams.

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

To thrive as a Full Stack Application Developer, you need strong proficiency in both front-end and back-end programming languages (such as JavaScript, HTML/CSS, Node.js, Python, or Java) and a solid understanding of software development principles. Familiarity with frameworks like React or Angular, database systems (SQL or NoSQL), version control (Git), and potentially certifications like AWS Certified Developer are commonly expected. Problem-solving, adaptability, and effective communication are vital soft skills, enabling collaboration and efficient troubleshooting. These combined skills ensure the ability to independently build, maintain, and scale robust applications that meet user and business needs.

What are some common challenges Full Stack Application Developers face when managing both front-end and back-end tasks?

Full Stack Application Developers often encounter the challenge of balancing priorities between front-end user experience and back-end system performance. Staying proficient in a wide range of technologies and frameworks can be demanding, especially as projects scale or new tools are adopted. Effective communication with both UI/UX designers and server-side engineers is essential to ensure cohesive integration and smooth workflows. Adapting to frequent context switching and troubleshooting across the entire stack requires strong organizational skills and a proactive approach to learning.
Full Stack Application Developer jobs near you
Infographic showing various Full Stack Application Developer job openings in Ontario as of July 2026, with employment types broken down into 78% Full Time, 17% Part Time, 1% Temporary, and 4% Contract. Highlights an 91% Physical, 3% Hybrid, and 6% Remote job distribution.

Senior Full Stack Web Application Developer

The Citco Group Limited

Toronto, ON • On-site

CA$120K - CA$150K/yr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

About Citco

Since the 1940s Citco has provided specialist financial services to alternative investment funds, investors, multinationals and private clients worldwide. With over 6,000 employees in 45 countries, we pioneer innovative solutions that meet our clients' evolving needs and deliver exceptional service. 

Our continuous investment in learning means our people are among the best in the industry. And our corporate social responsibility programs provide meaningful and fulfilling work in the community.

A career at Citco isn't just a job - it's an opportunity to excel in an environment that genuinely supports your personal and professional development.

About Our Team

We developed cloud-native applications with the ultimate goal to provide Software-as-a-Service.  We have combined business and technical expertise into a unified team to deliver superior software to the Private Equity investment industry.

About the Role: 

You will be working in a cross-functional team, using agile methodologies to build and support an AWS cloud native application for the financial services industry. We are looking for developers with great communication skills and lots of experience with NodeJS and React. 

The project is 5 years old and in active development for the foreseeable future. We have strong test automation in place from unit testing to end to end browser testing. Most of the work is new development with occasional refactoring and support needed.  

AWS experience is desirable and its definitely a differential, but not a requirement and something we can help you develop.

Your Role:

Required Skills: 

  • Bachelor's degree in engineering, Computer Science, or equivalent
  • 6+ years of experience with web application development
  • 2+ years of experience with Node.JS / Typescript
  • 1+ years of experience with React / Redux
  • Experience designing and developing asynchronous processes using queues.
  • Solid understanding and demonstrated proficiency with core software development processes - debugging, code tuning, code management and branching, coding styles and refactoring.
  • Must be self-motivated and driven, with strong analytical, problem solving, and communication skills
     

Desirable Skills:

  • Experience with AWS services such as Lambda, S3, ECS, Cloud formation and IAM.
  • Experience in the financial services industry, especially if related to fund accounting.

Salary Range: CAD $120,000-$150,000 

  • This posting is for an existing vacancy

Our Benefits:

Your well-being is of paramount importance to us, and central to our success. We provide a range of benefits, training and education support, and flexible working arrangements to help you achieve success in your career while balancing personal needs. Ask us about specific benefits in your location.

We embrace diversity, prioritizing the hiring of people from diverse backgrounds. Our inclusive culture is a source of pride and strength, fostering innovation and mutual respect.

Citco welcomes and encourages applications from people with disabilities. Accommodations are available upon request for candidates taking part in all aspects of the selection.

Your Role:

  • You will design and develop backend code using Node.js / Typescript
  • Develop re-usable Front end React components and new pages in the application.
  • Help coach and support Junior team members.
  • Perform reviews and ensure the quality of the team's work 
  • Create quality unit tests and maintain test coverage thresholds
  • Communicate directly with the product owner, UX and QA team members.
  • Participate and contribute on team activities and Agile Ceremonies. 
  • Manage AWS resources in a safe and cost-effective manner.

Apply