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Senior Full Stack Software Engineer Jobs in Mississauga, ON

Flinks

Senior Full-Stack Developer

Toronto, ON · Remote

The Role We're hiring Senior Full-Stack Developers to build and own the client-facing product ... We're not building software for software's sake. Our products only matter when a client can see ...

Solink

Senior Full-Stack Engineer (Media Team)

Toronto, ON · Remote

CA$115K - CA$173K/yr

Senior Full-Stack Engineer (Media Team) Location: Ottawa, ON or Toronto, ON | Hybrid Department: R&D | Video Type: Permanent | Full-Time Vacancy Status: This is an active, approved role and we are ...

Human Agency

Senior Full-Stack Engineer

Toronto, ON · On-site

As part of our team, you'll work on high-impact projects at the intersection of AI, machine learning, and secure software engineering. We're seeking a Senior Full-Stack Engineer to join our growing ...

Prophix

Senior Full-Stack Engineer

Etobicoke, ON · On-site

As a Senior Full-Stack Engineer on the FP&A Plus platform, you will design, build, and maintain the ... Required Qualifications * 5+ years of professional software development experience building ...

Sepi workwolf

Software engineer

Toronto, ON · On-site

CA$75K - CA$85K/yr

Full stack software engineer with the sense of product and can handle task by them selves and knows next.js, playwright Sepi workwolf uses Workwolf's AI-enabled tools to sort and screen applications ...

Sepi workwolf

Software engineer

Toronto, ON

CA$75K - CA$85K/yr

Full stack software engineer with the sense of product and can handle task by them selves and knows next.js, playwright Sepi workwolf uses Workwolf's AI-enabled tools to sort and screen applications ...

Mattermost

Staff Full Stack Engineer

Toronto, ON · On-site +1

CA$195K - CA$238K/yr

Senior full-stack development experience in Go and React (or a comparable stack), with a track ... Ship and own complex software across the full stack with real accountability for what you build

Citi

React Full Stack Developer

Mississauga, ON

The Software Engineer works to understand and influence software architecture, while contributing to Citi's technical user base. Responsibilities: Apply depth of knowledge and expertise to all ...

Priceline

Senior Full-Stack Developer

Toronto, ON · Hybrid

CA$140K - CA$160K/yr

Senior Full-Stack Engineer (Applied AI) Our Technology team is the backbone of our company ... Join an Agile team of software engineers that are instrumental in building the next generation of ...

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Senior Full Stack Software Engineer information

See Mississauga, ON salary details

$67.4K

$127.7K

$171K

How much do senior full stack software engineer jobs pay per year?

As of Sep 8, 2026, the average yearly pay for senior full stack software engineer in Mississauga, ON is $127,719.00, according to ZipRecruiter salary data. Most workers in this role earn between $111,623.00 and $143,650.00 per year, depending on experience, location, and employer.

What is a senior full stack software engineer?

A Senior Full Stack Software Engineer is an experienced developer responsible for designing, building, and maintaining both front-end and back-end systems in web or software applications. They work with a variety of technologies, frameworks, and databases to ensure seamless functionality across the entire software stack. In addition to coding, they often provide technical leadership, mentor junior developers, and contribute to architectural decisions. Their role requires strong problem-solving skills, an understanding of best practices, and the ability to collaborate with cross-functional teams to deliver high-quality software solutions.

What does a senior full stack software engineer do?

A typical day for a Senior Full Stack Software Engineer involves designing and implementing new features, reviewing and improving code, and collaborating with product managers, designers, and other developers to deliver project goals. You might split your time between writing code for both front-end and back-end systems, participating in daily stand-up meetings, and providing technical guidance to junior team members. The role often requires balancing hands-on development with architectural planning and problem-solving for complex technical challenges. You’ll also frequently interact with stakeholders to gather requirements and provide updates, ensuring alignment throughout the software development lifecycle.

What are the key skills and qualifications needed to thrive as a senior full stack software engineer?

To thrive as a Senior Full Stack Software Engineer, you need deep expertise in both front-end and back-end development, strong problem-solving abilities, and a solid foundation in computer science principles, typically demonstrated by a bachelor’s or master’s degree in a related field. Familiarity with frameworks and languages like React, Angular, Node.js, Python, and proficiency in using cloud platforms, version control systems like Git, and continuous integration tools is crucial, and relevant certifications are an advantage. Exceptional communication, leadership, and teamwork skills help you effectively coordinate with cross-functional teams and mentor junior engineers. These skills ensure you can deliver robust, scalable solutions while driving project success and fostering a collaborative development environment.

What are the most commonly searched types of Full Stack Software Engineer jobs in Mississauga, ON?

The most popular types of Full Stack Software Engineer jobs in Mississauga, ON are:

What are popular job titles related to Senior Full Stack Software Engineer jobs in Mississauga, ON?

For Senior Full Stack Software Engineer jobs in Mississauga, ON, the most frequently searched job titles are:

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Cities near Mississauga, ON with the most Senior Full Stack Software Engineer job openings:

Senior Full Stack Software Engineer jobs near you
Infographic showing various Senior Full Stack Software Engineer job openings in Mississauga, ON as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 11% Part Time, and 4% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $127,719 per year, or $61.4 per hour.

Senior Software Engineer (Full-Stack JavaScript)

Logical Information Machines

Toronto, ON • On-site

CA$90K - CA$132K/yr

Full-time

Re-posted 11 days ago

Key responsibilities

  • Develop full-stack web applications using Vue.js, Nuxt 3, TypeScript, Node.js, and AWS.

  • Build and maintain server-side rendered and universal web applications, including routing, hydration, caching, browser behavior, and performance considerations.

  • Create reusable front-end components, contribute to component libraries, and support production-quality delivery through testing, debugging, monitoring, accessibility, SEO, security, and performance improvements.

Job description

About Morningstar

Morningstar unites problem solvers with a clear goal: helping investors achieve their financialobjectives. As a leading investment research and data company, we stand out by how we apply our insights to serve a broad range of users. Our independent investment research, powered bycutting-edgetechnology and design, provides tailored solutions that meet users' needs. Witha strong foundationin data and innovation, we deliver comprehensive services to investors worldwide - empowering better decisions for individuals and those managing money for millions.

The Role

We are seeking a Senior Software Engineerwith full-stack JavaScript experience to join the Central Technology Web Development team in support of Morningstar's Corporate Marketing. This position will be part of an engineering team focused on updating Morningstar's web-based marketing platforms. The position includes the development of new systems, maintenance, and improvement of existing applications. Candidates should have solid software engineering experience in building commercial-grade web-based applications using modern frameworks.

Location: Toronto, ON (We follow a hybrid policy of 4 days onsite)

Job Responsibilities

  • Develop full-stack web applications using Vue.js, Nuxt 3, TypeScript, Node.js, and AWS.
  • Build and maintain server-side rendered and universal web applications, with awareness of routing, hydration, caching, browser behavior, and performance.
  • Create reusable front-end components and contribute to component libraries and design-system patterns.
  • Build and maintain Node.js-based APIs, middleware, and service integrations, including integrations with headless CMS, analytics, personalization, and third-party platforms.
  • Contribute to AI-enabled marketing workflows, including tools that assist with content creation, content migration, schema mapping, personalization, experimentation, and operational automation.
  • Support production-quality delivery through testing, debugging, monitoring, accessibility, SEO, security, privacy, and Core Web Vitals improvements.
  • Troubleshoot issues across browser behavior, API responses, CMS configuration, cloud infrastructure, and build pipelines.
  • Participate in code reviews, technical discussions, documentation, and team planning while continuing to grow technical depth across the stack.

Qualifications

  • 3+ years of professional software development experience, preferably with a focus on full-stack JavaScript or TypeScript.
  • Experience with modern front-end frameworks such as Vue, Nuxt, React, Next.js, Angular, or similar.
  • Familiarity with server-side rendered, statically generated, or universal JavaScript applications.
  • Solid understanding of browser fundamentals, including rendering, JavaScript execution, caching, networking, accessibility, and performance.
  • Strong JavaScript or TypeScript skills, including asynchronous programming, modular code, package management, and modern build tooling such as Vite, Webpack, Rollup, or similar.
  • Experience building or consuming RESTful APIs, Node.js services, middleware, or integrations with external platforms.
  • Familiarity with deploying, debugging, or monitoring applications in AWS or a similar cloud environment.
  • Strong communication skills, curiosity, and the ability to work collaboratively with engineers, product managers, designers, content teams, and other cross-functional partners.

Nice to have

  • Experience with headless Content Management Systems likeContentstack.
  • Experiencedeveloping foror partnering with digital marketing teams,particularly aroundcontent personalization, analytics, or lead generation workflows.
Base Salary Compensation Range$90,489.00-132,711.00

Incentive Target Percentage

12.5% Annual

Morningstar's hybrid work environment gives you the opportunity to collaborate in-person each week as we've found that we're at our best when we're purposely together on a regular basis. In most of our locations, our hybrid work model is four days in-office each week. A range of other benefits are also available to enhance flexibility as needs change. No matter where you are, you'll have tools and resources to engage meaningfully with your global colleagues.

100_MstarResCanad Morningstar Research, Inc. (Canada) Legal Entity

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