Mississauga, On Senior javascript full stack developer Jobs – 118 Openings This Week

Senior Frontend Engineer (Full Stack, Frontend-Lead)
BMO Financial —Toronto, ON
- $75,900–$141,900 a year
- JavaScript
- APIs
- Agile
- Tuition reimbursement
- Life insurance
7d
Senior React/.NET/SQL Server Full Stack Developer - Vice President
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Bachelor's
- JavaScript
- No university degree
6h
Senior Manager, AEM Development
Royal Bank of Canada —Toronto, ON
- Full-time
- Azure
- DevOps
- Java
5d
Application Security Consultant - SCA - Global Security
Royal Bank of Canada —Toronto, ON
- Full-time
- Hybrid work
- Azure
- Management
- DevOps
12d
Senior Software Engineer | Remote | AI SaaS Software Role
Process Street —Toronto, ON
- Full-time
- Remote
- Java
- AWS
- JavaScript
- Dental care
- Paid time off
Quick apply
Principal Software Engineer - Platform, Identity and BI
Calabrio —Toronto, ON
- On call
- Remote
- DevOps
- Java
- SQL
- Designated paid holidays
- Disability insurance
Quick apply
Senior Full Stack Developer
Thrive Career Wellness Inc —Toronto, ON
- $100,000–$120,000 a year
- Azure
- AWS
- JavaScript
8h
Senior Full Stack Developer
Softline Technology —Toronto, ON
- Contract
- Azure
- Computer Science
- DevOps
5h

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Senior Frontend Engineer (Full Stack, Frontend-Lead)
BMO Financial —Toronto, ON
A recruiting agency must first have a valid, written and fully executed agency agreement contract for service to submit resumes.
$75,900–$141,900 a year
7d
React Full Stack Developer
Citi —Mississauga, ON
Contribute to the design, documentation, and development of world-class enterprise applications leveraging the latest technologies and software design patterns.
$120,800–$170,800 a year

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Sr. Software Developer
TRITON Canada Inc. —Toronto, ON
Leverage AI-assisted development tools responsibly and effectively to improve development efficiency while maintaining high engineering standards.
$100,000–$125,000 a year
Quick apply
5d
.NET Full Stack Developer
Merrithew International Inc. —Scarborough, ON
Solid understanding of software engineering principles, design patterns, coding standards, and development best practices. Strong proficiency in C#, ASP.
$85,000–$95,000 a year
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Senior Frontend Engineer (Full Stack, Frontend-Lead)

BMO Financial -
Toronto, ON

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Job details

$75,900–$141,900 a year
7 days ago

Qualifications

CI/CD
UI development
Node.js
CSS
React
Git
Test-driven development
Enterprise architecture
UI design
JavaScript
REST
SEO
UX
GitHub
APIs
Agile
UI
Unit testing
GraphQL
Business requirements
Jenkins
TypeScript
HTML

Full job description

Application Deadline:

06/14/2026

Address:

33 Dundas Street West

Job Family Group:

Technology

Design, develop, and maintain scalable, secure, and accessible cloud‑based applications supporting business‑critical digital experiences. The role contributes across the full software development lifecycle, from translating business requirements into technical designs through development, testing, deployment, and ongoing support, in alignment with enterprise architecture and governance standards.

The position is front‑end led, with responsibility for building modern web interfaces using Next.js-based architecture, while integrating with backend and platform services in a regulated environment.

Key Responsibilities

Build end‑to‑end solutions using React, Next.js, and Node.js aligned to enterprise architecture standards
Develop, maintain, and scale complex React applications using modern patterns and best practices
Design and implement reusable, high‑quality UI components and frontend libraries
Apply SSR/SSG patterns to optimize performance, SEO, and user experience
Contribute to frontend architecture and technical design, including component strategy and framework decisions
Translate user and business requirements into technical specifications and design artifacts
Write clean, maintainable, well‑documented TypeScript/JavaScript code
Conduct peer reviews for code, design, and unit tests to maintain engineering quality
Integrate with REST and GraphQL APIs and backend services
Support system design discussions, including security and performance considerations
Collaborate closely with product owners, designers, and engineering teams in an Agile delivery model
Optimize applications for performance across browsers and devices
Stay current with modern frontend and web platform advancements

Qualifications

5-7+ years of frontend development experience
5+ years of hands‑on React experience
3+ years of Next.js experience in production environments
Team lead experience
Strong proficiency in TypeScript, JavaScript (ES6+), HTML5, and CSS
Proven experience as a senior UI / frontend developer applying engineering best practices
Solid understanding of Node.js fundamentals and npm ecosystem
Experience with unit testing and TDD
Hands‑on experience integrating RESTful and GraphQL APIs
Proficiency with Git version control
Working knowledge of CI/CD principles and tools (e.g., Jenkins, GitHub Actions)
Comfortable working in a fast‑paced, Agile environment
Experience supporting public‑facing, high‑traffic applications
Familiarity with CDN‑based delivery and frontend performance optimization

Nice to Have

UI/UX design fundamentals
Experience supporting public‑facing, high‑traffic digital platforms
Exposure to performance optimization and content delivery strategies

Salary:

$75,900.00 - $141,900.00

Pay Type:

Salaried

The above represents BMO Financial Group’s pay range and type.

Salaries will vary based on factors such as location, skills, experience, education, and qualifications for the role, and may include a commission structure. Salaries for part-time roles will be pro-rated based on number of hours regularly worked. For commission roles, the salary listed above represents BMO Financial Group’s expected target for the first year in this position.

BMO Financial Group’s total compensation package will vary based on the pay type of the position and may include performance-based incentives, discretionary bonuses, as well as other perks and rewards. BMO also offers health insurance, tuition reimbursement, accident and life insurance, and retirement savings plans. To view more details of our benefits, please visit: https://jobs.bmo.com/global/en/Total-Rewards

About Us

At BMO we are driven by a shared Purpose: Boldly Grow the Good in business and life. It calls on us to create lasting, positive change for our customers, our communities and our people. By working together, innovating and pushing boundaries, we transform lives and businesses, and power economic growth around the world.

As a member of the BMO team you are valued, respected and heard, and you have more ways to grow and make an impact. We strive to help you make an impact from day one – for yourself and our customers. We’ll support you with the tools and resources you need to reach new milestones, as you help our customers reach theirs. From in-depth training and coaching, to manager support and network-building opportunities, we’ll help you gain valuable experience, and broaden your skillset.

To find out more visit us at https://jobs.bmo.com/ca/en.

BMO is committed to an inclusive, equitable and accessible workplace. By learning from each other’s differences, we gain strength through our people and our perspectives. Accommodations are available on request for candidates taking part in all aspects of the selection process. To request accommodation, please contact your recruiter.

Note to Recruiters: BMO does not accept unsolicited resumes from any source other than directly from a candidate. Any unsolicited resumes sent to BMO, directly or indirectly, will be considered BMO property. BMO will not pay a fee for any placement resulting from the receipt of an unsolicited resume. A recruiting agency must first have a valid, written and fully executed agency agreement contract for service to submit resumes.

Apply Now

Refine Your Search

senior javascript full stack developer jobs in mississauga, on

Senior Frontend Engineer (Full Stack, Frontend-Lead)

Senior React/.NET/SQL Server Full Stack Developer - Vice President

Senior Manager, AEM Development

Application Security Consultant - SCA - Global Security

Senior Software Engineer | Remote | AI SaaS Software Role

Principal Software Engineer - Platform, Identity and BI

Senior Full Stack Developer

Senior Full Stack Developer

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