Mississauga, On Front end web developer react Jobs – 101 Openings This Week

Full Stack Developer
Birdseye Solutions —Mississauga, ON
- Full-time
- Hybrid work
- Java
- Databases
- APIs
Quick apply
2h
Senior Full-Stack Developer (Ruby on Rails/React)
Phoenix —Toronto, ON
- $125,000–$155,000 a year
- Full-time
- AWS
- JavaScript
- In-person
- Paid time off
Senior Java Developer
Konrad —Toronto, ON
- $120,000–$145,000 a year
- Hybrid work
- Azure
- Java
- Databases
- Work from home
- Flexible schedule
Quick apply
FTM / IIB Developer-Global High Value Payments Technology
Scotiabank —Toronto, ON
- Azure
- Computer Science
- DevOps
- Tuition reimbursement
Principal Software Engineer - Platform, Identity and BI
Calabrio —Toronto, ON
- On call
- Remote
- DevOps
- Java
- SQL
- Designated paid holidays
- Disability insurance
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Development Manager
BMO Financial Group —Toronto, ON
- $94,600–$176,000 a year
- Full-time
- Java
- Databases
- AWS
- Tuition reimbursement
- Life insurance
Technical Lead / Lead Developer
BelWo —Toronto, ON
- Hybrid work
- Azure
- Computer Science
- DevOps
RQ00708 - Senior Quality Assurance Specialist
Source Code —Toronto, ON
- $54.25–$81.37 an hour
- Full-time
- Bilingual
- Azure
- DevOps
Quick apply
Lead Software Engineer (JAVA, API)
Sun Life —Toronto, ON
- $90,000–$140,000 a year
- Weekends as needed
- DevOps
- Java
- SQL
12d
Staff Software Engineer
Okta —Toronto, ON
- $160,000–$220,000 a year
- Hybrid work
- Computer Science
- Bachelor's
- JavaScript
Quick apply
Senior Full Stack Developer
Konrad —Toronto, ON
- $120,000–$145,000 a year
- Hybrid work
- Azure
- AWS
- JavaScript
- Work from home
- Flexible schedule
Quick apply
13d

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Full Stack Developer

Birdseye Solutions -
Mississauga, ON

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Job details

Full-time
2 hours ago

Qualifications

Spring Boot
Authentication
Node.js
React
Internet of things
Test automation
Logistics
Responsive design
Java
Databases
REST
Redux
B2B
APIs
UI
Integration testing
SaaS
AI
Python
Debugging

Full job description

Company overview

Birdseye’s mission is to help make the world a safer place!

We are the leader in AI-driven Remote Facility Supervision solutions for the Trucking and Logistics Industry. Our Maximum Telepresence Approach™ delivers cutting-edge, data-driven security and operational insights that create a safer working environment for millions of people every year.

We provide end-to-end, cutting-edge hardware and AI-driven solutions, redefining security beyond traditional gatehouses. By empowering our professionally trained monitoring agents, we achieve 99.99% reporting accuracy in mission-critical security, safety, and operational support -24/7/365- for some of the world’s largest logistics facilities, as well as small and medium-sized businesses.

If you're ambitious, thrive in a fast-paced environment, and align with our ICARE values, Birdseye will be the perfect fit for you. If you’re wondering what the world will look like in 10 years - join our Team!

Role

We are looking for a Full Stack Developer who can build production software across the front end and back end.

This needs to be an AI-native developer. We are not looking for someone who has merely tried ChatGPT, Copilot, or Claude. You should have fundamentally changed how you develop software using agentic tools such as Claude Code, Cursor, or equivalent tools. The candidate must be strong with React and Redux on the front end and Java with Spring Boot on the back end. You should also be productive with either Node.js or Python.

Technology profile

Front end

Strong production experience with:

React
Redux
Responsive web applications
Component-based interface design
Complex state and workflow management
API integration
Automated front-end testing

React and Redux depth is particularly important. The candidate should understand how to keep state, components, and user workflows maintainable as an application grows.

Back end

Strong production experience with:

Java
Spring Boot
REST APIs
Service and business-logic design
Relational databases
Authentication and authorization
Integration and automated testing
Production troubleshooting

You should also be productive with at least one of:

Node.js
Python

Java and Spring Boot remain the primary back-end requirement. Node.js or Python expands the candidate's ability to build supporting services, automation, developer tooling, tests, and integrations.

AI-native engineering

This is a must-have, not a nice-to-have.

The candidate should use AI throughout the entire software-development lifecycle, including:

Turning requirements into specifications
Exploring and understanding existing codebases
Evaluating architecture and implementation options
Writing and refactoring code
Reviewing code and pull requests
Creating automated tests
Performing QA
Reproducing and debugging defects
Writing technical documentation
Preparing and validating releases

Your AI toolbox should extend beyond autocomplete inside an IDE. You should be comfortable using agentic command-line tools, repository-level instructions, automated browser and test tooling, and other development capabilities outside the traditional IDE.

You should understand how to:

Break substantial work into bounded assignments for subagents
Run independent investigations or implementation tasks in parallel
Give each agent the right context and constraints
Manage dependencies between agents
Reconcile multiple outputs into one coherent implementation
Identify conflicting assumptions or missing integration points
Manage the context window deliberately
Summarize long-running work without losing important decisions
Recognize when context has become stale or overloaded
Validate AI-produced work before it reaches production

The candidate remains accountable for everything that AI produces. AI mastery does not replace technical judgment.

What you would own

Front-end implementation: Build clear, responsive React and Redux interfaces for complex operational workflows.
Back-end implementation: Build APIs, integrations, and business logic using Java and Spring Boot.
AI-native execution: Use agents throughout specification, implementation, review, testing, debugging, and documentation.
Automated quality: Create meaningful unit, integration, API, and front-end tests.
Production readiness: Consider failure handling, observability, security, performance, and maintainability before release.
End-to-end delivery: Stay responsible for the capability after the initial code is written, including integration, release, production verification, and defect resolution.

Must-have experience

The ideal candidate has:

7+ years of professional software-development experience
Mastery of an agentic development tool such as Claude Code or Cursor
Practical experience using AI for specifications, coding, reviews, QA, automated testing, debugging, and documentation
Experience orchestrating subagents or parallel AI workflows
A strong understanding of context-window management
The technical judgment to verify, correct, and take ownership of AI-generated work
Strong production experience with React and Redux
Strong production experience with Java and Spring Boot
Professional experience with either Node.js or Python
Experience building and operating customer-facing web applications
Experience with APIs, databases, integrations, and automated testing

Strong preference

Deep front-end experience with complex operational interfaces
Redux Toolkit or Redux-Saga experience
Material UI, DevExpress, or similar component-framework experience
B2B SaaS or recurring-revenue product experience
Cloud-native application experience
Experience with distributed services or event-driven workflows
Experience with automated browser, API, integration, and contract testing
Production observability and incident-response experience
Experience in logistics, security, IoT, video, computer vision, or workflow automation
Created reusable AI instructions, agent workflows, development guardrails, or evaluation methods

This role will require the candidate to complete background checks (includes but not limited to: references, educational verification, criminal check, credit check - where applicable). Certain roles may also require testing.

#LI-Hybrid

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front end web developer react jobs in mississauga, on

Full Stack Developer

Senior Full-Stack Developer (Ruby on Rails/React)

Senior Java Developer

FTM / IIB Developer-Global High Value Payments Technology

Principal Software Engineer - Platform, Identity and BI

Development Manager

Technical Lead / Lead Developer

RQ00708 - Senior Quality Assurance Specialist

Lead Software Engineer (JAVA, API)

Staff Software Engineer

Senior Full Stack Developer

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