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Added 24 mins ago
Back End Developer
VySystems
Toronto, ON
Full-time
Proficiency writing high-quality, well-tested code using one or more languages (e.g., Python, Next.js, React, Golang, C#), building APIs, and building/using databases (e.g., Postgres,…
Added 54 mins ago
Assistant Store Manager - Customer Experience
PetSmart
Maple Ridge, BC
Full-time
Ability to react under pressure and maintain composure.
Added 1 hour ago
Full Stack Engineer
Artech L.L.C.
Toronto, ON
Contract
We are seeking a versatile and driven Full Stack Developer with strong expertise in backend Java development, modern frontend frameworks, and cloud deployment using Red Hat OpenShift. In…
Added 1 hour ago
Java Software Engineer
Artech L.L.C.
ON · Ontario, Canada
Contract
Experience with React for front-end development.
Added 1 hour ago
Dynamics 365 CRM Developer
Alphavima Technologies Inc
ON · Ontario, Canada
Full-time
We're looking for a Dynamics 365 CRM Developer with 5–7 years of hands-on Dynamics 365 CE / CRM development experience to design, build, and support Dataverse solutions for our product…
Added 1 hour ago
Data Engineer
Citylitics
Remote, Canada
Full-time · Remote
Experience building data apps or dashboards end to end, including a backend API and a frontend (e.g., React, TypeScript), is a plus.
Added 1 hour ago
Engineering Student - Software Winter 2027 (12-16 months)
MDA
Brampton, ON
Full-time
We’re on the hunt for a Software Developer Student on our Robotics & Space Operations team at our Brampton office, starting January 2027 for a 12-16 month mandate.
Added 1 hour ago
Software Engineer - New Grad (2026-2027)
Fellow Insights Inc.
Remote, Canada
Full-time · Remote
Engineering Excellence: Build and ship features end-to-end with React/TypeScript, Django/Python, and GraphQL, from API design to polished UI. Write clean, performant, and maintainable code.
Added 1 hour ago
Software Engineer Co-op, Agents
Solink
Remote, Canada
$55,000 to $68,000 CAD / year
Full-time · Remote
You have familiarity with at least one front-end framework (e.g., React).
Added 1 hour ago
React Native Developer
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
Full-time
Design and develop user interfaces for mobile and web applications using React Native.
Added 1 hour ago
React Native Developer
Apptoza Inc.
Toronto, ON
Contract
Role Descriptions: Design and develop user interface components for JavaScript-based online and mobile apps using React Native Build pixel-perfect smooth UIs across mobile platforms and…
Added 1 hour ago
React Native Developer
Apptoza Inc.
Toronto, ON
Contract
Design and develop user interface components for JavaScript-based online and mobile apps using React Native Build pixel-perfect smooth UIs across mobile platforms and leverage native APIs…
Added 1 hour ago
React Native Developer
Pacta Group
Toronto, ON
Contract
We are looking for an experienced React Native Developer to join our team and work on modern web and mobile applications.
Added 1 hour ago
Data Engineer
Citylitics Inc.
Toronto, ON
$70,000 to $80,000 CAD / year
Full-time
Experience building data apps or dashboards end to end, including a backend API and a frontend (e.g., React, TypeScript), is a plus
Added 2 hours ago
Principal Software Developer
Solace Corporation
Ottawa, ON
Full-time
…AI agents and people who receive it the power to immediately react with decisive actions and smart…
Added 2 hours ago
Senior Mobile Developer
BrainRidge Consulting
Toronto, ON
Full-time
…grow, we are seeking a motivated and experienced Senior Mobile…
Added 2 hours ago
Senior Full Stack Developer
LIV-Machobear
Vancouver, BC
$120,000 to $150,000 CAD / year
Full-time
We are currently on the lookout for a skilled senior Full Stack Developer who brings a strong technical background with a focus on front-end development, and a passion for building…
Added 2 hours ago
Développeur·euse WordPress Full Stack / Full Stack WordPress Developer
Evolving Web
Remote, Canada
Full-time · Remote
Expérience approfondie avec les API de l’éditeur de blocs, notamment dans le développement de blocs personnalisés avec React et d’extensions personnalisées
Added 2 hours ago
Senior Software Engineer
Fleetworthy
Edmonton, AB
Senior-level full stack developer with Dev Lead Experience
Added 2 hours ago
Staff Software Engineer, User Targeting
Braze
Toronto, ON
Languages/Frameworks: familiarity with Ruby, Ruby on Rails, TypeScript, React, Sidekiq, and SQL/NoSQL databases
Added 2 hours ago
Senior Software Engineer I, Core Objects
Braze
Toronto, ON
Professional experience with one or more of Ruby, Ruby on Rails, React, Go, SQL, and NoSQL databases, distributed systems, API design/monitoring/best practices
Added 2 hours ago
Director of Engineering
Experis
Toronto, ON · Greater Toronto Area, Canada
$180,000 to $205,000 CAD / year
Full-time
Strong technical background in: Java, Angular, React, or Vue.js, API design and distributed systems
Added 2 hours ago
Staff Software Engineer, User Targeting
Braze
Toronto, ON
Full-time
Languages/Frameworks: familiarity with Ruby, Ruby on Rails, TypeScript, React, Sidekiq, and SQL/NoSQL databases
Added 2 hours ago
Senior Software Engineer I, Core Objects
Braze
Toronto, ON
Full-time
Professional experience with one or more of Ruby, Ruby on Rails, React, Go, SQL, and NoSQL databases, distributed systems, API design/monitoring/best practices
Added 2 hours ago
Software Development Engineer I
Expedia Group
Vancouver, BC
$65,500 to $92,000 CAD / year
Full-time
Look for opportunities to simplify existing code, improve developer experience, and share knowledge with the team.

High Tech Genesis

Senior Front-End / Full-Stack Engineer

Ottawa, ON, Canada

Job type: Contract
Apply by: Nov 1, 2026
Experience: 5+ years of professional software development experience.
Posting language: English
Posted: Oct 2, 2026

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Applications open in a new tab.

Original job description

Job Overview

We are seeking a Senior Front-End / Full-Stack Engineer to build and enhance modern enterprise web applications. This role has a strong focus on React and modern front-end development, with opportunities to contribute across APIs, backend services, and full-stack features.

The ideal candidate is a senior engineer with strong React expertise who can work effectively across the application stack.

Key Responsibilities

Design and develop modern, scalable web applications using React, JavaScript, and TypeScript.
Build reusable, accessible, and maintainable UI components.
Develop intuitive user interfaces and improve workflows, navigation, usability, and overall user experience.
Develop and integrate REST APIs and backend services.
Contribute to backend development using Ruby on Rails, Python, Go, or similar technologies.
Deliver end-to-end features across front-end, backend, APIs, and data.
Troubleshoot and optimize application performance and reliability.
Write automated tests and participate in code reviews.
Collaborate with product managers, designers, UX professionals, QA, architects, and engineering teams.
Participate in Agile/Scrum development and contribute to technical design decisions.

Required Qualifications

5+ years of professional software development experience.
Strong hands-on experience with React, JavaScript, and/or TypeScript.
Strong knowledge of HTML5 and CSS3.
Experience building production-quality web applications.
Experience with REST APIs and backend services.
Experience with at least one backend technology such as Ruby on Rails, Python, Go, Node.js, or Java.
Experience with Git, automated testing, and modern development practices.
Strong understanding of responsive design, web application architecture, and performance.
Excellent problem-solving, communication, and collaboration skills.

Preferred Qualifications

Experience with Ruby on Rails, Python, or Go.
Experience with microservices or distributed systems.
Experience with design systems and reusable component libraries.
Experience with CI/CD, Docker, or cloud platforms.
Knowledge of web accessibility and performance optimization.
Experience with AI-assisted development tools.
Experience working in an Agile/Scrum environment.

Applicants must be legally authorized to work in Canada. Accommodation is available upon request throughout the recruitment process

Apply About employer

More about this job

Responsibilities

Build and enhance scalable enterprise web applications, with a focus on React, reusable accessible UI components, and improved user experience. Develop and integrate APIs and backend services, deliver end-to-end features, optimize performance and reliability, write tests, and collaborate with cross-functional teams.

Requirements

Requires at least five years of professional software development experience, strong React and JavaScript and/or TypeScript skills, and knowledge of HTML5, CSS3, production web applications, REST APIs, and at least one backend technology. Candidates should also have experience with Git, automated testing, responsive design, application architecture, and performance, along with strong problem-solving and collaboration skills.

Skills

React
JavaScript
TypeScript
HTML5
CSS3
REST APIs
Ruby on Rails
Python
Go
Node.js
Java
Git
Automated Testing
Responsive Design
Web Accessibility
Agile/Scrum

Visa sponsorship

Not detected in the job text

Keywords

React
JavaScript
TypeScript
HTML5
CSS3
Ruby on Rails
Python
Go
Node.js
Java
REST APIs
Backend Services
Enterprise Web Applications
Reusable UI Components
Web Accessibility
Responsive Design
Application Architecture
Performance Optimization
Automated Testing
Git
Microservices
Distributed Systems
Design Systems
CI/CD
Docker
Cloud Platforms
AI-Assisted Development
Agile
Scrum
Full-Stack Development

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