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Unified Customer Experience - Consultant - Senior Full Stack Engineer
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RewardOps

Senior Fullstack Developer (Ruby on Rails / React)

Toronto, ON, Canada

Salary Range: $135,000-$140,000 CAD · Full-time

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Job details

Pay: Salary Range: $135,000-$140,000 CAD
Job type: Full-time
Posting language: English
Posted: Oct 27, 2026

Original job description

Job Description:

Senior Fullstack Developer

RewardOps is a dynamic and innovative tech company dedicated to creating cutting-edge SaaS products that empower businesses to thrive in the loyalty space.

We are seeking a highly skilled Senior Fullstack Developer with expertise in Ruby on Rails and React to join our talented development team and help drive our mission to deliver exceptional software products. You will be at the forefront of our team, taking charge of developing the core back-end SaaS application and integration engine. Your close collaboration with Product, Architecture, Development, and QA teams will be pivotal as we aim to enhance our technology, prioritizing scalability and resilience, all while catering to our users' unique use cases. Your work will be instrumental in shaping the success of our platform and its future.

Job Responsibilities

Leadership & Collaboration: Report directly to the Head of Engineering and collaborate with Delivery Managers, Product Managers, Partnerships, Architects, Designers, Developers and QAs to understand requirements and objectives.
Planning: Collaborate with Delivery Managers, Product Managers and Architects to determine feasibility of work, timelines, approaches and identify risks.
Feature Development: Implement and optimize end-to-end features, including API endpoints, background jobs, integrations and accessible front-end interfaces.
Code & Quality Assurance: Maintain high standards of code quality through unit testing and code reviews. Participate in code reviews to maintain code quality and ensure best practices are followed.
Technical Planning: Evaluate the technical feasibility and RoI of proposed features, and participate in sprint planning.
Documentation & Integration: Create technical documentation and integrate features with our React frontend and third-party services.
Performance & Troubleshooting: Continuously improve platform performance and resolve root issues.
Mentorship: Mentor and provide guidance to junior developers.
Continuous Improvement: Stay up-to-date with the latest industry trends and technologies to continually improve our development process.

Job Qualifications

Proven experience as a Fullstack Developer, with a strong focus on React and Ruby on Rails.
Extended experience with modern Web development frameworks, RESTful APIs.
Experience with database systems and writing efficient SQL queries.
Demonstrated ability to integrate with external clients' APIs.
Proficiency in front-end technologies such as HTML5, CSS3, JavaScript, and modern front-end frameworks (React, Ember, etc.).
Experience in Event-driven development and Domain-Driven Design (DDD).
Familiarity with Behavior-Driven Development (BDD).
Excellent problem-solving skills and the ability to work independently.
Strong communication and collaboration skills.
Experience with version control systems (e.g., Git).
Experience with cloud platforms (e.g., AWS, Azure) is a plus.
Knowledge of DevOps practices and tools is a plus (e.g., Kubernetes, Docker).
Prior experience in WCAG accessibility development.

Salary Range: $135,000-$140,000 CAD

Business Unit:

RewardOps

Scheduled Weekly Hours:

Number of Openings Available:

Worker Type:

Regular

More About Jonas Software:

Jonas Software is a leading provider of enterprise management software solutions, serving a wide range of vertical markets including hospitality, healthcare, construction, education, personal care, fitness, leisure, moving and legal services, to name a few. Within these markets, Jonas is comprised of over 65 distinct brands, each a respected leader in its domain.

Jonas’ vision is to be the branded global leader across these verticals and to be recognized by customers and industry stakeholders as the trusted provider of “Software for Life.” We are committed to technology, product innovation, quality, and exceptional customer service.

Jonas Software supports over 60,000 customers in more than 30 countries. We employ over 6,000 skilled professionals, including industry experts and technology specialists. Across our broader network, we support a global workforce of more than 30,000 employees.

Headquartered in Canada, Jonas Software has a global footprint with offices around the world. We’re a 100% owned subsidiary of Constellation Software Inc., based in Toronto, publicly listed on the TSX (CSU.TO), and a member of the S&P/TSX 60 Index.

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More about this job

Responsibilities

You will lead the development of the core back-end SaaS application and integration engine while collaborating with cross-functional teams. Responsibilities include implementing end-to-end features, maintaining high code quality, and mentoring junior developers.

Requirements

The role requires proven experience as a Fullstack Developer with strong expertise in Ruby on Rails and React. Candidates must have experience with modern web frameworks, RESTful APIs, database systems, and cloud platforms.

Skills

Ruby on Rails
React
Fullstack Development
RESTful APIs
SQL
HTML5
CSS3
JavaScript
Event-driven development
Domain-Driven Design
Behavior-Driven Development
Git
AWS
Azure
Kubernetes
Docker

Visa sponsorship

Not detected in the job text

Keywords

Ruby on Rails
React
SaaS
Fullstack Developer
RESTful APIs
SQL
HTML5
CSS3
JavaScript
Event-driven development
Domain-Driven Design
Behavior-Driven Development
Git
AWS
Azure
Kubernetes
Docker
WCAG
Accessibility
API Integration
Unit Testing
Sprint Planning
DevOps
Software Engineering

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