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Full Time Shopify Developer Jobs in Toronto, ON (NOW HIRING)

Smile.io

Senior Front-End Engineer

Toronto, ON · Remote

... developer happiness. We believe small and agile empowered teams can ship products with the highest ... This is a full-time remote role working in Canada, Monday to Friday, with significant overlap with ...

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Infographic showing various Full Time Shopify Developer job openings in Toronto, ON as of August 2026, with employment types broken down into 84% Full Time, 4% Part Time, and 12% Contract. Highlights an 80% Physical, 7% Hybrid, and 13% Remote job distribution.

Senior Front-End Engineer

Smile.io

Toronto, ON • Remote

Full-time

PTO

Re-posted 24 days ago

Job description

Smile.io is the world's largest loyalty platform, providing easy-to-use reward programs that help scaling ecommerce brands transform one-time sales into repeat purchases from loyal customers. Over 100,000 brands use Smile to turn transactional purchases into passionate repeat shoppers.
 
We currently power over 100,000 rewards programs, reaching more than 500 million customers, and serving 1 million API requests per hour. Our primary stack is Ruby on Rails, Ember.js, and React.
 
The engineering team at Smile.io believes in being proud of your code, owning what you ship, and embracing new tools to increase developer happiness. We believe small and agile empowered teams can ship products with the highest impact.
 
We are looking for a highly skilled and experienced Senior Full Stack Engineer with specialization in Front-End development and a solid understanding of Back-End development to join our dynamic team. As a key member, you'll play a crucial role in designing, constructing, and maintaining our shopper-facing applications and merchant-facing program management tools, ensuring their quality, reliability, scalability, and performance. You will actively participate in running experiments and building incrementally, working in an agile environment to drive innovation and deliver outstanding outcomes.
 
This is a full-time remote role working in Canada, Monday to Friday, with significant overlap with 9 AM - 3 PM EST.
 
About the Program Squad
The Program Squad is a team that spans the entire technical stack, and is focused on providing the functionality merchants need to create and manage effective loyalty programs. They are responsible for building and maintaining features that influence repeat purchase rates, optimizing program configuration, enhancing the shopper journey, and improving the merchant experience. The team takes an iterative and experimentation-based approach to crafting functionality that delights users and feels native to the Shopify platform.
What You'll Work On
  • Write, test, instrument, document, and maintain software for Smile.io.
  • Review code and provide thoughtful, constructive feedback for your team.
  • Collaborate closely with Product, Design, and Engineering teams to build new features.
  • Support a highly available service used by millions of users on a daily basis. Champion productive technical discussions and foster collaboration within the team.
Our Tech Stack
  • User Facing Applications:
  • Ruby on Rails
  • Ember.js
  • React
  • Typescript
  • HTML
  • CSS
 
  • Services:
  • Ruby
  • Data Layer
  • PostgreSQL
  • ElasticSearch
  • Kafka
  • Amazon Simple Queue Service
  • Snowflake
  • Metabase
 
  • Environment & Infrastructure:
  • GitHub
  • DataDog
  • Amazon Web Services
  • Terraform
  • Vault
  • Helm
  • Kubernetes
Who You Are
  • Possess a minimum of 5 years of technical experience in software engineering or a related field, with senior-level expertise in Front-End development and hands-on experience across the full stack.
  • Have expert-level proficiency from professional work experience in modern Front-End frameworks (Ember.js and/or React using TypeScript)
  • Have working proficiency in back-end development, with experience building, maintaining, and debugging server-side systems.
  • Have experience with back-end frameworks or languages (e.g., Node.js, Python, Ruby on Rails etc.)
  • Have experience using AI tools to solve real-world engineering problems: improving developer productivity, code quality, and product outcomes.
  • Curious, adaptable, and excited about how AI is reshaping software development.
  • Skilled in utilizing observability tools such as DataDog and Grafana to troubleshoot multi-system level issues effectively.
  • Experienced with Postgres or similar databases.
  • Experienced in building and maintaining high-traffic systems.
  • Experienced in test automation practices.
  • Familiar with agile methodologies and the ability to thrive in a fast-paced environment.
You'll Be Successful In This Role If You
  • Care deeply about writing maintainable code
  • Communicate clearly and thoughtfully in writing
  • Have good product instincts and can balance quality, scope, and speed
  • Prefer pragmatic, iterative decision-making over perfectionism
  • Are comfortable learning through research and hands-on problem solving
  • Know when to ask for help and when to push forward independently
  • Care about crafting delightful user and developer experiences
  • Are excited about how AI is reshaping software development and the potential it unlocks
Nice to Have (But Not Required)
  • Ruby on Rails experience is highly valued but not required.
  • Experience developing apps for the Shopify platform, including familiarity with Shopify APIs.
  • Hands-on experience with Amazon Web Services, Docker, Kafka, and/or GraphQL.
  • Understanding of database optimization techniques, including indexing, various types of locks, and strategies for optimizing slow queries.
  • Experience in mentoring and fostering the professional growth of junior colleagues.
  • Deep experience crafting high-quality, accessible, and performant Front-End user experiences at scale.
You'll Enjoy Working With Us If You
  • Are open to trying new things, being wrong, and learning from mistakes
  • Prefer collaboration and shared success over individual heroics
  • Want to move fast, deliver real value, and own the progress of your work
  • Look for opportunities to improve how work gets done - for yourself and others
 Compensation & Benefits
  • Base Salary: $150,000 CAD - $160,000 CAD
  • In addition, our generous total rewards package includes things like flexible vacation, a remote work allowance, and a monthly credit to use at any of the store 100,000+ stores that uses our software.
  • Check out our careers page to learn more.
Why Smile?
 
Smile is a remote-first company built on trust, ownership, and continuous improvement. We believe great work happens when people feel supported, challenged, and empowered to do their best work.
 
You can learn more about our culture, values, and benefits on our careers page.

Our Commitment to Candidates:
At Smile, we understand that finding a new role is challenging and that self-doubt or imposter syndrome can prevent you from applying to a role, don't let it! You have a ton to offer and we want you to feel encouraged to apply, even if you don't check all of the boxes. If you are passionate about eCommerce and helping merchants grow through loyalty and reward, connect with us. 

At Smile, we rely on a range of backgrounds, experiences, and ideas. We value diversity, and we're proud to be an inclusive, equal opportunity workplace. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. Smile welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.

AI Disclaimer: At Smile, we're strong advocates for using AI to help speed up iteration, increase productivity, and save our human brainpower for the really challenging problems. While we're happy for AI to help you generate or tailor your resume, we'd ask that you please refrain from using AI to answer any of the questions on this application form, or to answer questions during the interview process itself.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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