Senior Front-End Engineer

🛠 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.