Senior Software Engineer

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 know that Smile.io as a business is in constant evolution - the same is true of our people. We’re here to support each other in our growth, so we talk openly about our career & personal goals. With such a diverse team of people, we know we can offer you the mentorship, tools, and encouragement you need to grow.

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 invite you to join our mission to create technical solutions that securely, reliably, and quickly provide value to our customers. Smile.io is a fully remote company looking to hire within Canada for this remote role. Overlap with core EST working hours is required.

About the Team:

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, optimize program configuration, enhance the shopper journey, and improve the merchant experience. The team takes an iterative and experimentation-based approach to crafting functionality that delights users and feels native to the Shopify, Wix, and BigCommerce platforms.

Everyone at Smile is driven by these core values:

Be Humble - think of the team before thinking of yourself. We have no room for massive egos.

Be Hungry - set hard goals, ask lots of questions and learn every day.

Be Human - show empathy towards others, consider the impact of your decisions on other teams.

About the Role:

Smile.io is seeking a highly skilled and experienced Senior Engineer proficient in both Front-End and 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 role is full-time, remote and requires overlap with EST.

• 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.

• Possess a minimum of 5 years of technical experience in software engineering or a related field, with strong expertise in both Front-end and Back-end technologies.
• Have intermediate to expert-level proficiency in either Ember.js or React (using TypeScript), substantiated by relevant professional work experience.
• Have intermediate to expert-level proficiency in Ruby on Rails, substantiated by relevant professional work experience.
• 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.

• 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.

• Ruby on Rails
• Ember.js
• React
• Typescript
• HTML
• CSS

• Ruby
• Data Layer
• PostgreSQL
• ElasticSearch
• Kafka
• Amazon Simple Queue Service
• Snowflake
• Metabase

• GitHub
• DataDog
• Amazon Web Services
• Terraform
• Vault
• Helm
• Kubernetes

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.