Senior Software Engineer – APIs, Integrations, External Developer Tooling

🕒 February 4

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Smile.io

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2012

☁️ SaaS

🛍️ eCommerce

🤝 B2B

💰 $1M Seed Round on 2012-05

SaaS • eCommerce • B2B

Smile. io is a leading loyalty platform designed to help Shopify businesses grow revenue by increasing repeat purchase rates and providing exclusive benefits to members and VIP customers. With over 100,000 businesses in 148 countries, Smile. io enables companies to build customizable loyalty programs that are easily integrated into online stores. The platform allows businesses to reward customers through points, VIP perks, and referral incentives, helping to create engaging and rewarding customer experiences. Smile. io is known for its user-friendly, no-code-required customization and seamless integration with other tools for marketing and sales enhancement.

📋 Description

• Designing, building, and evolving public APIs used by external developers and partners • Improving the security, consistency, and usability of Smile’s API surface • Building and maintaining Ruby on Rails services that power integrations and developer tooling • Developing and evolving Smile’s JavaScript SDKs and frontend libraries • Crafting thoughtful developer experiences — from API ergonomics to documentation • Iterating on existing and building new in-house integrations • Partnering with internal teams to help solve for novel merchant use cases • Championing technical discussions, decisions, and trade-offs • Identifying opportunities to raise the bar in areas like architecture, performance, and security • Sharing context, feedback, and knowledge within and across teams

🎯 Requirements

• Experience with **Ruby on Rails** in a professional settings for at least 5 years • Experience designing, consuming, or evolving **APIs** • Be comfortable working across the stack, with experience in **React and TypeScript** • Experience using AI tools to solve real-world engineering problems • Be based in Canada and able to work hours that significantly overlap with **9 AM - 3 PM PT**

🏖️ Benefits

• flexible vacation • remote work allowance • a monthly credit to use at any of the store 100,000+ stores that uses our software.