Senior Backend Engineer

It's fun to work in a company where people truly BELIEVE in what they're doing! Fullsteam is a leading provider of vertical software and embedded payments technology dedicated to helping businesses flourish by providing their customers with seamless experiences. With a dynamic and growing team of over 1,900 employees, we are committed to driving innovation and delivering best-in-class software and payment solutions that empower small and medium-sized businesses across numerous industries. Our purpose is to help our customers grow their businesses and delight their customers. Join us and be a part of a forward-thinking company that values growth, excellence, and the success of our clients. Commerce7, part of the Fullsteam organization, is a customer centric commerce platform in the alcohol industry. Today we are the platform that powers over 2500 leading alcohol brands including Opus One, Caymus, Harlan Estate, William Chris Winery and more. We are looking for a Senior Backend Engineer who is passionate about building high-quality, scalable APIs. You are results-driven, detail-oriented, and thrive on collaboration with a team that values openness and pushing the bar. You will work closely with product, frontend, and QA teams to design and maintain backend systems for our SaaS platform and global partners. Our tech stack is Node.js on AWS, with Aurora, DynamoDB, SQS, and SNS, and we deploy code fast; over 10,000 times per year. Primary Responsibilities: Design and build data-intensive, scalable REST APIs that power core SaaS features for frontend applications and external partners. Collaborate with others on the Development team. Work closely with Frontend Engineers to ensure smooth feature delivery and minimal rework. Partner with QA to ensure features are production-ready. Collaborate with Product to translate product requirements into clear technical implementation plans, identifying the "how" before we ever hit "npm start." Write and maintain automated tests to ensure reliability and support ongoing feature development Participate in code reviews, setting a high bar for code quality, performance, and maintainability. Contribute to technical documentation for APIs, data models, and backend workflows to support cross-team collaboration. Ensure backend code and architecture follow modern best practices, security standards, and internal conventions. Improve, extend, and version existing APIs, ensuring backward compatibility. Define or refactor data models according to evolving needs of the application. Identify and address performance, scalability, and data integrity issues in existing backend systems. Work with strategic agencies and partners to guide them on using our APIs for their customers and brands. Grow a culture of customer centric UI, consistency, and quality Skills & Competencies: Strong sense of ownership for code reliability, performance, and quality in a product environment Excellent verbal and written communication skills, with the ability to collaborate effectively across engineering, product, and QA teams Customer and partner focused mindset, recognizing that APIs are a critical part of the product experience Curiosity and a commitment to continuous learning and improvement. A deep empathy for the user and a desire to learn about how they use Commerce7 Experience with ecommerce or point of sale platforms in a bonus Minimum Qualifications: Demonstrated ability to work independently, manage priorities, and deliver backend features on schedule Proficiency with JavaScript (ES6+) and asynchronous programming patterns. Proficiency with NodeJS, including frameworks such as Express and Fastify. Experience designing, building, and maintaining REST APIs in a production environment. Experience working with AWS cloud services, including Aurora, Dynamo DB, and Lambda. Experience with testing frameworks, including automated integration and unit testing. Able to write direct performant SQL code if required. Salary range: CA$96,208 to CA$146,193 total earnings Fullsteam recognizes that your health and wellbeing are a priority. This is why we offer a full suite of benefits that include: •  Medical •  Extended Health and LTD plan •  Dental •  Vision •  RRSP (with employer match) •  Health Spending Account •  Flexible paid time off This posting is for an existing vacancy and will remain open until filled. Fullsteam supports an inclusive workplace that values diversity of thought, experience, and background. Fullsteam is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, ancestry, age, physical or mental disability, sex, sexual orientation, gender identity/expression, pregnancy, veteran status, marital status, creed, status with regard to public assistance, genetic status or any other status protected by federal, state, or local law.