Senior Backend Engineer

Fullsteam

. Take ownership of a multi-tenant reporting architecture serving over 3000 tenants and millions of processed records .

Posted 9/30/2026full-timeRemote • CanadaSenior💰 CA$116,000 - CA$140,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in backend software engineering with a focus on database architecture, ETL processes, and reporting systems. Proficient in JavaScript, NodeJS, MySQL, and AWS cloud services, with a strong ability to optimize database performance and execute migrations.

Highest-signal resume keywords

Backend Software EngineeringDatabase ArchitectureETL ProcessesJavaScript (ES6+)AWS Cloud Services

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

NodeJSMySQLETLDatabase MigrationOptimized SQLIndex OptimizationREST API DesignData ReplicationData SynchronizationModern ORMs

Soft Skills

Excellent CommunicationEmpathy for Users

Tools & Technologies

AWS LambdaAurora ServerlessDynamoDBSQSSequelize

Industry Keywords

Multi-Tenant ArchitectureReporting SystemsData VisualizationCode ReviewsAutomated Testing

Tech Stack

Tools & technologies

AWSCloudDynamoDBETLJavaScriptMySQLNode.jsSQL

About the role

Key responsibilities & impact

Take ownership of a multi-tenant reporting architecture serving over 3000 tenants and millions of processed records
Architect and execute migration of legacy reporting systems (MSSQL/SSRS) into NodeJS/Aurora MySQL/AWS infrastructure
Build, maintain, and scale ETL processes, data replication processes, and data synchronization engines
Identify and resolve database performance bottlenecks using index optimization, denormalized columns, and rollup tables
Design and build scalable REST APIs for SaaS reporting features
Collaborate with Product to translate reporting requirements into technical implementation plans
Work with Frontend Engineers to deliver data visualizations
Participate in code reviews and write automated integration and unit tests
Ensure backend code and data models follow modern best practices

Requirements

What you’ll need

5+ years of experience in backend software engineering with a direct focus on database architecture, data processing, ETL, and reporting systems
Strong proficiency in JavaScript (ES6+) and NodeJS (Express, Fastify, AWS Lambda)
Advanced hands-on experience with MySQL, modern ORMs (e.g., Sequelize), and writing optimized raw SQL
Direct experience working with AWS cloud services (Aurora Serverless, DynamoDB, SQS)
Demonstrated track record of executing database migrations or legacy system modernizations
Strong understanding of indexing, stored procedures, denormalization strategies, and creating rollup tables for reporting
Extensive experience building ETL processes, data replication, and high-volume data synchronization engines
Experience working with modern ORMs while knowing when to bypass them for raw SQL performance
Excellent verbal and written communication skills
A deep empathy for the user and a desire to learn about how they use Commerce7

Benefits

Comp & perks

Medical
Extended Health and LTD plan
Dental
Vision
RRSP (with employer match)
Health Spending Account
Flexible paid time off