Backend Engineer III
Fulfillment IQ•Toronto, ON
•CA$105,000 - CA$125,000•Hybrid
About The Position
As a Backend Engineer III, you will build the services, data models, and APIs that power a new greenfield platform at the core of FIQ's supply chain technology. You will write the business logic and processing workflows that everything else depends on, with a focus on data integrity, correctness, and performance. Working alongside the founding engineer and full-stack team, your work will form the reliable backbone the rest of the product is built on.
Requirements
- 4-6 years of experience building backend services and APIs
- Strong, hands-on Python fluency; you will write production Python from day one
- Experience designing and building REST APIs, ideally with FastAPI, Flask, or Django
- Strong relational database skills, including schema design and SQL (PostgreSQL or similar)
- Experience with ORMs and data modeling
- Ability to translate requirements into robust, production-ready backend systems
- Strong engineering fundamentals across performance, reliability, and maintainability
- Comfort operating in a fast-moving, early-stage environment with high ownership
Nice To Haves
- Experience with AI-driven development and AI-assisted engineering workflows
- Experience with LLM-integrated development, including RAG and retrieval-augmented patterns
- Experience with FastAPI, SQLAlchemy, and Alembic
- Experience with multi-tenant systems or complex data models
- Experience building workflow engines, pipelines, or DAG-based processing
- Familiarity with CI/CD, containers (Docker), and cloud infrastructure
- Experience with calculation engines, rules engines, or deterministic data pipelines
- Exposure to logistics, supply chain, fintech, or data-intensive SaaS platforms
Responsibilities
- Design and build backend services, APIs, and data models
- Implement business logic and processing workflows
- Design relational schemas and manage database migrations
- Ensure data integrity, correctness, and API performance
- Write tests and contribute to shared engineering standards
- Integrate with external systems and data sources
- Collaborate closely with full-stack engineers, product, and the platform's technical owner
- Participate in code review and technical design
- Help evolve the backend architecture as the platform scales
Benefits
- Comprehensive health and dental coverage for you and your family
- Competitive paid time off and flexible leave policies
- Retirement savings programs and employer contributions
- Dedicated learning and development budget
- Remote and hybrid work options
- Equipment allowances
- Internet reimbursements
- Business travel coverage
- Employee stock options (ESOP), where applicable
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
