Apply on Kit Job: kitjob.ca/job/2knazq

αlterβiota applies cutting edge biomaterials and computer vision to decarbonize the concrete industry while improving costs, performance and quality for our customers. We are a fast growing, construction tech company that is deeply committed to circular, net zero production of our products while remaining anchored in practical, value-driven solutions for industry.

GENERAL DESCRIPTION OF THE ROLE

As a Senior Backend Engineer, you will architect, develop, and scale high-performance backend systems powering our Digital Aggregate™ platform. This hands-on role requires strong architectural ability, deep SQL expertise, and experience building data-intensive REST APIs. You will thrive in a energetic startup environment, contributing to system design and implementation while collaborating closely with our team.

RESPONSIBILITIES OF THE ROLE

- Design and implement production-grade REST APIs using FastAPI
- Architect clean abstraction layers (domain, services, repositories)
- Develop and optimize PostgreSQL data models for analytics-heavy workloads
- Write advanced SQL queries (window functions, CTEs, aggregations)
- Supporting OLAP-style analytical use cases
- Implement workflow orchestration using Temporal or Apache Airflow
- Contribute to system performance tuning and scalability strategies
- Participate in architectural decision-making
- Maintain high standards for code quality, testing, and documentation

REQUIRED QUALIFICATIONS, EXPERIENCE & SKILLS

- 4+ years of professional backend development experience in Python
- Strong experience building and maintaining REST APIs
- Demonstrated understanding of clean architecture and abstraction principles




- Advanced SQL proficiency beyond basic CRUD operations
- Production experience with PostgreSQL
- Experience using SQLAlchemy (2.0 style preferred)
- Familiarity with analytical query patterns and OLAP concepts
- Experience with asynchronous programming in Python
- Experience with workflow orchestration tools (Airflow, Hatchet, Celery, etc.)
- Ability to work independently in a dynamic startup environment

DESIRED SKILLS

- Experience designing multi-tenant systems
- Experience with data-intensive or analytics platforms
- Familiarity with AI/ML integration into backend systems
- Experience with containerized deployments (Docker)
- Cloud experience (Azure preferred)
- Experience with distributed systems or event-driven architecture

Submit a combined PDF document of your resume, highlighting your relevant experience with a cover letter outlining why you are ready to join our team.

Please send your application to: [email protected]

We offer a competitive salary, ESOP, and health benefits.

We strive to be an organization of inclusion and diversity. Please feel free to indicate in your cover letter if you belong or self-identify in one of the underrepresented groups: Indigenous persons, racially visible persons, persons with a disability, women, and persons of a minority sexual orientation and/or gender identity.

All applications will be reviewed, although only those selected for an interview will be contacted.

Pay: From $80,000.00 per year

Benefits:

- Employee stock purchase plan
- Extended health care
- Paid time off

Work Location: Hybrid remote in Edwardsville, NS B2A 4S6

Apply on Kit Job: kitjob.ca/job/2knazq

📌 Senior Backend Engineer – Python (Edwardsville)
🏢 Alter Biota
📍 Edwardsville