Back-End Python Developer

Adastra is seeking a Back-End Python Developer to help build, maintain, and enhance the back-end services that power a promotion planning and price optimization platform. As a core member of the software development team, you will contribute to scalable, high‑performing systems by writing clean, efficient Python code and supporting the ongoing evolution of the platform. This role plays a key part in improving system performance, enabling new features, and supporting reliable, data‑driven decision‑making.
Primary Location:
Toronto, ON
Work Model:
Hybrid 3‑Days Onsite
Employment Type:
Contractor
Responsibilities
Develop, test, and maintain scalable back‑end services and RESTful APIs under the guidance of senior team members
Contribute to code and database optimizations to improve system performance and efficiency
Collaborate with product managers and engineers to implement new features and resolve technical issues
Support the reliability and maintainability of back‑end systems in a production environment
Qualifications, Skills & Experience
3–5 years of experience developing production‑level back‑end systems
Strong proficiency in Python and SQL
Experience building and consuming RESTful APIs
Solid understanding of clean code principles, automated testing, and Git‑based workflows
Experience working in Agile development environments
Strong collaboration skills and ability to work effectively within cross‑functional teams
Good problem‑solving skills with the ability to implement well‑defined solutions and troubleshoot issues
Nice to Have
Experience with cloud environments such as Google Cloud Platform
Familiarity with containerization technologies such as Docker and Kubernetes
Exposure to Domain‑Driven Design and microservices architectures
A growth mindset with interest in learning new technologies and continuously improving technical skills
What We Offer
Opportunity for advancement and career progression
Successful referral program
The opportunity to work with one of Canada’s 50 Best Managed Companies
Satisfaction of working for a reputable company
A flexible, dynamic, and diverse workplace
Equal Opportunity Employer In our commitment to promote fair and equitable treatment of all employees and applicants, Adastra Corporation provides equal employment opportunities for all individuals regardless of age, sex, disability, race, ethnic origin, citizenship, creed, sexual orientation, marital status, or any other ground as described in the Ontario Human Rights Code. Accommodation will be provided during the hiring process.
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