Jobs in Mississauga, Canada

About the role

Sitero is looking for a skilled Senior Software Engineer to primarily use Python to design, build, and maintain enterprise-grade features across our Life Sciences SaaS platform. You will work across the full technology stack — from crafting clean, responsive React frontends to building robust Python microservices — in a regulated environment that demands high code quality, security, and reliability.

What you'll bring

• Bachelor's or master’s degree in computer science, Engineering, or a related field
• 5–8 years of professional software development experience
• Strong proficiency in Python 3.10+ and backend frameworks such as FastAPI or Django REST Framework
• Solid frontend experience with React.js, TypeScript, and modern CSS (SCSS/Tailwind)
• Hands-on experience with relational databases (PostgreSQL or MySQL) and query optimization
• Familiarity with containerization (Docker) and orchestration (Kubernetes)
• Experience with cloud platforms — AWS or Azure — and CI/CD pipeline management
• Strong understanding of RESTful API design, versioning, and documentation practices
• Working knowledge of Agile methodologies and tools like JIRA
• Experience in Life Sciences, Healthcare IT, or regulated software environments (GxP/21 CFR Part 11)
• Exposure to clinical data standards: CDISC, HL7 FHIR, or EDC/CTMS platforms
• Knowledge of event-driven architecture using Kafka or RabbitMQ