Senior Software Engineer

Sitero

Senior Software Engineer building Python microservices and React interfaces for Sitero’s clinical-trial SaaS platform. Delivering secure, compliant software supporting pharmacovigilance and patient-safety workflows.

Posted 8/5/2026full-timeMississauga • 🇨🇦 CanadaSenior💰 CA$120,000 - CA$150,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in full-stack development with a strong focus on Python, FastAPI, and React, while ensuring adherence to Agile methodologies and best practices in API design and database management. Capable of mentoring junior developers and participating in architectural decision-making within regulated environments.

Highest-signal resume keywords

Python 3.10+FastAPI or Django REST FrameworkReact.js and TypeScriptRESTful API DesignAgile Methodologies

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Full-Stack DevelopmentMicroservices ArchitectureSQL/NoSQL Query OptimizationUnit and Integration TestingDomain-Driven Design

Soft Skills

MentoringCollaborationTechnical Documentation

Tools & Technologies

PostgreSQLMySQLDockerKubernetesAWS or Azure

Certifications & Qualifications

AWS Certified Developer

Industry Keywords

Life SciencesHealthcare ITHL7 FHIRCDISCEDC/CTMS

Tech Stack

Tools & technologies

AWSAzureCloudDjangoDockerGraphQLJavaScriptKafkaKubernetesMicroservicesMySQLNoSQLPostgresPythonRabbitMQReactSQLTypeScript

About the role

Key responsibilities & impact

Design and develop full-stack features using Python/FastAPI or Django and React/TypeScript
Build and maintain RESTful APIs and GraphQL endpoints
Develop reusable UI components and integrate them with backend services
Participate in architecture reviews and technical design decisions
Develop microservices using domain-driven design and 12-factor app principles
Implement secure authentication and authorization
Optimize SQL/NoSQL queries, manage database migrations, and design data models
Integrate third-party APIs, HL7/FHIR standards, and clinical data systems
Write unit, integration, and end-to-end tests
Support IQ/OQ/PQ validation activities and maintain requirements-to-code traceability
Participate in code reviews and enforce coding standards
Work in Agile/Scrum sprints and contribute to planning, grooming, and retrospectives
Partner with QA on test planning, defect triage, and release readiness
Document technical designs, API specifications, and runbooks
Mentor junior developers and support onboarding

Requirements

What you’ll need

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 FastAPI or Django REST Framework
Solid experience with React.js, TypeScript, and modern CSS
Hands-on experience with PostgreSQL or MySQL and query optimization
Familiarity with Docker and Kubernetes
Experience with AWS or Azure and CI/CD pipeline management
Strong understanding of RESTful API design, versioning, and documentation
Working knowledge of Agile methodologies and JIRA
Preferred: experience in Life Sciences, Healthcare IT, or regulated software environments
Preferred: exposure to CDISC, HL7 FHIR, or EDC/CTMS platforms
Preferred: Kafka or RabbitMQ event-driven architecture experience
Preferred: AWS Certified Developer or equivalent cloud certification
Preferred: Python data science ecosystem, AI/ML, or LLM-powered enterprise features
Preferred: open-source contributions or published technical content

Benefits

Comp & perks

Competitive salary
Paid time off
Healthcare benefits through Canada Life
Retirement benefits through Canada Life
Hybrid work arrangement: 2x per week remote from home