Senior Software Engineer

Sitero is an emerging leader in Clinical services and software solutions for the life sciences industry. We have experience and expertise in a diverse range of therapeutic areas and focus on innovative, technology-enabled solutions that allow our clients to focus on their core strengths. For early phase studies through Phase III clinical trials, our experienced team delivers high-touch services and technology to ensure the safety of all stakeholders across the clinical research community with an emphasis on ethics, compliance, and innovation.

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.

As part of our Engineering team, you will collaborate closely with Product Management, QA, Dev Ops, and Clinical domain experts to deliver compliant, scalable software that supports clinical trials, pharmacovigilance, and patient safety workflows globally.

• Design and develop full-stack features using Python/FastAPI or Django (backend) and React/Type Script (frontend)
• Build and maintain RESTful APIs and GraphQL endpoints consumed by internal and external systems
• Develop reusable, maintainable UI components and integrate them with backend services
• Participate in architecture reviews and contribute to technical design decisions

• Develop microservices following domain-driven design patterns and 12-factor app principles
• Implement secure authentication and authorization using OAuth 2.0, OIDC, and Python security libraries
• Optimize SQL/No
  
  SQL queries, manage database migrations (Alembic), and design efficient data models
• Integrate with third-party APIs, HL7/FHIR standards, and clinical data systems where applicable

• Write comprehensive unit, integration, and end-to-end tests (pytest, React Testing Library, Playwright/Cypress)
• Adhere to 21 CFR Part 11, HIPAA, and GxP standards in all development activities
• Support IQ/OQ/PQ validation activities and maintain traceability between requirements and code
• Participate in code reviews, enforce coding standards, and contribute to static analysis (Sonar Qube, Ruff/Black)

• Work in Agile/Scrum sprints; contribute to sprint planning, grooming, and retrospectives
• Partner with QA on test planning, defect triage, and release readiness
• Document technical designs, API specifications (OpenAPI/Swagger), and runbooks
• Mentor junior developers and support onboarding of new team members

Python 3.10+, FastAPI, Django/Django REST Framework, SQL Alchemy, Celery, Pydantic

React.js, Type Script, HTML5, CSS3/SCSS, Redux / Zustand, Vite/Webpack

PostgreSQL, MySQL, MongoDB, Redis — query optimization & schema design

AWS (EC2, S3, RDS, Lambda) or Azure, Docker, Kubernetes, CI/CD pipelines

OpenAPI/Swagger, OAuth 2.0 / OIDC, Kafka/RabbitMQ, Microservices architecture

pytest, pytest-asyncio, React Testing Library, Playwright/Cypress, Sonar Qube, automated regression suites

Git/Git Hub, JIRA, Poetry/pip, VS Code / PyCharm, Agile/Scrum

• 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, Type Script, 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…