Sr. Full Stack Engineer (Contract)

About Prealize Health

Prealize Health is a predictive analytics company that uses machine learning and clinical expertise to help patients receive timely, proactive care. While healthcare is often reactive, we focus on keeping individuals and families well by anticipating health needs and preventing illness.
Founded on research from Stanford University, our mission is to provide patients, providers, and payers with actionable insights to improve health outcomes and prevent adverse events. Through the expertise of our founders and team, we empower healthcare organizations to adopt a proactive approach to patient care.

The Role

We’re seeking a senior-level contractor to accelerate delivery across our External API + WebApp stack. You’ll work closely with engineering, product, data science, and clinical partners to ship reliable, secure features that support proactive patient care.
This is a hands-on role: you’ll write production code, improve existing systems, and deliver end-to-end work (API → UI → infrastructure) in an AWS serverless environment.

Key Responsibilities

• Backend Services: Build and evolve backend services and APIs as your primary focus. Design, implement, and operate REST APIs and services in Python. Build durable data models and data access using PostgreSQL (or comparable RDBMS). Improve reliability and operability through logging, metrics, tracing, and robust error handling.
• Web Site Features: Deliver and maintain WebApp features by building UI functionality using React (hooks), component-driven development, and modern JS tooling. Implement consistent UI with HTML/CSS and Tailwind CSS. Integrate APIs and handle routing/state patterns as needed (Redux is a plus, not required).
• Infrastructure (IaC): Ship and maintain cloud infrastructure using AWS CDK (TypeScript or Python). Work with AWS serverless services (e.g., API Gateway, Lambda) and deployment pipelines. Contribute to CI/CD and DevOps practices to ship safely and often.

Required Qualifications

• BS/MS in Engineering, Computer Science - or equivalent
• Experience: 7–10+ years of building production software (or equivalent depth of experience).
• Backend Engineering: Strong backend experience with Python and REST API design.
• Database Expertise: Strong SQL experience with PostgreSQL preferred (or another RDBMS), including schema design and query performance tuning.
• Frontend Engineering: Strong frontend experience with React (hooks) and modern JavaScript tooling, alongside strong experience with HTML/CSS and Tailwind CSS.
• Cloud Infrastructure: AWS CDK Infrastructure-as-Code experience (required), coupled with AWS serverless experience and a cloud-native operational mindset.
• DevOps & Testing: Experience with CI/CD, modern DevOps practices, and testing (unit/integration/e2e) using tools such as Pytest, Jest, React Testing Library, Cypress (or equivalents).

Preferred Qualifications

• Industry Knowledge: Healthcare or regulated environment experience.
• Observability: Observability and incident response experience (dashboards, alarms, on-call hygiene).
• Security: Authentication/authorization and secure API design experience.

Diversity, Equity & Inclusion

Prealize embraces diversity and equal opportunity in a serious way. We are committed to building a team that unites a variety of backgrounds, perspectives, and skills. The more inclusive we are, the greater our impact will be.