• Design, build, and maintain backend services and APIs supporting user intake, data validation, persistence, and administrative workflows • Own backend architecture decisions, including data models, service boundaries, and integration patterns • Implement secure application logic for systems handling sensitive data (PII/PHI) • Design and maintain versioned, well-documented APIs with explicit data contracts and validation rules • Support mobile and web clients by providing performant, reliable backend services • Contribute to frontend implementation as needed • Build and maintain CI/CD pipelines, infrastructure-as-code, and automated tests • Instrument backend services for observability, reliability, and performance • Operate effectively within public-sector compliance environments • Provide hands-on technical leadership