Claire Poertner

Backend Developer and Cybersecurity professional with hands-on experience building security-first web applications using Python, Django/DRF, React, and relational databases. Skilled in RESTful API development, database design, secure coding, authentication, and DevSecOps practices using Docker, Kubernetes, and Terraform. Brings 20+ years of experience in high-stakes clinical environments, demonstrating strong analytical problem-solving, attention to detail, compliance, and cross-functional collaboration.

Meta Back-End Developer and Google Cybersecurity certified, with a strong commitment to continuous learning and building reliable, production-ready software.

Junior Backend & Full-Stack Developer at Independent Projects & Professional Training (2024-07 – 2026-08)

• Engineered four Django REST API projects including a restaurant ordering system, weather API, and CLI task manager, implementing CRUD functionality, third-party API integration, JWT authentication, and role-based access control (RBAC).
• Applied secure-by-default development practices across application layers, mitigating OWASP Top 10 risks including injection and broken authentication through input validation
• Built full-stack features connecting Django REST backends with React frontends, including authenticated dashboards, dynamic data rendering, form submission, and role-based views for customers, managers, and delivery personnel.
• Applied DevSecOps practices including secure environment variable management, container security hardening, and deployment documentation using Docker and related infrastructure tools.
• Used Git and GitHub for version control, feature branching, collaborative development, code review workflows, and API documentation.
• Maintained technical documentation covering API specifications, database schemas, and system architecture to support maintainability, security, and consistent development workflows.

Licensed Veterinary Technician at Multi-State Clinical & Relief Roles (2005 – Present)

• Managed medication administration and anesthesia protocols in veterinary facilities, maintaining 100% accuracy in audit-sensitive documentation and procedural logs to ensure full regulatory compliance. This experience translates directly to building secure audit trails, access control logging, and compliance-driven backend systems.
• Triaged patients and interpreted complex diagnostic data in high-pressure emergency settings, utilizing pattern-recognition skills to make time-sensitive clinical decisions. I apply this same analytical framework to debugging cascading API failures, identifying system bottlenecks, and resolving complex data integrity issues across services.
• Demonstrated technical adaptability and resilience by mastering veterinary information management systems and protocols in fast-paced environments.
• Collaborated with multi-disciplinary teams to streamline clinical operations, consistently meeting shift-based performance targets while maintaining high standards of care and documentation accuracy.

Full-Stack Developer Career Certificate in Full-Stack Development – Udemy (2025-11)

Meta Back-End Developer Professional Certificate in Backend Development – Coursera / Meta (2025-10)

Intro To Penetration Testing & Dark Web Operations in Cybersecurity – Security Blue Team (2025-10)

Google Cybersecurity Professional Certificates in Cybersecurity - Network security, risk management, incident response – Coursera / Google (2025-10)

AS Degree in Veterinary Technology – San Diego Mesa College (2005)

AA Degree in Graphic Design – Platt College (1996)