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Summary
Overview
Work History
Education
Skills
Work Availability
Websites
Timeline
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Claire Poertner
Open To Work

Claire Poertner

Aurora,CO

Work Preference

Job Search Status

Open to work
Desired start date: Immediately

Desired Job Title

Backend DeveloperBackend Developer InternFront End DeveloperFront End Developer InternCybersecurity Intern

Work Type

Full TimePart TimeContract Work

Location Preference

On-SiteRemoteHybrid
Location: Aurora, CO, USDenver, CO
Open to relocation: Yes

Salary Range

40/hr - 1000/hr

Important To Me

Work-life balanceCareer advancementPersonal development programsHealthcare benefitsWork from home optionPaid time offCompany CulturePaid sick leave

Summary

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.

Overview

21
21
years of professional experience

Work History

Junior Backend & Full-Stack Developer

Independent Projects & Professional Training
07.2024 - 03.2026
  • Engineered four comprehensive Django REST API projects, including a restaurant ordering system, live weather data wrapper, and CLI task manager, delivering full CRUD functionality and third-party API integration. Implemented robust security measures, including multi-role JWT authentication and OWASP-aligned input validation. Applied secure-by-default coding practices across all application layers—notably in the Little Lemon Restaurant API and STANS navigation system—by mitigating OWASP Top 10 vulnerabilities, such as injection and broken authentication, through granular RBAC and structured error handling. Maintained rigorous technical documentation for every build, including API specifications, database schemas, and system architecture, while utilizing Git feature branching to manage iterative development workflows.
  • Applied secure-by-default coding practices to every project across application layers — implemented in both the Little Lemon Restaurant API (3-tier RBAC: customer/manager/delivery crew) and the STANS navigation system backend: validated against OWASP Top 10 vulnerabilities including injection, broken authentication, and security misconfiguration, JWT-protected endpoints, RBAC with granular role tiers (customer/manager/delivery crew), and structured error handling that never exposes internal state to the client.
  • Maintained structured technical documentation for every project build — covering API endpoint specs, database schema diagrams, and system architecture decisions — using Git feature branching to manage iterative development; a documentation discipline forged in compliance-critical clinical environments where accuracy carried legal accountability.
  • Built and integrated full-stack features across Django backends and React frontends. Connected React frontends to Django REST back-ends to authenticated user dashboards with dynamic data rendering and form submission — including a role-gated dashboard where managers see order queues and customers see their order history, driven by JWT-protected API calls.
  • Used Git and GitHub for version control, feature branching, participated in code review workflows and maintained API documentation, and collaborative development workflows; maintained technical documentation covering API endpoints, system architecture.
  • Applied DevSecOps practices throughout: secure environment variable management, container security hardening, and structured deployment documentation.
  • Developed responsive web applications using JavaScript, HTML, and CSS.

Multi-State Clinical & Relief Roles in Veterinary

Licensed Veterinary Technician
2005 - 2026
  • Managed medication administration and anesthesia protocols in USDA- and state-regulated 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 new 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.

Education

Full-Stack Developer Career Certificate -

Udemy
Denver, CO
11-2025

Meta Back-End Developer Professional Certificate -

Coursera / Meta
Denver, CO
10-2025

Intro To Penetration Testing & Dark Web Operations -

Security Blue Team
Denver, CO
10-2025

Google Cybersecurity Professional Certificates - Network security, risk management, incident response

Coursera / Google
Denver, CO
10-2025

A.S. Degree - Veterinary Technology

San Diego Mesa College
San Diego, CA
2005

A.A. Degree - Graphic Design

Platt College
Newport Beach, CA
1996

Skills

  • Programming Languages: Python, JavaScript, TypeScript, Bash/Shell, SQL
  • Backend Development: Django, Django REST Framework (DRF), RESTful API Design & Development, API Integration, MVC Architecture, Object-Oriented Programming (OOP), Microservices Architecture, Redis, Rate Limiting
  • Databases: PostgreSQL, MySQL, MongoDB, Relational & NoSQL Databases, Database/Schema Design, Django ORM, CRUD Operations
  • DevSecOps & Cloud Infrastructure: Docker, Docker Compose, Kubernetes (K8s), Nginx, Terraform, GitHub Actions, CI/CD, DevOps Principles, Prometheus, Grafana
  • Security: Secure Coding Practices, Authentication & Authorization, Role-Based Access Control (RBAC), JWT, OAuth 20, OWASP Principles, CIA Triad, Security Best Practices
  • Testing & Quality: Pytest, Unit Testing, Test Coverage
  • Tools & Development: Environment: Git, GitHub, Linux/Unix CLI, Visual Studio Code, Python Virtual Environments
  • Frontend: React, HTML5, CSS3
  • Methodologies: Agile/Scrum, Team Collaboration, Software Development Lifecycle (SDLC)

Work Availability

monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Websites

Timeline

Junior Backend & Full-Stack Developer

Independent Projects & Professional Training
07.2024 - 03.2026

Multi-State Clinical & Relief Roles in Veterinary

Licensed Veterinary Technician
2005 - 2026

Full-Stack Developer Career Certificate -

Udemy

Meta Back-End Developer Professional Certificate -

Coursera / Meta

Intro To Penetration Testing & Dark Web Operations -

Security Blue Team

Google Cybersecurity Professional Certificates - Network security, risk management, incident response

Coursera / Google

A.S. Degree - Veterinary Technology

San Diego Mesa College

A.A. Degree - Graphic Design

Platt College

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