Full-Stack, Web Development, Software Engineering, Usability, Security, Reliability, Prototyping, Collaboration, Product Design, Front-end, Back-end, Frameworks, Prototyping, Iteration, Usability, Security, Reliability, Product Development, Full-Stack Sol

Here is the rewritten job description in 150 characters, focusing strictly on the role, responsibilities, required skills, and qualifications:

Full-Stack Engineer: Design, build, and maintain end-to-end web systems for external customers and internal teams.
7+ years of experience in full-stack web development, with a focus on usability, security, and maintainability.
Proficient in front-end and back-end frameworks, with experience in rapid prototyping, iteration, and third-party solution evaluation.
Strong understanding of security principles and best practices for protecting sensitive data.
Familiarity with modern front-end and back-end technologies, including containerization and CI/CD.
Experience in balancing speed, security, and reliability in production environments.