Sean Andres Cardona
@seanandrescardona
I build full-stack applications and lead teams from delivery to deployment.
Puerto RicoWhat I'm looking for
At Holberton School, I lead student developer teams building and deploying scalable full-stack applications while managing projects from stakeholder scoping through delivery. I've maintained 100% client retention across projects.
I designed 15+ learning modules across Python, Node.js, React, DevOps, AWS, and GCP, and built Python and SQL dashboards that improved cohort outcomes by 30%. Through code reviews, weekly learning sessions, and workshops, I've mentored 40+ junior engineers.
As a freelance developer, I delivered 10+ web applications for small businesses and startups using React, Node.js, and PostgreSQL. I built REST APIs and microservices, integrated Stripe, Twilio, and SendGrid, and reduced deployment time by 40% with GitHub Actions, AWS EC2, and GCP App Engine.
Earlier, at IPM Medical Group, I supported 100+ users and maintained servers, routers, and switches at 99.9% uptime. I also automated IT maintenance with Python and helped secure HIPAA-compliant systems with firewalls, VPNs, and antivirus tools.
Experience
Work history, roles, and key accomplishments
Software Engineer Team Lead
Holberton School
Oct 2024 - Present (1 year 11 months)
Led cross-functional teams of student developers to architect, build, and deploy scalable full-stack applications, achieving 100% client retention. Designed 15+ project-based learning modules and mentored 40+ junior engineers, improving cohort outcomes by 30%.
Education
Degrees, certifications, and relevant coursework
Holberton School
Certificate, Full-Stack Development
Completed a Full-Stack Development Specialization Certificate, focusing on modern web technologies and software engineering practices.
Holberton School
Certificate, Computer Science
Earned a Foundations Certificate in Computer Science and Software Engineering, covering core programming and engineering principles.
Portland State University
Bachelor of Science, Computer Science and Spanish
Pursued a Bachelor of Science in Computer Science and Spanish, combining technical expertise with language proficiency.
Tech stack
Software and tools used professionally
Availability
Location
Puerto RicoAuthorized to work in
Salary expectations
Job categories
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