Hi, I’m Sebastian Arango Villlegas — a versatile and result-driven software engineer with experience in full‑stack development, requirements analysis, functional testing, and server administration. I thrive on building secure, scalable technology solutions and continuously improving processes. I’m proactive and adaptable, with a strong focus on automation, optimization, and delivering robust systems. In information security, I specialize in risk assessment, incident response, and helping teams adopt best practices. I’m passionate about turning complex problems into reliable, maintainable software and collaborating with teams to ship high-quality products.

Sebastian Arango Villlegas

Hi, I’m Sebastian Arango Villlegas — a versatile and result-driven software engineer with experience in full‑stack development, requirements analysis, functional testing, and server administration. I thrive on building secure, scalable technology solutions and continuously improving processes. I’m proactive and adaptable, with a strong focus on automation, optimization, and delivering robust systems. In information security, I specialize in risk assessment, incident response, and helping teams adopt best practices. I’m passionate about turning complex problems into reliable, maintainable software and collaborating with teams to ship high-quality products.

Available to hire

Hi, I’m Sebastian Arango Villlegas — a versatile and result-driven software engineer with experience in full‑stack development, requirements analysis, functional testing, and server administration. I thrive on building secure, scalable technology solutions and continuously improving processes. I’m proactive and adaptable, with a strong focus on automation, optimization, and delivering robust systems.

In information security, I specialize in risk assessment, incident response, and helping teams adopt best practices. I’m passionate about turning complex problems into reliable, maintainable software and collaborating with teams to ship high-quality products.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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Language

English
Fluent
Spanish; Castilian
Intermediate

Work Experience

Full-Stack Developer
December 1, 2024 - Present
Built full-stack solutions using React and Node.js; configured automated pipelines and integrations with Gemini, Copilot, and ChatGPT; managed AWS infrastructure on Ubuntu; worked with SQL Server, MySQL, PostgreSQL, and MongoDB.
Frontend & Backend Developer
September 1, 2025 - February 1, 2026
Developed features across frontend and backend stacks using HTML, CSS, Angular, ASP.NET, TypeScript, and React; worked with Java, Python, .NET Core, Spring Boot, and Node.js; managed databases (SQL Server, MySQL, MongoDB, PostgreSQL) and cloud tooling; contributed to automation and DevOps tasks.

Education

Add your educational history here.

Qualifications

Information Security Specialist
January 11, 2030 - February 16, 2026

Industry Experience

Software & Internet, Professional Services, Media & Entertainment

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
See more