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Daby John Romero

@dabyjohnromero

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Full Stack Developer creating efficient solutions for real business problems.

Brazil

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What I'm looking for

I seek a collaborative environment that fosters innovation and offers opportunities for growth.

I am a Full-Stack Developer with a strong background in building system applications that address real business challenges. My experience spans designing database structures, streamlining workflows, and developing full-stack applications. I pride myself on creating tools that enhance efficiency and adaptability to new technologies, ensuring scalable and maintainable solutions.

Currently, I work at Estaleiro Brasfels Ltda, where I have successfully designed and developed multiple internal web applications using ASP.NET Core and SQL Server. My role involves transforming departmental needs into functional systems by defining business rules and optimizing complex queries. Previously, I worked as a freelance developer, where I converted UI/UX designs into responsive websites and built RESTful APIs, showcasing my ability to deliver high-quality projects remotely.

My educational background in Information Communication Technology, combined with hands-on experience in various projects, has equipped me with the skills necessary to tackle diverse challenges in the tech industry. I am passionate about continuous learning and leveraging technology to create impactful solutions.

Experience

Work history, roles, and key accomplishments

Full-Stack Developer & Systems Analyst

Estaleiro Brasfels Ltda.

Feb 2023 - Present (2 years 5 months)

Designed and developed four internal web applications end-to-end using ASP.NET Core and SQL Server, from database design to UI implementation. Single-handedly designed the system's business logic, query optimization, and RESTful APIs, turning department needs into working systems by defining business rules and optimizing complex queries.

ASP.NET Core SQL Server Database Design UI RESTful APIs Query Optimization

Freelance Full-Stack Developer

Remote Projects

Jun 2020 - Present (5 years 1 month)

Converted UI/UX designs into functional websites using React for interactive applications and standard HTML/CSS for simpler projects. Developed responsive interfaces that matched design mockups pixel-perfectly across all device sizes. Built RESTful APIs using Node.js/Express with PostgreSQL for data persistence, implementing JWT authentication.

React HTML CSS UI UX Design RESTful APIs Node Express PostgreSQL JWT

Junior Developer

Gemango Software Services Inc.

Nov 2019 - Present (5 years 8 months)

Debugged and enhanced both front-end and back-end systems, contributing to core project functionality. Developed key components for production applications after proving skills through debugging tasks. Created technical documentation including ER diagrams and business process flows to improve team knowledge sharing.

Front End Developer Debugging Technical Documentation Business Flows

Technical Support

Gentle Child Care Learning Center

Mar 2019 - Present (6 years 4 months)

Provided technical support for software, hardware, and network-related issues. Maintained and updated internal systems and applications used by the company. Assisted with basic network setup and troubleshooting for office connectivity.

Technical Support Technical Troubleshooting

Education

Degrees, certifications, and relevant coursework

University of San Carlos

Bachelor of Science, Information Communication Technology

Graduated with a Bachelor of Science in Information Communication Technology. The program provided a comprehensive understanding of IT principles and practices.