01
Office Assistant (Billing & Payments) — Claro Dominicana
Handled daily cash transactions exceeding USD 3,000, supported customer service operations, processed payments, and maintained accurate billing workflows in a high-volume environment.
Leonibel
Segura
I build reliable backend systems and product experiences that solve real business problems.
Full-stack developer focused on APIs, databases, and scalable web products. I bring clear communication, practical problem-solving, and careful engineering to every project.
Go Java Spring Boot PostgreSQL REST APIs Docker
01 / Track record
Experience
and grown
-
- 02
Web Developer — Gerdom S.A
Managed database administration and backend logic for web applications, built performance-focused website features, and contributed to the core platform that supported ad-serving traffic demand.
- 03
Freelance Web Developer
Developed and maintained custom websites and web applications, implemented backend logic, databases, and APIs based on client requirements, and collaborated closely with clients to deliver maintainable solutions.
02 / Selected work
Featured projects
and experiments
01 GET /posts 200 OK
Editorial platform
Go PostgreSQL Backend API
MyTechBlog.dev
High-performance technical blogging platform built with Go and PostgreSQL, focused on backend scalability, efficient data retrieval, and modern content publishing workflows.
Explore project 02 short / e607ba72
Infrastructure tool
Go Security Algorithms System Design
Cuurt.cc
Scalable URL shortener with encrypted redirects and custom Base62 encoding, designed to optimize lookup performance and keep the service efficient under traffic demand.
Explore project 03 $ pgg run --fast
Developer utility
Go CLI Automation Developer Tools
pgg-cli
Terminal-first CLI tool created to automate repetitive development tasks, including command parsing, flags, and file system operations to improve developer productivity.
Explore project 04 vault / encrypted
Security product
Security Product Backend Privacy
SaveMyPass.dev
Secure password management application centered on zero-knowledge principles, protected storage, and user-friendly credential handling.
Explore project 05 sensor_04 / online
Monitoring system
Java Spring Boot REST Monitoring
Secure Studio
Spring Boot backend API for sensor management and real-time monitoring, designed for operational visibility and service scalability.
Explore project