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Hector Segura

@hectorsegura

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Backend developer specializing in REST APIs, data architecture, and integration automation.

Colombia

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What I'm looking for

Busco seguir construyendo backend y APIs REST con foco en arquitectura, datos e integraciones. Me motiva trabajar con equipos que valoren mantenibilidad, seguridad, documentación clara y mejora continua del rendimiento.

I’m a backend developer focused on building reliable APIs and modernizing systems. I’ve led architecture and data migrations that improve integrity, performance, and long-term maintainability.

At CRIONYX, I migrated and normalized databases from non-structured schemas to 3FN/4FN, strengthening data integrity and optimizing query performance. I also redesigned a monolithic backend into a decoupled REST API architecture using MVC, boosting scalability and maintainability.

I develop and deploy ecosystem integrations with leading accounting providers (Siigo Nube, Worldoffice, Alegra y Siesa), automating financial information flows. I also build efficient frontend processing with reactive models in native JavaScript (Vanilla) and decoupled components to handle large files in the browser without degrading user experience.

I set up infrastructure from scratch on Linux, configuring Apache, MySQL, virtual hosts with SSL, and security policies using firewalls and port management. I back my engineering with clear documentation and have built a secure Spring Boot (MVC) messaging application using JWT authentication during my academic projects.

Experience

Work history, roles, and key accomplishments

Current

Backend Developer

Current

Crionyx

Feb 2025 - Present (1 year 4 months)

Led the migration and normalization of databases from unstructured schemas to 3FN/4FN, improving data integrity and query performance. Modernized a monolithic backend into decoupled REST APIs (MVC) and built integrations with accounting providers, while administering Linux/Apache/SSL infrastructure and documenting system and API architecture.

Data Migration REST APIs MVC API Integration MySQL SSL And Firewall Configuration Technical Documentation

Mensajería Web App

Corporación Unificada Nacional de Educación Superior (CUN)

Jan 2024 - May 2024 (4 months)

Developed a web messaging application using Java and Spring Boot under the MVC model. Implemented JWT-based user authentication and managed data storage in SQL using JSON formats to optimize information transfer.

Java Spring Boot MVC JWT SQL Databases JSON Web Application Development Software Security

Backend Developer Junior

Backbone Technologies Latam S.A.S

Mar 2020 - Nov 2023 (3 years 8 months)

Designed and exposed APIs for external clients to enable interoperability across corporate services. Converted complex client requirements into functional technical solutions and trained end users to reduce operational service errors.

API Development Backend Development Requirements Analysis Client Communication Technical Solutions