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oscar27j

Oscar P

@oscar27j

Full Stack Software Engineer y SaaS Architect Java y React

Ecuador
Español, Inglés
Parte de la información aparece en idioma inglés.
Sobre mí
I am a Full-Stack Software Engineer specializing in scalable B2B SaaS architecture and robust web applications. I design high-performance backend systems using Java, Spring Boot, and TiDB Cloud / MySQL, paired with responsive modern interfaces built in React, TypeScript, and Tailwind CSS. Core deliverables: RESTful API development, secure JWT authentication, relational database architecture, microservices, and end-to-end web deployment. Clean code, optimal architecture, and reliable execution."... Lee más

Habilidades

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oscar27j
Oscar P
desconectado • 

Revisa mis servicios

Sitios web personalizados
I will build a custom web application or modern saas platform
DeUSD 80 / proyectoMás información
Desarrollo de multiplataforma
I will develop a custom cross platform mobile app using flutter
DeUSD 100 / proyectoMás información

Porfolio

Experiencia laboral

Freelance

Freelance

Trabajador autónomo • 9 yrs 7 mos

Lead Full-Stack Software Engineer

Jan 2024 - Present • 2 yrs 9 mos

Lead software architect and full-stack engineer developing cloud-native B2B SaaS platforms, including GastroSync (restaurant POS) and NetRacs. • Designed and implemented low-latency RESTful APIs using Java and Spring Boot with stateless JWT authentication. • Architected distributed relational database schemas in TiDB Cloud and MySQL for high-concurrency order processing and stock synchronization. • Built modular, responsive web interfaces with React, TypeScript, and Tailwind CSS.

Programming & Computer Science Instructor

May 2021 - Present • 5 yrs 5 mos

Instructed students in core programming paradigms, Object-Oriented Programming (OOP), algorithmic logic, and database management. • Delivered hands-on labs and evaluations in Python, Java, C, and SQL. • Mentored students in clean architecture, software design principles, and collaborative workflows using Git.

Full-Stack Web Developer

Feb 2023 - Jul 2024 • 1 yr 5 mos

Developed end-to-end web applications for business operations, notably ElectroStock (inventory and warehouse management platform). • Built backend services in Spring Boot to handle stock reconciliation and warehouse tracking logic. • Created responsive management dashboards using React and modern CSS, optimizing operational workflows. • Managed database migrations, query optimization, and test environment deployments.