J2EE Jobs

deploying the official, open-source backend components and integrating them with various third-party services for full functionality. • mainly our requirements our own infrastructure Self-Hosted with Custom Instance public rebranded messaging app. • Only people who have previously studied and worked on production-style Signal server architecture and structure should communicate • Those who have not previously studied and worked on production-style Signal server architecture and structure should not submit bid proposals. • The official source code is open-source and available on GitHub. • You only need to deploy and configure the Signal server only. The process requires significant technical expertise in server management, Java, database administrat...

Busco desarrollar el backend de un sistema empresarial centrado en el seguimiento de procesos, específicamente el seguimiento de tareas diarias. Qué necesito: • Arquitectura robusta con API REST bien documentada. • Modelo de datos que permita crear, asignar, actualizar y cerrar tareas; registrar tiempos y responsables; generar estados de avance. • Autenticación y control de roles (admin, supervisor, operario). • Endpoints optimizados para reportes en tiempo real y paneles de KPI. • Entorno listo para escalar (idealmente Node.js + Express o Java Spring; estoy abierto a otros stacks si justificas ventajas). • Pruebas unitarias y de integración básicas, así como guía breve de despliegue en cloud (AWS, A...