Satellite Monitoring Software Maintenance

We are Ekron System, and bring IT services in Peru, our client is a satellite monitoring enterprise, and they have 5K transport unit. We need Seniors Developers for develop the backlog of the business. The System need receive permanent maintenance. The architecture was development about 10 years ago, and have the following technology: Frontend (25%) with PrimeFaces, JSF, Angular, CSS3. Backend (80%) Java 8, spring boot (API Rest), Mybatis, JPA, Hibernate.Others Experience in Socket, TCP and UDP.