Position: Java Developer
Company: GlobalLogic
Category: Java
Experience required: 3y
English level: upper
Published: 2020-10-01T00:00:00+03:00

**Department/Project Description**
User Data Repository is one of the key components (functions) of the 5G Core Network and its Service Based Architecture. It’s a converged repository (database) of mobile network subscriber information which is used by other 5G Network Functions to store and retrieve the data, such as subscription data, policy related data, application data and subscriber related data that is permitted to be exposed to 3rd party applications.

User Data Repository implemented as cloud native function and provides a HTTP2 based RESTful interface for other NFs and provisioning clients to access the data stored.

You will be working as part of team to develop and enhance Data Repository function with technologies such as containers (Kubernetes), cloud, multi-clustered systems, microservices, continuous integration and continuous delivery.

**Hard Skills:**
Professional proficiency with Java 8 or higher, Spring Boot, scripting
Experience in Cloud native software stacks and execution environments (Kubernetes, Dockers)
Strong development practices including code reviews, unit testing and regression testing
Knowledge of database, functionalities and architecture: SQL and no-SQL

**Soft Skills:**
Good written and verbal English skills
Proactive and self-sufficient
Willing to share knowledge and learn
Good communication skills

**Nice to have/would be a plus:**
Practical experience with C++ or Python
Practical experience with No-SQL and Key Value Databases (Geode, Redis, Cassandra etc.)
High availability concepts/ techniques (replication, leadership election, active/ standby)
TCP/ IP Networking and evolution transport protocols (like QUIC), data networks and IP-based applications (HTTP, HTTPS, ...)
Capacity to investigate and debug complex issues. Including performance tuning experience, troubleshooting, core dump analysis etc.
Knowledge in operating system architectures and capacity to model scalable designs and solutions
Knowledge in Mobile network architecture 4G/ 5G. Interfaces, protocols, functions.

**Job Responsibilities**
Working as a part of development team that is led by management in EU
Working on the User Data Repository functionality design and development
Improve and support the deployed code and configuration
Troubleshoot and analyze problems identified in the created functionality and application environment
Everyday communication with project stakeholders