Product Support (I4)

Skill Categories and Requirements

Development Language & Technologies

• Scripting Languages (Python, Perl, Shell) – Mandatory

Database & ORM

• Relational Databases (MySQL, Oracle, MariaDB) – Mandatory

Testing, Debugging & Monitoring

• Troubleshooting, Analysis & Debugging – Mandatory
• Problem Solving and Root Cause Analysis (RCA) – Desirable
• Monitoring Dashboards (Grafana, Chronograph, Kibana, ELK, Nagios) – Desirable

Network Technology & Protocol Stack

• GSM, 3G/4G/5G Network Nodes and Architecture – Mandatory
• Protocol Stack: SS7/SIGTRAN/IP, SIP/RTP, ISUP, MAP – Desirable
• Additional Protocols: TCAP, SCCP, M3UA, SCTP, SMPP, DIAMETER, RADIUS – Optional

Infrastructure & Deployment Management

• Operating Systems & Virtualization – Mandatory
• Networking & Cluster Management – Desirable
• VAS Product Knowledge – Optional

Best Practices

• Security Guidelines & Tools (e.g., Acunetix, Burp) – Desirable
• Cloud Technologies – Desirable
• Customer Management – Desirable
• Agile Methodology – Optional
• Performance Tuning – Optional

Software Engineering & Programming Fundamentals

• Configuration and Release Management
• Change Control and Management – Optional