Role:Senior Java Developer (Telecom / Mediation Support)
Location: Remote India
Technical Skills
Java
- Core Java
- Collections Framework
- Exception Handling
- Multithreading Basics
- Regular Expressions (Regex)
- SQL Fundamentals
Unix / Linux
- Shell scripting
- Cron jobs
- Log analysis using grep, awk, sed
- File permissions and ownership
- File transfer protocols (SFTP / FTP)
Telecom Knowledge
- Understanding of Call Detail Records (CDR)
- Common CDR types:
- Voice
- SMS
- Data
- IMS / MSS / PGW
- Knowledge of mandatory vs optional CDR fields
- Handling duplicate and missing CDR scenarios
Production Support & Debugging
Expected capabilities include:
- Analyzing mediation system failures
- Tracing file flow issues
- Debugging record count mismatches
- Managing Sev-1 incidents
- Coordinating with downstream systems and teams
