Description

Telecom Data Engineer | OSS/BSS Expert | 19+ Years

I help telecom operators design, build, and optimize their data pipelines, mediation systems, and OSS/BSS integrations — from architecture to delivery.

With 19+ years working across Tier-1 operators in EMEA (STC, Mobily, Vodafone, Ooredoo, Telenet), I bring hands-on expertise at every layer of the telecom data stack: from high-volume CDR mediation (2.2 billion records/day) and real-time streaming with Kafka, to network inventory, service fulfilment, and TM Forum-aligned order management.

What I can do for you:

Design and implement ETL pipelines and mediation streams for high-volume telecom data

Build and integrate OSS/BSS systems (provisioning, activation, inventory, order management)

Architect real-time data processing solutions using Kafka, Couchbase, and Spring Boot

Deliver TM Forum-compliant solutions (eTOM, TMF640/641) for service and product ordering

Integrate network elements and NMS systems (Nokia, Ciena, Infinera, Alcatel-Lucent) via ONF-TAPI and REST/SOAP

Develop Camunda workflows for service orchestration

Reverse-engineer and modernize legacy BSS/OSS systems toward decoupled, API-first architectures

Technologies: Java/J2EE, Python, Kafka, Couchbase, Hadoop, Oracle/PostgreSQL, Spring Boot, Camunda, REST/SOAP, Shell scripting, Azure, PL/SQL, XML

Domains: Network Inventory · Service Fulfilment · Order Management · Online Charging (Diameter) · Mediation · Provisioning & Activation · Network Element Integration · Data Migration

Industries served: Fixed & Mobile Telecoms, Tier-1 EMEA Operators

Based in Belgium 🇧🇪 — available for remote and on-site missions across Europe.

Languages

Arabic
Native or bilingual
English
Fluent
Dutch
Basic

Workplace preferences

Remote only

Primarily works remotely

Merkator,
Data Engineer / OSS Solution Architect
October 2020 - Today (5 years and 8 months)
Belgium
• • Design and implement ETL pipelines processing 40+ million daily transactions SFM system.
• • Develop data integration solutions with Nokia, Ciena, and Infinera network systems using ONF-TAPI standards
• • Build and optimize real-time data streaming architectures using Kafka for decisioning systems
• • Create data migration strategies and implement database optimization.
• • Develop network trend dashboards and FTTH historical data analytics using Python and SQL
• • Integrate with Salesforce using SOQL/REST API for customer data extraction and analysis
• • Design data models and workflows using Camunda for B2B order management systems
• • Implement DevOps processes for continuous data pipeline deployment and monitoring
• • Perform data flow mapping between order management and southbound systems (NSM, ODS, CRM)
SQL ETL (Extract, Transform, Load) Processes C# External API integration Data integration (ETL, ELT and data warehousing)
Nokia
Senior Data Engineer / Service Delivery Technical Lead
March 2012 - July 2020 (8 years and 4 months)
• • Led data processing for systems handling 2.2 billion CDRs daily, implementing mediation streams and data refinery solutions
• • Designed and developed ETL workflows using Apache Hadoop for subscriber lifecycle management (1.5M requests/day)
• • Built real-time data processing layers using Kafka streaming and Spring Boot microservices
• • Implemented Couchbase NoSQL database solutions for customer information storage and real-time updates
• • Developed data migration tools and frameworks for Oracle, MySQL, and PostgreSQL databases
• • Created automation scripts using Python and Shell for data quality monitoring and validation
• • Built data integration layers between provisioning systems and charging gateways using REST/SOAP APIs
• • Designed data models for Service and Resource Inventory systems, performing gap analysis and schema migrations
• • Developed PL/SQL procedures for high-volume transaction processing (3,000 TPS for online charging)
• • Built data transformation pipelines using XSL and custom Java ETL components
• • Created data reporting systems and analytics dashboards for system health monitoring
Openet
Data Charging Engineer
December 2011 - March 2012 (3 months)
• • Configured and implemented online charging data flows processing 300 TPS
• • Developed data charging records (CCRs) using Diameter protocol
• • Monitored data pipeline performance and optimized throughput