Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 26.06.2026
Verfügbar zu: 100%
davon vor Ort: 100%
Top-Skills
Java
C++
Python
Kafka
REST api
Linux
Jenkins
Git
Robot Framework
OSGI
Spring Boot
Kubernetes
Docker
Scrum
Agile Softwareentwicklung
Gen.AI
Apache Cassandra
Oracle
SQL
NoSQL
CI/CD
JUnit
Shell-Script
Einsatzorte
Städte
Frankfurt am Main (+20km)
Länder
Deutschland, Schweiz, Österreich
Projekte
Rolle
Senior Software Engineer
Projektinhalte
Professional transition period following site closure by Ericsson: focused on technical upskilling and improving German language skills.
Kunde
PMB International GmbH
Einsatzort
Frankfurt (Germany)
Rolle
Senior Software Engineer & Team Lead ? Finance
Projektinhalte
Developed Java microservices for billing and finance/payment domain within Ericsson?s upcoming cloud-native charging platform. Implemented REST APIs and Kafka-based event-driven processing for transaction handling, billing flows and financial reconciliation. Led migration of production services from Java 8 to Java 21, resolving compatibility issues and improving performance and maintainability. Investigated and fixed complex production issues in distributed systems, including concurrency bugs, latency bottlenecks and integration failures. Contributed to containerization and Kubernetes-based deployment of microservices, improving scalability and release consistency. Contributed to automation of 3pp dependency upgrade processes, significantly reducing manual effort, operational risk and release cycle time. Acted as technical lead and mentor for a distributed team (Germany/India), while remaining actively involved in design and implementation.
Kunde
Ericsson Telekommunikation GmbH
Einsatzort
Frankfurt (Germany)
Rolle
Senior Software Engineer & Team Lead ? Billing
Projektinhalte
Developed and maintained billing system components using C++ and Java modules in a large-scale telecom BSS. Implemented backend features across rating and billing workflows, contributing to both core C++ engine and Java-based services. Designed and delivered end-to-end features across SDLC including analysis, implementation, integration and production rollout. Performed debugging and root-cause analysis of production issues in high-volume billing systems. Led agile delivery across a distributed engineering team while actively contributing to code development and reviews. Awarded Ericsson Key Contributor Award (2021) for critical feature delivery for Etisalat Dubai.
Kunde
Ericsson Telekommunikation GmbH
Einsatzort
Frankfurt (Germany)
Rolle
Senior Software Engineer ? Billing
Projektinhalte
Developed core billing and customer-care functionality in C++ for a high-performance telecom BSS. Implemented multi-threaded backend components handling large-scale transaction processing in production environments. Debugged complex production issues using GDB, log analysis and core dump investigation in Linux environments. Developed automated regression testing framework using Robot Framework, improving release stability and reducing manual testing effort. Mentored junior engineers and participated in technical design reviews.
Kunde
Ericsson Telekommunikation GmbH
Einsatzort
Frankfurt (Germany)
Rolle
Software Engineer ? Call Charging
Projektinhalte
Developed and maintained C++ based call charging and rating components for telecom BSS. Performed production debugging and resolution of critical defects in high-availability environments. Tuned performance of rating systems processing large-scale call data records. Delivered on-site technical support for Tier-1 telecom operators including Avea (Turkey) and UMobile (Malaysia)
Kunde
LHS Telekommunikation GmbH
Einsatzort
Frankfurt (Germany)
Aus- und Weiterbildung
Abschluss
Master of Science
Institution, Ort
RWTH Aachen University, Aachen (Germany)
Schwerpunkt
Master Thesis: on request
Abschluss
Bachelor of Science
Institution, Ort
University of Peshawar, Islamabad (Pakistan)
Position
Software Development & Testing | Architecture | Team Lead
Kompetenzen
Top-Skills
Java
C++
Python
Kafka
REST api
Linux
Jenkins
Git
Robot Framework
OSGI
Spring Boot
Kubernetes
Docker
Scrum
Agile Softwareentwicklung
Gen.AI
Apache Cassandra
Oracle
SQL
NoSQL
CI/CD
JUnit
Shell-Script
Produkte / Standards / Erfahrungen / Methoden
Profile Senior Software Engineer with 18+ years of experience delivering large-scale, mission-critical cloud-native backend solutions for telecom billing and financial domains. Strong background in Java and C++, with focus on distributed system architecture, concurrency, performance and system stability. Proven track record of building backend services, implementing business-critical features and improving system reliability in large-scale telecom platforms. Extensive experience working close to production: debugging complex multi-threaded issues, improving reliability and supporting high-availability systems. Recipient of the Ericsson Key Contributor Award for exceptional product ownership and technical leadership, bridging technical delivery with business and stakeholder needs. Skills Frameworks, Platforms & Architecture: OSGi/Karaf, Spring Boot, Kafka, REST api, Linux, Windows DevOps & Automation: CI/CD Pipeline, Jenkins, Git, Kubernetes Testing & Debugging: Junit, Mockito, Robot Framework, GDB/Valgrind Ways of Working: Agile/Scrum, Sprint & Backlog Management, Jira, Confluence Productivity: ?Generative AI/Prompt Engineering to accelerate development
Programmiersprachen
Java
Python
Bash
Shell
C/C++
Datenbanken
Oracle SQL
NoSQL Cassandra
Einsatzorte
Städte
Frankfurt am Main (+20km)
Länder
Deutschland, Schweiz, Österreich
Projekte
Rolle
Senior Software Engineer
Projektinhalte
Professional transition period following site closure by Ericsson: focused on technical upskilling and improving German language skills.
Kunde
PMB International GmbH
Einsatzort
Frankfurt (Germany)
Rolle
Senior Software Engineer & Team Lead ? Finance
Projektinhalte
Developed Java microservices for billing and finance/payment domain within Ericsson?s upcoming cloud-native charging platform. Implemented REST APIs and Kafka-based event-driven processing for transaction handling, billing flows and financial reconciliation. Led migration of production services from Java 8 to Java 21, resolving compatibility issues and improving performance and maintainability. Investigated and fixed complex production issues in distributed systems, including concurrency bugs, latency bottlenecks and integration failures. Contributed to containerization and Kubernetes-based deployment of microservices, improving scalability and release consistency. Contributed to automation of 3pp dependency upgrade processes, significantly reducing manual effort, operational risk and release cycle time. Acted as technical lead and mentor for a distributed team (Germany/India), while remaining actively involved in design and implementation.
Kunde
Ericsson Telekommunikation GmbH
Einsatzort
Frankfurt (Germany)
Rolle
Senior Software Engineer & Team Lead ? Billing
Projektinhalte
Developed and maintained billing system components using C++ and Java modules in a large-scale telecom BSS. Implemented backend features across rating and billing workflows, contributing to both core C++ engine and Java-based services. Designed and delivered end-to-end features across SDLC including analysis, implementation, integration and production rollout. Performed debugging and root-cause analysis of production issues in high-volume billing systems. Led agile delivery across a distributed engineering team while actively contributing to code development and reviews. Awarded Ericsson Key Contributor Award (2021) for critical feature delivery for Etisalat Dubai.
Kunde
Ericsson Telekommunikation GmbH
Einsatzort
Frankfurt (Germany)
Rolle
Senior Software Engineer ? Billing
Projektinhalte
Developed core billing and customer-care functionality in C++ for a high-performance telecom BSS. Implemented multi-threaded backend components handling large-scale transaction processing in production environments. Debugged complex production issues using GDB, log analysis and core dump investigation in Linux environments. Developed automated regression testing framework using Robot Framework, improving release stability and reducing manual testing effort. Mentored junior engineers and participated in technical design reviews.
Kunde
Ericsson Telekommunikation GmbH
Einsatzort
Frankfurt (Germany)
Rolle
Software Engineer ? Call Charging
Projektinhalte
Developed and maintained C++ based call charging and rating components for telecom BSS. Performed production debugging and resolution of critical defects in high-availability environments. Tuned performance of rating systems processing large-scale call data records. Delivered on-site technical support for Tier-1 telecom operators including Avea (Turkey) and UMobile (Malaysia)
Kunde
LHS Telekommunikation GmbH
Einsatzort
Frankfurt (Germany)
Aus- und Weiterbildung
Abschluss
Master of Science
Institution, Ort
RWTH Aachen University, Aachen (Germany)
Schwerpunkt
Master Thesis: on request
Abschluss
Bachelor of Science
Institution, Ort
University of Peshawar, Islamabad (Pakistan)
Position
Software Development & Testing | Architecture | Team Lead
Kompetenzen
Top-Skills
Java
C++
Python
Kafka
REST api
Linux
Jenkins
Git
Robot Framework
OSGI
Spring Boot
Kubernetes
Docker
Scrum
Agile Softwareentwicklung
Gen.AI
Apache Cassandra
Oracle
SQL
NoSQL
CI/CD
JUnit
Shell-Script
Produkte / Standards / Erfahrungen / Methoden
Profile Senior Software Engineer with 18+ years of experience delivering large-scale, mission-critical cloud-native backend solutions for telecom billing and financial domains. Strong background in Java and C++, with focus on distributed system architecture, concurrency, performance and system stability. Proven track record of building backend services, implementing business-critical features and improving system reliability in large-scale telecom platforms. Extensive experience working close to production: debugging complex multi-threaded issues, improving reliability and supporting high-availability systems. Recipient of the Ericsson Key Contributor Award for exceptional product ownership and technical leadership, bridging technical delivery with business and stakeholder needs. Skills Frameworks, Platforms & Architecture: OSGi/Karaf, Spring Boot, Kafka, REST api, Linux, Windows DevOps & Automation: CI/CD Pipeline, Jenkins, Git, Kubernetes Testing & Debugging: Junit, Mockito, Robot Framework, GDB/Valgrind Ways of Working: Agile/Scrum, Sprint & Backlog Management, Jira, Confluence Productivity: ?Generative AI/Prompt Engineering to accelerate development
Programmiersprachen
Java
Python
Bash
Shell
C/C++
Datenbanken
Oracle SQL
NoSQL Cassandra
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