System Integrator, Solution Analyst, Product Owner, Technology and Agile Coach, Data Analyst

* Definition of data sources
* Data preparation like cleaning, aggregating, anonymization, imputation, definition of quality
monitoring checks
* Feature engineering based on business requirements
* Feature encoding, normalization, selection
* Machine Learning model identification based on business requirements and available data
* Analysis and explanation of outcomes
* Extensive use of Python in Jupyter Notebook with Numpy, Pandas, Scikit-learn, LightGBM, Dask,
Matplotlib, Bokeh packages

Type of business
Software development for telecommunication industry
Positions held Solution Analyst, Product Owner, Technology and Agile Coach, Data Analyst
Main activities and responsibilities
2014 - 2021 Solution Analyst, for Customer Experience Management in mobile networks
* TCP traffic flow analysis of mobile subscribers with Wireshark
* Linux troubleshooting (nfs, services, docker, zuul, eureka, zabbix, nagios) & shell script
development
* OpenAPI validation with Swagger
* Functional validation of Ericsson Expert Analytics solution at Magyar Telekom/T-Mobile Hungary
* Data analysis on live operator data
* Presentation of analysis and software features to customer
* Solution design of Service Operation Center for Iranian mobile operator
* Interviews with local stakeholders and software users
* Requirement analysis and solution design, working in international team
* Greenplum parallel database performance tuning
* Impala and HDFS performance tuning
* Automated UI performance testing with JMeter
* Troubleshooting applications running on Cloudera and Ambari Hadoop distributions
* Tableau dashboard design and development
* UI mockup design with Lunacy for web applications, dashboards

* Management of requirements for international development team with 6-8 members from Spain,
India, Hungary
* Working according to Agile software development methodology
* Creation of decision support materials for stakeholders
* Requirement collection from stakeholders (functional and non-functional)
* Software feature design and roadmap preparation, user story creation
* Grooming with development team, gathering and consolidating estimations
* Software feature prioritization for development team
* Definition of required software quality for development team
* Presentation and demo of software for stakeholders
* Team velocity calculation
* Definition of test cases for UI test, performance test
* Participation in CI/CD setup with Jenkins and Ansible
* Daily use of Atlassian JIRA and Confluence
* Participation in dimensioning and integration of production environments (for Celcom
Malaysia, Telenor Myanmar, DTAC True Thailand, H3G UK, NBN Australia)
* Level-3 support for production environments

* Personal attendance in Delhi & Bangalore offices for 6 months
* Training for 50 new colleagues about telecom, IT architecture, testing methodology used at
Ericsson
* Supporting 3 scrum teams working on software development and testing
* Mentoring 1 scrum team to change to agile way-of-working

Name of employer Self-employed. Contracted by Qualysoft Hungary (www.qualysoft.com) for Ericsson Hungary (www.ericsson.hu
)

Dates & Employer 2007 - 2014 Koonsys Communications

Type of business
Engineering services and software development
Position held Head of IT development and Services (3 employees and 1-10 external project members)
Main activities and responsibilities

* Budget planning
* Project resource planning
* Organize 365/7/24 IT operation

Yettel)
* Project management
* Design and implementation of the software: automatic daily update of network configuration
data for TEOCO Aircom Asset in Oracle database, with PL/SQL stored procedures and Java 8

Austria (Austria, Vienna)
* Analysis of data management for the transmission network infrastructure
* Development of data processing tool (Visual Basic, SQL) to process and merge multiple data
sources

* Design and coordination of development of a public web site for video sharing, live
broadcasting, selling video content - now closed
* Organized the 365/7/24 operation of the public services of the company (web sites,
video streaming)

projects in Turkey, Russia and Bulgaria
* International project team
* User requirement analysis at Turk Telecom (Turkey, Ankara), software deployment and
configuration based on user requirements (Aircom Optima Performance Management)
* Technical support of Koonsys staff: training, remote consulting, software malfunction
analysis, project communication

2008 - 2009 Process analysis of Koonsys Engineering Services and workflow implementation
* Process analysis of the transmission link planning & licensing process, redesign and
documentation
* Software evaluation, and then configuring eGroupware workflow engine

Type of business
Web development and services
Position held Head of IT development
Main activities and responsibilities
2006 - 2007 Coordinating the IT resources of the company (1 employee and max. 5 external
subordinate)
* Project management
* Participation in designing and coding of dynamic web pages with Java, JSP, HTML/JavaScript
* Design and build VOIP solution with IVR and voice message service, based on Asterisk IP Phone
system
* Organized the 365/7/24 operation of the public services of the company (web sites, SMS
aggregation and bulk SMS sending services, IVR and voice message service)

Name of employer Swift Mobile Solutions (now terminated), Budapest, Hungary, http://swift.hu/

Dates & Employer 1999 - 2006 Yettel (former Telenor Hungary, Pannon, Pannon GSM)

Type of business
Telecommunication
Position held
1999 - 2003 Specialist in software tools for planning mobile network

Responsible for the analysis of electronic document handling (scanned paper documents, file
storage), enterprise knowledge management (intranet portals, electronic knowledge share, support
of teamwork). Preparing technical specifications from business requirements specifications. Vendor
management.
* Project manager of data cleaning project: personal data for 2 000 000 customers, data
validation based on scanned documents
* Introduction of Microsoft Sharepoint Portal

2003 - 2006 Vendor manager for electronic document handling and enterprise knowledge management

Main activities and responsibilities

Responsible for the analysis and development of Network Management Systems, GIS (mapping) tools
and interfaces. Preparing technical specifications from business requirements specifications,
close cooperation with the network engineering and the network operation offices. Vendor
management: coordinating the procurement and then the work of external software developers.
* Development of KPI reports on Teradata Data Warehouse, ETL from/to MS SQL and Oracle
* Requirement analysis and coordination of external developers in custom tool development: Cramer
(now Amdocs) Configuration Management, TRX Capacity Planning Tool
* Development of several intranet (web) sites with GIS functionalities: KPI map, Coverage map for
Customer Care, Marketing & Security Office.
* Project management for software development, installation, testing and trainings.

Responsible for the functionality and development of custom made and licensed Network Planning
Tools, and responsible for the procurements of digital maps.
* Evaluation, install and support of several industry specific software tools: MSI Planet,
CellOpt, Siradif, Aircom Enterprise
* Analysis of network measurements and creating software models (radio propagation models,
traffic density models) to predict the network behavior
* Requirement analysis and planning of custom tools supporting the network planning processes,
participation in the yearly budgeting process
* Development of custom software tools and automating of management reports and other KPI reports
(software coding in C, C++, MS Access, SQL/PLSQL)
* Support the development of several Location-based services like CellInfo, location-based
charging, TAXI caller, fleet management.