# Djordje Stojicevic Djordje Stojicevic is a remote worker on Himalayas, Network Data Analyst at Ookla, based in Serbia. Source: https://himalayas.app/@dstojicevic ```text E2E Network Optimization, Data Analyst Expert. Cross-functional 8 year work experience, including B2B. Supported MNO/Vendor/DaaS/Drive-test companies. ``` | Detail | Value | | --- | --- | | Availability | Looking for a job | | Location | Serbia | | Authorized to work in | Poland, Serbia, United States, United Kingdom, Denmark, Romania, Spain | | Salary expectations | 80k+ EUR | | Job categories | Network Data Analyst, Network Optimization Engineer, Technical Project Manager, Data Analyst, Data Engineer, RF Engineer, Product Analyst, Quality Analyst | | Skills | Network Analytics, Big Data Analytics, Data Visualization, Reporting, Business Intelligence, Mobile Network Optimization, Network Optimization, Drive Test Benchmarking, Technical Project Management, RF Engineering, Microwave Engineering, TCP IP, PCAP, TCP Optimization, L3 Signalling, IMS Signalling, VoLTE, VoNR, RAN Optimization, Transportation Network Optimization, Core Network Optimization, RF Optimization, Data Validation, Data Enrichment, Data Reconstruction, Data Simulation, ETL, SQL, R, C++, C, BASH, Git, AI, Linux, AWS, Amazon Redshift, Amazon Athena, Clickhouse, MongoDB, Tableau, Tableau Prep, Power BI, Superset, QGIS, Wireshark, Actix Analyzer, LiSEQ, NEMO Analyze, NQDI, EDAT, XGMA, TEMS, Packet Tracer, Speedtest Insights, Speedtest Intelligence, CellAnalytics, NetScout, HFSS (High Frequency Structure Simulator), AWR Microwave Office, CST, Advertising, WIPL D, Pspice, LabVIEW, AWAS, Altium, Matlab, MapInfo, PCB Design, 3D EM Simulation, FEM, MOM, S Parameters, VNA Calibration | | LinkedIn | https://https://www.linkedin.com/in/djordje-stojicevic | ## What I'm looking for ```text I'm looking for opportunities in network data analytics & visualization, end-to-end mobile/fixed network optimization, drive-test benchmarking, and technical project delivery, with flexibility across B2B, EOR, or direct FTE employment. ``` ## About ```text Proven industry background across OEM Infrastructure Vendors (Nokia), Network Data Providers (Ookla), and Mobile Network Drive-test Benchmarkers (NETCHECK), supplemented by B2B Service Provision via DIVERGENCE (Est. 2022). Expertise spans Data Analytics, Network E2E Optimization Use-Case Development, Vizualization, Reporting, Network E2E Monitoring and Troubleshooting (Crowdsourcing, Drive/Walk-test, Transport / Backhaul, RAN, IP, CPE / UE domains). At Ookla, I analyzed crowdsourced data for customer solutions, including Speedtest, SDK, Umlaut methodologies, created network optimization use cases, designed dashboards, verified marketing claims/awards and methodology in general. Performed root cause KPI analysis, supported pre/post-sales with advanced analytics (reporting, troubleshooting, verification, trials, poc/pows, demos, workshops) At Nokia, I optimized mobile networks end to end across Transport, RF, RAN, IP, and core domains. Multi-trace PCAP analysis, TCP-O tuning, PL/RTT analysis, failure classification, RF cluster optimization, and global project support. At NETCHECK, I optimized RF/RAN domains of 5G/4G/3G networks using mobile network drive-test data, performing failure classification, feature proposal, RAN parametrization, RF optimization (RET/Azimuth/Power/Capacity tuning) My RF and microwave engineering background strengthens my root-cause analysis from physical-layer design through macro-level network performance. ``` ## Experience ### Network Data Analyst (current) [Ookla](https://himalayas.app/companies/ookla). Aug 2025 - Present ```text Performed crowdsourcing big data analytics, visualization, and reporting for sales and marketing. Developed network optimization use cases and validated data for marketing claims. ``` Skills: Big-Data-Analytics, Visualization, Reporting, Speedtest-Methodology, SDK-Methodology, Data-Aggregation, Data-Validation, Data-Enrichment, Simulation ### Owner, Contractor (current) DIVERGENCE. Sep 2022 - Present ```text Provided consulting services in data analytics, network optimization, and technical project management. Specialized in visualization, reporting, and drive-test benchmarking. ``` Skills: Data-Analysis, Big-Data, Visualization, Reporting, Business-Intelligence, RF-Microwave-Engineering, Technical-Project-Management, Drive-Test-Benchmarking ### E2E Optimization Expert [Nokia](https://himalayas.app/companies/nokia). Oct 2022 - Apr 2025 ```text Conducted big data analytics and visualization for mobile network E2E optimization. Performed TCP/IP PCAP multi-trace analysis and cluster RF optimization. ``` Skills: Big-Data-Analytics, Visualization, Reporting, TWAMP, OSS, OpenSignal, Ookla, Drive-Test, TCP-IP, PCAP, TCP-Optimizer, L3-Signalling, VoLTE, VoNR, RF-Optimization, Cluster-Optimization ### Technical Project Manager Net Check. Nov 2020 - Sep 2022 ```text Managed network optimization tool procurement and evaluation. Oversaw mobile network benchmark drive/walk-test projects across multiple countries. ``` Skills: Project-Management, Network-Optimization, Benchmarking, Risk-Analysis, Stakeholder-Management ### Radio NW Optimization Engineer Net Check. Jul 2019 - Sep 2022 ```text Developed mobile network benchmark methodology and performed drive/walk-test performance analysis. Conducted L3/IMS signalling and PCAP TCP/IP troubleshooting. ``` Skills: Mobile-Network-Performance, Drive-Test, Walk-Test, L3-Signalling, IMS, PCAP, TCP-IP, RAN-Optimization, Rohde-and-Schwarz, Qualipoc, Quality-Assurance ## Education ### University of Belgrade Bachelor's Degree, Telecommunications and Information Technologies. 2014 - 2019 ```text Bachelor's degree in Microwave Engineering with a thesis on the design of a microwave low noise amplifier for Doppler radar. ``` ### Electrical Engineering High School "Nikola Tesla" High School Diploma, Electrical Engineering. 2010 - 2014 ```text Completed secondary education in electrical engineering. ``` ### PRINCE2 PRINCE2 Foundation 6th Edition, Project Management ```text Certified in PRINCE2 Foundation 6th Edition for project management. ``` ### University of Belgrade Master's Degree, Telecommunications and Information Technologies. 2019 - 2022 ```text Master's degree in Microwave Engineering with a thesis on the design of an Orbital Angular Momentum (OAM) microstrip patch antenna array. ``` ## Tech stack - Amazon Redshift - Tableau - Superset - MySQL - PostgreSQL - MongoDB - Microsoft SQL Server - C++ - C - R Language - MATLAB - Wireshark - Linux - Git - Google BigQuery - Amazon Athena - SQL - Clickhouse - Bash - LabVIEW - QGIS - Power BI - Looker Studio To contact Djordje, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire). ## People also viewed - [Thierry Bodog](https://himalayas.app/@thierrybodog): RF Engineer, Comcast / GDIT / Samsung Electronics (SEA) - [Alan Gardner](https://himalayas.app/@alangardner): Freelance Data Analyst & Dashboard Developer, WirePro - [chinmaya choudhury](https://himalayas.app/@chinmayachoudhury): Senior RF Engineer, Global Wireless Solutions, Inc - [Chinmaya choudhury](https://himalayas.app/@chinmayachoudhury1): Senior Data Analyst, Global Wireless Solutions, Inc - [Konstantin Nikolaev](https://himalayas.app/@nikostya): Technical Support Analyst, MegaFon PJSC - [Ali Ali](https://himalayas.app/@aliali7): Field/Network Test Engineer, TruDynamic - [Vota LLC User](https://himalayas.app/@votallcuser): Senior RF Engineer, AT&T - [Tariq Muhammad](https://himalayas.app/@tariqmuhammad1): Project Manager, GSMA - [Aarushi Jalundhwala](https://himalayas.app/@aarushijalundhwala): Sr. Programmer/Analyst, Service Management & Operations, Hughes Network Systems - [Manpreet Kaur](https://himalayas.app/@manpreetkaur38): Technical Services Supervisor, DHL Supply Chain