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Djordje Stojicevic

@dstojicevic

E2E Network Optimization, Data Analyst Expert. Cross-functional 8 year work experience, including B2B. Supported MNO/Vendor/ISP/Drivetest companies.

Serbia

Message

What I'm looking for

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.

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

Work history, roles, and key accomplishments

Current

Network Data Analyst

Current

Ookla

Aug 2025 - Present (1 year 1 month)

Performed crowdsourcing big data analytics, visualization, and reporting for sales and marketing. Developed network optimization use cases and validated data for marketing claims.

Big Data Analytics Visualization Reporting Speedtest Methodology SDK Methodology Data Aggregation Data Validation Data Enrichment Simulation

Current

Owner, Contractor

Current

DIVERGENCE

Sep 2022 - Present (4 years)

Provided consulting services in data analytics, network optimization, and technical project management. Specialized in visualization, reporting, and drive-test benchmarking.

Data Analysis Big Data Visualization Reporting Business Intelligence RF Microwave Engineering Technical Project Management Drive Test Benchmarking

E2E Optimization Expert

Nokia

Oct 2022 - Apr 2025 (2 years 6 months)

Conducted big data analytics and visualization for mobile network E2E optimization. Performed TCP/IP PCAP multi-trace analysis and cluster RF optimization.

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 (1 year 10 months)

Managed network optimization tool procurement and evaluation. Oversaw mobile network benchmark drive/walk-test projects across multiple countries.

Project Management Network Optimization Benchmarking Risk Analysis Stakeholder Management

Radio NW Optimization Engineer

Net Check

Jul 2019 - Sep 2022 (3 years 2 months)

Developed mobile network benchmark methodology and performed drive/walk-test performance analysis. Conducted L3/IMS signalling and PCAP TCP/IP troubleshooting.