About
Founder-led analytics work, organised around business outcomes.
I am Lazar Zivkovic, a data and BI consultant. I work directly with the people who own a reporting, performance or data-quality problem—from the first diagnostic through implementation and, where useful, ongoing maintenance.
Relevant experience
Broad operational BI capability, with specialist payments and iGaming depth.
My work spans payment performance analysis, multi-brand BI, automated monitoring and alerts, recurring operational reporting and data-quality controls.
SQL, Python, Power BI, Tableau, Redshift and cloud data are tools within that work. The actual deliverable is a dependable answer or process: definitions people agree on, a view that exposes the right context and a system that does not rely on an undocumented manual routine.
How I work
Keep the first scope clear and make ownership visible.
A useful engagement can begin with consulting, become a working system and continue only if ongoing support has a clear purpose.
- Frame the decisionClarify the question, users and action the work needs to support.
- Trace the logicMap sources, KPI definitions, freshness, checks and ownership.
- Deliver and validateBuild the analysis or system and test it with the people who use it.
- Hand over or maintainDocument the work and agree whether continuing ownership adds value.
Business identity
A personal public brand with a registered business behind it.
Lazar Zivkovic — Data & BI Solutions is the public brand of Lazar Živković PR Konsultantske aktivnosti u vezi s poslovanjem i ostalim upravljanjem Data BI Solutions Prokuplje.
Malta is a primary market served, not a claimed physical office location. Serbia is served through a separately adapted Serbian site experience.
Have a reporting or performance problem that needs a specialist view?
Share the decision, current process and available data. I will help identify a focused first step.