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Ivan Koleski

@ivankoleski

CRO Specialist at Smartcode JS and Full Cart, analyzing eCommerce journeys and developing prioritized conversion experiments.

Serbia

Message

What I'm looking for

I'm motivated to develop a long-term career in CRO through evidence-based experimentation, continuous learning, and high-quality client delivery.

At Smartcode JS, I analyze eCommerce customer journeys and conversion funnels, using Microsoft Clarity heatmaps and session recordings to investigate friction and identify opportunities. I turn those findings into testable hypotheses, PIE-prioritized plans, and CRO roadmaps.

At Full Cart, I contribute to eCommerce optimization initiatives, analyzing customer journeys and developing data-informed recommendations for conversion barriers. Earlier, at Health Oazza, I implemented GA4 and Google Tag Manager tracking and moved from digital analytics into CRO; at Toyo Tire Serbia d.o.o., I contributed to process improvements associated with a 10% increase in production output and a 10% reduction in transport cycle time.

Experience

Work history, roles, and key accomplishments

Current

CRO Expert

Current

Full Cart

Oct 2026 - Present (1 month)

Contributed to eCommerce conversion rate optimization initiatives, analyzing customer journeys and developing data-informed hypotheses to address conversion barriers.

Conversion Rate Optimization Customer Journey Analytics Hypothesis Development Landing Page Optimization Ecommerce

Current

CRO Specialist

Current

Smartcode JS

Oct 2025 - Present (1 year 1 month)

Conducted conversion research and customer journey analysis, using Microsoft Clarity heatmaps and session recordings to identify usability issues and develop testable hypotheses. Prioritized optimization opportunities using the PIE framework and contributed to A/B testing initiatives.

Conversion analysis Customer Journey Analytics Microsoft Clarity Heatmaps Session Recordings Heuristic Evaluation Hypothesis Development PIE Framework A B Testing CRO Roadmapping Landing Page Optimization

Quality Engineer and X-ray Lead

Toyo Tire Serbia d.o.o.

Jun 2023 - Oct 2026 (3 years 4 months)

Progressed from Intern to Quality Engineer and X-ray Lead, contributing to process optimization and automation initiatives. Led improvements to automated X-ray inspection processes and conducted root cause analysis to resolve quality issues.

Process Optimization Automation Root Cause Analysis KPI Monitoring Continuous Improvement MES SCADA X Ray Inspection Quality Assurance

Lead Conversion Analyst

Premium eCommerce Retailer

Jul 2026 - Jul 2026 (0 months)

Conducted eCommerce conversion funnel analysis using GA4, analyzed heatmaps and session recordings, and developed a prioritized CRO roadmap using the PIE framework. Created optimization concepts and A/B testing hypotheses targeting conversion rate and revenue per visitor.

Google Analytics 4 Microsoft Clarity Heatmaps Session Recordings Funnel Analysis Customer Journey Analytics PIE Framework A B Testing CRO Roadmapping Landing Page Optimization

Digital Analytics & CRO Specialist

Health Oazza

Feb 2025 - Oct 2025 (8 months)

Implemented and managed GA4 and GTM tracking frameworks, analyzed conversion funnels, and transitioned into CRO-focused responsibilities. Used Microsoft Clarity to analyze user interactions and developed conversion improvement hypotheses.