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Jovan Zatezalo
JZ

About Jovan Zatezalo

Microsoft engineer turned growth consultant, helping founders turn their traffic into sustainable revenue using technical precision, analytics, and proven optimization frameworks.

My Story

My journey began in enterprise software at Microsoft, where I spent years building scalable systems that could handle massive datasets while maintaining performance, reliability, and exceptional user experience. Working on products that served millions of users taught me the importance of technical precision and data-driven decision making.

During my time at Microsoft, I became fascinated with how data could drive business decisions. I realized that while many companies had access to vast amounts of data, they often lacked the technical expertise to convert that data into actionable growth strategies. This gap between technical capability and business growth became my focus.

This realization led me to bridge the gap between technical expertise and business growth. I founded my consultancy with a clear mission: to help founders turn their traffic into sustainable revenue using enterprise-scale data-driven approaches. My goal was to bring the same level of technical rigor and analytical precision that I used at Microsoft to help businesses scale effectively.

Today, I combine my engineering background with deep growth expertise to help businesses build sustainable revenue engines. Every strategy I develop is backed by data, every optimization is tested, and every solution is built to scale. My approach ensures that growth isn't just a buzzword—it's a measurable, repeatable process that drives real business results.

Technical Expertise

Programming & Development

JavaScript/TypeScriptPythonGoReactNode.jsGraphQLRESTful APIs

Analytics & Data

Google AnalyticsMixpanelSegmentSQLBigQueryMachine LearningStatistical Analysis

Growth & Marketing

A/B TestingConversion OptimizationSEOPaid AdvertisingEmail MarketingUser Research

Infrastructure & Tools

AWSDockerKubernetesPostgreSQLRedisApache KafkaMonitoring & Alerting

Certifications

Google Analytics CertifiedAWS Solutions ArchitectMeta Marketing Science CertifiedHubSpot Growth-Driven Design

Education

Master of Science, Computer ScienceUniversity of BelgradeSpecialization in Data Analytics & Machine Learning

Professional Experience

Senior Software Engineer

Microsoft

Led development of analytics and optimization features for Microsoft's enterprise products, focusing on data-driven insights and performance optimization.

2019 - 2022
  • Architected scalable analytics platform serving 10M+ daily users
  • Reduced query response times by 75% through optimization techniques
  • Mentored junior engineers and led cross-functional project teams
  • Implemented machine learning models for predictive analytics

Founder & Growth Consultant

Growth Consulting (Freelance)

Founded consultancy specializing in turning traffic into revenue through data-driven strategies and custom technical solutions.

2022 - Present
  • Generated $2.4M+ in additional revenue for clients
  • Achieved average 187% increase in client ROI
  • Built proprietary analytics tools used by 15+ companies
  • Maintained 95% client retention rate through proven results

Lead Product Engineer

TechStart Inc.

Led product development for a fast-growing SaaS startup, focusing on user experience optimization and growth features.

2017 - 2019
  • Increased user conversion rate by 340% through A/B testing
  • Led team of 8 engineers in product development
  • Implemented real-time analytics dashboard
  • Reduced customer churn by 45% through UX improvements

My Approach

Data-Driven

Every decision is backed by data. Every strategy is measured. Every optimization is tested.

Technical Excellence

Engineering background ensures solutions are built to scale and perform under pressure.

Results-Focused

Success is measured by your business growth, not vanity metrics or theoretical improvements.

Let's Work Together

Ready to turn your traffic into revenue? Let's discuss your growth challenges and explore how my technical expertise can help scale your business.