About Valentin
English
Fluent
Spanish
Conversational
Russian
Native or bilingual
Experience
- Fjor (Keto Diet App)Lead Data & AI EngineerDIGITAL AND ITNovember 2024 - Today (1 year and 7 months)Alicante, SpainLeading data and AI infrastructure for a consumer health app with 7M+ installs and 500K+ subscribers across keto, carnivore, and Mediterranean nutrition products.KEY SYSTEMS BUILT:→ Production BI platform merging Google Ads, Facebook, Stripe, PayPal,Braintree, RevenueCat, and app data — 90%+ accuracy from day one→ Intraday refresh pipelines updating dashboards every 30 minutes→ Facebook campaign automation: 100+ campaigns/minute creation,auto-scaling of winning campaigns, CPC/CPL threshold monitoring→ Custom monitoring service 'Zolly' — plugin architecture, YAML config,monitors for email delivery, sign-in rates, Mastercard chargebacks→ Attribution pipeline recovering data when UTMs were missing,reducing Google CPS by 10%→ LTV modeling: retained LTV, cohort analysis, LTV by country formarketing target optimisation→ Subscription analytics: automated renewal forecasts, dispute datafor Stripe/PayPal/Braintree, chargeback metrics dashboard→ AI POC: LLM-powered YouTube transcript analysis identifying trendinghealth and nutrition topics for content strategyINFRASTRUCTURE:→ Reduced data loading costs by 95%→ Built custom Facebook connector — 10x faster than previous version→ Refactored staging architecture for performance and maintainability
- RoistatCPO Analytics & Martech ProductsDIGITAL AND ITMarch 2019 - November 2024 (5 years and 8 months)Lead the Product Development in a SaaS Company - market leader in Analytics and Marketing Technology in the CIS region.- Managed the core product - marketing analytics tool including a report builder, 200+ integration and workflow automation. Conducted product discovery, defined roadmaps, wrote feature requirements, managed customer and stakeholder feedback and requests, supported launches, driving a 2x increase in revenue and positioning the company as a CIS market leader in end-to-end marketing analytics- Launched a new ad management product, engaging with customers to identify and validate problems and opportunities, conducting market and technology research, and establishing partnerships with top telecom companies. This became the company's most successful non-core product, creating a new revenue stream with exponential monthly growth.- Analyzed subscription sales and usage data, planning and launching subscription and pricing changes- Performed segmentation and cohort analysis of retention and churn, driving product and UX improvements- Performed deep product usage analysis using event and user data to understand user behavior and ideate hypothesis for growing the product, resulting in an exponential growth of newly-launched product- Quantified and analyzed the process of custom integration creation, finding bottlenecks and creating solutions, resulting in a optimization of the integration process- Created benchmark reports for the digital ads market by analyzing millions of rows of data on ad campaigns performance- Managed the development of internal BI system used by product, sales and marketing teams to track business KPIs- Managed team of 4 Product Managers, Product Designer and Technical Writer- Managed dev department of 30 engineers, team leads, QAs
- SOLOMOTOHead of ProductDIGITAL AND ITAugust 2014 - March 2019 (4 years and 7 months)- Defined product goals, managed the roadmap, analyzed product usage and marketing data, conducted product discovery, defined feature requirements, scaling the product from the MVP stage to 300k users across 3 countries- Obtained an award as the best online advertising automation tool in 2017 based on customer feedback on usability and customer support- Led product development of the platform, resulting in a product valuation of $40 million during the round A investment.- Created an internal Business Intelligence system using Pentaho Data Integration and Tableau, enabling a data-informed approach to product management within the company.
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Education
- Amplitude Foundations - Analytics IBM Certified Developer Cognos 10 BI Metadata Models IBM Certified Solution Developer InfoSphere DataStage v8.5 Certified Pentaho BI Platform Consultant QlikView Developer Certification ver. 10Amplitude Foundations - Analytics IBM Certified Developer Cognos 10 BI Metadata Models IBM Certified Solution Developer InfoSphere DataStage v8.5 Certified Pentaho BI Platform Consultant QlikView Developer Certification ver. 10
- Master's degreeState University2012Master's degree