Paid Acquisition · CRO · Finance
YairLeibler
User Acquisition Manager at Lightricks, managing $800K+ in monthly ad spend. Previously FP&A and Corporate Development.
Experience
Lightricks
User Acquisition & CRO Manager
2025 — Present- —Managing $800K in monthly spend, accountable for ROAS and CPA targets while successfully scaling revenue
- —Managing conversion rate optimization, running A/B experiments across landing pages, pricing and payment flows with statistically sound test design
- —Building internal reporting and automation tools with Claude Code, Cursor and custom MCP servers
- —Analyzing campaign and revenue data in BigQuery using SQL and Python
Strategy & CorpDev Analyst
2025- —Supported go-to-market planning for new products
- —Ran due diligence and outreach on potential partnerships
FP&A Analyst
2024- —Owned the monthly financial update and KPI reporting
- —Built company dashboards in ThoughtSpot and rebuilt budgeting and forecasting models in Excel
Ministry of Finance
Analyst, International Affairs Unit
2022- —Economic research and data analysis for the International Affairs Unit
- —Presented findings to senior ministry officials
Cortex Group
Founder & Owner
2014 — 2018- —Started a web and graphic design studio at 16, serving businesses, nonprofits and founders
- —Merged into a consulting firm in 2018
Education
2024 — Present
M.B.A.
Hebrew University of Jerusalem
94
Current average
2021 — 2024
B.A. Economics & Business
Hebrew University of Jerusalem
Honors
Graduated with
Military Service
Infantry Officer
Rank: Captain (Res.)
- 01Combat Operations Officer (Res.)
- 02Deputy Combat Operations Officer
- 03Officer, Platoon Commander
- 04Class Commander
- 05Combat Soldier & Squad Commander
AI Tooling
Data
I pair a finance background with AI-assisted analysis. I use LLMs to write and debug SQL in BigQuery, dig into cohorts and LTV, and find out why a metric moved, all in one sitting rather than over a week of back-and-forth.
Internal tools
I build the dashboards my team uses every week: the week-over-week dashboard for our leadership review, a search-term ROAS report that shows which keywords to cut, and spend trackers that replace hours of manual reporting.
Automation
Every morning a pipeline pulls spend and ROAS for every account, flags anything off pace or off target, and posts a summary to Slack. I start the day knowing where to act.
LLMs & agents
I've built AI agents and Claude skills that connect to our data warehouse and Google Ads through MCP. They break down how each ad creative performed, find wasted search spend and prep the weekly performance review. Every output is checked against the source data before anyone acts on it. A job that took half a day now takes minutes.
Skills
Paid Acquisition & CRO
Google Ads, Apple Search Ads, Optimizely, A/B testing, experiment design
Finance
Financial modeling, FP&A, budgeting and forecasting, Excel
Programming
SQL, Python
Data & BI
BigQuery, ThoughtSpot, Redash, NetSuite
Languages
Hebrew and English, both native