Hi, I'm JAHIRUL ISLAM. I Turn Fragmented Ad Spend Into Scalable Growth.
I am a senior performance marketer and tracking architect managing paid customer acquisition across DTC e-commerce, B2B SaaS, and high-ticket service verticals. Over the past 6+ years, I have stewarded over $4.5M+ in paid ad spend with an average blended ROAS of 3.8x.
While most media buyers operate strictly inside ad dashboards, I combine creative testing frameworks with full-funnel Server-Side Tracking engineering (sGTM, CAPI, BigQuery). This guarantees that your campaigns bid on real, deduplicated data—not browser guesswork.

Career Highlights
Cumulative Ad Spend Managed
Average Blended ROAS
Average CAPI Event Match Quality
Brands & Growth Accounts Scaled
My Growth Philosophy
Clean Signals First
Creative is the Real Targeting
Profit Over Vanity ROAS
Technical & Media Stack
Paid Acquisition & Media Buying
- Meta Ads Manager (ASC, DCT, Broad)
- Google Ads (Search & PMax)
- Google Merchant Center / Margin Feeds
- YouTube Ads & Demand Gen
- TikTok Ads Scaling
Server-Side Tracking & Analytics
- Server-Side Google Tag Manager (sGTM)
- Meta Conversions API (CAPI)
- GA4 Custom Funnels & Dimensions
- Google Cloud Run / Stape Hosting
- BigQuery Raw Event Streaming
- Offline Conversion Tracking (OCT)
E-Commerce Tech & Optimization
- Shopify Plus / Theme Architecture
- Looker Studio Executive Dashboards
- Klaviyo Retention & Flows
- Triple Whale / Northbeam Multi-Touch
- Landing Page & Funnel CRO
Certifications & Credentials
Meta Certified Media Buying Professional
Meta Blueprint • Verified 2024
Google Ads Search & Measurement Certification
Google Skillshop • Verified 2024
Google Analytics 4 Individual Qualification
Google • Verified 2024
Server-Side Tagging & Attribution Specialist
Analytics Mania • Verified 2024