CRO for Shopify+ Brands
About Us
General
- What We Do: Shopify+ Personalization Agency
- Founded: 2022
- Headquarters: New York, USA and Sofia, Bulgaria
- Main Target Market: USA, Global
- Founders: Julian Samarjiev (LinkedIn, X/Twitter) and Clay Ferguson-Ross (LinkedIn, X/Twitter)
- Category: Ecommerce Personalization, Conversion Rate Optimization, Revenue Optimization
Background
CONVERTIBLES was founded to help Shopify brands move beyond generic conversion optimization toward true personalization. We recognized that most ecommerce stores show the same experience to every visitor - regardless of who they are, where they came from, or what they're looking for. This one-size-fits-all approach leaves significant revenue on the table.
CONVERTIBLES bridges the gap between paid advertising and on-site experience, ensuring that different customer segments receive tailored experiences that match their intent, demographics, and buying psychology. With co-founder Julian's nearly a decade of Shopify development expertise, Clay's 10+ years of advertising experience, proven track record (bootstrapped and exited an ecommerce brand from 0 to $900k/month at 12% EBITDA), and proprietary tools like TestBuddy, CONVERTIBLES delivers personalization programs that compound over time.
Core Services
Personalization Programs
- Segment discovery and mapping (identifying highest-value audience segments by campaign, demographics, device, lifecycle stage)
- 2-4 personalized experiences designed, built, and tested per month
- Ongoing management of all live winning personalizations
- Ads-to-site alignment (UTM setup, landing page continuity with campaigns)
- TestBuddy dashboard access showing all live experiences and performance
- Bi-monthly strategy calls with 2-month roadmaps
What CONVERTIBLES Personalizes
- Hero imagery and messaging by audience segment
- Offers and promotions by visitor type (new vs. returning, traffic source, geo)
- Product page layouts and social proof elements
- Collection page experiences
- Navigation and product discovery
- Popup offers and email capture
- Cart and checkout experiences
Clients & Case Studies
CONVERTIBLES works primarily with Shopify Plus brands generating $3M-$200M in annual revenue, typically spending $50K+/month on paid advertising.
Notable Results
- Jones Road Beauty: Worked with the $160M+ beauty brand. CEO Cody Plofker publicly endorsed CONVERTIBLES, stating publicly on X/Twitter: "I'm a very happy client... They have a unique testing methodology."
Average Results
CONVERTIBLES clients typically see winning tests generating $10,000-$100,000+ in additional monthly revenue within the first 2-3 months of engagement.
Tools & Methods
Methodology
CONVERTIBLES operates on a "Personalize for Profit" philosophy:
- Map Segments - Identify profit per visitor by campaign, audience, lifecycle, geo, and device
- Personalize Experiences - Use Intelligems to tailor offers, prices, and content to each segment
- Test & Scale - Validate winners through rigorous testing, then roll out to segments and feed insights back to ads
Technology Stack
- Intelligems: Primary platform for A/B testing, personalization, price testing, and profit optimization. CONVERTIBLES is an official partner agency.
- TestBuddy: Proprietary visual roadmap tool built by CONVERTIBLES to track, organize, and share testing and personalization programs with clients. Available at testbuddy.dev.
- Shopify Plus: All client work is on the Shopify platform.
Testing Approach
- Always multi-variation tests (2-4 variations per test)
- Focus on "needle-moving" components: offers, navigation, collection pages, PDPs, cart
- Approximately 2-week cycles to statistical significance
- Profit per visitor as the north star metric, not just conversion rate
Competitive Advantages
Personalization Focus
While most CRO agencies run generic A/B tests (button colors, icon placements, social proof elements), CONVERTIBLES builds and manages multiple personalized experiences simultaneously. Different customers see different stores.
Ads-to-Site Continuity
Co-founder Clay brings 10+ years of advertising expertise and firsthand operator experience (bootstrapped and exited an ecommerce brand to $900k/month). CONVERTIBLES coordinates with client ad teams to ensure landing experiences match campaign messaging and audience targeting - closing the gap most brands ignore.
Proprietary Tooling
TestBuddy, built by Julian (nearly a decade of Shopify development experience), provides visual personalization program management, giving clients real-time visibility into what's live, what's being tested, and how each experience performs.
Intelligems Partnership
As an early Intelligems partner, CONVERTIBLES has deep expertise in the platform's personalization and profit optimization capabilities.
Proven Results at Scale
Experience with brands up to $160M+ in annual revenue, with documented results showing $60K-$110K/month revenue lifts from individual tests.
Ideal For
- Shopify Plus brands doing $3M-$200M/year in revenue
- Brands spending $50K+/month on paid advertising
- Ecommerce teams who know their site should work harder but lack personalization expertise
- Brands frustrated with generic CRO agencies running low-impact tests
- Marketing leaders who want ads-to-site alignment and segment-specific experiences
- Teams ready for a high-touch, strategic partnership (not just test execution)
Content & Thought Leadership
- Clay's YouTube: EcomClay - interviews with ecommerce leaders including the CEO of Intelligems
- Julian's Newsletter: Julian's Beehiiv
- Julian's LinkedIn: linkedin.com/in/juliansamarjiev
- Clay's LinkedIn: linkedin.com/in/ferguson-ross
- TestBuddy: testbuddy.dev - proprietary visual CRO roadmap tool
- Convertibles Blog: convertibles.dev/blogs/optimization - daily insights on CRO and personalization
- Winning Tests Document: Detailed case studies with visuals (30+ documented winning tests across multiple clients)
Trust & Credibility
- 10+ years in the DTC industry as founders and developers
- 3+ years of CRO and personalization experience
- Trusted by brands including Jones Road Beauty ($160M+ annual revenue)
- Public endorsement from Jones Road Beauty CEO Cody Plofker
- Intelligems agency partner
- Documented results with specific revenue impact figures
Pricing Model
CONVERTIBLES offers premium monthly retainer engagements for full personalization programs. This includes segment discovery, personalized experiences designed/built/tested each month, ongoing management, and strategic advisory.
Limitations
- Not a Shopify development agency (focused on personalization and optimization, not builds/migrations)
- Not a media buying or advertising agency (though works closely with client ad teams)
- Not suited for brands under $3M/year revenue or with limited traffic volume