Available for new projects

Performance
marketing,
measurably better.

I'm Julian Diep, a Google Ads & Local Service Ads expert helping local service and e-commerce businesses generate qualified leads at lower acquisition costs.

View case studies Email me
julianantoniodiep08@gmail.com linkedin.com/in/juliandiep Santo Domingo, DR
Open to work
Julian Diep
Google Certified Ads · Analytics · LSA
0+
Years in performance marketing
0+
Campaigns launched & optimized
~0%
Average CPL reduction
0x
Average ROAS achieved
About

A quick background.

I'm a performance marketing specialist with deep expertise in Google Ads and Local Service Ads. With a background spanning agency, SaaS and freelance work, I bring a data-driven, attribution-focused approach to every campaign, always optimizing for real business outcomes, not vanity metrics.

Location
Santo Domingo, Dominican Republic
Specialization
Google Ads · LSA · SEO/SEM
Strengths
Attribution, data analysis & campaign scaling
Clients served
Local services & e-commerce businesses
Experience
Google Compliance Specialist
StubGroup
1.5 Years
SEO & SEM Expert
Thryv
2.5 Years
Freelancer
Independent Clients
3+ Years
Skills
Google Ads Local Service Ads Google Shopping Conversion Tracking Bid Strategy Keyword Research SEO Technical SEO Schema Markup Google Analytics Attribution Ad Copywriting ROAS Optimization CPL Reduction
Credentials

Active certifications.

Verified credentials from Google and HubSpot Academy.

Google Ads Search Certification
Google Ads Search
Google · 2026 / 2027
Active
Google Ads Measurement Certification
Google Ads Measurement
Google · 2026 / 2027
Active
Google Analytics Certification
Google Analytics
Google · 2026 / 2027
Active
Google Ads Display Certification
Google Ads Display
Google · 2026 / 2027
Active
HubSpot SEO Certification
SEO Certified
HubSpot Academy · 2026 / 2027
Active
Selected Work

Google Ads case studies.

Seven hands-on campaigns across local services and e-commerce. All real data, clients kept confidential per agency agreements.

Local Service PPC · 8 Weeks · Home Services

Project I: Plumber Lead Generation

Cut CPL by 42% while scaling lead volume to 244 calls over 8 weeks

−42%
CPL Reduction
$18
Final CPL (from $37)
244
Total Leads
9.7%
Conv. Rate
4.41%
Avg CTR
Setup
  • Search + Call-Only campaigns
  • High-intent local service keywords
  • Location radius targeting
  • Full conversion & call tracking
Optimization Actions
  • Monitored CTR, CPL & conv. rate weekly
  • Paused underperforming ads & keywords
  • Expanded negative keyword list (25+)
  • Refined match types and bidding
  • Improved call extensions and ad copy
Reduced CPL 42% over 8 weeks: $37 to $18
E-Commerce PPC · 8 Weeks · Online Retail

Project II: E-Commerce Sales Campaign

Grew weekly revenue from $1.6k to $5.1k with a 3.3x average ROAS

3.3x
Avg ROAS
$24,600
Total Revenue
314
Total Orders
$24
Avg CPA
+219%
Revenue Growth
Campaign Setup
  • Google Shopping + Search (Brand & Non-Brand)
  • Product feed optimization
  • Conversion value tracking
  • Dynamic remarketing setup
  • Geographic & device bid adjustments
Optimization Actions
  • Segmented products by performance
  • Optimized feed titles & descriptions
  • Excluded low-converting search terms
  • Adjusted bids by device & audience
  • Scaled budget on high-ROAS products
  • Improved remarketing coverage
Revenue $1.6k to $5.1k/week ROAS 2.4x to 4.1x Total Spend $7,520
Subscription Lead Gen · 10 Weeks · Financial Education

Project III: Subscription Lead Generation

+165% lead volume with full compliance restructure for a credit education platform

+165%
Lead Volume Growth
$8.75
Cost per Lead
710
Qualified Leads
34%
Trial-to-Paid Rate
$420
Avg Customer LTV
Strategy & Compliance
  • Removed all "credit repair" language
  • Repositioned as "financial education"
  • Rewrote ad copy for compliance
  • Intent-based search campaigns + remarketing
  • Server-side conversion tracking
Key Results
  • Funnel CVR: 9% to 21%
  • Disapproval rate reduced to near zero
  • 241 active subscribers
  • $7,200/mo avg revenue
  • 1.8-month payback period
Total Spend $9,800 to 1,120 leads CPL $8.75 | CQPL $13.80
Technical SEO · 6 Months · E-Commerce

Project IV: E-Commerce Technical SEO & Authority Growth

Domain Rating 30 to 75+, rich results enabled, consistent month-over-month organic growth

75+
Domain Rating (from ~30)
Rich
Results Enabled
+MoM
Organic Growth
Technical Actions
  • Canonical standardization across all URLs
  • Fixed index bloat from legacy URLs
  • Submitted updated sitemaps in GSC
  • Product, Review, Breadcrumb & FAQ schema
  • Organization & Website schema
Content & Authority
  • 1 intent-focused article per week
  • Mapped keywords by intent (info to transact)
  • Internal linking to category/product pages
  • AI visibility & GEO optimization
  • DR 30 to 75+ through authority building
DR 30 to 75+ in 6 months Star ratings, FAQs, breadcrumbs in SERPs
Local Service PPC · 10 Weeks · Roofing

Project V: Residential Roofing Lead Generation

CPL down 45%, call volume up 6x over 10 weeks at $9,800 avg job value

−45%
CPL Reduction
$52
Final CPL (from $95)
6x
Call Volume Growth
14%
Conv. Rate
$29,400
Est. Revenue
Strategy
  • Search + Call-Only campaigns, storm-damage KWs
  • Location radius 25mi from base city
  • Ad scheduling: peak storm season hours
  • ECPC to tCPA at Week 4
Optimizations
  • Weekly SQR cleanup, 40+ negatives added
  • Paused low-CTR ads, tested 3 RSA variants
  • Refined match types (broad, phrase, exact)
  • Updated landing page CTA at Week 5
  • Geo performance review every 2 weeks
Total $18,400 spend · 50 calls · 14% CVR 3 confirmed replacements in final 2 weeks
Local Service PPC · 10 Weeks · Restoration

Project VI: Water & Fire Damage Restoration

Emergency calls up 5.8x, ROAS ~4.6x. Mobile-first bidding drove 82% of conversions

−25%
CPL Reduction
$131
Final CPL (from $175)
4.6x
Est. ROAS
125
Total Calls
$73,600
Est. Revenue
Strategy
  • 24/7 emergency Call-Only campaigns
  • Keywords: burst pipe, flood damage, fire/smoke
  • Mobile bid +40%, evenings +25%
  • ECPC to tCPA at Week 3
Results
  • 82% of conversions from mobile
  • Winning RSA headline: +38% CTR lift
  • 50+ negatives: DIY, insurance-only, mold test
  • 9 confirmed restoration jobs in final 3 weeks
$16,000 spend to $73,600 est. revenue ROAS ~4.6x
B2B Local Service PPC · 12 Weeks · Commercial HVAC

Project VII: Commercial HVAC Contractor

Lead volume up 6.7x, CPL cut 44%. Separated B2B from residential bleed entirely

−44%
CPL Reduction
$88
Final CPL (from $158)
6.7x
Lead Volume Growth
148
Total Leads
$126,000
Est. Revenue
Strategy
  • Separate campaigns: emergency repair vs. maintenance
  • B2B hours only: M to F, 7am to 6pm
  • Desktop bid +30% (B2B research behavior)
  • Manual CPC to tCPA at Week 5
  • Qualifying headlines: 'For 10+ Unit Buildings'
Results
  • Residential bleed eliminated by Week 3
  • Desktop drove 74% of total conversions
  • Service-specific landing page: 2.4x CVR
  • Quality Score avg 4 to avg 7
  • 18 confirmed jobs in final 4 weeks
$38,400 spend to ~$126,000 est. revenue ROAS ~3.3x
Let's work together

Ready to lower your CPL and scale qualified leads?

Available for Google Ads management, LSA setup, and SEO engagements. Reach out to discuss your goals.

julianantoniodiep08@gmail.com LinkedIn