Two Paths to Data Mastery
Whether you need 100% accurate tracking today or a custom data infrastructure for tomorrow, we provide the senior engineering expertise you need.
Marketing Analytics & Tracking
Fix broken attribution, implement server-side tracking (GTM), and capture every conversion signal.Managed infrastructure included.
- Server-Side GTM & Meta CAPI
- Managed Hosting (Starts at $80/mo)
- Attribution Audit & Fixes
Data Engineering & AI
Build your own data warehouse. Unlimited rows, real-time pipelines, and GenAI insights.Zero vendor lock-in.
- Shopify to BigQuery Pipelines
- Custom ETL/ELT (Python/SQL)
- AI Analytics Agents (LangChain)
Why Leading Brands Struggle
Data engineering is difficult. Most marketing teams are flying blind with broken attribution, inconsistent tracking, and manual reporting.
Broken or incomplete tracking
GA4 discrepancies
Unreliable ad platform data
Google Ads native connector limitations
Supermetrics failing or inconsistent
No single source of truth
Slow, manual reporting in Excel/Sheets
Multi-platform chaos (Google, Meta, TikTok, Shopify)
Attribution confusion
Server-side tagging not implemented
What TagSpecialist Delivers
A complete DO-IT-FOR-YOU engineering setup. No more manual exports. No more broken pixels. Just pure, actionable data.
BigQuery Data Warehouse
Unified - Clean - Single Source of Truth
Specialists vs. Generalists
Why leading brands choose a boutique consultancy over big agencies.
Founded by 2 Lead Data Engineers
15+ Years Combined Technical Experience
Direct Access to Experts (No Account Managers)
Proven Results: 451% Average ROAS
Enterprise-Grade Engineering (GCP/BigQuery)
No Vendor Lock-in (Own Your Data)
Custom SA360, DV360, and Floodlight integrations
10x more customizable than Supermetrics/Funnel
Costs 80% less long term than enterprise SaaS
"We don't just use the tools. We engineer them."
Investment Structure
We don't sell hours. We sell business transformation and infrastructure that delivers 451% average ROAS.
Tracking Audit & Strategy
One-time audit. 1-2 week timeline.
Value Framing
Stop guessing what's wrong with your tracking. Get a complete diagnosis with prioritized fixes and ROI projections before investing in implementation.
- Full tracking stack audit
- Data quality assessment
- Gap analysis report
- Prioritized fix recommendations
- ROI opportunity sizing
- 30-min strategy call
Analytics Foundation
One-time setup. 2-3 week timeline.
Value Framing
The cost of 1.5 months of wasted ad spend from inaccurate tracking. One client recovered $8K/month in misattributed conversions in week 1.
- GA4 implementation & configuration
- Google Tag Manager setup (web)
- 10-15 essential event tracking setup
- Conversion tracking for key actions
- Custom dashboard in Looker Studio
- UTM parameter framework
- Documentation & training (2 hours)
Server-Side Infrastructure
One-time setup. 3-4 week timeline.
Value Framing
Captures 30-40% more conversion data you're currently losing. If you spend $50K/month on ads, that's $15K-20K in previously invisible conversions.
- Everything in Analytics Foundation
- Server-side GTM setup
- Meta (Facebook) CAPI implementation
- Google Ads Enhanced Conversions
- TikTok Pixel server-side tracking
- Ad blocker bypass (20-40% more data)
- Advanced deduplication logic
Complete Data Infrastructure
One-time setup. 5-6 week timeline.
Value Framing
One client went from 2.1x to 9.5x ROAS in 6 months—$200K+ additional monthly revenue from better attribution and optimization.
- Everything in Server-Side Infrastructure
- BigQuery data warehouse setup
- Automated data pipelines (all sources)
- Cross-platform attribution modeling
- Lifetime value (LTV) tracking
- AI-powered insights setup
- 30-day post-launch support
Not Sure Which Package?
We'll audit your current setup and recommend the best solution—completely free.
Our 15-Minute Audit Covers:
- Current tracking gaps & data quality issues
- ROI opportunity sizing
- Custom package recommendation
Free. No obligation. No sales pitch.
Book Free 15-Min AuditSelection Guide
Pricing Strategy FAQ
Strategic Add-Ons
Real Clients. Real Revenue Growth.
We build data infrastructure that directly impacts your bottom line—not just dashboards that look pretty. Every system we engineer is designed to increase attribution accuracy, reduce wasted ad spend, and scale your data operations.
451% ROAS Increase via Attribution Infrastructure
The Challenge
$50M DTC Fashion Brand was hemorrhaging $50K monthly due to broken attribution. Their marketing team was flying blind—Meta and Google Ads both claimed credit for the same conversions, making it impossible to optimize spend or scale profitably.
The Solution
- Implemented First-Party data stitching to map the complete customer journey
- Created cross-platform attribution models using BigQuery ML
- Built real-time dashboards showing true incremental lift by channel
- Deployed server-side conversion tracking to bypass iOS 14.5 limitations
"Tag Specialist transformed our data infrastructure. For the first time in two years, we finally know exactly where our next dollar should be spent. The ROI was immediate and massive."
DATA WAREHOUSE AUTOMATION
Scaled Agency to 70+ Clients (Zero Data Team Overhead)
Problem:Growing agency was spending 2 days per client on monthly reporting. Hiring more analysts was eating all margins. Client churn was increasing due to slow insights.
Solution:Built automated BigQuery data lake pulling from Google Ads, Meta, GA4, Shopify, and CRM. Created templated Looker Studio dashboards with automated alerts.
GENAI ANALYTICS AGENT
AI-Driven Insights for Global Resort Brand
Problem:Executive team couldn't get answers from data without waiting 48 hours for a data analyst. Strategic decisions were being delayed by data access bottlenecks.
Solution:Built custom AI analytics agent powered by BigQuery + OpenAI. Natural language interface allows executives to ask questions and get instant visualizations.
SERVER-SIDE TAGGING FIX
First-Party Data Strategy for B2B SaaS
Problem:iOS 14.5 and ad-blockers caused 40% signal loss on LinkedIn and Meta campaigns. Cost per qualified lead jumped 60% in 6 months. Attribution was broken.
Solution:Migrated to server-side GTM with custom subdomain setup. Implemented enhanced conversions and CAPI. Built first-party identity graph in BigQuery.
Ready to Transform Your Marketing Data?
Every case study started with a 15-minute discovery call. We'll audit your current setup, identify quick wins, and show you exactly how we'd approach your data challenges.
*Detailed performance metrics and client references available under NDA for qualified leads.
Tracking & Tagging Foundation
Before you analyze, you must track accurately. We engineer the entire infrastructure required to capture every signal with 100% precision.
Google Tag Manager
Web + Server-side container architecture
GA4 Configuration
Advanced events & custom definitions
Consent Mode v2
Compliant & future-proof setup
Server-Side Tagging
Shopify + CAPI tracking for accuracy
Social Tracking
TikTok, Snap, Pinterest, LinkedIn
Data Strategy
First-party data & Attribution cleanup
Frequently Asked Questions
Everything you need to know about our engineering process and high-performance data systems.
Turn Your Data Into
A Competitive Advantage
One client went from 2.1x to 9.5x ROAS in 6 months by fixing their attribution and engineering a BigQuery warehouse. Let's discuss what we can do for you.