Flagship Data Solutions
High-performance data infrastructure engineered for 8-figure brands. We build the systems that turn your data into profitable growth.
"TagSpecialist 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."
— VP of Marketing, $50M+ DTC Fashion BrandServer-Side & Attribution Engine
Stop revenue leaks. Get 100% accurate tracking for marketing spend, ensuring every dollar is attributed correctly with server-side accuracy.
Core Capabilities
- Full Server-Side GTM Infrastructure
- Facebook CAPI & Google Ads Enhanced Conversions
- Ad blocker bypass (20-40% more data)
- First-Party Identity Stitching
- Advanced Cross-Channel Attribution
- Consent Mode v2 Implementation
Strategic Deliverables
- • Fully deployed tracking infrastructure
- • Custom dataLayer & custom subdomain setup
- • SOP documentation & team training
- • 30-day post-launch support & QA
VALUE: 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.
Enterprise Data & AI Warehouse
Build a single source of truth for all marketing data, powering executive-level insights and automated GenAI reporting.
Core Capabilities
- GA4 → BigQuery Real-time Pipeline
- CRM & Shopify → BigQuery ETL
- Custom SQL Attribution & LTV Models
- GenAI Analytics Agent Integration
- Automated Anomaly Detection Alerts
- Executive Dashboards (Looker/PowerBI)
Strategic Deliverables
- • Production-ready BigQuery data warehouse
- • Custom SQL transformations & views
- • GenAI natural language query interface
- • Documentation & ongoing optimization plan
VALUE: One client went from 2.1x to 9.5x ROAS in 6 months—$200K+ additional monthly revenue from better attribution and optimization.
Trusted by brands & agencies who rely on accurate tracking
Direct Clients

Agency Partners
Specialized Capabilities
TRACKING
- GTM Container Ops
- GA4 Debugging
- Server-Side
- Signal Loss Fix
ENGINEERING
- BigQuery ETL
- Pipeline Updates
- SQL Tuning
- API Management
ANALYTICS
- Attribution
- LTV Modeling
- ML Insights
- Exec Dashboards
STRATEGY
- Bi-Weekly Syncs
- Tech Roadmapping
- Agency Support
- 15-Min Response
How We Work
Every engagement follows the same disciplined path — diagnose first, design a plan you approve, build it properly, then keep it accurate. No guesswork, no surprises.
Audit & Strategy
We diagnose your entire tracking stack, pinpoint what's broken, and size the revenue opportunity — before a single line gets built.
Measurement Architecture
We design a measurement plan and data architecture mapped directly to your business goals, KPIs, and reporting needs.
Your Approval
You review the blueprint and scope and sign off on a fixed plan. Nothing gets built until you approve it.
Implementation
We build it cleanly — GA4, server-side GTM, CAPI, BigQuery pipelines — fully documented, tested, and validated.
Maintenance
We host, monitor, and maintain your setup so it stays accurate as ad platforms and browsers keep changing.
Bolt On Anytime
Add-On Capabilities
Scoped into your implementation or added later as your stack grows.
Not Sure Where to Start?
We'll audit your current setup and recommend the best path forward—completely free.
Our 15-Minute Audit Covers:
- Current tracking gaps & data quality issues
- ROI opportunity sizing
- A recommended path for your business
Free. No obligation. No sales pitch.
Book Free 15-Min AuditWhere You Fit
Common Questions
Scale Your Data Operations
Choose a partnership level that matches your growth stage. No account managers. Just direct access to the specialists doing the work.
Essentials Retainer
ROI / Value
The cost of 1 junior analyst, but you get two senior specialists monitoring your data 24/7 + world-class infrastructure.
Best for: Businesses with stable tracking needs wanting ongoing peace of mind.
- Monthly performance monitoring
- Tag troubleshooting & fixes
- Basic reporting & insights
- Conversion tracking optimization
- Email support (48-hour response)
- Quarterly strategy call
Growth Retainer
ROI / Value
Less than one day of lost revenue from poor tracking decisions. Our proactive optimization typically pays for itself in week 1.
Best for: High-growth brands launching regular campaigns and optimizing for scale.
- Everything in Essentials, PLUS:
- Proactive optimization recommendations
- New tracking implementation (2-3/mo)
- Monthly data quality audits
- Priority support (24-hour response)
- Bi-weekly strategy calls (30 min)
Scale Retainer
ROI / Value
Your technical co-founder for data—without equity or benefits. Full senior team for the cost of 1.5 hires.
Best for: Enterprise organizations needing elite data engineering and strategic insight.
- Everything in Growth, PLUS:
- Advanced attribution modeling
- Predictive analytics & ML insights
- Custom BigQuery analysis
- Dedicated Slack channel
- Weekly strategy calls (1 hour)
Ready to Transform
Your Marketing Data?
One client went from 2.1x to 9.5x ROAS in 6 months—$200K+ additional monthly revenue from accurate attribution and optimization.
Let's discuss what we can do for your business.
Don't Just Take My Word For It
Real reviews from paid client engagements — every project completed, logged, and rated on Upwork.
"Aman is hands down the best Google and Meta tracking specialist I've ever worked with. His deep expertise, problem-solving skills, and attention to detail make him an absolute game-changer."
Google & Meta Tracking
Verified Upwork Review
"Aman did a fantastic job setting up GA4 and Tag Manager for 3 ecommerce websites I have. I will definitely work with him again and be referring others to him."
GA4 & GTM Implementation
Verified Upwork Review
"Incredibly skilled with Facebook attribution, and was thorough in troubleshooting and solving my issue, even on my checkout software that he wasn't already familiar with."
Facebook Attribution
Verified Upwork Review
"Excellent troubleshooting and testing. Professional and knowledgeable with Google Analytics, Tag Manager, Facebook Ads Manager. Would highly recommend and will gladly rehire in future."
Meta CAPI Setup
Verified Upwork Review
"Very good developer. Always did a good job. We've worked together for over 3 years. Aman has been instrumental in our tracking success."
GTM Implementation
Verified Upwork Review
"Aman is great and knowledgeable. He's a great communicator too. His audit helped us identify critical tracking gaps and improve our campaign performance significantly."
SA360 Account Audit
Verified Upwork Review
Upwork Client Reviews
Longest Client Engagement
Response Time
Senior-Level Delivery
Every review shown is from a verified, paid engagement on Upwork.