Google Tag Manager consultant with 8+ years of GTM work: clean container architecture, a documented dataLayer, server-side tagging, conversion tags for every ad platform, and Consent Mode v2 wired into every tag so nothing fires without permission.
Consulting Capabilities
I provide deep knowledge and experience in the following areas, with plenty of experience to back it up.
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Google Tag Manager (GTM) Clean, organized containers with clear naming and structure that use simple, standard approaches.
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Container Architecture Workspaces, folders, environments and a consistent Provider-Action naming pattern so any team member can find and change a tag safely.
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dataLayer Design A documented dataLayer specification your developers push to, so tags read stable values instead of scraping the page.
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Server-Side Tagging Server-side GTM containers on Google Cloud or Stape, with first-party endpoints that recover events browsers block.
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Meta CAPI Reliable Facebook tracking with proper deduplication, matching and excellent optimization scores.
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Ad Platform Tags Google Ads, Meta, LinkedIn, Microsoft Ads, TikTok and other pixels with enhanced conversions and shared event IDs.
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Conversion Tracking Consistent conversion events across all major ad and analytics platforms with reliable attribution.
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Consent Mode V2 Full wiring through GTM: consent defaults, CMP-driven state updates, and tag gating across all five consent types (analytics_storage, ad_storage, ad_user_data, ad_personalization, security_storage).
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GA4 Tags GA4 configuration and event tags deployed through GTM to match your measurement plan.
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Container Audits Duplicate triggers, dead tags, hardcoded scripts and consent gaps found and fixed using Google's documented best practices.
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Governance & Change Review Permissions, publishing workflow and version notes, with new tags reviewed and consent-gated before they ship.
Clean, Simple & Reliable Tag Management
For 8+ years I've helped businesses in the finance, insurance, healthcare, entertainment, and software industries run advertising and analytics tags through GTM in clean and simple ways: organized containers, consistent naming, and tags that fire exactly when they should.
Success Stories & Case Studies
Coastal1 Credit Union GA4 & GTM Implementation
Event tracking and multi-touch attribution setup for Coastal1 Credit Union, enhancing ad performance and reporting consistency across platforms.
NetBrain Event Tracking & Conversion Optimization
Implemented accurate conversion tracking for NetBrain, improving ad performance and reducing advertising spend by 40%.
Building Engines GTM & GA4 Cleanup
Redesigned Building Engines' analytics tracking to reduce redundancy and improve accuracy, resulting in a streamlined setup with only essential events and enhanced attribution through Google Analytics.
Puck News Event Tracking & Consent Management
Advanced event tracking and consent management for Puck News, optimized for subscription funnels on a high-traffic publication.
“Kevin's expertise in Google Tag Manager, Meta, Bing, HubSpot & Segment provided exactly what we needed to create a full end-to-end attribution tracking system. He was even able to implement valuable offline conversion events occurring in the insurance underwriting process, providing us with a significant edge over the competition by optimizing our advertising spend at the right people.”CMO, SBLI
Server-Side Tagging & Conversions APIs
Ad blockers, iOS privacy restrictions, and browser tracking prevention are killing your conversion data. Server-side tagging captures what the browser misses, recovering 15-35% of lost conversions and giving ad platforms the signal quality they need to optimize campaigns.
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Server-side GTM on Google Cloud or Stape
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Facebook Conversions API with deduplication
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TikTok Events API and Google Ads enhanced conversions
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First-party endpoints and cookie strategies
Consent Mode Wired Into Every Tag
A cookie banner only matters if the tags behind it obey it. I wire Consent Mode v2 defaults and updates through GTM, set consent requirements on every tag, and verify at the network level what fires under each consent state. For the full legal and CMP lifecycle, see my privacy and consent consulting.
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Google Consent Mode V2 with region-specific defaults
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CMP integration with Cookiebot/Usercentrics or open-source banners
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Consent requirements set on every GTM tag
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Network-level verification of what fires after "Reject"
Clean Containers & Ongoing Governance
Containers decay: every campaign adds a tag, and nobody removes the old ones. I rebuild inherited containers into a documented structure, then keep them clean with a publishing workflow and change review so new tags are named, tested and consent-gated before they ship.
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Container audits and tag consolidation
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Provider-Action naming and organized folders
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Environments, permissions and version notes
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Change review for every new marketing tag
Common Concerns About Working
With a GTM Consultant
Answers to common concerns from CTOs and marketing leaders
evaluating an independent GTM consultant over an agency.
| Concern | Solution |
|---|---|
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Messy GTM Containers Years of accumulated tags, paused experiments, and inconsistent naming make your GTM container impossible to maintain. |
I audit and rebuild containers using the Provider-Action naming pattern, organized folders, and documented consent classifications for every tag. The result is a self-documenting container any team member can understand on day one. |
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Lost Conversion Data Ad blockers and browser privacy restrictions are causing 30-40% of conversion events to go unreported. |
Server-side tagging bypasses browser-based limitations. I implement measurement APIs from Meta, Google, TikTok, and other platforms from a server-side container or your own server, recovering conversions that browser pixels miss and improving ad platform optimization. |
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"We Already Have a Cookie Banner" Most CMP installs display a banner but never actually gate tags, and nobody has verified what fires after "Reject." |
I verify down to the network layer: which tags fire in GTM, whether GA4 loads and transmits hits, and what cookies are written under every consent state. You get the passing test matrix in writing. |
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Conversions Don't Match Across Ad Platforms Google Ads, Meta and LinkedIn each report a different number of conversions for the same campaign. |
A single dataLayer event feeds every platform's tag with a shared event ID, so browser and server events deduplicate correctly and each platform counts the same conversion once. |
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Dependency on a Single Consultant Relying on one person for critical tracking infrastructure feels risky. |
Everything I build is documented, version-controlled, and designed for maintainability. GTM containers follow standard patterns. Server-side code lives in your repositories with clear documentation. Any competent developer can pick up where I left off. |
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Strategy vs. Execution Gap Many tag management consultants deliver an audit report and leave implementation to your team. |
I do both. Architecture, strategy, and hands-on implementation from the same person. The dataLayer spec, the GTM configuration, and the server-side endpoint all come from me. |
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Keeping Up with Platform Changes Google, Meta, and other platforms constantly change their tag templates, consent requirements and APIs. |
Ongoing retainer engagements include monitoring platform changes, updating consent configurations as requirements change, and integrating new ad platform tags and APIs as they become available. |
Common Tasks & Requests
A sample of the Google Tag Manager requests I handle every month:
- GTM container overhauls and tag consolidation
- dataLayer specifications for developers
- Server-side tagging setup
- Conversion tags for forms, calls, and purchases
- Google Ads and Meta pixel implementation
- TikTok and OpenAI/ChatGPT ad pixels
- Enhanced conversions and offline imports
- GA4 measurement and reporting
- Debugging tags that fire twice or not at all
- Consent Mode v2 wiring
Common GTM Consulting Questions
Answers to the most common questions about GTM consulting,
server-side tagging, and conversion tracking.
- What does a GTM consultant do?
A GTM consultant designs, implements, and maintains the tags that send data from your website to analytics and advertising platforms. This includes Google Tag Manager container architecture, the dataLayer, conversion tags across ad platforms, Consent Mode wiring, and server-side tagging. I handle both the strategy and the code-level implementation.
- Why hire an independent GTM consultant instead of an agency?
With an independent consultant you get direct access to a senior expert with no account manager layer, no handoff to junior staff, and no agency markup. You also get someone who can write code, not just configure tags. For most businesses, this means faster turnaround, deeper technical work, and lower cost than a comparable agency engagement.
- What is server-side tagging and why does it matter?
Server-side tagging sends conversion events from a server-side GTM container or your own server to ad platforms and analytics tools, bypassing browser-based limitations like ad blockers and iOS tracking prevention. It recovers 15-35% of conversion data that browser pixels miss, giving ad platform algorithms better signal quality for campaign optimization.
- What is Google Consent Mode V2?
Consent Mode V2 communicates user consent preferences to Google tags, controlling how they behave when consent is granted or denied. It includes four parameters: ad_storage, analytics_storage, ad_user_data, and ad_personalization. Proper implementation allows Google to model conversions even when users deny consent, recovering 15-25% of conversion data that would otherwise be lost.
- What is the Facebook Conversions API?
The Facebook Conversions API sends event data directly from your server to Meta, bypassing browser limitations. Combined with browser pixel tracking and proper event deduplication, it captures conversions from users who block tracking in the browser and significantly improves Meta's ability to optimize your ad campaigns.
- What is a dataLayer and do I need one?
The dataLayer is a JavaScript object your site pushes structured events and values into, such as a form submission or a purchase with its revenue. GTM tags read from it instead of scraping the page, so tracking keeps working when the design changes. Any site with conversions worth measuring benefits from a documented dataLayer.
- How long does a typical GTM implementation take?
A standard GTM container build with conversion tags and Consent Mode takes 2-4 weeks. Adding server-side tagging and conversions APIs extends the timeline to 4-8 weeks depending on the number of ad platforms and the complexity of your conversion funnel.
- Does my business need server-side tagging?
If you run paid advertising and your business depends on accurate conversion data for campaign optimization, server-side tagging is increasingly essential. Ad blockers affect 30-40% of users in some demographics, and iOS privacy restrictions continue to expand. Server-side tagging ensures your ad platforms receive the data they need regardless of browser limitations.
- What does an ongoing GTM retainer include?
Retainer engagements typically include reviewing and publishing container changes, adding tags for new campaigns and ad platforms, updating consent configurations, maintaining server-side integrations, and troubleshooting tags as needs arise.
- How much does GTM consulting cost?
Initial implementations typically range from $5,000 to $25,000 depending on scope, number of ad platforms, and whether server-side tagging is included. Ongoing retainers start at $3,000 per month for maintenance and optimization, scaling up for larger organizations with more complex tracking needs.
Benefits of working together
Independent Consultant, Not an Agency
You work directly with me. No account managers, no project managers, no junior staff. When you need something, I'm available by text, email, or phone. I work with your internal tools like Slack, Jira, or Asana to become part of your team.
Code-Level Implementation
Most GTM consultants configure tags. I write the dataLayer pushes, build the server-side endpoints, implement conversions API integrations, and deploy directly to your codebase through pull requests. Architecture and implementation from the same person.
Consent Built Into the Container
Consent Mode v2 isn't bolted onto your container afterwards; it's part of the initial architecture. Every tag I deploy respects consent state from day one, so a marketing pixel never becomes a legal problem.
Clean, Documented Containers
Inherited GTM containers full of duplicate triggers and dead tags slow everyone down and corrupt your data. I leave behind organized workspaces with clear naming conventions and documentation, so your team can make changes confidently without breaking conversion tracking.
Let's Chat
If you're looking for expert consulting from a seasoned specialist schedule a consultation on Google Meet, or contact me by email.