Experience
5+ Years
Conversion tracking, analytics, and marketing infrastructure.
Available for mid-level SaaS opportunities
Asad Chowdhury
Full Stack Marketing Engineer
I Build
Growth
Systems
I build full-stack systems that help SaaS and eCommerce teams track user behavior, fix attribution gaps, automate marketing data flows, and turn analytics into revenue decisions.
Specialized in full-stack development, tracking infrastructure, attribution systems, and SaaS growth analytics.
Freelance Proof
100% Job Success
Strong delivery record on Upwork.
Business Types
SaaS + eCommerce
Experience across SaaS, Shopify, agencies, and lead generation.
Core Tracking Stack
DataLayer injection | GTM | CAPI | Marketing/Analytics End-points
Client-side, server-side, and CRM-connected tracking systems.
Core Development Stack
Next.js | React | JS | Node.js | Express | MongoDB
Client-side, server-side, and CRM-connected tracking systems.
Client Proof
Trusted across service, legal, tax, eCommerce, and growth teams.
Selected client brands and businesses connected through tracking, attribution, reporting, and marketing data work.
Client Testimonial:Ricky HayesCEO, Debutify
Client Testimonial:Cory RolandCEO, Optimal Media
Client Testimonial:Alexandra di GuglielmoAgency Owner, Bytes to insights
Positioning
Not just a developer. Not just an analytics specialist.
Most developers can build interfaces. Most marketers can read reports. My advantage is connecting the full system: product behavior, tracking architecture, attribution, CRM data, analytics, and business outcomes.
Full-Stack Development
Modern web interfaces, backend workflows, API integrations, dashboards, and automation systems using Next.js, React, Node.js, databases, and webhooks.
Tracking & Attribution Infrastructure
Event tracking systems across GA4, GTM, server-side tracking, Meta CAPI, Google Ads, UTMs, click IDs, consent mode, CRM stages, and checkout flows.
Growth & Revenue Context
Technical implementation connected to business questions: lead quality, funnel breaks, event priority, and revenue feedback into marketing systems.
Problems
Problems I Solve
I help SaaS and eCommerce teams build reliable systems for measurement, attribution, reporting, and growth execution.
Broken Tracking & Attribution
Diagnose and fix missing conversions, unreliable analytics events, cross-domain issues, checkout tracking gaps, consent-related data loss, and ad platform attribution problems.
GA4 debuggingGTM auditsServer-side trackingMeta CAPIGoogle Ads conversionsCross-domain tracking
Marketing Data Infrastructure
Build data flows that connect websites, product events, CRMs, ad platforms, spreadsheets, dashboards, and reporting systems.
CRM webhooksOffline conversionsLead lifecycle trackingGoogle Sheets pipelinesLooker Studio dashboardsBigQuery reporting
SaaS & eCommerce Analytics
Help teams understand acquisition, activation, checkout behavior, lead quality, funnel drop-offs, revenue contribution, and campaign performance.
Funnel analysisShopify analyticsLead quality reportingProduct analyticsRevenue attributionCampaign reporting
Full-Stack Implementation
Build landing pages, dashboards, internal tools, tracking utilities, data capture systems, webhook workflows, and SaaS-style prototypes.
Next.jsReactNode.jsMongoDBAPIsAutomation tools
Selected Work
Featured Work
Selected projects and systems that show how I combine engineering, analytics, attribution, and growth thinking.
Leads
1.8k
SQL
38%
Revenue
$42k
eCommerce Analytics Dashboard
Custom BI Dashboard for TennisZon
Problem: TennisZon's team could see store and campaign numbers, but only as disconnected reports spread across Shopify, ad platforms, and analytics tools.
Solution: Built a custom business intelligence dashboard that pulls ecommerce, tracking, and campaign data into one place, so performance can be checked in a single view instead of stitched together by hand.
Outcome: Delivered as a completed Upwork engagement for TennisZon, giving the team a single source of truth for store performance.
GA4Looker StudioBigQueryShopifyGTM
View Case StudyTracking HealthLive
GA4GTMCAPI
Conversion Tracking System
Comprehensive Analytics & Ad Tracking Setup
Problem: Redtail Industries needed accurate, unified conversion tracking across analytics and ad platforms to trust the numbers behind their ad spend decisions.
Solution: Implemented a full GA4, Google Tag Manager, Meta CAPI, and Google Ads tracking setup, closing gaps in event tracking and attribution across the funnel.
Outcome: Completed as an Upwork contract for Redtail Industries, giving the team reliable data for campaign decisions.
GA4GTMMeta CAPIGoogle AdsJavaScript
View Case Study1Website
2CRM
3Server GTM
4Ad Platforms
Server-Side Tracking Pipeline
Client-Server GTM for Shopify + WordPress
Problem: Browser-based tracking alone wasn't capturing reliable conversion data across Révolution Fermentation's Shopify store and WordPress site, especially with ad blockers and browser restrictions in play.
Solution: Built a server-side Google Tag Manager setup using Stape, sending clean, deduplicated events from both platforms to the ad and analytics tools that needed them.
Outcome: Delivered as a completed Upwork project for Révolution Fermentation, improving tracking reliability beyond what client-side tags alone could provide.
Server-side GTMStapeShopifyWordPressMeta CAPI
View Case StudyCheckout
Events
view_item
add_to_cart
purchase
eCommerce Tracking System
Shopify Funnel Tracking with GA4
Problem: A Shopify store needed accurate funnel tracking to see where shoppers were dropping off between browsing and checkout.
Solution: Configured GA4 ecommerce events and Google Tag Manager tracking across the full Shopify funnel, from product views through purchase.
Outcome: Completed as an Upwork engagement, giving the store owner funnel-level visibility instead of top-line numbers only.
ShopifyGA4GTMJavaScript
View Case StudyTracking HealthLive
GA4GTMCAPI
Conversion API Implementation
Meta CAPI Server-Side Setup
Problem: iOS tracking restrictions and browser-side pixel loss were causing Meta ad platforms to under-report real conversions.
Solution: Set up Meta Conversions API on both server and browser side using a Stape server container and Google Tag Manager, with deduplication between the two paths.
Outcome: Delivered as a completed Upwork project, restoring conversion signal that browser-only pixel tracking was missing.
Meta CAPIStapeGTMServer-side tracking
View Case StudyPositioning
Growth systems,
not just websites.
WorkSkillsContact
Next.js Portfolio
Personal Portfolio Website
Problem: Needed a portfolio that positions Asad as a Full Stack Marketing Engineer instead of a generic developer or tracking freelancer.
Solution: Built a modern portfolio with positioning, project storytelling, technical stack, professional proof, and SaaS-focused messaging.
Outcome: Designed to attract SaaS, analytics, growth, and marketing engineering opportunities.
Next.jsReactTailwind CSSVercel
View Case StudyStack
Skills & Technical Stack
A technical stack shaped by full-stack development, marketing engineering, analytics infrastructure, and automation.
Frontend Development
HTMLCSSJavaScriptTypeScriptReactNext.jsTailwind CSSResponsive UIComponent-based development
Backend & Full Stack
Node.jsExpress.jsREST APIsWebhooksMongoDBAuthentication flowsServer-side logicAutomation workflows
Marketing Engineering
Google Tag ManagerServer-side GTMGA4Meta PixelMeta Conversions APIGoogle AdsEnhanced ConversionsConsent ModeShopify trackingOffline conversions
Data & Analytics
BigQuerySQLLooker StudioFunnel analysisCRM data mappingAttribution analysisEvent schema designData cleaningReporting dashboards
Platforms & Tools
ShopifyWordPressHubSpotLead DocketZapierMakeStapeGoogle CloudGitHubVercelPostmanChrome DevTools
Experience
Experience SaaS teams can use on day one.
I have worked across tracking, attribution, automation, analytics QA, and reporting systems for companies that depend on clean growth data.
Employer Signal
Engineering judgment plus marketing data context.
Useful for SaaS teams that need product events, attribution, CRM stages, dashboards, and ad platform signals to work as one system.
Digital Recipe
Conversion Tracking Expert
Achievement
Built reliable campaign measurement systems across GA4, GTM, Meta CAPI, Google Ads, CRM events, and offline conversion workflows.
Worked as a Conversion Tracking Expert delivering advanced analytics, attribution, and server-side tracking solutions for marketing and lead-generation campaigns.
- Implemented GA4, Google Tag Manager, and server-side tracking solutions.
- Configured Meta Pixel, Meta Conversions API, Google Ads conversions, and enhanced conversions.
- Built and debugged cross-domain and iframe tracking implementations.
- Created custom dataLayer events and JavaScript-based tracking solutions.
- Integrated CRM and offline conversion workflows with advertising platforms.
- Supported analytics reporting and attribution troubleshooting for marketing teams.
Conversio
Conversion Tracking & Data Analysis Specialist
Achievement
Improved marketing data quality by pairing tracking implementation with reporting QA, funnel analysis, and dashboard-ready event structures.
Provided conversion tracking, analytics implementation, and reporting support for eCommerce and performance marketing clients.
- Configured and maintained GA4 and GTM tracking implementations.
- Built attribution and event tracking systems across marketing funnels.
- Created custom reports and dashboards using Looker Studio.
- Performed data validation, QA, and analytics debugging.
- Analyzed conversion and user behavior data to support optimization efforts.
- Collaborated with developers and marketers to improve measurement accuracy.
Debutify
Team Lead - Conversion Tracking
Achievement
Led Shopify-focused analytics and attribution work for a growth-driven eCommerce SaaS environment, connecting checkout behavior to ad platform optimization.
Led conversion tracking and analytics initiatives focused on Shopify eCommerce tracking, attribution, and marketing performance optimization.
- Managed Shopify-focused tracking implementations and troubleshooting.
- Configured GA4 ecommerce tracking and checkout event measurement.
- Implemented Meta CAPI and Google Ads tracking for performance campaigns.
- Worked with server-side tracking and consent mode implementations.
- Guided tracking strategy and technical implementation processes.
- Collaborated with internal and external stakeholders on analytics solutions.
Quick Evolve
Conversion Tracking Specialist
Achievement
Helped agency clients turn fragmented lead-generation tracking into cleaner conversion signals, reporting flows, and campaign measurement systems.
Delivered tracking and analytics solutions for agency clients focused on lead generation, attribution, and campaign measurement.
- Implemented conversion tracking across Google Ads, Meta Ads, and GA4.
- Configured GTM-based event tracking and custom triggers.
- Diagnosed attribution and reporting inconsistencies.
- Integrated offline conversion tracking workflows.
- Built reporting systems and analytics dashboards.
- Provided technical consultation for campaign measurement and optimization.
Bytes 2 Insights
Marketing & Automation Engineer
Achievement
Designed automation and analytics pipelines that connected CRM activity, ad platforms, reporting dashboards, and technical QA into scalable growth operations.
Responsible for designing marketing data collection systems, automation workflows, and reporting pipelines for major clients, ensuring accurate attribution, reliable analytics, and scalable data operations.
- Built automation workflows using Zapier, webhooks, and API integrations.
- Designed and maintained marketing data pipelines for analytics and reporting.
- Implemented GA4, GTM, server-side tracking, and conversion attribution systems.
- Monitored tracking health, event accuracy, and data consistency across platforms.
- Created Looker Studio dashboards for marketing performance and executive reporting.
- Integrated CRM, ad platforms, and analytics tools into centralized reporting systems.
Operating Model
How I Think About Growth Systems
Good tracking is not just about firing tags. It is about designing a reliable system that connects user behavior, marketing spend, CRM stages, and revenue outcomes.
01
Attribution breaks when systems are disconnected
A visitor may come from an ad, browse the site, submit a form, enter a CRM, and convert days later. If the tracking architecture does not preserve IDs, UTMs, user data, and lifecycle stages, the business loses visibility.
02
Event architecture should match business decisions
Not every event deserves the same priority. I focus on events that help teams understand acquisition, activation, qualification, conversion, revenue, and retention.
03
Growth teams need reliable data flows
Dashboards are only useful when the data pipeline is clean. I care about how data is captured, stored, enriched, sent, and reported across tools.
Target Roles
Roles I Am Targeting
I am best aligned with teams that need someone who can understand the product, implement tracking correctly, connect analytics systems, and build tools that support growth.
Full Stack Marketing EngineerMarketing EngineerAnalytics EngineerTracking EngineerGrowth EngineerTechnical Implementation SpecialistSolutions EngineerMarTech EngineerProduct Analytics Engineer
Why Hire Me
Hire me when you need engineering, analytics, and growth thinking in one person.
My strongest value is not just writing code. It is building systems that connect product behavior, marketing performance, analytics, and business outcomes.
I am a technical marketing and full-stack development professional with over five years of experience helping businesses measure, debug, and improve their customer acquisition systems.
My background started in conversion tracking, analytics implementation, and marketing data infrastructure. Over time, I expanded into full-stack development because I wanted to build the systems behind the tracking, not just configure tools after the product was already built.
Today, I understand how SaaS and eCommerce businesses acquire users, how attribution breaks, how tracking data flows from frontend events to ad platforms and CRMs, and how teams use that data to make revenue decisions.
Outside client work, I enjoy learning full-stack development, building SaaS ideas, exploring automation workflows, and turning technical problems into scalable systems.
Contact
Let's build growth infrastructure that actually works.
I am open to mid-level roles where I can combine full-stack development, tracking infrastructure, analytics, and growth systems for SaaS or eCommerce teams.