Saiful I.

Conversion tracking & marketing-data engineer. I build the server-side tracking, offline conversion pipelines, and ad-platform automation that keep ad spend efficient at scale. 15 years of backend engineering behind every system. Over the last 4 years, I engineered and operated the entire ad-tech and data infrastructure for a high-spend advertiser: custom Google Ads API integrations, offline conversion pipelines feeding CRM and post-sale data back to Smart Bidding, server-side GTM, Meta CAPI, audience syncing, and performance feedback loops. Not campaign management - engineering. That's what separates me from a typical tracking specialist or ads optimizer. I don't just configure tags in a UI. I build the systems that manage, optimize, and measure ad performance programmatically - with proper architecture, error handling, monitoring, and scale. Whether you need a full pipeline built or a single conversion-tracking issue diagnosed and fixed right, I can help. What I design and build for clients: → Server-Side Tracking & Data Layer Infrastructure: Custom sGTM setups, server-side tracking, and data-layer engineering to minimize tracking drop-offs and future-proof against cookie deprecation. → Offline Conversion Tracking (OCT) Pipelines: Piping post-sale CRM data (HubSpot, Salesforce, custom DBs) back into Google Ads and Meta to feed clean data to Smart Bidding and Advantage+. → Conversions API (CAPI) Implementation: Server-side event pipelines for Meta, TikTok, and LinkedIn - with matching quality optimization, deduplication, and integration with sGTM and CRM data. → Google Ads API Automation: Automated campaign generation, asset management, custom bid rule engines, dynamic budget pacing, real-time performance alerts, and continuous campaign optimization. → AI Workflow & Operations Automation: Automated workflows using n8n, Make, and LLM APIs (OpenAI, Claude, Gemini) to sync ad platforms with internal systems, Slack, WhatsApp, and spreadsheets. → Custom Ad-Tech SaaS Development: Full-stack development using Laravel, Next.js, React, and PostgreSQL when a bespoke platform or analytics dashboard is required. Proven Record: ✅ One client retained continuously for 4+ years ($400K+ single engagement) ✅ 24,500+ hours on Upwork, 100% Job Success Score, Top Rated Plus ✅ Recently launched AdsOptimizer Lab - my own Google Ads optimization platform