Sergey Boyko's Work | ContraWork by Sergey Boyko
Sergey  Boyko

Sergey Boyko

CRM Automation & Lead Tracking Specialist

Cover image for I developed an Instagram Direct
I developed an Instagram Direct tracking integration using Cloudflare Workers, D1, and Meta Business Messaging Conversions API. The system authenticates incoming Instagram webhooks, records first observed contacts, prevents duplicate counting, and manages event delivery to Meta with retry and recovery mechanisms. The beta implementation was validated using real Instagram Direct messages, production database records, and controlled failure-recovery tests. The solution focuses on reliable contact-event tracking. Campaign-level attribution, CRM bookings, and revenue tracking are outside the current scope.
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Cover image for I designed and implemented a
I designed and implemented a call-first lead management system for a U.S. law firm. Connected Google and Microsoft Ads, Twilio IVR, Zapier automation, Google Sheets, and MyCase CRM to improve call handling and intake visibility. Built event-driven workflows to capture incoming inquiries, record answered and missed calls, preserve lead-source information, and synchronize intake status updates. The solution supports ongoing monitoring of calls, lead handling, and follow-up activity. Client identity and confidential operational information are intentionally excluded from this case study.
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Cover image for I built an end-to-end marketing
I built an end-to-end marketing measurement system for an online fitness education business. Connected the website, GetCourse checkout, and BePaid payment confirmations with Google Analytics 4, Google Tag Manager, Yandex Metrica, and Meta Conversions API. Implemented server-side purchase tracking through Make, with duplicate protection and session identifiers linking purchases to website activity. Validated the complete flow using real paid orders and removed outdated conversion events. Also restructured four Google Search campaigns, prepared for launch pending client approval.
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Cover image for I designed and built CyberSOC,
I designed and built CyberSOC, a cybersecurity SaaS platform for automated security scanning and vulnerability management. The platform helps businesses discover exposed assets, identify security vulnerabilities, assess risks, and generate actionable reports. Built with Next.js, TypeScript, FastAPI, PostgreSQL, Redis, and integrated security scanning tools. Deployed to production with user management, reporting, and subscription infrastructure.
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