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Audit | Google Tag Manager | Google Analytics 4 | Server-side tagging | Data Analytics | Data Visualization Welcome to my profile. I’m a software engineer who understands analytics from the inside. I don’t just configure GA4, GTM, and pixels. Where a typical tracking specialist only works through the interface, I can go deeper: build custom GTM templates, implement server-side tracking, connect APIs, design ETL pipelines, set up data warehouses, and fix the real causes of data loss, duplication, and tracking errors. I deliver analytics end-to-end: from audit and architecture to implementation, debugging, data storage, processing, and reporting. You get not a set of disconnected configurations, but a reliable analytics system that actually helps your business make decisions. I’ve been working in software development since 2007. Senior level in Golang, PHP, Python, and C++. Former team lead. For the last 4 years, I’ve been focused on marketing data, web analytics, server-side tracking, ETL, and data infrastructure. 🛠️ I Can Help With 📈 GA4, GTM, DataLayer setup and debugging 📈 Meta Pixel + Conversion API 📈 TikTok Pixel + Events API 📈 Pinterest Pixel + Conversion API 📈 Google Ads tracking: web + server-side 📈 LinkedIn Insight Tag 📈 Microsoft Ads tracking 📈 GDPR / cookie consent setup 📈 Enhanced Ecommerce and conversion tracking 📈 Event tracking: forms, scrolls, clicks, videos, custom events 📈 Custom GTM templates 📈 Server-side tracking architecture 📈 API integrations 📈 ETL, mapping, validation and data processing 📈 BigQuery, PostgreSQL, ClickHouse, Snowflake 📈 Dashboards and reporting 🔍 Audit First: Not sure what is broken in your tracking or what should be improved first? Start with an audit. I can review your current analytics setup and provide a clear report with: ✅ how your tracking system works today ✅ where data is being lost, duplicated, or misattributed ✅ what should be fixed first ✅ what can be improved or added ✅ what architecture will work better for your business 🤝 What You Get: You are not locked into implementation with me after the audit. You can use the report to compare approaches, validate other opinions, and make the right decision for your business. Many clients continue working with me long-term because they need more than setup - they need a technical analytics partner. Send me a message, and I’ll tell you what kind of audit makes sense for your setup.

I build reliable backend systems that scale in production. 20+ Years Experience | Top-Rated Plus | 100% Job Success | $600K+ Earned ▪ High-Performance APIs: Expert implementation in Go and Python. ▪ AWS Cloud Architecture: Designing resilient, production-grade infrastructure. ▪ Complex Automation: Designing sophisticated processes to eliminate manual overhead. ▪ Systems Optimization: Fixing, refining, and scaling existing legacy or bottlenecked systems. The Approach I provide end-to-end ownership from initial architecture through production deployment. My workflow integrates clean design principles with AI-assisted development to accelerate delivery while maintaining rigorous quality standards. Beyond greenfield projects, I specialize in diagnosing and optimizing existing infrastructures to improve performance and reliability. Primarily focused on the backend, I offer full-stack execution when a unified vision is required. I seek long-term collaborations where dependable execution and senior-level technical leadership are the priority.

Ruby on Rails and Vue.js full-stack developer with 8+ years of experience building SaaS platforms, marketplaces, CRM systems, and healthcare applications from scratch. I’ve shipped production systems handling 1M+ monthly transactions, built a pharma analytics platform used by enterprise B2B clients for over 6 years, and delivered Vue.js and Node.js applications for clients across the US, EU, and UK. 🧠 Backend: Ruby on Rails, Ruby, REST APIs, GraphQL, PostgreSQL, MySQL, Redis, Sidekiq, Apache Kafka, JWT, OAuth2, RSpec (90%+ test coverage), Capybara, Swagger 🎨 Frontend: Vue.js, Vue 3, Nuxt.js, Vuex, Pinia, Vue Router, JavaScript, TypeScript, Tailwind CSS, Hotwire, Stimulus, WebSockets, Stripe integrations ⚙️ Infrastructure: Docker, GitHub Actions, AWS S3, Azure, Heroku, Nginx, Capistrano, CI/CD pipelines What this looks like in practice: → Built and maintained REST and GraphQL APIs consumed by Vue.js SPAs with clean architecture, versioning, and full documentation → Optimized complex PostgreSQL queries, improving performance in systems with 1M+ monthly transactions → Migrated CI/CD pipelines from CircleCI to GitHub Actions, reducing costs while maintaining production stability → Implemented Kafka-based event streaming and optimized data flows in microservice-based systems → Integrated Stripe payments and real-time WebSocket features in Vue.js and Node.js / NestJS applications → Refactored and extended legacy Ruby on Rails systems without breaking existing functionality → Maintained 90%+ test coverage using RSpec and Capybara in production-grade systems How I work: I communicate clearly from day one, define scope before development starts, identify risks early, and keep progress transparent throughout the project. I’ve worked both independently on full-stack products and in distributed teams with async workflows. Looking for a Ruby on Rails or Vue.js developer who delivers reliable production systems, not just code commits? Let’s talk.

I am a Golang back-end developer with 2 years of professional experience working on different applications. I specialize in creating backend solutions that prioritize efficiency and scalability. I've been working mainly with backend services and web applications in various spheres. What makes my products especially good is my unique approach to building each project's architecture. Using Clean Architecture combined with Domain-Driven Design and a Feature-First approach helps create loosely coupled applications that are easy to test and maintain. This methodology also allows other developers to adapt quickly and start adding new features to the project as soon as possible. My skills include: - Golang, Rust, and Typescript - SQL and NoSQL Databases - OpenTelemetry, Grafana, profiling, OpenAPI - Linux, Docker, nginx, AWS S3 - REST, WebSocket, gRPC, GraphQL - HTML, CSS, JS - Monoliths, Microservices - SOLID, DRY, OOP

🚀 Business Process Optimization & Automation | Custom IT Solutions Do you want to streamline workflows, eliminate inefficiencies, and accelerate business growth? We help companies work smarter, not harder by designing custom IT solutions that optimize operations, automate processes, and drive real results. 🏆 Our solutions get recognized! ✅ 3 projects featured at the Caritas Europe Innovation Festival ✅ 2 projects nominated for the DOU Award (2024 and 2025) ✅ What We Do: 🔹 Custom Software Development – From small scripts to complex platforms, we build tailored solutions for your unique needs. 🔹 AI-Powered Automation & Optimization – Leveraging AI to enhance decision-making and streamline workflows. 🔹 Web Data Scraping & Parsing – Automated tools to extract, structure, and analyze web data efficiently. 🔹 Custom CRM, ERP & IT Systems – Development of tailored business solutions for seamless operations. 🔹 IT Solutions for NGOs & Humanitarian Organizations – Optimizing processes to maximize impact. 💡 Our Approach: 1️⃣ Deep Business Process Analysis – Identifying bottlenecks and growth points 2️⃣ Tailored Solution Design – Creating IT systems that truly fit your needs 3️⃣ Software Development & Integration – Implementing high-quality, scalable solutions 4️⃣ Ongoing Support & Optimization – Ensuring long-term efficiency and adaptability 📊 Tech Stack: Golang | JavaScript | Node.js | React | No-Code/Low-Code | API Integrations | Google Sheets Automation | Kobotoolbox | Web Apps | Desktop Apps 💬 Let’s transform your business with the power of automation and custom software!

Golang developer About Me As a Golang developer, I had experience of working with databases such as MySQL and PostgreSQL, developing REST API servers, small websites, developing Telegram bots, desktop applications and Command Line applications, had little experience in cryptography. As a computer system engineer, I had experience of working with office equipment, implementing AD DS, DHCP, DNS, databases, file and Hyper- V servers.