Hire the Best Data Warehousing Specialists
in Ukraine

👋 I am new to Upwork, but not new to the work. I have 8+ years of real production experience, and I take every project seriously. I build data systems, AI pipelines, and automation workflows that work reliably at scale.😎 I am a Senior Data Engineer and AI Integration Specialist with 8+ years of experience. I do not just move data from one place to another. I design systems that turn complex and messy data into clean, useful information and build automation that saves teams hours of manual work every week. 🧠 Tech stack: Python, SQL, PySpark, AWS, Snowflake, BigQuery, Databricks, PostgreSQL, Airflow, dbt, Docker, FastAPI, n8n, Claude API, OpenAI, LangChain, Playwright, Supabase, Airtable, Salesforce, GoHighLevel 💡 What I bring: • Pipelines that process 100M+ records every month • Up to 70–80% reduction in manual reporting • AI and LLM integrations that automate real business workflows • Web scraping systems that collect and enrich data at scale • Strong focus on data quality, testing, and stability • Solutions that are easy to support and scale ⚙️ What I do: • Build data pipelines from APIs, databases, and files • Design data models and warehouse architectures • Work with cloud platforms: AWS, BigQuery, Snowflake, Databricks • Set up orchestration with Airflow, Prefect, and dbt • Build AI agents and RAG systems using Claude and OpenAI APIs • Automate workflows with n8n, Make, and custom Python scripts • Build web scrapers with Playwright, Scrapy, and BeautifulSoup • Integrate CRMs: Salesforce, HubSpot, Airtable, GoHighLevel • Create dashboards in Power BI, Tableau, Looker, Metabase, and Retool Experience: ▶️ eCommerce: 100+ data sources, product datasets, marketplace integrations ▶️ FinTech: data pipelines, financial reporting, regulated environments ▶️ Healthcare: data cleaning and structuring for analysis and reporting ▶️ Real Estate and PropTech: pricing models, permit data pipelines ▶️ Government: automated document and data processing ▶️ Migrations: legacy SQL and Excel to modern cloud platforms 🚀 If you need reliable data infrastructure, AI automation, or clean analytics, I can help.

I help companies build accurate, high-performance analytics systems that unlock real insights — not just raw data. If you need GA4 tracking, clear reports, CRM attribution, or data pipelines, I’ll deliver a solution that works from day one. What I Do Best 🔥 Google Analytics 4 (incl. Enhanced Ecommerce) — clean, reliable setups that business teams can trust 🔥 Google Tag Manager — advanced tracking, custom events, data layers 🔥 Marketing Pixels — Meta Pixel, Google Ads, Bing/Microsoft Ads, LinkedIn, TikTok & more 🔥 Consent Mode V2 / Microsoft Consent Mode 🔥 BigQuery — data collection, optimization, cost-efficient architecture 🔥 ELT Pipelines — Airbyte, Skyvia, Funnel.io → client databases 🔥 Looker Studio Dashboards — fast, scalable reports without connector limits 🔥 Marketing Attribution (Salesforce, HubSpot, Pardot) — source tracking from website → CRM → dashboards Why Clients Choose Me ✓ Precise, reliable tracking ✓ Fast delivery & clear communication ✓ Business-oriented dashboards, not technical clutter If you know what you want — I’ll build it. If not — I’ll design the perfect analytics system for your business.

Top 1% Upwork EXPERT-VETTED Data & Solution Architect. For over 15 years, I've worked with data, focusing the last 7 years as a Data Architect on managing high-load and big-data projects. I oversee systems that serve hundreds of millions of users and manage petabytes of data, along with overseeing infrastructure budgets of over 1.5 million USD each year. In the past 8 years on Upwork, I have completed more than 100 projects with a 100% Job Success Score and a 94%+ client return rate. SERVICES ✅ Data Engineering ✅ AI/ML ✅ AI Adoption & GenAI ✅ Predictive analytics ✅ High-load Data Scraping ✅ Data Integration - seamless connection through APIs ✅ Data Management – ETL pipelines, Data Warehousing, Data Lakes, DataOps ✅ IT Infrastructure & Solution Architecture ✅ DevOps for Performance Optimization and Cost Reduction STACK & TECHNOLOGIES Core stack: Python Data Warehousing: Redshift | BigQuery | Snowflake | Teradata Data Lakes: Hadoop | Amazon S3 | Azure Data Lake Storage | Google Cloud Storage ETL Tools and Data Pipelines: Databricks Workflows | AWS Glue | Google Cloud Dataflow Big Data Processing: Spark | Hadoop | Google Dataflow | Dask | Amazon Kinesis | Kafka Databases: MySQL | PostgreSQL | Google BigQuery | MongoDB | DynamoDB | Redis Data Analysis and Machine Learning: Pandas | NumPy | Dask | SciPy | OpenCV | TensorFlow | PyTorch | Scikit-learn | XGBoost | Keras | spaCy GenAI: OpenAI GPT-3 | GPT-4 | Lama 2 | Llava | Bard | Mistral | Anthropic Visualization Tools and Libraries: Power BI | Looker | Quicksight | Grafana | Plotly | D3.js | Dash | Matplotlib DevOps and DataOps AWS | GCP | Azure | Docker | Kubernetes | Amazon ECS | Jenkins | GitLab CI/CD | GitHub CI/CD | Bitbucket Pipelines | Ansible | Terraform | CloudFormation | Prometheus | Grafana | Datadog | Zabbix | ELK Stack | Elasticsearch | Logstash | Kibana | Graylog Web Development Front-End: React.js | Redux | Redux-Saga Back-End: Python | Django Rest Framework | Flask We use the Agile approach to ensure great products delivery. As our benefits, we provide the guarantee, NDA signing, and post-service for delivered products. Want to work together? I’d love to hear from you!

🔍 About me: I am representing a new, ambitious, and open to new challenges generation of highly motivated, skilled young professionals with an active life attitude, as well as current results and confirmed achievements. I'm looking for new professional opportunities and ambitious, cutting-edge Cloud projects to leverage my experience, ability to learn fast in order to help achieve great business results for my customers. I have been working as a DevOps as well as a Cloud Infrastructure Engineer for 6 years. My current experience is based on deep engagement with cloud infrastructure and solution architecture development projects. The key elements of my engagement had been related to setting up of automated cloud-based infrastructure by: - using infrastructure as a code - containerization - scripting and configuring CI/CD processes. I really love developing reliable and systematic architectures that can be understood by anyone. 📙My knowledge is particularly strong in EKS, RDS, ElasticBeanstalk, Lambda and ECS services. However, I can also boast that I have a lot of experience with other services as well: Computing: EC2, ECS, EKS, ElasticBeanstalk, Lambda. Database: RDS, DynamoDB, Aurora, DMS (for migration), ElasticCache and Redis. Storages: S3, ECR. Analytics: CloudWatch, Kinesis, Databricks, ElasticSearch. Applications Services: SWF, SES, SQS, SMS, Cloud Search. Security: IAM, WAF, KMS, Directory Service. Routing: API Gateway, Direct Connect, CloudFront, VPN, Route53, Load Balancer. ⚙️ Tech stack: Infrastructure as Code: Terraform, Ansible, AWS Cloud Formation. Continuous Integration and Delivery (CI/CD): GitLab CI/CD, GitHub Actions, Bitbucket Pipelines, Jenkins, CircleCI. Containerization: Docker, Docker-compose, Kubernetes. Operating Systems: Debian & RedHat. Databases: MySQL, Postgres, MongoDB. Monitoring: Grafana, Prometheus, ELK, Datadog. Scripting: Python and BASH. ❓Why me: If you need a specialist who fulfils their commitments at all costs. If you are looking for someone who can develop an architecture for your needs with any ratio of price and functionality, as well as train to work with it with clear documentation. Then contact me. Let's build a future together.

✅ Web Development: Tasks that I can help with: - Develop high-performance, scalable web applications. - MVP development - Legacy project optimization - Support 24/7 - Integrate third-party APIs and services ✅ Data Analytics: We empower companies to transform into data-driven organizations, enabling them to make informed decisions, optimize operations, and achieve strategic goals through actionable insights derived from their data. - Consulting and Strategy Development - Data Warehousing and Storage Solutions: Amazon Redshift, Snowflake, Oracle, Hadoop - Data Pipeline Development: ETL, DBT, ELT, AWS Glue - Data Analysis and Reporting: Excel, SQL, R, Python, SAS - Business Intelligence (BI) Solutions: Tableau, Power BI, QlikView, Looker ✅ DevOps: We are AWS Partner and Vanta Partner I can help with Performance & efficiency, Costs optimization, Availability 95-99,9999%, Scalability Our Services: - Security Compliance: SOC2, HIPAA, GDPR - Cloud Assessment & Architecture - Kubernetes management and support - CI/CD pipeline automation - Monitoring & Alerting - Disaster recovery ✅ Data Scraping: We help to enhance your marketing efficiency, supercharge lead generation, and uncover deep customer insights, enabling you to make data-driven decisions and stay ahead in the competitive market. - Custom Data Scraping Solutions - Social Media Scraping - E-commerce Data Scraping: Extracting product details, prices, reviews, and other relevant information from e-commerce websites. - Competitor Analysis - Custom Data Scraping Solutions

✅ 8+ Years as a Data Engineer 📊 Successful Data Engineering Projects Across 22+ Industries in 5 Countries 👨‍💼 Leading a Team of Data Engineers 🌎 Fluent English Hi, I’m Roman — Senior Data Engineer, Data Engineer Consultant, and Enterprise Data Engineer with extensive experience building scalable data platforms, cloud ecosystems, and modern analytics infrastructure. As a Data Engineer, I help companies design, optimize, and modernize enterprise data environments that transform raw information into actionable business intelligence. My background as a Data Engineer covers the full lifecycle of data engineering — including ETL development, cloud migration, data warehouse architecture, real-time processing, and analytics automation. Why Clients Choose Me ⚡ Senior Data Engineer experienced in enterprise-scale ETL and cloud solutions 📈 Data Engineer focused on scalable analytics architecture and performance optimization 🌎 Fluent English communication and stakeholder management 👨‍💼 Lead Data Engineer with experience managing distributed engineering teams 🔍 Business-oriented Data Engineer focused on automation and measurable outcomes Core Expertise Data Engineering & ETL: Azure Data Factory (ADF), SSIS, Apache Spark, Databricks, PySpark, Apache Kafka, dbt Core, Data Pipeline Automation, Data Migration & Transformation, Batch & Real-Time Processing — delivered by an experienced Data Engineer. Data Warehousing & Architecture: Enterprise Data Warehouse (DWH), Lakehouse Architecture, Databricks Lakehouse, OLAP & SSAS, Data Modeling, Data Governance, Azure Synapse Analytics, Snowflake, BigQuery — implemented by a Senior Data Engineer. Databases: Microsoft SQL Server, PostgreSQL, MySQL, Oracle, Azure SQL Database, MongoDB, Neo4j, Redis, SQLite — managed and optimized by a Data Engineer. Cloud Platforms: Microsoft Azure, AWS (Glue, Athena, S3, MSK, EC2, RDS), Snowflake, Office 365 — modern cloud ecosystems built by a Data Engineer. Programming & Analytics: Python, SQL, Power BI, DAX, Power Query, API Integrations, Data Automation — advanced technical expertise from a Data Engineer. 💼 Services I Offer 🛠️ ETL Pipeline Development Data Engineer building scalable ETL/ELT pipelines Data Engineer automating ingestion and transformation workflows Data Engineer optimizing existing processes and infrastructure Data Engineer integrating APIs, SaaS, ERP, and CRM systems 🛠️ Data Warehouse Engineering Data Engineer designing enterprise DWH solutions Data Engineer implementing scalable analytics platforms Data Engineer creating OLAP models and data marts Data Engineer improving governance and data quality frameworks 🛠️ Cloud Data Engineering Data Engineer implementing Azure cloud data platforms Data Engineer leading cloud migration and modernization initiatives Data Engineer designing lakehouse architecture solutions Data Engineer processing big data using Spark and Databricks 🛠️ Data Integration & Automation Data Engineer connecting SQL, APIs, Excel, ERP, and CRM systems Data Engineer automating reporting and workflows Data Engineer configuring orchestration and refresh processes Data Engineer centralizing enterprise analytics ecosystems 🛠️ BI & Analytics Support Data Engineer preparing optimized datasets for reporting Data Engineer improving Power BI data models Data Engineer supporting executive dashboards and KPI tracking Data Engineer increasing reporting scalability and performance As a dedicated Data Engineer, my goal is to help businesses create reliable, scalable, and future-ready data platforms that support analytics, automation, and strategic decision-making. Whether you need a Senior Data Engineer for ETL development, a Cloud Data Engineer for migration projects, or a Lead Data Engineer to architect a complete analytics ecosystem — I can help. 📩 Send me a message and let’s discuss how a Data Engineer can accelerate your business goals.