Vlad Z.

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.

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