Stefan Zhelev
Data Professional
phone
WhatsApp

IBM Enterprise Services www.ibm.com

Period:
Sep 2016 - Oct 2017 (1 year 1 month)
Position:
Predictive Analytics and Reporting
Organization:
EMEA Predictive Analytics and Reporting
Responsibilities:
Delivery of SLA and process reports, ETL automation, predictive analytics development and maintenance
Achievements:
Pioneered machine learning implementation reducing ATM operational costs by $2M annually across the EMEA region.

Work Experience

Octopyth Data Engineering and Operations 1 year 11 months
MiFinity Business Intellignece Manager (1 direct report) 7 months
Nexo Senior Data Engineer (2 direct reports) 1 year 10 months
Rank Interactive Senior Data Analyst 1 year 8 months
IBM Predictive Analytics and Reporting 1 year 1 month
Hewlett-Packard Service Level Management and Reporting 6 years 2 months

Skills

AI
Claude Code
ChatGPT
Gemini
MCP
RAG
LangGraph
Langfuse
n8n
Databases
PostgreSQL
MongoDB
MySQL
MSSQL
Elasticsearch
InfluxDB
Qdrant
Warehouses
Clickhouse
Redshift
BigQuery
Synapse Analytics
Databricks
Snowflake
Processing
Temporal
Airflow
Scrapy
Airbyte
PeerDB
Kafka
Debezium
dbt
Coding
SQL
Python
Pandas
DuckDB
AWS Data Wrangler
Boto3
Visualization
Metabase
Superset
Google Looker
Power BI
Tableau
Dash
Deployment
Git
Terraform
Docker
Kubernetes
ArgoCD
Jenkins
Grafana
AWS
S3
Glue
Athena
Lambda
Aurora
DynamoDB
Sagemaker
Azure
Data Factory
Logic Apps
Functions
Blob Storage
Integrations
OpenAI
Jira
Google Analytics
Monday
Salesforce
Etherscan
Playtech
Frameworks
OKR
Data Governance
Balanced Scorecard
Lean Six Sigma
ITIL
Kanban
Qualification
Data Engineering
Querying MS SQL 2012
Scrum Master
ITIL Service Operation
Data Science