Description

7+ years migrating and scaling data platforms for financial services, pharmaceutical, and QSR clients. Built

and led migrations from on-premise Oracle to AWS, unified global DWH schemas, and ran the full

architecture and delivery of McDonald’s analytics pipeline — taking it from SLA breach at 2,000 locations to

10× capacity at half the cloud cost. Comfortable owning architecture decisions end-to-end and working

directly with senior stakeholders across multiple geographies.

Languages

English
Native or bilingual
Czech
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

MBI • · McDonald's
Architecture Lead & Principal Developer
August 2025 - May 2026 (9 months)
– Migrated global analytics pipeline to AWS EMR Serverless Spark + dbt; runtime 4.5 hrs → 70 min, daily cost $151 → $64 (59% down) — pipeline scaled 10× from 2k to 20k locations inside a 4-hour SLA it was previously breaching
– 7-phase optimisation programme: SQL CTE rewrites cut Snowflake compute 98%, Spark executor tuning resolved OOM failures at scale, fact/dimension model split reduced JSON cell size 60%
– 39 automated DQ rules in Spark with cascading exclusion logic; real-time fail-fast replacing ~1-hour Snowflake batch detection
– ~40 AWS resources via Terraform (15 files): EMR Serverless, Lambda, 21-state Step Functions, Snowpipe, SQS, CloudWatch alarms and dashboards
SQL Serverless Computing Database Management (e.g., SQL, NoSQL) Cloud Administration CI/CD Management
Biligence • · Organon / Ministry of Justice
Data Architect
May 2024 - July 2025 (1 year and 2 months)
– Designed Snowflake + Collibra data governance solution for Organon post-spin-off pharma entity; built Data Quality Framework from scratch covering QA test coverage, ownership model, and governance processes
– Ministry of Justice: full current-state architecture analysis, stakeholder requirements gathering, component and dependency mapping; designed mechanisms for elasticity, scalability, performance, reliability, and security
Profinit • · MSD (Merck)
Senior Data Engineer
January 2021 - April 2024 (3 years and 3 months)
– Market unification: switched DWH load from per-country to per-region across 8+ markets; consolidated two globally deployed DWH schemas into one without workload disruption; consolidated and optimised Qlik QVDs
– Full data migration: Oracle DWH, CA Automation, and manual deployments moved to Redshift, CloudBees, Jenkins; authored Airflow DAGs replacing all CA Automation orchestration
– Japan data governance initiative: collaborated with business stakeholders to implement Collibra data quality rules; replaced manually run test suites with automated checks