Beniamin Hławiczka
I am a seasoned software and data engineer with 18+ years of experience coding for a living and for fun.
About
I am a seasoned software and data engineer with 18+ years of experience coding for a living and for fun. I have extensive analytical skills and a strong foundation in computer science and software development, including object-oriented design, functional programming, data structures, operating system internals, and algorithm design and complexity analysis.
I am a team player with a strong leadership and business-value oriented mindset, focusing on technical excellence and managing technical debt. I make data- or experience-based decisions between short- and long-term trade-offs, and I actively listen to diverse perspectives to advocate for product ownership and user outcomes.
- 17 years' experience
- Joined September 2025
Industry experience
- Software & Internet
- Media & Entertainment
- Professional Services
- Other
Work experience· 10 roles
Led a team of 4 developers delivering backend features for Core HR to scale for medium/large customers; designed API and data queries with advanced grouping and filtering; implemented tests; migrated data structures; led integration with a major German payroll system; provided daily data insights to multiple teams; worked with AWS, PostgreSQL, Docker, TypeScript, GraphQL.
Designed and built a company-wide secure Data Lake in AWS; created TB-scale ingestion/transformation pipelines (Step Functions, ECS, ECR, Glue); modeled medicine data in Elasticsearch; implemented data quality monitoring and a metadata engine (Amundsen); improved Data Science delivery and reduced infra costs; AWS Data Lab credential approved.
Implemented new features and maintained backend/frontend of internal applications; designed and maintained ETLs processing PB-scale data for reporting, accounting, monitoring and sales; introduced static code analysis and feature modularization.
Education
Certifications and awards
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