Summary
I am a seasoned Software and Data Engineer and Architect with over 20 years of experience working both with
agile teams and as a sole contributor. My expertise is in architecture, design, and development of software and
data — systems and applications. As a software technologist, I clearly articulate where technology
and programming effort should meet to realize the project. I can tackle technological and
algorithmic problems that exceed the capabilities of typical developers — examples provided upon request.
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Expertise
- Data modeling and schema design
- Relational databases and SQL programming
- Application code structure and architecture
- Concurrency and synchronization
- Numerical algorithms
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Examples of work
| Type of problem |
Example |
| Concurrency |
Criteria for triggering interdependent database processing operation
Log processor program that can be run in many instances allowing for trivial scaling
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| Transactions and persistence |
Autonomous transactions to commit error records in case a work item failed and was rolled back
Large updates (150k rows) that needed to be committed in chunks and available to be reversed by another update as if rolled back
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| Control |
System for controlling the parameters of advertising campaigns to achieve their best performance - both simple and optimal control
Flow control system that allowed for media data to be sent in a low-priority channel over the same link as high priority data
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| Data modeling |
Verbalizing the nature of relationships between entities driving toward schema normalization.
Data model change that simply captured history of changes to the data by adding time attributes to certain entities and forbidding their deletion |
| Application structure |
Familiar with Volatility-Based-Decomposition (VBD). Fan of Domain Driven Design (DDD).
Experienced with microservices and cloud deployments.
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| Communication |
Formalization of the Graphon RapidX display protocol and complex driver code for optimal transmission of graphical objects
Layered communication protocol system
Clock correlation protocol for multi-user online game
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Interests, Opinions
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Open Source Software contributions
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Professional Credentials and Certifications
- Ph.D. in chemical physics, Indiana University, Bloomington 1989
- BS/MS in theoretical physics, Nicolaus Copernicus University, Torun, Poland, 1981
- Azure Fundamentals Certification
Additional links and material
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