David Opoku - Manager Technical Instruction at dbt Labs

David Opoku

Manager Technical Instruction at dbt Labs

Berlin, Germany

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Summary

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Rockstar

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Top School

David Selassie is a software engineer in Portland, Oregon with 14 years of experience building backend systems, service-oriented architectures, and data-driven product features informed by a background in chemistry and chemical physics. He blends functional programming and data analysis to deliver robust stream-processing and geospatial solutions, and has contributed notable backend improvements to the open-source Bytewax project to make error tracebacks and input patterns more ergonomic. Curious and detail-oriented, he pairs rigorous testing and visualization skills with a knack for teaching and storytelling, helping teams turn complex data into understandable features. Outside code, his eclectic interests—from game design to boom box making—feed a creative problem-solving approach that surfaces in both product design and engineering craft.

14 years of coding experience

7 years of employment as a software developer

Master of Science (M.S.), Computer Science, Master of Science (M.S.), Computer Science at New Jersey Institute of Technology

IGCSE, Physical Sciences, IGCSE, Physical Sciences at SOS Hermann Gmeiner International College

Bachelor of Arts (B.A.), Biology, General, Bachelor of Arts (B.A.), Biology, General at Swarthmore College

International Baccalaureate Diploma Program, Biology, Chemistry, Mathematics, International Baccalaureate Diploma Program, Biology, Chemistry, Mathematics at UWC Costa Rica

English, Spanish, akan

Github Skills (7)

pyo10

error-handling10

rust10

python10

data-processing10

macros9

code-optimization8

Programming languages (8)

JavaRustSCSSJavaScriptGoRubyPythonEmacs Lisp

Github contributions (5)

bytewax/bytewax

Feb 2022 - Jan 2023

Python Stream Processing

Role in this project:

Back-end Developer

Contributions:8 releases, 233 reviews, 265 commits in 11 months

Contributions summary:David contributed significantly to the development of the Bytewax project, focusing on enhancing the codebase to support the use of the `?` operator within PyO3-using code. This was achieved by implementing a `with_traceback!` macro to capture and display tracebacks for errors. Furthermore, the user added an input helper module with pre-built input structures like `single_batch`, `tumbling_epoch`, and `fully_ordered` which improved the usability of the Bytewax framework for data processing tasks. The user also addressed a bug in the `TdPyAny` equality implementation.

stream-processingdeltapythonstreaming-datadata-science

PdxCodeGuild/Full-Stack-Day-Class

Mar 2016 - Oct 2016

Contributions:599 commits, 1 PR, 387 pushes in 6 months

guilddaysyllabuspdx

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