Dan Markiewicz
Manager, Customer Support Engineering at Checkr, Inc.
Oakland, California, United States
Summary
🤩
Rockstar🎓
Top SchoolDan Markiewicz is a customer-focused technical leader with nine years in engineering management and over a decade of experience resolving complex telecom and API issues across global teams. Currently Manager of Customer Support Engineering at Checkr after senior supportability and technical leadership roles at Twilio, he excels at translating operational data into scalable support strategies that reduce incidents and elevate product quality. Known for a people-first management style, he has scaled and mentored teams through regional and global expansions while championing cross-functional collaboration between product, engineering, and GTM. His background in applied statistics and past work as a research statistician gives him uncommon strength in analytics-driven troubleshooting and metric-backed advocacy. An open-source contributor to the popular graphene GraphQL project, he also brings hands-on engineering sensibilities—improving code quality tooling and documentation—to supportability efforts.
8 years of coding experience
11 years of employment as a software developer
Animal Behavior and Ethology, Animal Behavior and Ethology at University of WashingtonBachelor of Arts - BA, Biology/Biological Sciences, General, Bachelor of Arts - BA, Biology/Biological Sciences, General at Swarthmore College
Github Skills (13)
application-framework10
graphql10
app-framework10
web-framework10
enforcement10
flake10
isort10
coding-style10
python10
wordpress-graphql10
wpgraphql10
graphene10
documentation7
Programming languages (4)
Github contributions (5)
graphql-python/graphene
May 2018 - Mar 2019
GraphQL framework for Python
Role in this project:
Backend Developer
Backend DeveloperContributions:9 commits, 22 PRs, 28 comments in 9 months
Contributions summary:Dan focused on improving the codebase, primarily by incorporating tools for code quality and style. This included adding a pre-commit hook for `isort` to automatically sort imports and integrating a `flake8` hook to enforce code style guidelines. They also updated contributing documentation and bumped versions of pre-commit hooks. Their work enhanced code maintainability and consistency within the `graphene` framework.
pythonrelaygraphql-frameworkframeworkgraphql
dan98765/graphql-core
May 2018 - Mar 2019
GraphQL base implementation for Python
Contributions:6 PRs, 36 pushes, 22 branches in 9 months
pythongraphqlasyncio
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