Craig Blaszczyk
Staff Engineer at Zepz
London, England, United Kingdom
Summary
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Seniorđ
Top SchoolCraig Blaszczyk is a Staff Engineer based in London with 14+ years building secure, high-performance Python backends and serverless architectures on AWS. He combines hands-on platform engineering with cultural leadershipâmentoring teams, driving CI/CD and IaC practices, and promoting small, regular deployments and rollback-conscious Go Live processes. A pragmatic advocate for documentation, "3 Amigos" grooming, and developer productivity hacks like hack weeks, he has led migrations, API standardisation and operationalisation across multi-stack environments. Craig is an active open-source contributor to well-known projects such as Zappa and Django REST Framework, improving API robustness and serverless integrations. AWS-certified and experienced across DynamoDB, Postgres, Terraform and monitoring stacks, he excels at turning complex integration challenges into reliable, auditable systems. An outgoing communicator, he often pairs technical change with measurable cultural and process improvements that speed delivery while reducing risk.
14 years of coding experience
14 years of employment as a software developer
2.1 Computer Science, 2.1 Computer Science at The University of York
Portuguese, English, Spanish, Portuguese, Spanish, Italian
Stackoverflow
972reputation
133kreached
30answers
2questions
Github Skills (35)
open-api-v310
api-rest10
javascript10
python10
apidoc10
api-design10
restful-api10
django10
aws-lambda10
django-rest10
swagger10
flask-ask10
api-specification10
api10
rest10
Programming languages (11)
Github contributions (5)
encode/django-rest-framework
Jul 2011 - Jan 2015
Web APIs for Django. đ¸
Role in this project:
Back-end Developer
Back-end DeveloperContributions:27 commits, 2 PRs, 13 comments in 3 years 6 months
Contributions summary:Craig focused on improving the Django REST Framework by adding unit tests to expose and resolve m2m creation issues with through tables. They updated mixins to correctly handle m2m data with through fields, involving the creation of objects in related tables. Furthermore, the user enhanced the codebase by integrating an XML parser and refining error messages to improve clarity and consistency.
apipythondjango-rest-frameworkdjangoweb-apis
Miserlou/Zappa
Aug 2016 - Apr 2018
Serverless Python
Role in this project:Backend Developer
Backend DeveloperContributions:7 commits, 8 PRs, 15 comments in 1 year 8 months
Contributions summary:Craig contributed to the `zappa` project, which focuses on serverless Python applications. Their work included enhancing the codebase by allowing overriding of method header types, adding the ability to specify an authorizer ARN, and resolving issues with Flask script name based on the domain. Additionally, they implemented changes to update CORS configurations, demonstrating a focus on API Gateway and application functionality within the serverless environment.
api-gatewaypythonpyramidserverless-applicationsdjango
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