Robert Laszczak
Co-Founder, Principal Go Engineer at Three Dots Labs
Krakow, Lesser Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolRobert Laszczak is a Co-Founder and Principal Go Engineer with a decade of experience building scalable, maintainable systems from Krakow, Poland. He specializes in event-driven architectures, DDD, and Go-based backend platforms, having led settlement and financial orchestration at Karhoo and co-created tooling and knowledge at Three Dots Labs. Robert is a hands-on engineer who moves between core infrastructure, message systems (including Kafka/rdkafka), and pragmatic front-end integrations—evidenced by contributions to widely used open-source projects like Watermill and a Go DDD example app. He combines product-minded domain understanding with meticulous refactoring and testing practices to produce auditable, long-lived systems. Not actively seeking roles, he continues to shape best practices for event sourcing and cloud-native Go deployments.
10 years of coding experience
11 years of employment as a software developer
Inżynier (Inż.) Informatyka, Inżynier (Inż.) Informatyka at Politechnika Krakowska im. Tadeusza Kościuszki
Github Skills (15)
golang10
kafka10
go10
refactoring10
ddd10
message-queue10
rdkafka10
testing9
apidoc9
firebase9
api9
clean-architecture9
react8
cqrs8
serverless7
Programming languages (4)
Github contributions (5)
ThreeDotsLabs/wild-workouts-go-ddd-example
May 2020 - May 2022
Go DDD example application. Complete project to show how to apply DDD, Clean Architecture, and CQRS by practical refactoring.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:10 releases, 1 review, 35 commits in 2 years
Contributions summary:Robert contributed to both the frontend and backend of the Go DDD example application. They added frontend code, specifically focusing on the `ApiClient.js` file, which suggests involvement in API integration. The user also made changes related to authentication by letting Firebase handle it, and implemented refactoring to align with DDD principles. Furthermore, the user worked on various improvements and refactoring, including updates to gRPC definitions.
gcpserverlesscqrspracticalgoogle-cloud
ThreeDotsLabs/watermill
Nov 2018 - Jan 2023
Building event-driven applications the easy way in Go.
Role in this project:Back-end Developer
Back-end DeveloperContributions:32 releases, 74 reviews, 241 commits in 4 years 3 months
Contributions summary:Robert contributed to the simplification of message interfaces and the refactoring of the Kafka producer using the rdkafka library. Their work involved modifying test files to ensure the functionality of the message infrastructure, which indicates involvement in testing. The user also worked on various parts of the code base, including the message interface, and infrastructure-related files, showing a focus on the core functionality of the library.
golangstream-processingeventsnatsevent-sourcing
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