Piotr Roszatycki
DevOps Consultant at Freelensapp
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolPiotr Roszatycki is a seasoned DevOps consultant and platform engineer with 19 years of experience building cloud-native infrastructure and developer platforms across AWS and GCP. He helps organizations create efficient “software factories” by designing IaC (Terraform, CDK), CI/CD pipelines (GitLab, GitHub, Jenkins) and improving developer experience to shorten lead times and reduce errors. Piotr has led platform initiatives in businesses from startups to automotive and gaming firms, migrating legacy services to Kubernetes and embedding SRE practices for better availability and observability. As an active open-source contributor, he has improved type definitions in the widely used DefinitelyTyped repo and fixed critical server-side issues in Plack, reflecting attention to both developer ergonomics and low-level robustness. Based in Warsaw, he combines deep practical expertise across backend, frontend and cloud stacks with a pragmatic focus on automation, reliability and faster, predictable delivery.
19 years of coding experience
28 years of employment as a software developer
engineer, Computer Science and Information Systems, engineer, Computer Science and Information Systems at West Pomeranian University of Technology in Szczecin
English, Polish
Stackoverflow
13reputation
49reached
0answers
1question
Github Skills (20)
middleware10
posixct10
http10
typescript10
perl10
type-definition10
httpd-server10
http-server10
posix10
typescript-types10
nodejs10
typescripts10
nodemailer9
performance-optimization8
ioredis8
Programming languages (19)
Github contributions (5)
DefinitelyTyped/DefinitelyTyped
Oct 2017 - Dec 2019
The repository for high quality TypeScript type definitions.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 71 commits, 57 PRs in 2 years 2 months
Contributions summary:Piotr primarily contributed to the DefinitelyTyped repository by providing and updating TypeScript type definitions for various Node.js packages. Their work involved adding new options, correcting existing definitions, and ensuring compatibility with the latest versions of the packages. The user's contributions included type definitions for packages such as `ioredis`, `nodemailer`, `smtp-server`, `wtfnode`, `simple-websocket`, `jspath`, `season`, `replacestream`, `readline-transform`, `dkim-signer` and `fast-shuffle`, improving the developer experience.
typescriptdefinitiondtstypingstypescript-definitions
plack/Plack
Aug 2012 - Nov 2016
PSGI toolkit and server adapters
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 commits, 1 PR in 4 years 3 months
Contributions summary:Piotr contributed to the Plack project by addressing several server-side issues. They corrected timezone handling in the access logging middleware, improved HTTP server functionality by setting the `REMOTE_PORT` environment variable, and addressed issues related to POSIX locale settings on Android. They also optimized performance and stability by conditionally setting TCP_NODELAY and avoiding repeated `eval` calls within request processing loops.
psgi
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