Robert Witkowski
Co-Founder & Chief Technology Officer at TwójPsycholog
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolRobert Witkowski is a pragmatic CTO and co-founder with 11+ years of experience designing and delivering cloud-native, microservices-driven systems for insurance, health and enterprise domains. He blends hands-on full-stack engineering (Java, .NET, Angular, Vue) with solution architecture and DevSecOps leadership, having built CI/CD platforms, migrated legacy estates to Kubernetes, and led SRE-focused tooling. At TwójPsycholog he architects a mental-health assistant ecosystem integrating AI, search (Qdrant), observability and many third-party services, demonstrating product-minded engineering at scale. An active open-source contributor, he authored microservices proof-of-concept repos that span Micronaut and .NET Core with Vue frontends, showing both backend and UI craftsmanship. A fan of the Software Craftsmanship Manifesto, he pairs domain-driven design and actionable patterns with machine-learning curiosity—he’s implemented ML classifiers and PWA/scan-based solutions in past R&D. Based in Warsaw with an academic background from Warsaw University of Technology, he combines entrepreneurial drive with pragmatic, well-crafted technical solutions.
11 years of coding experience
8 years of employment as a software developer
Magister (Mgr) Informatyka, Magister (Mgr) Informatyka at Warsaw University of Technology
English, Polish
Stackoverflow
207reputation
58kreached
7answers
8questions
Github Skills (30)
microservices-application10
micronaut10
front-end-development10
vue10
netcore10
microservices10
vue-jsx10
api-design9
restful-api9
back-end-development9
api-rest9
dockers9
java9
docker9
javas9
Programming languages (12)
Github contributions (5)
asc-lab/micronaut-microservices-poc
Jul 2018 - Apr 2021
Very simplified insurance sales system made in a microservices architecture using Micronaut
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:240 commits, 32 PRs, 135 pushes in 2 years 9 months
Contributions summary:Robert contributed significantly to the development of the project. They added initial API definitions and API updates for the pricing, and policy services, indicating backend development. Further, they moved and expanded examples for different features of the microservices architecture (kafka, features-example), implemented front-end components with Vue.js and added UI improvements.
spring-bootinsuranceaxon-frameworkmicronautdocker
asc-lab/dotnetcore-microservices-poc
Sep 2018 - Mar 2021
Very simplified insurance sales system made in a microservices architecture using .NET Core
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:62 commits, 2 PRs, 41 pushes in 2 years 6 months
Contributions summary:Robert primarily contributed to the .NET Core microservices architecture, adding a Vue.js SPA application for the frontend. They developed the UI components for product details and policy details. They also implemented a build script and made various code improvements including refactoring and removing unnecessary imports and whitespace. The user also fixed build scripts.
martenvertical-slice-architecturecqrsmicroservicedomain-driven-design
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