Gabriel Ciuloaica
CTO & Co-Founder at AppFactor
Cluj-Napoca, Romania
Summary
👤
Senior🎓
Top SchoolGabriel Ciuloaica is a veteran software architect and CTO with over 16 years of hands-on experience and 20+ years working with languages like Rust, Scala, Java, and C++. As co‑founder of AppFactor he builds enterprise-grade cloud solutions for Fortune 500 clients while maintaining a strong developer pedigree from roles at Betfair and Nokia through independent consulting. He specializes in high-performance distributed systems, event-driven architectures, and patterns such as event sourcing and CQRS, and frequently contributes to influential open-source Scala projects like zio-http and zio-schema where he’s driven refactors and cross-version compatibility work. Comfortable switching between deep technical implementation and leadership, he brings a pragmatic focus on scalable backend design and a track record of improving core libraries and HTTP/networking integrations. Based in Cluj-Napoca, Romania, he pairs entrepreneurial drive with low-level systems expertise, often surfacing subtle API and compilation fixes that keep large codebases robust.
16 years of coding experience
24 years of employment as a software developer
Master, BS, Master, BS at Babeș-Bolyai University
Project Management Institute
Sun Microsystems
Sun Microsystems
Romanian, English
Stackoverflow
671reputation
46kreached
27answers
3questions
Github Skills (29)
application-framework10
netty10
api-design10
testing10
app-framework10
http10
zio10
schema-design10
java10
scala10
javas10
http-server10
http-client10
web-framework10
rest-api10
Programming languages (8)
Github contributions (5)
zio/zio-http
Dec 2021 - Dec 2022
A next-generation Scala framework for building scalable, correct, and efficient HTTP clients and servers
Role in this project:
Backend Developer
Backend DeveloperContributions:43 reviews, 69 commits, 84 PRs in 1 year
Contributions summary:Gabriel made several significant contributions related to HTTP client and server development within the `zio/zio-http` repository. They refactored the server API to follow the ZIO2 pattern, introducing default and configurable layers, and updating tests and examples. Moreover, the user implemented multiple header value implementations to enrich the functionality of the HTTP library, adding new content, and request/response control. Also, they fixed client request issues in streaming scenarios, ensuring proper operation during data transfer.
zioscala-libraryhttp-clientwebsocketscala
zio/zio-schema
Oct 2022 - Jan 2023
Compositional, type-safe schema definitions, which enable auto-derivation of codecs and migrations.
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 reviews, 20 commits, 48 PRs in 3 months
Contributions summary:Gabriel primarily focused on refactoring and improving the `zio-schema` library, a Scala-based project for defining and managing schemas. Their commits involved renaming types, removing unused code, and simplifying implementations, specifically related to the "Meta" type and diffing logic. The user also addressed compilation issues and updated macros for Scala 2.12.x and 3.x, demonstrating a deep understanding of the codebase and its evolution. Furthermore, the user contributed to enum and annotation implementations.
derivationziotype-safeschema-validationdefinitions
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