Raphael Poss
Founder at Q10E Labs
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top School
Top expert inGo Development and Data Management
Raphael Poss is a founder and seasoned technology leader with 17 years of experience turning messy deep-tech problems into clear product and organizational outcomes. He pairs a PhD in computer architecture and a decade in academia with ten years building and leading engineering teams at companies like Cockroach Labs, where he was a top contributor and led cross-org programs impacting ~200 people. Raphael helps founders and investors alike—acting as fractional CTO, VP Engineering, or due-diligence advisor—by clarifying product strategy, improving engineering standards, and restoring predictable delivery cadences. He is an active open-source contributor across database and TUI projects (notably meaningful contributions to CockroachDB and the bubbletea ecosystem), bringing hands-on improvements from authn/authz and transactions to terminal input handling. Based in Amsterdam but working US hours, he emphasizes speed with clear boundaries, respectful leadership, and a 90-day cycle of tangible progress.
17 years of coding experience
3 years of employment as a software developer
MSc, Computer Science, MSc, Computer Science at EPITA: Ecole d'Ingénieurs en InformatiquePh.D., Computer Architecture, Ph.D., Computer Architecture at University of Amsterdam
Dutch, English, French
Github Skills (48)
tui10
transaction10
authorizations10
database-api10
postgresql10
cockroachdb10
back-end-development10
python10
clojure-cli10
testing10
command-line-interface10
databases10
user-authentication10
test-framework10
authentication10
Programming languages (19)
Github contributions (5)
cockroachdb/errors
Jun 2019 - Jan 2023
Go error library with error portability over the network
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 releases, 49 reviews, 172 commits in 3 years 8 months
Contributions summary:Raphael primarily contributed to the `cockroachdb/errors` repository, a Go error library designed for network portability. The commits involve importing initial implementations and implementing type aliases. They also added comments, removed a reference to CockroachDB, and ensured that the output of `Safe()` could be formatted. Additionally, the user fixed call stack format mismatches and implemented secondary.CombineErrors().
golangerrorportability
cockroachdb/cockroach
Jan 2016 - Jan 2023
CockroachDB — the cloud native, distributed SQL database designed for high availability, effortless scale, and control over data placement.
Role in this project:Back-end Developer
Back-end DeveloperContributions:3097 reviews, 4886 commits, 3942 PRs in 7 years 1 month
Contributions summary:Raphael's commits primarily focus on improving the authentication and authorization (authn/authz) flow within the CockroachDB codebase, as evidenced by changes in the `rpc` package to clearly separate authentication and authorization concerns, along with the addition of tests verifying the correct behavior of these systems. The contributions include enhancements to gRPC communication and error handling related to authentication and authorization. The user is making changes to the core functionality that handles the communication between different nodes/tenants and is helping with improvements that make the system more secure.
distributed-sqldistributed-sql-databasemysqlsql-databasesql
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