$ whoami

// Raphaël Genet

const role = "Staff Engineer & Open Source"

const location = "Paris, France"

const available = "Q3 2026 contracts"

view work() github/glitchdev

glitch.dev — terminal

$ git clone https://github.com/glitchdev/vaultkey

✓ Cloned in 0.8s

$ cd vaultkey && cargo build --release

Compiling vaultkey v2.1.0 (target/release)

✓ Built in 4.2s (3.4k stars on GitHub)

// selected_projects

Featured Open Source

View all projects

noctua.dev

★ 2.1k

Real-time collaborative code editor. WebSockets, Monaco Editor, Y.js CRDT.

Next.jsRustWebSocketsPostgreSQL

View source Quick setup instructions

// tech_stack

Skills & Systems

Launch Shell Simulator

Languages

TypeScript
Rust
Go
Python
SQL

Frontend

React 19
Next.js 15
Framer Motion
Radix UI
Tailwind

Backend

Node.js
Axum
Gin
tRPC
GraphQL

Infra

PostgreSQL
Redis
Docker
Kubernetes
Cloudflare

// the_setup

Work Environment

// career_timeline

Experience

View Full Architecture Impact

2024

Staff Engineer

@ Stripe

Led infrastructure reliability for payment processing at scale.

2023

Senior Frontend

@ Vercel

Core contributor to Next.js App Router and Turbopack.

2021

Founding Engineer

@ Linear

Built the real-time sync engine from scratch (Yjs + CRDTs).

// by_the_numbers

12+

years of experience

since 2014

///

3.4k

GitHub stars

across 6 repos

///

99.99%

uptime SLA

last 24 months

///

140ms

latency cut

p99.9 at Stripe

///

FAANG companies

Stripe · Vercel · Linear · Algolia

///

45%

payload reduction

CRDT compaction pipeline

///

12+

years of experience

since 2014

///

3.4k

GitHub stars

across 6 repos

///

99.99%

uptime SLA

last 24 months

///

140ms

latency cut

p99.9 at Stripe

///

FAANG companies

Stripe · Vercel · Linear · Algolia

///

45%

payload reduction

CRDT compaction pipeline

///

12+

years of experience

since 2014

///

3.4k

GitHub stars

across 6 repos

///

99.99%

uptime SLA

last 24 months

///

140ms

latency cut

p99.9 at Stripe

///

FAANG companies

Stripe · Vercel · Linear · Algolia

///

45%

payload reduction

CRDT compaction pipeline

///

// what_i_do

Services

Get a quote

€1,200 / day

Staff Engineering

Diriger à la frontière technique

I embed as a principal or staff engineer on product teams — owning critical infrastructure, driving RFCs, and unblocking roadblocks at the systems level. I've led teams at Stripe and Vercel on problems where the cost of failure is measured in eight figures.

ArchitectureIC LeadershipRFCsTech Debt

€8,000 flat

Performance Audits

Find the milliseconds your users feel

A focused 2-week engagement: profiling, distributed tracing, bottleneck identification, and a prioritized fix roadmap. Deliverable is a written report + working patches. Previous clients saw p99 reductions between 30 and 60 percent.

ProfilingTracingPostgreSQLRust sidecars

€800 / day

Open Source Advisory

Sustainable OSS strategy for your company

Project governance, contributor onboarding pipelines, license audits, and roadmap sequencing. I help engineering-led companies extract compounding value from open source without burning their maintainers.

GovernanceLicensingCommunityRoadmap

Custom

Technical Due Diligence

Know what you're acquiring

Pre-acquisition or pre-investment deep dives: codebase quality, security posture, scalability ceiling, key-person risk, and hidden liabilities. Written report in 5 business days, suitable for board presentation.

SecurityScalabilityRiskM&A

// how_it_works

Engagement Process

git clone — Discovery

30-minute async brief via Loom or written document. I read your tech stack, understand the constraint space, and flag anything that changes scope.

npm install — Alignment

Shared document with goals, success criteria, and weekly cadence. No surprise pivots. If the problem shifts mid-engagement, we re-scope in writing.

cargo build — Execution

I work in short cycles with visible output. Each week ends with a Loom walkthrough of what shipped, what didn't, and why.

✓ Released — Handoff

Clean handoff: documented architecture decisions, runbooks, and a post-engagement Q&A window (2 weeks). No orphaned code.

// social_proof

What engineers say

“

Raphaël rewrote our transaction reconciliation service in four weeks. P99 dropped from 900ms to 120ms. The codebase he left behind is the cleanest we have — and that's saying something.

Léa Fontaine

CTO, Finary

“

His performance audit found three systemic query patterns we'd missed for two years. The fix was deployed in one sprint. Worth ten times the fee.

Yohan Mbeki

VP Engineering, Alan

“

Detailed, precise, communicates tradeoffs instead of opinions. He delivered a 25-page architecture RFC on our data layer that we shipped almost verbatim. Rare.