Arthur Malferebackend developer · nicomatic · cluses, fr | Version | v1.0.0 | |
|---|---|---|---|
| Updated | |||
| Status | open to interesting collaborations | Since | Sept. 2025 |
I'm Arthur Malfere, a backend developer working at Nicomatic, a French SME that designs connectors and interconnection solutions for aerospace, defense and medical. When I'm not pushing SQL migrations, I like writing CLI tools, reading Mermaid diagrams and tinkering with small weekend services.
I prefer diagrams that fit in a commit, short commits, boring-but-correct architectures, and filter coffee.
Working at :
| Layer | Tools |
|---|---|
| Langs | Go, TypeScript, Python, Bash, SQL |
| Data | PostgreSQL, Redis, SQLite, OpenSearch |
| Infra | Docker, Traefik, Ansible, Debian, Nginx |
| WWW | Echo, chi, HTMX, Templ, Svelte |
| Obs. | Prometheus, Grafana, Loki, OTel |
| Tools | neovim, git, make, just, age |
Self-rated competency, 1-10:
| Skill | Level | Score | Use |
|---|---|---|---|
| Go | 9 / 10 | daily | |
| PostgreSQL | 8 / 10 | daily | |
| Bash | 9 / 10 | daily | |
| TypeScript | 7 / 10 | weekly | |
| Python | 7 / 10 | weekly | |
| Linux | 9 / 10 | daily | |
| Docker | 7 / 10 | weekly | |
| Ansible | 6 / 10 | weekly | |
| HTMX | 5 / 10 | monthly | |
| Svelte | 4 / 10 | monthly |
Three open-source projects I keep returning to. All built on a small Debian box under my desk.
From-scratch re-implementation of the parts of curl I actually use: HTTP/HTTPS GET and POST, custom headers, basic auth, file uploads, redirect follow, compressed bodies. No cache, no cookies, no FTP — just the boring 80% that fits in ~1.5 KLOC and a single static binary. Mostly an excuse to learn Haskell's lazy-bytestring-plus-strict-IO discipline in anger.
Send a 12 GB directory to the colleague in the next chair without touching a cloud and without uploading to anyone. mDNS announces `nrftp._tcp.local` peers; the receiver invites, we negotiate block size and a BLAKE3 rolling hash, then the file streams over QUIC with per-block resume and integrity. No accounts, no daemon, no web UI — a CLI with a small bubbletea progress TUI.
A weekend study in database engines: a wire-compatible-ish MySQL server in Rust. SQL parser → logical planner → cost-based iterator executor → paged storage on top of a B+Tree. ACID via WAL + MVCC read snapshots, single-writer / multi-reader. No query cache, no replication, no JSON — only the parts of MySQL I find genuinely interesting.
| Since | Where | Role |
|---|---|---|
| 2025 · now | Nicomatic · Cluses, FR | Backend Developer |
| 2024 · 2025 | CSB · Cybersecurity school · Lyon, FR | Cybersecurity apprentice |
| 2022 · 2024 | IUT Lyon 2 + Piscine 42 · Lyon, FR | DUT in Data Science · C pupil at 42 |
Mail · arthur@malfere.dev