Freelancer profile translated to English.
Back to original languageAbout Killian'
If you're looking for someone who says yes to everything and delivers in 48 hours, that's not me.
I'm Killian, a full-stack developer with 7 years of experience on modern JavaScript/TypeScript stacks — React, Vue, Node — and a solid foundation in JVM (Java/Kotlin). I work full-time on a SaaS product (BTP sector) and take on 2 to 3 freelance missions per quarter, chosen carefully.
What sets me apart: I don't just deliver an app, I deploy and host it properly — Docker, Traefik, OVH infrastructure. For companies that want to control their data (GDPR, EU hosting, alternative to US SaaS), this is a real issue, and it's my domain.
Specifically:
→ Custom full-stack web applications (React/Vue + Node)
→ Robust and documented APIs
→ Self-hosted, secure, and maintainable deployment and hosting (Docker, CI/CD)
→ Taking over and refactoring existing code (including projects that have gone off the rails)
→ Direct communication, without jargon
My niche: SaaS platforms, business applications, and migrations to infrastructure you control. Available for a discussion if your project is viable.
English
Native or bilingual
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- Mythlane SASUFull-stack developer & founderSOFTWARE PUBLISHINGJanuary 2026 - Today (5 months)Bordeaux, FranceUnder my company Mythlane (SASU, Bordeaux), I design and operate web products autonomously.Main achievement: VotePipe, a SaaS platform in production (Vue/Nuxt + Node.js/TypeScript + PostgreSQL) — authentication, subscription billing, secure webhooks, multi-vendor integrations, REST API, analytics dashboard.Fully self-hosted infrastructure that I manage myself: Docker, Traefik reverse-proxy, Gitea, PostgreSQL/Redis, monitoring and secret rotation, on an OVH server. From product design to production operation.Stack: Vue.js, Nuxt, Node.js, TypeScript, Java/Kotlin, PostgreSQL, Docker, Traefik, OVH.
- mashe.Full-stack Ruby on Rails developer (permanent contract)CIVIL ENGINEERINGJuly 2024 - Today (1 year and 11 months)Paris, FranceFull-stack developer at mashe., a SaaS company in the BTP sector (document management for construction site personnel — DPAE, BTP card, safety induction — and physical access control).I design and maintain single-handedly “mashe. - connect”, the integration module that connects the platform to access control systems (turnstiles) deployed on construction sites. Specifically: retrieving the authorization status of each attendee, then synchronizing in near real-time with several third-party market systems via their APIs, through a VPN/proxy connection to the on-site station.Reliability-oriented architecture: jobs scheduled every 5 minutes with health checks to avoid querying offline stations, on a shared PostgreSQL database. Module developed from scratch, for which I am solely responsible — from design to operation and production debugging.Stack: Ruby on Rails, PostgreSQL, multi-API integration, asynchronous jobs.
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Education
- Web Developer (Ruby / Ruby on Rails) — RNCP TitleLe Wagon2023Bootcamp intensif de développement web full-stack : Ruby, Ruby on Rails, JavaScript, SQL, HTML/CSS, Git et méthodologies agiles. Projet final déployé en production. Titre RNCP obtenu.
- Bac Pro in Digital Systems — Mention BienLycée Professionnel Pierre-André Chabanne2021Baccalauréat professionnel Systèmes Numériques (électronique, réseaux, systèmes informatiques). Obtenu avec mention Bien.
Certifications
- Web Development BootcampLe Wagon2023