GC.

Freelance software engineer · Toulouse & remote

I build and ship complex business products.

From existing code to production, I work across web, backend and data — with deep experience in PostgreSQL/PostGIS and sensitive production releases.

Guillaume Claverie

Available for focused engagements or longer missions, primarily remote.

01Existing code recovery
02End-to-end delivery
03Production & operations

01 — Selected work

Real product problems, not demos.

Three examples of how I connect product, software, data and production.

01

iudo · data & AI platform

Oct. 2022 — today

iudo and ChatPLU: mapping, data and LLMs for urban planning.

I have contributed to iudo’s full-stack development since 2022 and designed and built ChatPLU from 2023, an assistant for querying planning regulations in natural language.

A continuously evolving national platform and a public AI assistant that makes complex regulations queryable with sourced answers.

NuxtNestJSPostgreSQLPostGIS
02

Personal project · public network

2014 — today

Cookie Build: more than a decade evolving a complete product.

Launched in 2014, this cross-platform Minecraft network spans game servers, plugins, backend, data, website, iOS and Android apps, and community.

A product still active today, with 50k+ Android downloads and a peak of 2,000 concurrent players.

PaperNuxtSwiftUIFlutter
03

MIX CERAM · business software

Jun. 2022 — today

Intuition: a color science engine connected to a real commercial product.

Since 2022 I have developed and maintained this business application for dental-ceramics professionals, from calculation engine to storefront.

A durable business application with a clearer calculation flow and changes verified from code through the public storefront.

SvelteKitPostgreSQLStripeDocker
View detailed cases

02 — Ways to work together

Three useful engagement formats.

01

Audit and recovery of an existing product

Understand the real system, isolate risk and bring critical code and user paths back under control.

  • Prioritized diagnosis
  • Recovery plan
  • First validated fixes
02

Complex capability, delivered end to end

Scope and ship a capability spanning UI, APIs, data, permissions, payments or integrations.

  • Testable scope
  • Full-stack delivery
  • Production release
03

Data, geospatial and production

Design or harden PostgreSQL/PostGIS flows, business APIs and the infrastructure running them.

  • Models & queries
  • Performance and migrations
  • Deployment & monitoring

03 — Published personal projects

My product lab, shipped for real.

Independent apps and extensions that show I can scope, finish, publish and maintain a product.

A product or a blocker?

Tell me about the context, even if the scope is still unclear.

I reply within 48 hours with the first useful questions and a concrete way forward.

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