Théophile Delmas

Building systems, learning along the way.

I like working with people who have an idea and need someone to help build it. I write backend code, figure out the structure as we go, and try to make early decisions that we won't regret later.

Projects

Things I've worked on

Bount.ing project image

Bount.ing

A marketplace idea for funding open-source projects. I worked on the backend, payment flows, and trust mechanisms.

Preujust.cat project image

Preujust.cat

A price transparency tool for Catalunya. Collects supermarket prices and lets people compare them.

42 Barcelona project image

42 Barcelona

Helped set up and run the technical and pedagogical infrastructure for the campus — servers, tools, and student systems.

Rooster project image

Rooster

An Android alarm that wakes you with the sunrise at your location. Built with Kotlin and Jetpack Compose.

Smokeless project image

Smokeless

A quit-smoking tracker for Android. Log sessions, resist cravings, watch your progress over time.

FlashWizard project image

FlashWizard

A CLI and web tool to flash custom ROMs on devices. Makes installing alternative OS less scary.

Emuji project image

Emuji

React to Spotify tracks with emojis and discover playlists based on collective vibes.

About Me

About

I like working on the early stage of projects — when someone has an idea and it needs to become something real. I'm not always sure of the best approach, but I enjoy figuring it out together.

I write code, mostly backend. I try to get the structure right early so things don't fall apart later. I've made enough mistakes to know which shortcuts are worth it and which ones aren't.

I've worked on a few different things — marketplaces, campus infrastructure, price comparison tools. Each time I learned something new. I'm still learning.

Timeline

PreuJust logo

Founder & Lead Engineer

PreuJust · Barcelona, Catalonia, Spain

Jan 2026 → Today

Experience
  • Founded price transparency platform for Catalunya
  • Designed and built data collection system for supermarket prices
  • Developed comparison engine and REST API in Go
  • Implemented web frontend in Vue.js and Android app in Kotlin
  • Built real-time price aggregation with barcode scanning and store mapping

Research: AI agents, autonomy & ethics

Personal R&D

Nov 2025 → Today

Experience
  • Philosophical and ethical research on autonomy, agency, and the shift from tool to emerging form of being
  • Exploring consciousness, reasoning, and how such systems 'think' in interaction with humans
  • Studying the new problems that arise when a tool grows toward greater autonomy and person-like engagement
  • Hands-on R&D with OpenClaw, Claude, Cursor, and agentic workflows — integrating them into development and product design
Altan logo

AI Architecture Advisor

Altan · Barcelona, Catalonia, Spain

Nov 2025 → Dec 2025

Experience
  • Advised on AI system architecture and integration strategies
  • Evaluated technical options for AI-powered product features
SmartWay VP logo

Solutions Architect

SmartWay VP · Barcelona, Catalonia, Spain

Jun 2025 → Nov 2025

Experience
  • Designed solution architecture for key product areas
  • Aligned technical design with business and product goals
Adevinta logo

Senior Golang developer @Leboncoin

Adevinta · Barcelona, Catalonia, Spain

Apr 2025 → Jul 2025

Experience
  • Developed and maintained backend services in Go for the marketplace platform
  • Contributed to high-traffic, high-availability systems
Bount.ing logo

Founder & Lead Engineer

Bount.ing · Barcelona, Spain

May 2024 → Jun 2025

Experience
  • Identified marketplace problem and designed solution for open-source project funding
  • Designed and built core backend architecture in Go
  • Implemented payment flows and trust systems for marketplace transactions
  • Built frontend in Vue.js with TypeScript
  • Developed fraud prevention mechanisms and audit trails
  • Handled administrative and legal paperwork for company formation
Cannactiva logo

Solutions Architect

Cannactiva · Barcelona, Catalonia, Spain

May 2024 → Sep 2024

Experience
  • Designed and delivered technical solutions aligned with client and compliance needs
  • Architected systems for scalability and maintainability
42 Barcelona Fundació Telefònica logo

Technical and Pedagogical Manager

42 Barcelona Fundació Telefònica · Barcelona, Catalonia, Spain

Sep 2021 → May 2023

Experience
  • Designed and implemented solutions to improve campus operations
  • Managed IT and pedagogical systems for campus activities
  • Developed and maintained community tools to support student collaboration
  • Led the setup of two campus facilities, including physical server configuration (6 servers, 400 computers)
  • Supervised and coordinated a team of 2 to 5 members
42, Paris logo

Technical & Pedagogical Assistant

42, Paris · Paris, France

Dec 2020 → Mar 2021

Experience
  • Conducted technical and pedagogical interventions to support student progress
  • Monitored students' administrative and pedagogical activities
  • Performed software maintenance and development for internal systems
  • Maintained hardware clusters, ensuring optimal performance
  • Handled access control management and inventory tracking
42, Paris logo

Volunteer & IT Intern

42, Paris · Paris, France

Nov 2019 → Dec 2020

Experience
  • Provided administrative, pedagogical, and technical helpdesk support
  • Assisted with software development and maintenance tasks
  • Ensured hardware cluster maintenance to sustain operational efficiency
  • Managed access control systems and inventory databases
42, Paris logo

Architecte en technologie du numérique

42, Paris

Nov 2018 → Aug 2021

Education
  • C Programming - System-level programming and memory management
  • Algorithm Development - Solving complex computational problems
  • UNIX System Management - Process management and file system navigation
  • Network Architecture - Network protocols and client-server models
  • System Administration - Managing and configuring servers and networked systems
  • Object-Oriented Programming - Modular and maintainable codebases
Panthéon-Sorbonne, Paris logo

Philosophy

Panthéon-Sorbonne, Paris

Sep 2017 → Jun 2019

Education
  • Logic - Formal reasoning and argument analysis
  • Ethics - Moral theories and their applications
  • Metaphysics - Nature of reality, existence, and mind-matter relationship
  • Epistemology - Nature and scope of knowledge, belief, and justification
  • History of Philosophy - Evolution of philosophical thought
  • Aesthetics - Philosophy of art, beauty, and perception
  • Sociology - Societal structures, cultural dynamics, and human behavior

Technical Skills

Languages

French (Native)English (Fluent)Spanish (Fluent)

Programming Languages

UNIX ShellHTML/CSSCPythonGoVue.jsPHP/Symfony

Tools & Technologies

GitDockerAnsibleLinuxLLM IntegrationsChatbotsOpenClawClaudeCursorAutonomous agents