The Tech OS Studio

Case studies

Real applications: product development, audits, modernization and AI integration.

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Projects and technical contributions

These experiences cover engagements by Loïc Feuga and studio products. The role and contributions describe the scope of the work; they do not imply that every product was built entirely by Tech OS.

View Loïc Feuga’s professional background

Wildfire monitoring platform & real-time video streams

Intervention on a wildfire visualization and management application connected to multiple camera streams and an AI-based alert analysis module.

Product expertise & performance optimization mission

  • Full frontend performance audit with drastic loading time reduction
  • Progressive migration to modern Angular (standalone, signals, new syntax)
  • Design system refactor into a publishable and buildable library
  • Complete rewrite of the application store to improve readability and performance
  • Implementation of unit and E2E testing to secure future iterations
  • Creation of a second application from scratch dedicated to field intervention support

AI-driven conversational social application

End-to-end design and development of an experimental social product powered by an LLM, evolving from a POC to an MVP and scalable multi-platform architecture.

Product design & full-stack development

  • Design of a POC based on intelligent conversational matching
  • Full-stack development of a real-time application (Angular frontend, NestJS backend, MongoDB)
  • Integration of an AI engine for profile analysis and user assistance
  • Creation of an admin interface for analytics, moderation and product KPIs
  • Real-time WebSocket communication between users and the AI engine
  • Mobile deployment on iOS & Android via hybrid WebApp and CI/CD pipeline
  • Mobile-first UI/UX design and automated acquisition marketing experiments

Critical software for medical equipment

Intervention on multiple Angular applications used to control biological analysis machines in an international hospital environment.

Training & technical consulting

  • Technical audit of existing Angular applications
  • Progressive upgrade with strong stability constraints
  • Implementation of E2E tests to secure deliveries
  • Clarification of coding conventions and reduction of technical debt
  • Structuring of two frontend applications related to software control

Angular team enablement & technical coaching

Design and delivery of technical sessions to help teams structure modern frontend projects.

Technical consulting mission

  • Design of a production-oriented training program
  • Delivery of intensive technical bootcamps in small groups
  • Focused sessions on architecture, performance and state management
  • Sharing real-world production insights

High-volume document management platform

Contribution to a business platform connected to multiple internal APIs for document and customer data management.

Product development & consulting

  • Development of an Angular application connected to multiple APIs
  • Creation of an aggregator backend to simplify data flows
  • Progressive refactoring to improve maintainability
  • Implementation of testing practices and technical conventions
  • Work on a reference application related to currencies and exchange rates

Business AI configuration platform

Development of an Angular interface used to configure an artificial intelligence engine in an international context.

International product mission

  • Creation of an Angular interface dedicated to AI configuration tools
  • Continuous improvement of unit test coverage
  • Implementation of an i18n translation module
  • Integration of an SSO authentication system
  • Collaboration with offshore teams

Industrial decision-support tool

Intervention on an Angular application designed to assist industrial teams in decision making.

Product development & frontend architecture

  • Development of an Angular interface connected to a Java Spring backend
  • Creation of automated Excel and PDF reporting
  • Technical debt analysis and improvement recommendations
  • Bug management in close collaboration with business teams
  • Participation in key technical decisions

Large-scale consumer applications

Participation in the design and evolution of multiple digital applications used by a large public audience.

Technical audit & improvement mission

  • Development of Angular applications for customer journeys
  • Contribution to a component library and design system
  • Setup of multi-branch CI/CD pipelines
  • Challenging UI/UX designs to match real technical constraints
  • Supporting teams on Angular best practices

Agritech business platform

Development of an Angular application and Java backend for field data management and business visualizations.

Full-stack product mission

  • Creation of Angular interfaces adapted to specific business constraints
  • Spring Boot backend development
  • Integration of data visualizations using ChartJS
  • Participation in AWS deployments and Docker structuring
  • Work on internationalization and product data management