mission critical
software

Back-end

For backends we choose the language and framework that make sense for the problem at hand. We use Ruby on Rails for efficient web applications, Python for data and automation, and with Node.js and NestJS we build structured APIs.

For connections between front end and back end we use GraphQL where it helps. We maintain existing PHP codebases and develop them further. For parts where performance really matters, we look at Rust.

Front-end

For user interfaces we work with React, Vue.js, and TypeScript. With React and Vue we build interactive, data-driven screens. TypeScript catches errors early and makes collaboration in larger codebases clearer.

For each project we choose the framework that fits the existing code, the team, and the scale of the application.

Database

For relational data, PostgreSQL is the foundation we fall back on: reliable, open source, and suitable for small and large applications. When search becomes a core feature, we connect PostgreSQL to Elasticsearch for fast full-text search, filtering, and analysis.

Storage and search each get their own place, aligned with the data model and how the system is used.

Infra

We usually host on AWS. For organizations that prefer not to depend on a non-European provider, we often choose France-based Scaleway.

We always define the infrastructure as code, using Terraform or AWS CDK. This keeps the environment reproducible and transferable. Docker provides consistent environments from development through production, while Kubernetes automates scaling and management where needed. Already working with another hosting partner? We can work with them too.

DevOps

DevOps connects development and operations in one approach. Someone who understands both the application and the infrastructure makes more targeted choices around deployments and automation. Docker, Kubernetes, GitLab, and Review Apps are part of that.