Let's build together
quality applications cçucç

Qraft is a team of technical experts who can help you build your web, mobile, API or infrastructure application.

Our developers, with over 10 years' experience, focus on the quality and performance of your service, over the long term.

Made with trust, build to last sticker
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Our loyal service

Qraft is primarily involved in developing your application from scratch, but can also build and technically supervise your team of developers.

We develop high-performance, resilient backends to serve REST or GraphQL APIs. We rely on robust and proven technologies such as Rails or Node.js to serve sometimes more than 10,000 req/s.
For specific needs, we can also offer you microservices or Elasticsearch clusters, but you can always count on us to choose the simplest and most efficient solution!

Our backends contain all the business logic of our applications. They are systematically covered by tests (unit and end-to-end) and monitored (errors and performance).

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Let's stand the test of time together.

Our aim is to guarantee you an application that not only works at a given moment, but can be improved and extended with the same agility as your product evolves. We take pride in the code we deliver, today and in 3 years' time.

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Our added value

Expertise

With over 10 years' experience, we know the pitfalls of a digital project, the fads, the reliable shortcuts and the ones to avoid. Sharing our experience with you is what makes us tick.

Honesty

Zero bullshit. We advocate transparency, between Qrafters and with our customers, so that we all move in the same direction. We cultivate a written policy so that everyone can follow the project's progress in the clear light of day.

Robustness

We implement prevention methods (code reviews, unit tests, continuous deployment, reversible migrations, monitoring...) and rapid remediation in the event of a problem.

Performance

We provide the simplest solution to a given problem, using the fastest, most reliable technologies, without unnecessary gimmicks. Details are important: speed and quality are closely linked.

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Our weapons of choice

Are you interested in coffee and gems? We're experts.

Our favorite arsenal

We adapt to your technical stack, but we do have a few preferences, which represent our values: performance, quality and speed.

Backend

Ruby on rails logo

Rails

Sidekiq logo

Sidekiq

Rubocop logo

Rubocop

RSpec logo

RSpec

Database

PosgreSQL logo

Posgres

Redis logo

Redis

Frontend

React logo

React

Material UI logo

Material UI

Tailwind CSS logo

Tailwind CSS

Next.js logo

Next.js

Prettier logo

Prettier

ESLint logo

ESLint

Typescript logo

Typescript

Hosting & Continuous Integration

Heroku logo

Heroku

Vercel logo

Vercel

Github logo

Github Actions

Mobile apps

React Native logo

React Native

Expo logo

Expo

PS: Some companies using Rails as their core technology: Shopify, Airbnb, GitHub, Twitch, Coinbase, Doctolib, Swile...

In the ropes

We're also happy to work with these technologies, which are so popular with our customers.

Backend

Node.js logo

Node.js

NestJS logo

NestJS

Frontend

GraphQL logo

GraphQL

Infrastructure

AWS logo

AWS

Serverless logo

Serverless

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Devs on the front, like on the back!

Alexis and Nicolas have around ten years' experience in development and met at a fintech startup incubated by Facebook. After working together on several projects, they decided to join forces around shared values in 2020: Qraft was born.

Qraft was built around the idea that a team of talented and passionate developers should be made up of a variety of profiles from different backgrounds. Diversity is a strength: we recruit high-potential men and women who are retraining to become developers through recognized code bootcamps like Le Wagon, as well as engineers from specialized schools like Epitech.

Join us!
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Let's not forget the tests...

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Our latest victories

Screenshot of Billi application

SaaS application designed to simplify the management of freelance firms and interim management companies: automation of administrative tasks such as generating contracts, invoices, expense claims and activity reports.

  • Stack: Rails API, Postgres, Redis, Next.js, Tailwind CSS, Scalingo, AWS
  • Integrations: YouSign, Postmark
Screenshot of the C'Evidentia e-commerce website and application

Online eyewear fitting and sales application: virtual fitting, measurements, payment of remaining costs, stock management, electronic signature.

  • Stack: Rails API (REST), Postgres, Redis, Next.js, MUI, Heroku, AWS
  • Integrations : Docusign, ActiveCampaign, Stripe, Postmark
Screenshot of the easiware customer care solution

Multi-channel conversational tool to manage customer support. The easiware solution enables customers to interact with their consumers via chat, email and WhatsApp, and customer advisors to organize the entire lifecycle of a request.

  • Stack: Node.js (REST + WebSockets), NestJS, Postgres, Redis, Next.js, MUI, Heroku, AWS
  • Integrations : Auth0, Postmark
Screenshot of the Embarq application

Portage salarial management application for administrators (B2B) and ported employees (B2C). Contract editing, invoice generation, electronic signature, activity reports, expense reports...

  • Stack: Rails API, Postgres, Redis, GraphQL, Next.js, MUI, Heroku, AWS
  • Integrations : Docusign, Upflow, Sendgrid
Screenshot of the Bruno fintech app

Intelligent micro-savings based on an analysis of your spending using artificial intelligence. Bruno automatically sets aside money in savings products, but never puts you in the red.

  • Stack: Rails API (REST), Postgres, Redis, Flask, NumPy, Pandas, React, React Native, Expo, Heroku, AWS
  • Integrations : Budget Insight, GoCardless, Postmark