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Stan Leon
Portrait of Stan Leon

Stan Leon

Independent software engineer & product builder · France

Your application,
from first idea to production.

I design and build applications for entrepreneurs and small teams: a business tool to create, a product to launch or an application to improve. From interface and data to integrations and deployment, you have one technical point of contact.

Let’s discuss your projectSee my work →

What I can build for you

All services →

Launch your first version

You have identified a need and want to turn it into an application. I help define the essential scope, then design and build it through to production.

  • Web apps
  • SaaS
  • iOS
  • macOS

Build a tool for your business

Your work spans spreadsheets, emails and disconnected tools. I build client portals, dashboards and applications around the tasks your team needs to accomplish.

  • Client portals
  • Dashboards

Connect your services

You need your application to work with the tools you already use. I integrate payments, authentication and third-party services, and automate recurring data transfers.

  • API
  • OAuth
  • Webhooks
  • Payments

Improve an existing application

Your product is already there. I can add a feature, improve an interface or resolve a technical issue, on a defined scope or alongside your team.

  • Interfaces
  • Backend
  • Deployment

Selected work

11 public products

I design, build and run my own products. These applications show the interfaces, workflows and integrations I can also build for your project.

How we work together

  1. 01

    Understand your needs

    We start with the problem, the people who will use the application and what already exists.

  2. 02

    Define the scope

    We agree on essential workflows, constraints and priorities, so you know what the work includes.

  3. 03

    Build and review

    I design and develop the application, with checkpoints to review progress and validate decisions together.

  4. 04

    Launch and evolve

    I handle deployment. Depending on your needs, we can then plan maintenance and further improvements.

About

One person, from design to production.

I’m Stan Leon, an independent developer based in France. For 15 years, I’ve worked across software development, interface design and production infrastructure. Building and running my own applications means taking responsibility for the scope, workflows, development and launch. I bring that experience to your project, whether you need a complete application or help with a specific part.

  • 15 years of experience

    Across software development, interface design and production operations.

  • One technical point of contact

    For the interface, data, integrations and deployment.

  • Products I run myself

    I design, build and operate the products shown here.

Contact

What would you like to build next?

Tell me about the problem you want to solve, where the project stands and any deadline you have in mind. I reply by email, usually within two working days. You can also write to [email protected].

Target date

What you want to achieve, where things stand, anything that matters to you.

Experiments

All experiments →

2 experiments

Mini apps, prototypes and thoughts.

Small things I build and write to learn.

Browse the experiments