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Custom development

Custom development: build the tool you need for your growth.

Numinam builds custom internal tools, business applications, dashboards and integrations. We start with what’s holding your team back and focus on the work that needs to move forward.

Tell me what’s getting in the way

custom development for SMEs · Belgium and France

Your logo here

Custom development makes teams more autonomous.

Nallian
Content management interface developed for the Nallian team

Nallian · site management

61 → 95 Lighthouse score

A site and publishing interface adapted to the marketing team.

A fast site and a team that publishes alone

  • Loads in less than a second on mobile and desktop
  • custom CMS offering the marketing team total editorial autonomy
  • Automated content migration from old Joomla, without broken links
Read the Nallian case study
Coddy
Coddy website, urban games platform
Coddy app game screen

Coddy · game creation tool

278 games created

Created by the team in its management tool, without technical intervention.

  • 250 000+ paying players
  • 25 000+ transactions
  • 5 languages
Discover the Coddy case
Sébastien Balieu, founder of Numinam, which develops custom tools and applications

Your business needs guide custom development.

Numinam is led by Sébastien Balieu, whose experience combines marketing, product and development. You can start from a concrete objective or blockage: it will be translated into a tool adapted to the work of your team.

  • You communicate directly with me

    You show what is blocking you to the person who develops your tool. We can specify the need and adjust the project based on your feedback.

  • A project that can be resumed

    I choose popular technologies and document how they work. Your team or another service provider can then take over the project.

  • A tool that belongs to you

    The code, accounts and access belong to you. You retain the freedom to choose who maintains and develops your tool.

See my journey

What custom development can unlock.

You waste time cross-referencing files, your software does not share information or an offer remains blocked due to lack of a tool. We start from this difficulty to define what needs to be developed.

Internal tools

Is your spreadsheet becoming difficult to follow with several people? I am creating a tool to find your files, follow their progress and know who modified what. Each person has access to information that concerns them.

Connecting your software

Is the same information scattered across several software programs? I link them so that your teams, your customers or your partners can find the data they need.

Dashboards

Do you need to assemble several files before presenting your results? I gather useful data into a dashboard to help you track your goals and explain your decisions.

New functions for your customers

A new offer requires a function that your application does not yet offer? I develop it in your existing product, in conjunction with your technical team.

Resumption of an existing development

Is your project at a standstill or its developer is no longer available? I examine what exists, I explain to you what can be kept and I quantify the work necessary to resume.

You validate the tool over the course of the project.

  1. We define what the tool must solve

    We describe what your team does today, with what tools and at what cost. We delimit what the tool must cover, and what it will not cover.

  2. You validate the first screens

    You see how the tool will work before it is developed. Together we check the steps, the information to display and the needs of your team.

  3. You receive usable functions

    I am developing the tool in stages. Each delivery allows you to try out a complete feature and verify that it meets the intended need.

  4. Your team tries it while it builds

    People who will use the tool test it on their own files. Their feedback makes it possible to correct difficulties before continuing development.

  5. We put the tool into service

    I prepare the recovery of existing data, access and backup. I train users and provide technical documentation.

  6. We adjust according to your uses

    After launch, we take stock of the needs that arise. You choose the developments to plan according to their usefulness and your budget.

Feedback from your team guides developments.

The return of accompanied customers.

Jean Verheyen
At Nallian we build solutions that are trusted by the world's leading airports, ground handlers and logistics companies. But our website no longer reflected that level of excellence. This redesign ensures our first impression matches the quality of what we actually deliver.

Jean Verheyen

CEO • Nallian

Stephane Draux
Numinam's contribution to the development of our App has been significant in its success with our B2C and B2B customers.

Stephane Draux

Founder • Spengo

Valérie Van Belle.
Numinam (One More Pixel) is doing a fantastic job for Euronet. They’ve started the mission in saving our web-site from a cyber-attack. We had lost a lot of information and they had to rebuild our web-site. They had to recover the data left on our former server… that was a huge mission and they did it in a very professional way. Currently, they do our website maintenance and are assuring the security and the integrity of our website. Numinam is proactive and very reactive when we have to face a problem. Moreover, we’ve started collaborating on our SEO… also a huge mission… We wanted to improve our web visibility and after 3 months, we’ve started seeing the positive results. Mission seems to be very promising.

Valérie Van Belle.

Managing director • Euronet

What budget for your custom tool?

The budget depends on the number of functions, the software to be linked and the data to be collected. We specify these needs and the validation steps before development.

Internal tool

€7,140

excl. VAT

Delivered in working days: 12 days

A tool to better track your work.

To follow your files, your schedule or the requests of your team in the same space, with access adapted to each person.

Included

Definition of needs, models, development, data collection, launch and training.

Let's talk about your tool

Business application

€16,660

excl. VAT

Delivered in several stages

Your teams share the same information.

To monitor an activity that involves several teams, link their software and have common dashboards.

Included

Definition of needs, models, staged development, software connection, dashboards and documentation.

Let's talk about your app

Platform

On quote

Calendar according to perimeter

An online service for your customers or partners.

To offer an online service with user accounts, data exchanges and capacity adapted to expected traffic.

Included

Design, development, connection of services, testing, monitoring of operation and transmission to your team.

Let's talk about your platform

One-off services. The recovery of existing data, hosting and user training are costed in the proposal.

Your questions about custom development.

Do I need specifications before contacting Numinam?
No. Bring a recent case and the steps your team struggles to complete. We define users, functions, data and acceptance tests before development. The application requirements guide helps prepare the first useful version.
How does Numinam protect our company data?
We identify the necessary data, the people authorized to consult it and the services which will receive it. I plan access and backups according to these needs. These choices are specified before launch.
When should you choose custom development over software?
First test configuration, integration or another SaaS with your actual cases. Custom work can fit a recurring business rule those options cannot handle reliably. Compare full operating costs, not licences against the build alone. The SaaS or internal tool guide explains the options.
What should we define before commissioning a marketplace?
Identify what buyers, sellers and administrators can do, how listings are approved and who handles payments, refunds and disputes. Define the first transaction to complete and test it with real users. Multi-seller payments and verification need assessment with the selected payment provider; a feature list alone cannot establish the scope or budget.
How much does a custom development cost at Numinam?
An internal tool covering a process costs €7,140 excluding VAT. A business application bringing together several processes costs €16,660 excluding VAT. A platform open to your customers is calculated after framing. For a complete web application, count €20,000 to €35,000 excluding VAT, depending on the functions selected.
Who owns the code developed by Numinam?
Yours. The deposit, hosting and accounts for the services used are opened in your name from the start of the project, and the technical documentation is given to you upon delivery. No license remains to be bought from me.
Can you take over a project started by someone else?
Yes, after reading the code and existing data. This reading says what can be kept, what needs to be rewritten, and what each option would cost. You then make an informed decision.
Who carries out maintenance after launch?
You choose. I can ensure corrections and developments, your team can take over with the documentation provided, or another service provider can take over. The technologies selected are widespread precisely to keep these three options open.
Do you work with our technical team?
Yes. I can add a function to your application following your team's methods, or build a separate tool that they can take over later.

What project are your tools preventing you from advancing?

Explain what you want to do and what is blocking you today. Numinam helps you determine if an existing tool is sufficient or if custom development is justified.

Sébastien Balieu

Customized development for SMEs · 25-minute discussion

See my journey