Internal application
It replaces the spreadsheets and emails your team relies on to organise itself, and orders its work by priority.
Request a proposalServices
Custom software
I build custom web applications, process automation and artificial intelligence for businesses whose operations no longer fit into generic tools, with itemised, transparent pricing from day one.
Published prices · Progress every week · AI running in production
Definition
What custom software is
Custom software is a system designed and built specifically around the needs, processes and objectives of your business.
It adapts to your processes
Each module is designed around the way you actually operate, so spreadsheets and manual processes are no longer needed. The system applies your business rules exactly as you work with them.
On this pageCommon custom software projects
It belongs to you
The code, the data and the documentation are yours. There are no per-user licences, so bringing someone onto your team does not add another fee, and any senior team can take the project forward.
On this pageWho owns the code and the data?
It connects with your systems
It integrates with your invoicing, your online shop or your CRM and with your historical data, so that your team works in a single environment.
On this pageProcess automation
It evolves with the business
Its architecture accommodates new modules, more users and a greater workload. Each extension arrives in phases and is built on what already works, with planned deployments so that your team can carry on working as usual.
On this pageAfter launch
Method
How I develop your custom software
Your project is developed in weekly sprints, each with a fixed objective and price. That way you see it move forward every week through deliveries you can test, and you keep control of the work at all times.
The process
- 01
Before we start
We define the scope
I analyse your idea in depth and propose a first sprint with a fixed objective and price. It is entirely free and places you under no obligation.
DeliverableThe quote for the first sprint, in writing and itemised.
- 02
Sprint by sprint
Development in sprints
In each sprint I design and build a complete part of the system, and the project runs through as many sprints as it needs.
DeliverableAt the close of each sprint, a working part of the system that you can test.
- 03
Once the scope is covered
Launch
When the system covers the agreed scope, I put it into production within the final sprint, and you choose how to continue according to what the business needs.
DeliverableThe system in production, with its complete documentation.
After launch
New phases
To extend the system with new modules, with the same method and the same prices.
€1,190 per sprint
Hour bundles
For one-off improvements and smaller jobs that do not justify a sprint.
From €215 · paid in advance · valid for 12 months
See the bundlesMaintenance
So that the day-to-day operation of your system is covered.
Tailored plan · no minimum term
See the planProjects
Common custom software projects
Every growing business accumulates manual work and scattered data. These are the projects I most often build to solve it.
Process automation
It moves information from one tool to another at any hour of the day and keeps a record of every operation.
Request a proposalAI assistant for internal documentation
It answers your team’s questions from your own documentation and cites the source document.
Request a proposalAI customer service assistant
It serves your customers on your website and on WhatsApp, including outside business hours, with the real information of your business.
Request a proposalIf you have a process that your current tools no longer cover, I will study it with no obligation.
Tell me about your projectTechnology stack
Technology and infrastructure built to last
A system designed to last needs a solid foundation. I build on mature, widely adopted technology with constant security updates, so that your application remains easy to maintain and to extend as the years go by.
The stack I use most often, in an internal management application with an AI assistant. On every project, the technology is chosen after analysing its requirements.
Core
PHP and Laravel, my speciality for more than a decade
A mature ecosystem, with constant updates and security patches, allows me to deliver quickly and with guarantees. And because it is such a widely used technology, your project is not tied to a single developer. Any senior team could take it forward.
Artificial intelligence
Artificial intelligence applied to the daily running of your business
I integrate AI models through a single gateway such as OpenRouter, which makes it possible to switch models without rebuilding the integration. I can also use the APIs of providers such as Anthropic or OpenAI directly if the project requires it.
Infrastructure
Dedicated infrastructure tailored to each project
I usually deploy on Hetzner servers with dedicated resources in the European Union. If your organisation requires it, I can also work with AWS, Google Cloud, Azure, your own servers or any other environment you are familiar with.
Questions
Frequently asked questions
Here I answer the questions that usually remain before we start, from ownership of the code and hosting to confidentiality and working with agencies.
Who owns the code and the data?
You do, always, including when the system is hosted on my servers. You receive the complete code with its documentation and, if you wish, the repository in your name. Your data is used only to make the system work, and if the project includes artificial intelligence, I work exclusively with providers that do not use it to train their models.
Back to the definitionWhere is the system hosted, and what does it cost to maintain?
That depends on where you would rather have it. If I host it, the servers are contracted in my name and hosting is included in a tailored maintenance plan, sized for your system and itemised in the development proposal. If it is deployed on your own servers or platform, they remain in your name and you have no monthly cost with me, although you can still take out that plan. No plan has a minimum term, and if you leave, I hand over the system with its documentation so that you can deploy it wherever you choose.
Back to the definitionWhat if the project needs more sprints than planned?
Each sprint has its own fixed price and is approved before it starts, so you never pay for work you have not accepted. If the scope grows, I set out the additional sprints and their cost in writing, and you decide whether to continue. In Labs you have four examples of custom software with their weeks of work and their price.
Back to the definitionDo you sign confidentiality and data processing agreements?
Yes. I sign whatever confidentiality agreements you need, including before the initial proposal if preparing it requires sharing sensitive information. When the system handles personal data, I also sign the data processing agreement that the GDPR requires.
Back to the definitionDo you only work with that stack?
No. The stack you see is the one I use most often, but I work with other technologies and environments when the project calls for it. The choice depends on what you want to build, and I set out the reasons for it in the proposal for the first sprint.
Back to the definitionDo you work with agencies and consultancies?
Yes. I develop under white label for agencies that do not build custom software and for international consultancies, in Spanish or in English. Write to me and we can discuss it.
Back to the definitionWhat do I need to provide to get started?
It is enough to tell me what you want to solve and how your team works today. With that I prepare the proposal for the first sprint, and during development I only need one point of contact to validate each delivery. If this is your first commission, in Labs I gather the eleven questions for the first meeting.
Back to the definitionGuarantees
One standard for every project
Neither the size nor the length of the project changes these terms. They apply the same to a five-page website and to a system built over several months.
Every price, published
There is no ‘contact us for pricing’ here. Every service publishes its price with the breakdown, and where a fixed price does not apply, I publish how it is calculated.
Fixed-price quotes
Every requirement is analysed in detail before quoting, which lets me give you a closed price with no surprises along the way.
No fine print
I bet on transparency in both pricing and scope. Every quote states what it includes and what it leaves out before you sign anything.
One point of contact
Whoever quotes your project is the one who designs it, builds it and answers once it is live, with no account managers in between.
Let’s start shaping your project
Tell me what you have in mind or what you need built, and I’ll reply within 48 hours with a detailed assessment and a realistic scope.
or write to me:info@julio.works