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Custom applications and software

The tool your business needs does not always exist. We build it.

We turn processes, ideas and complex needs into useful, secure and scalable digital applications and systems ready to connect with the real business.

Tell us about your projectExplore the approach
CustomThe product follows the process and objective.
AgileIterative delivery and visible progress.
APIConnections to existing systems and data.
UXClear interfaces that support adoption.

Technology for each need

When the process is distinctive, the software should be as well.

We do not start from a closed feature list. We understand users, rules, data, integrations and objectives to design a proportionate solution. It may be a web or mobile application, an operational platform, an internal tool or a system automating work across technologies.

Product decision

Before estimating software, we define the problem, the MVP and its future operation.

Custom development makes sense when control, differentiation, integrations or planned evolution provide more value than adapting a standard tool. The decision starts with the process and business outcome, not the technology.

01

Internal operations tool

Workflows, rules, approvals and data brought together to reduce manual tasks and give the team traceability.

02

Customer or partner portal

Users, roles, private areas, documents and services connected to the company’s operations.

03

Digital product or MVP

A contained first version to validate value, learn from real users and decide how the product should evolve.

04

Automation platform

Systems, events, tasks and alerts orchestrated with error control, monitoring and room to grow.

What we define before estimating and building

  • Business problem and measurable outcome
  • Users, roles, permissions and journeys
  • Critical rules, data and source of truth
  • Integrations, dependencies and constraints
  • MVP scope, adoption and change management
  • Security, maintenance, ownership and total cost

If a standard solution meets the need and can be integrated without compromising operations, it is usually the better choice. We build custom software when there is a verifiable business reason to do so.

When to build custom

When adapting the business to standard software creates more limits than advantages.

Custom development creates value when the business has its own process, a complex integration or an opportunity requiring a specific solution.

01

Manual or fragmented processes

Operations depend on sheets, email and repetitive tasks that do not share information.

02

Standard software does not fit

Tool constraints force the team to work around the system instead of supporting it.

03

Disconnected systems

ERP, ecommerce, CRM, marketplaces, logistics or databases need to exchange information.

04

An idea must become a product

An application must be defined, designed and built for real users and growth.

What we develop

From concept to an integrated, maintainable solution.

We combine product strategy, experience, engineering and integration to match project scope.

01

Product definition

We turn the need into a buildable system.

  • Objectives, users and processes
  • Requirements and business rules
  • Functional architecture
  • Roadmap and priorities
02

UX and interface design

We design for understanding, use and adoption.

  • Flows and information architecture
  • Wireframes and prototypes
  • Responsive design
  • Component system
03

Architecture and development

We choose a proportionate technical foundation.

  • Frontend and backend
  • PHP, Laravel and CodeIgniter
  • JavaScript, React, Angular and Node
  • Python, Java, SQL, MySQL and MariaDB
04

Integration and automation

We connect the product to the existing ecosystem.

  • APIs and external services
  • ERP, CRM and ecommerce
  • Data, authentication and permissions
  • Automated processes and alerts

Agile development

Decide early, validate in stages and evolve through real use.

  1. 01

    Discover

    We understand the business, users, processes, systems, data and constraints.

  2. 02

    Design

    We define experience, architecture, initial scope and acceptance criteria.

  3. 03

    Build and integrate

    We develop iteratively, show progress and validate each part.

  4. 04

    Launch and evolve

    We test, deploy, support adoption and maintain the solution.

Case studies

Solutions built for real needs.

We have retained the fifteen examples published on the previous page as a sample of projects developed for very different clients and sectors.

Client references

Our clients describe what it is like to work with Sitelicon.

Their original words, faithfully reproduced together with the people and organisations behind each experience.

Hilda Larrazabal12 opiniones · 4 fotos
★★★★★5/5Hace 4 mesesGoogle
«Recomiendo esta empresa sin dudarlo a cualquiera que busque servicios web de alta calidad. ¡Definitivamente continuaré trabajando con ellos en el futuro!»
Gloria AlcaideLocal Guide · 17 opiniones · 11 fotos
★★★★★5/5Hace un añoGoogle
«Recibí una ayuda de la Unión Europea para trabajos digitales. Tengo una web increíble con mi propia escuela Online. Muy buen trabajo, muy buen equipo, atención directa, rápida y eficaz. Encantada con sitelicon, tanto que voy a continuar con el kit digital. GRACIAS A TODO EL EQUIPO y especialmente a Carlos.»
María José Rodríguez G.Local Guide · 14 opiniones · 25 fotos
★★★★★5/5Hace 2 añosGoogle
«Tienen toda la vida en e-commerce, probablemente uno de los equipos mas confiables y más experimentados en el mundo de marketplaces, en especial han demostrado conocer muy bien sobre Amazon con el cual han ayudado a la empresa en la que trabajaba. Recomiendo al equipo de Sitelicon a ojos cerrados.»
Eugenio de QuesadaPresidente de Grupo Nexo
«No es fácil encontrar un proveedor fiable para crear ‘ex novo’ Periódicos en la Red. El Grupo NEXO apostó por desarrollar su propio modelo de Diarios digitales de Información Económica Sectorial: Nexotur.com, NexoHotel.com, NexoBus.com, NexoTrans.com, NexoLog.com y Conexo.net, junto a los nuevos NexoTime.org, GoldTime.org y AltaRelojeria.org y DiamantesOro.org. Durante más de un lustro hemos trabajado codo con codo con Sitelicon, más allá de la tecnología, desde una extraordinaria eficacia, y notable empatía. Estamos orgullosos y agradecidos de haber compartido el talento (además de mucho trabajo duro y concienzudo) de este excelente proveedor, que es ya artífice y cómplice de las Publicaciones digitales del Grupo NEXO. Sitelicon es siempre una apuesta segura para nuestros nuevos proyectos»

Why Sitelicon

For 21 years we have turned business needs into technology.

Our team combines consulting, UX, frontend and backend development, integrations, cloud, data and operations. We can design the solution and manage what it needs to work over time.

  • Multidisciplinary product, design and development team
  • Experience across applications, ecommerce, integrations and systems
  • Architecture designed for security, performance and evolution
  • Support and maintenance after launch

Frequently asked questions

Scope, technology and evolution.

01What type of applications do you build?

Web and mobile applications, operational platforms, internal tools, portals, automation and systems connected to other services.

02How do you choose the technology?

We decide from users, requirements, integrations, security, scale, maintenance and the organisation’s existing technology.

03Do you use agile methods?

Yes. We organise development into stages and iterations to show progress, validate decisions and reduce risk.

04Can you integrate the application with our systems?

Yes. Integrations using APIs, databases, queues or scheduled processes are a normal part of our work.

05Do you provide support after launch?

Yes. We can cover corrective, preventive and evolutionary maintenance, as well as infrastructure, monitoring and new releases.

Custom software

Shall we talk about the tool your business needs?

Tell us which process you want to improve, who will use the solution, which systems it must connect and what outcome you expect. We will help turn it into a viable scope.

Send an enquiry

Let’s start with the context.

We only ask for the information needed to understand and route your enquiry correctly.

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