--- title: "Kyros | Custom software development" description: "Software development studio. We build web apps, AI integrations and cloud deployment." url: "https://kyros-software.com/en" locale: "en" site: "Kyros Software" --- # Kyros | Custom software development > Software development studio. We build web apps, AI integrations and cloud deployment. ## Services ### AI & automation We automate processes and integrate external services and AI, so your product does more with less. ### Web apps Custom SaaS platforms, ERPs and CRMs, including business software with tax and regulatory compliance. Multi-company, real-time and built to last. ### Deployment & maintenance Docker, CI/CD, monitoring and ongoing support. We deploy it and keep it running. ### Cybersecurity Security audits of web applications, APIs and infrastructure: we find vulnerabilities, prioritise them and help you fix them. ### Mobile apps iOS and Android apps that share their backend and data with the web, so everything stays in sync. ## Projects A sample of the kind of projects we build. ### KyrosCore — SaaS platform (Our product) Our flagship platform: a modular SaaS where each company turns applications on or off as it needs them and pays only for what it uses. It all runs on a single backend with web and mobile apps, so every feature reaches every device at once and adding a new app is just a matter of switching it on. Stack: Laravel, Vue, React Native, Multi-tenant, Monorepo ### Portal for a network of advisory firms — Corporate intranet The daily hub for an entire network of advisory and professional firms: internal comms, documents, training and management brought together in one portal. Stack: Laravel, Vue, Modular monolith, Multi-tenant ### ERP for a training center — Education ERP The system that runs a training center end to end: enrollment, academic records, billing and payments, all in one place and in real time. It takes the heaviest part, the finances, off your plate: SEPA remittances, electronic signing and automatic payment reminders, with multi-branch support. Stack: Laravel, Vue, MySQL, WebSockets, SEPA ### Multi-company sales CRM — Sales CRM A B2B sales CRM used by several companies at once, built so no lead ever slips through. It captures opportunities from web forms and an AI chatbot that runs 24/7, then routes each one automatically to the right rep by territory and workload, so every lead lands in the right hands instantly. Stack: Laravel, Vue, MySQL, Redis, Multi-tenant ### Invoicing & accounting platform — Invoicing SaaS The platform that invoices and keeps the books for several companies at once, with sales, purchases, inventory and banking all in one place. It's compliant out of the box with Spanish tax rules (VeriFactu, Facturae and SEPA direct debits) and handles the heavy lifting on its own, generating e-invoices and mass mailings in the background. Stack: FastAPI, Celery, Redis, MySQL, VeriFactu ### CRM for an energy broker — Energy brokerage The CRM that runs the whole business of an electricity and gas broker: from the moment a lead comes in to closing the supply sign-up or switch with the retailer and paying the partner their commission. It brings partners, end customers and retailers into a single flow, with automatic commission settlement and real-time notifications. Stack: Laravel, PHP, MySQL, Redis, WebSockets ### VAT reporting module — Tax automation A module we built for an invoicing application that automates real-time VAT reporting to Spain's tax office: it batches invoices, submits them within the legal deadline, and handles the ones the tax office rejects on its own. Stack: Laravel, PHP, AEAT, SII ### Corporate income tax module — Corporate tax Another tax module we built for an invoicing application: a step-by-step wizard that prepares a company's corporate income tax return (forms 200 and 202) and gets it ready for the tax office. It pulls the data straight from the accounting, auto-detects the applicable tax items and generates the official AEAT file. Stack: Laravel, PHP, AEAT, Form 200 ## About us We're a small, no-nonsense development studio. We build business software that holds up in production, and we measure what we do. - **Code that lasts** — Documented and code-reviewed. Any team can pick up the work. - **No surprises** — Clear estimates, phased delivery and direct communication. You always know where the project stands. - **Custom** (Our own code) — No templates - **Full-stack** (Web, mobile & infra) — One team - **CI/CD** (Continuous delivery) — Tests on every change - **1:1** (Direct contact) — Talk to the people coding ## FAQ ### What technologies do you use? We mostly work with Laravel and MySQL on the backend, Vue on the web frontend and React Native for mobile, all built on APIs and Docker containers. When it fits, also Python/FastAPI and real-time with WebSockets. We pick the stack based on what each project needs. ### Do you handle Spanish tax and regulatory compliance? Yes, it's one of our strengths. We have production software covering VeriFactu, SII, corporate income tax (forms 200 and 202), SEPA remittances and legal time tracking. If your project has to comply with the tax office or labor law, we know the terrain. ### How much does a project cost? It depends on the need and the scope; we work with standard industry rates. You get a clear estimate before we start, with no surprises. ### How long does delivery take? It depends on the project's complexity. We work in phases with partial deliveries, so you see progress early and always know where the project stands. ### Do you work remotely? Yes, we work fully remotely. We coordinate with your team over video calls and whatever tools you use, wherever you are. ### Do you sign an NDA? Yes. We sign a non-disclosure agreement whenever you need one. ## Contact Tell us what you need and we'll reply with a proposal and an estimate. No strings attached. - We work 100% remotely - We sign an NDA when you need one - Reply within 24-48 business hours - Email: [info@kyros-software.com](mailto:info@kyros-software.com) - Contact form: https://kyros-software.com/en#contacto - Location: Tarragona, Spain --- ## Other pages - [Privacy policy](https://kyros-software.com/en/privacy.md) - [Legal notice](https://kyros-software.com/en/legal.md) - [Cookie policy](https://kyros-software.com/en/cookies.md) ## Other languages - [Español](https://kyros-software.com/es.md)