Web applications
SaaS platforms, customer portals and internal tools built with React and Next.js on typed Node or Python back ends. Fast, accessible and ready to scale.
Software studio · Web, mobile & AI
Royalines is a senior engineering team that designs, ships and runs production software: modern web platforms, native-quality mobile apps and AI features that actually work in production, from LLM integrations and chatbots to autonomous agents and automation.
Services
One team covers product thinking, design, engineering and operations. Pick a single capability or let us own the whole roadmap.
SaaS platforms, customer portals and internal tools built with React and Next.js on typed Node or Python back ends. Fast, accessible and ready to scale.
iOS and Android apps with React Native, Expo or Flutter, plus native Swift and Kotlin where it counts. App Store release, analytics and over-the-air updates included.
Assistants grounded in your data with retrieval (RAG), function calling and evaluation suites. Built on Claude, OpenAI or open models, deployed inside your product.
Multi-step agents that read, decide and act across your APIs: support triage, document processing, back-office workflows. Observability and human-in-the-loop by default.
Data models, ETL pipelines, vector search and classic machine learning. We turn messy data into APIs, dashboards and features your AI can rely on.
AWS, Railway and Vercel infrastructure as code, CI/CD pipelines, monitoring and cost control. Secure by design, boring to operate.
How we work
A short workshop to understand users, constraints and where AI genuinely adds value. You get a scoped plan and an honest estimate.
A clickable prototype or working AI proof of concept within two to three weeks, tested against real data before we commit to a build.
Weekly releases with automated tests, code review and a shared board. You see progress in a live environment, not in slide decks.
Monitoring, evaluations and a maintenance plan from day one. We stay on as your product team or hand over clean, documented code.
About Royalines
Royalines started as a software design and development company and has grown into an AI-first engineering partner. We keep the team small and senior, so the people you meet in the first call are the people who write the code.
Typed code, tests, code review and infrastructure as code on every project, whether it ships AI or not.
We challenge requirements, measure outcomes and say no to features that will not move your metrics.
Grounded answers, evaluation suites for every prompt change, guardrails for agents that touch real systems, and your data never used for training.
Fluent English, European time zone and one point of contact. Weekly demos, written decisions, no surprises.
Contact
Share a few lines about your product or AI idea. We reply within one business day with next steps and, if it fits, a proposal for a discovery call.