Mobile apps with React Native + Expo
Development for iOS and Android with OTA updates, EAS Build and push notifications.
Software Factory
Custom development on your own infra
We build and maintain the applications running on your servers: internal panels, integrations, APIs and automations. The same team that knows your infrastructure writes the software that uses it.
Modern web with Next.js
SSR/ISR, first-rate performance, technical SEO and consistent DX.
Complete backends
Node.js/NestJS or Laravel, PostgreSQL/MySQL, Redis, messaging, queues and observability.
Backoffice ready to run
Admin panels, roles and permissions, auditing and accelerated CRUD generation.
Apps from knowledge bases
We build applications and assistants on top of your KB (RAG) to speed up flows and automate processes.
Finished product
Fixed scope and price with closed requirements.
Hour packages
Blocks of hours for agile, flexible evolution.
Dedicated team
Specialised talent under your management and our technical supervision.
Agile methodology
Short sprints, continuous refinement and prioritisation by impact. Fortnightly deliveries with working demos, CI/CD, automated testing and strict code review.
How we work
- Engagement
- Project or dedicated team
- Stack
- Web, APIs and automation
- Infra
- Our own VPS and cloud servers
- Contact
- info@sisargentina.com
Frequently asked questions
What technologies do you use for web and mobile?
For web: React and Next.js (SSR/ISR). For mobile: React Native with Expo (EAS, OTA, Push).
How do you build the backend and the backoffice?
Backends in Node.js/NestJS or Laravel with PostgreSQL/MySQL, Redis and queues. Backoffice with roles, permissions and auditing; accelerated generation of CRUDs and reports.
Can you generate applications from my knowledge base?
Yes. We implement RAG-based solutions to build assistants, intelligent forms and web modules operating on your KB, reducing operational workload.
How do you guarantee quality and delivery times?
Fortnightly sprints, CI/CD, staging environments, feature flags and automated tests (unit, integration and E2E). Demos every iteration and agreed SLAs.
Can I follow progress live?
Yes. Access to boards, PR previews and test environments to validate features before release.
How do you protect my data?
Robust authentication, granular permissions, encryption in transit and at rest, auditing and information-security practices.
How long does a typical project take?
It depends on scope. After an initial meeting we deliver an estimate and a milestone plan with dates and deliverables.
What engagement options do you offer?
Fixed-price project, hour packages or a dedicated team. We choose together the model that best fits the goal.
What support do you provide after go-live?
Evolutionary maintenance, monitoring, continuous improvement and corrective support according to SLA.
Do you integrate existing systems?
Yes: ERP, CRM, payment gateways, corporate identity (SSO), messaging and analytics.
Do you deploy on my servers or in the cloud?
Both. On-prem or cloud. Docker containers, orchestration and CI/CD pipelines for safe, repeatable deliveries.
Tell us about the project
Write to us with whatever scope you have, even a one-paragraph idea. We come back with a proposal and an estimate.