Custom management software
Management systems, back offices and integrations built around how your business already works, so the team stops depending on spreadsheets and email threads.
Back officeIntegrationsUsers & permissionsReports
Engineering since 2014 · Córdoba, Argentina
Software that still works years later.
We build the systems growing companies run on every day: management software, web platforms and the automation that replaces spreadsheets and manual steps. Engineered for production, not for the demo.
Custom software · Process improvement · Web platforms · Domium
2014
Founded
AR · NL
From Córdoba to the Netherlands
4
Client systems built from scratch
Trusted by teams in construction, consulting, education, workplace safety and law
Our own product
Domium
A property management platform for real estate agencies, their owners and their tenants.
Domium
Real estate operations, clearer
Live and growing
Domium separates the public storefront from reserved operations. Agencies get a branded microsite and a public listing window; owners, tenants and providers each enter only the workspace that belongs to them. Contracts, payments, maintenance, documents and per-property accounting live in one place, on a single record per property that everyone works from.
- Public listing window and branded agency microsites
- Contracts, payments, receipts and automatic reminders
- Maintenance work orders with providers and photo evidence
- Owner and tenant portals with magic-link access
- Per-property accounting, cash flow and downloadable reports
- Publishing of listings to the agency's own Facebook Page and Instagram account, with more channels on the way
- Applied AI: tenant FAQ, contract drafts, maintenance triage, pricing hints
Visit domium.ar
React · TypeScript · FastAPI · Azure SQL · Container Apps · Bicep
Services
Everything between the idea and production
From the first conversation to the system running in production, with the person who builds it as your contact.
Process improvement & automation
We map how the work actually flows today, find the manual steps and the data typed twice, and replace them with simple automations, reports and alerts. AI only where it really saves time.
Process mappingAutomationAlertsApplied AI
Web platforms & portals
Catalogues, enrolment flows and customer portals with a back office your team can manage on its own. Fast, accessible and cheap to run.
Customer portalsCataloguesEnrolmentSEO
Hosting & ongoing support
We keep what we build running: hosting, backups, monitoring and small improvements with an agreed monthly scope. Or a clean handover to your own team.
HostingBackupsMonitoringSupport
Boring technology, used well
.NET & C# · Python & FastAPI · React & TypeScript · SQL Server & PostgreSQL · Azure · GitHub Actions
How we work
Short cycles, with everything in view
Scope, budget and quality stay visible from the first conversation until the system runs on its own.
01
Understand
We start with your process and your constraints, and let those pick the technology. You get a written scope, a budget range and a plan.
02
Design
Architecture, data model and interfaces agreed before the first line of code. Decisions are documented and reversible.
03
Build
Short iterations with something demonstrable at the end of each one. Tests and CI/CD are in place within the first week.
04
Operate
Monitoring, documentation and a clean handover. After that we keep running it, or your team takes over with everything it needs.
Track record
Systems built for companies
Since 2014 we have built systems from scratch for companies in Argentina. The most recent one is for a law firm. Much of how we build today comes from these projects.
Construction
Developments platform
A public catalogue for a construction company, with a back office for the sales team to publish developments, units and availability without touching a developer.
- Web platform and content back office
- Development, unit and lead management
- Responsive, SEO-ready front end
Education
Institutional site & enrolment
An institutional web presence for a technical training institute, with course listings and an enrolment flow that replaced manual spreadsheets.
- Course catalogue and enrolment forms
- Administration panel for staff
- Low-maintenance hosting
Health & safety
Compliance back office
Client and site management for an occupational health and safety consultancy: inspections, findings and the paperwork each visit generates, all filed against the site that produced them.
- Client and site records
- Inspection and finding tracking
- Compliance documents and reports
Law
Court settlement calculations
An internal system for a law firm that calculates the interest on each case file with official rates and indices that update themselves, and produces the court filing ready to submit. It replaces hand-built spreadsheets.
- BCRA rates, Córdoba CPI and JUS updated automatically
- Results checked against the official court spreadsheets
- Word filing generated from each calculation
About Arsysco
Started in Córdoba, engineering ever since
Arsysco began in 2014 in Córdoba, Argentina, building web applications for local businesses that needed software fitted to their reality and their budget. Those first clients taught us to understand the problem before writing code, and to leave behind something they could maintain without us.
Jeremias, the founder, has also spent years as an engineer in teams in Argentina and the Netherlands. That experience shows in how we build: tested, documented and designed to be maintained.
The studio is deliberately small and works without intermediaries. We take on a few projects at a time, so we can keep what we promise.
Direct contact
You talk to the engineer who builds your system
Two time zones
Argentina and the Netherlands
EN · ES · NL
Projects run in three languages
Your code, yours
Full ownership and handover, always
Get in touch
Tell us what is slowing your business down
Send a short description of the problem. We will tell you honestly whether we are a good fit and, if we are, how we would approach it and roughly what it would take. No obligation.