Services
Polargate. We build your software.
Websites, web apps, internal portals, mobile apps and AI features. We build them, make sure people and AI assistants find them, and keep them healthy in production with the same senior team from start to finish.
- years of senior engineering
- 15+
- services across three lines
- 15
- native working languages
- 3
The three lines
What we do.
Polargate works in three lines. Build covers websites, products, internal portals, mobile apps and AI features. Grow covers SEO, AI-search visibility, paid media, content and analytics. Care is a monthly retainer for senior maintenance, monitoring and evolution. Engagements start with a paid two-week Discovery Sprint that ends with a fixed price.
- 01
Build.
Custom software in production between week four and week eight.
We build custom software for mid-market companies, and the first version reaches production in four to eight weeks at a price fixed before the build starts.
All about BuildServices in this line
- 01WebsitesWebsites that Google and AI assistants read as well as people do.
- 02AI features and agentsAssistants that answer with your company's own data.
- 03Web apps and internal portalsYour operations, out of the spreadsheet and into a real application.
- 04Integrations and automationYour systems talk to each other.
- 05Mobile appsAn app for iOS and Android that updates in minutes.
- 06Real-time voice agentsVoice agents that take the order and make the booking.
- 07Polar BrainNo AI session starts from zero again.
- 08Camera, drone and building softwareThe software layer over the cameras, sensors and drones you already have. The hardware is not ours.
- 02
Grow.
Found by people and by the assistants they ask.
We fix your search visibility in the code and measure it every month, so Google and AI assistants find you and cite you.
All about GrowServices in this line
- 03
Care.
Senior maintenance and evolution for a monthly fee.
We keep your live software secure and fast after launch, and every fix an agent proposes is reviewed by a person before it ships.
All about Care
For example: 105,212 characters of body text readable by AI crawlers across 65 URLs, up from zero. Malacca Tables
Core services
The four core services.
Each one has its own page with what it includes, the usual timeline and the projects where we did it.
01Websites
Fast sites that search engines and AI assistants can read.
- Vite
- React
- TypeScript
- Tailwind CSS
For example: 100 / 100 / 100 Lighthouse mobile: accessibility, best practices, SEO. KD.tech
02AI features and agents
Agents that work inside your systems, with a person signing off.
- Anthropic
- Claude
- OpenAI
- MCP
For example: ~2,500 guest requests handled in four months at Santo Domingo Bay. Estevano
03Web apps and internal portals
The portal that replaces the spreadsheet and the shared inbox.
- React
- Vite
- TypeScript
- Tailwind CSS
For example: 11 modules delivered in Phase 1. Elite Smart Build
04Mobile apps
Native apps in both stores, fixed over the air.
- Capacitor
- Expo
- React
- TypeScript
For example: 4 days from diagnosis to the new backend running. Concert Music Festival
Work
Work by service.
A selection of real projects. Filter by line and open each case to see what we built and the figures we measured.

KD.tech
Semiconductors and automotive optical connectivityOne platform for a semiconductor company: site, ServiceDesk and admin portal on a single codebase
327 bilingual pages in the sitemap accepted by Search Console
BuildGrowCare

Estevano
Hotel operations and guest experience softwareEstevano turns every guest request into a ticket
16 min median time to resolve a request (mean 25)
BuildCare

Malacca Tables
Premium tableware and home linen, direct to consumer retailA homeware shop rebuilt so AI search can read the catalogue
65 routes pregenerated at build time with their own metadata and JSON-LD
BuildGrowCare

Concert Music Festival
Live music and festivalsA festival app that updates itself
62 user accounts migrated with their IDs preserved
BuildGrowCare

Elite Smart Build
Construction and hotel refurbishmentA custom operating system for Elite Smart Build
23 Postgres tables with row-level security forced
BuildCare

Santo Domingo Bay
Hospitality: convention resort, casino and private beachWe rebuilt a Caribbean resort's website as static HTML
5 valid rich result items on the home page in Google's test
BuildGrowCare

Estepona Golf
Golf and leisure, Costa del Sol tourismA website in three languages for Estepona Golf
251 KB hero image weight, down from 1.3 MB
BuildCare

Global Dynamic Security Group
Private security services, Dominican RepublicBrand and bilingual site for Global Dynamic Security Group
15 pages in the brand identity manual
Build
For example: 48 audit findings confirmed and fixed. Hotel Talavera
How we work
From brief to production.
Every project starts with a paid Discovery Sprint that closes scope and price, and every change goes through the same loop of building, auditing and fixing until two passes come back clean.
Read the method01The four phases
- 01
Discover
Two paid weeks that end in a closed scope, an architecture and a fixed price.
- 02
Build
Senior engineers with AI, a review on every change and a production release in weeks.
- 03
Grow
Search, AI assistants and paid media, measured from the first week.
- 04
Care
Monthly maintenance with a first answer within 48 business hours.
02The stack
- Web
- ReactTypeScriptViteTailwind CSS
- Data
- SupabasePostgreSQLDenoVercel
- Apps
- CapacitoriOSAndroid
- AI
- AnthropicClaudeMCP
- Operations
- GitHub ActionsResend
For example: 4 days from award to technical close. B2B services company, Europe
FAQ
What people ask before we start.
How much does it cost to build a custom website or internal platform?
How long until we have something live?
Do we own the code and the data?
Can you integrate with the systems we already use?
Can you get my company mentioned in ChatGPT?
Do you maintain a site or app you did not build?
Is it safe to let an AI agent change my production code?
What happens after launch?
For example: 38 Spanish and English routes prerendered as static HTML. Santo Domingo Bay
Get started
Tell us what you want to build.
Websites, apps, custom systems and AI for companies that need them in production in weeks. Fill in the form or book a 30 minute call: a senior engineer answers within 48 business hours with a first take on scope, timeline and price.
First step
Two weeks to close scope, architecture and price before anything is built.
No price list. You get a private quote, in writing, after a short call.
Then, to build, always at a fixed price
Not ready yet?
- AI visibility auditOne-off, fixed price.














