SG
Software Studio · Uruguay · Remote

Santiago GretterSoftware Studio

Software development, mobile apps, SaaS, and digital solutions for companies

I build end-to-end digital products: web platforms, mobile apps, backends, dashboards, SaaS, and custom solutions. This site works both as a professional portfolio and as a software studio for companies, startups, and organizations.

10+
Real projects
15+
Years in IT
Web + Mobile
Full-stack
Next.jsReact NativeNode.jsSaaSAIUruguay
11+
Projects
Web, Mobile, SaaS and production platforms
15+
Years in IT
Banking, public sector and software development
Web + Mobile
Specialization
Frontend, backend, mobile apps and realtime
6+
Own Products
RadarSocial, SG Booking Pro, NutriMVP, PlayDuel, CRM and SaaS Starter

Software Studio

Software Studio focused on digital products

This site combines my experience as a developer with a commercial offering for companies: digital product development, custom solutions, SaaS platforms, mobile apps, and projects ready to adapt or license.

💼

Professional portfolio with real case studies

🧩

Software development services for companies

🚀

Proprietary products ready to adapt

Software Studio

Services

Digital solutions for companies, startups, institutions, and projects that need real, scalable, production-ready technology.

Web Development

Institutional websites, web platforms, commercial landing pages, admin dashboards, and products with Next.js, React, and TypeScript.

Next.jsReactTypeScriptSEOAdmin panels

Mobile Apps

Android/iOS apps with React Native, authentication, maps, push notifications, chat, payments, and store publishing.

React NativeAndroidiOSPushMaps

SaaS & Platforms

SaaS products, CRM, marketplaces, internal systems, business portals, and white-label solutions ready to adapt.

SaaSCRMMarketplaceWhite-labelBilling

Sectores

Clients and sectors

Experience combining proprietary products, institutional solutions, and software development for organizations with real needs around operations, content, users, and scalability.

🏢

Companies and startups

Web platforms, SaaS, marketplaces, CRM, dashboards, white-label products, and commercial solutions.

🏛️

Institutions and public sector

Internal systems, IT support, reporting, intranets, automation, ERP/CRM, and operational processes.

🎨

Culture, education and museums

Institutional websites, interactive kiosks, digital catalogs, touch experiences, bilingual content, and multimedia management.

Stack

Technologies we use

Modern stack to build production-ready web, mobile, SaaS products, backends, dashboards, and integrations.

🌐

Web & Frontend

Next.jsReactTypeScriptTailwindSEOOpenGraph
📱

Mobile & Realtime

React NativeSocket.IOWebRTCPush NotificationsMapsBLE
☁️

Backend & Cloud

Node.jsExpressMongoDBPostgreSQLSupabaseFirebaseVercel

Diferencial

Why work with me?

A combination of technical experience, product thinking, and the ability to build complete solutions from idea to production.

End-to-end development

Web, mobile, backend, dashboards, integrations, and deployment from a single technical vision.

🧠

Real experience

Background in banking, public sector, IT support, reporting, internal systems, and software development.

🚀

Own products

Built real platforms such as RadarSocial, NutriMVP, SG Copilot CRM, PlayDuel, and SaaS starters.

📈

Business focus

I work with users, operations, scalability, monetization, and product evolution in mind.

Modalidades

Work models

Different ways to collaborate depending on the project stage, budget, and business goal.

🛠️

Custom project

Complete development of a website, app, dashboard, internal system, or platform from scratch.

🏷️

White-label product

Adaptation of an existing base such as a marketplace, SaaS, CRM, interactive kiosk, or mobile app.

🤝

Licensing / partnership

Use, evolution, or commercial deployment of proprietary products such as RadarSocial, NutriMVP, or SG Copilot CRM.

Portfolio

Case studies and products

A selection of real projects, proprietary platforms, and solutions ready to adapt, license, or deploy.

Own products

Platforms, SaaS, apps, and digital products built as commercial bases, licensing opportunities, or product evolution.

RadarSocial — App / main view
Featured project
Web: Live · Android: Google Play Closed Testing
Licensing

RadarSocial

Role
Full Stack
Type
Mobile + API
Status
Web: Live

Full-stack platform with a live web version and an Android app currently in Google Play Closed Testing. It combines social + services experiences in a single product, including chat, maps, BLE, audio, video calls, push notifications, mobile monetization, and a scalable backend.

Next.jsTypeScriptReact NativeNode.jsMongoDBSocket.IOFirebaseAdMobGoogle Play BillingWebRTCBLE
Android version currently in Google Play Closed Testing. Access available upon request.
SG Booking Pro
Featured project
SaaS · Functional MVP
Booking SaaS

SG Booking Pro

Role
Full Stack
Type
Web + Backend
Status
SaaS

SaaS platform for online bookings for professionals and small businesses. Includes services, scheduling, public bookings, automated confirmations, and administration.

Next.jsTypeScriptNode.jsExpressMongoDBResendTailwind
DemoRepo: PrivateView details
NutriMVP — main screen
Featured project
Android MVP · Preview upon request

NutriMVP

Role
Full Stack
Type
Mobile + API
Status
Android MVP

Mobile MVP app to scan products, check nutrition facts, compare supermarket prices, and optimize grocery shopping. It includes scan history, favorites, price alerts, smart shopping lists, nearby supermarket maps based on user location, product-based supermarket mapping, and suggested routes to buy products at the lowest price. It integrates data from OpenFoodFacts, Firebase/Firestore, and a custom backend with PostgreSQL/Supabase.

React NativeTypeScriptNode.jsExpressFirebase AuthFirestorePostgreSQLSupabaseOpenFoodFacts
Demo (coming soon)Repo: PrivateView details
PlayDuel — main lobby
Web App · Realtime Gaming
Realtime gaming

PlayDuel

Role
Full Stack
Type
Web + Backend
Status
Web App

Full-stack web platform for real-time 1v1 duels with competitive games, lobby, invites, matchmaking, match chat, history, leaderboard, demo balance, and result logic. Built as a foundation for a competitive gaming platform with wallet and tournaments.

Next.jsTypeScriptNode.jsExpressSocket.IOPostgreSQLPrismaTailwind CSS
Demo (coming soon)Repo: PrivateView details
SG SaaS Starter — Main dashboard
Digital Product · Gumroad

SG SaaS Starter

Role
Full Stack
Type
Web + Backend
Status
Digital Product

Commercial full-stack starter built for SaaS products. It includes a modern admin dashboard, authentication, users, activity, notifications, settings, a Node.js API backend, and a production-ready structure to extend into real products or new commercial builds.

Next.jsTypeScriptTailwind CSSNode.jsExpressMongoDB
Services Marketplace — main view
Mobile App · In development
White-label / Deployment

Services Marketplace

Role
Full Stack
Type
Mobile + API
Status
Mobile App

Current project in development. Full-stack mobile platform connecting clients, providers, and admin in a single workflow: service requests, real-time chat, map, location, push notifications, reviews, history, and admin dashboard.

React NativeTypeScriptNode.jsExpressMongoDBSocket.IOFirebaseGoogle Maps
Demo (coming soon)Repo: PrivateView details
SG Copilot CRM — Main dashboard
SaaS · Live

SG Copilot CRM

Role
Full Stack
Type
Web + Backend
Status
SaaS

Full-stack SaaS CRM focused on sales operations, client follow-up, and AI-powered productivity. It includes authentication, organizations, Stripe subscriptions, Free/Pro/Business plans, usage dashboard, semantic document search, document Q&A, AI client summaries, and a Business-only AI audit/insights module.

Next.jsTypeScriptSupabaseStripeOpenAIVercelTailwind CSSPostgreSQL
DemoRepo: PrivateView details

Available products

Interested in adapting or licensing a product?

We can discuss licensing, white-label, commercial deployment, product evolution, or partnership opportunities.

Institutional and client work

Real projects for institutions, cultural spaces, intranets, websites, and operational solutions.

Museo Canario website
Web: Live

Museo Canario (Web)

Role
Full Stack
Type
Web + Backend
Status
Web: Live

Official bilingual (ES/EN) production website, integrated with a shared Admin panel (also used by the kiosk) to manage content, rooms, and items.

Next.jsTypeScriptTailwindMongoDBCloudinaryCloudflare
Kiosco interactivo
Tablet: Live · Restricted
Adaptable

Interactive Kiosk (Museum)

Role
Full Stack
Type
Web + Backend
Status
Tablet: Live

Tablet-fixed museum experience: interactive floor map, guided tour, 3D pieces (Luma), QR-based self-guide per item, and full content management via Admin panel.

Next.jsTypeScriptTailwindFramer MotionMongoDBCloudinary
Sociedad Islas Canarias Uruguay
Web: Live

Sociedad Islas Canarias Uruguay

Role
Full Stack
Type
Web + Backend
Status
Web: Live

Bilingual institutional website built for Sociedad Islas Canarias Uruguay. Includes content management, events, gallery, news, administration, SEO, and responsive experience.

Next.jsTypeScriptTailwindMongoDBSupabaseCloudflareVercel
Intranet (WordPress) screenshot
Internal · Screenshots only

Intranet (WordPress) — Public agency

Role
Full Stack
Type
Web + Backend
Status
Internal

Internal intranet (no public access) for communication and operations. End-to-end WordPress implementation: custom UI, social modules, events and knowledge base, plus performance and maintenance.

WordPressPHPHTML/CSSJavaScript
Business / Licensing

Commercial projects

Digital products developed and available for licensing, partnership, commercial deployment, or acquisition, depending on scope and business model.

In addition to building custom solutions, I also create proprietary products with commercial potential. Some projects in this portfolio can be adapted, licensed, or deployed for third parties under different collaboration models.

Available for licensing
Flagship product

RadarSocial

Full-stack real-time social and services platform. Includes mobile app, web, backend, chat, maps, calls, BLE, monetization, and admin panel. Available for licensing, partnership, or commercial deployment.

Model
License / Partnership / Acquisition
Ideal for
Communities, networking, geolocated services, private social platforms, or hybrid social-services models.
LicensePartnershipAcquisition
Available for licensing / deployment
B2B SaaS

SG Copilot CRM

Full-stack SaaS CRM with AI, subscription billing, plan limits, smart documents, and a Business audit/insights module. Available for licensing, white-label, or commercial deployment for teams, consulting firms, and B2B operations.

Model
License / White-label / Deployment
Ideal for
Sales teams, consulting firms, B2B operations, agencies, or companies needing a CRM + AI + SaaS-ready product.
SaaSLicenseWhite-label
Available for licensing
SaaS Booking

SG Booking Pro

Booking SaaS platform for professionals and small businesses.

Model
License / White-label / Deployment
Ideal for
Clinics, studios, beauty centers, professionals and services.
SaaSWhite-labelBooking
Available for evolution / deployment
Smart Shopping MVP

NutriMVP

Mobile MVP focused on smart grocery shopping: product scanning, nutrition data, price comparison, nearby supermarket maps, smart shopping lists, and suggested routes to buy at the lowest price. Available for product evolution, vertical deployment, or partnership.

Model
Product evolution / Partnership / Deployment
Ideal for
Retail, supermarkets, consumer goods, savings apps, price comparison, nutrition, or location-based mobile experiences.
MVPSmart ShoppingPartnership
Available on Gumroad / Licensing
Digital Product

SG SaaS Starter

Full-stack starter focused on SaaS and admin dashboards. Available as a digital product on Gumroad and also as an adaptable base for deployments, white-label solutions, or new commercial products.

Model
Digital product / License / White-label
Ideal for
Founders, technical teams, agencies, or developers who need a modern foundation to launch a SaaS product or admin dashboard faster.
GumroadLicenseWhite-label
Available for deployment

Services Marketplace

Mobile solution designed to connect clients, providers, and admin workflows in a single operation. Includes requests, real-time chat, map, history, reviews, and admin dashboard. Available for commercial deployment and vertical adaptation.

Model
Deployment / White-label / Adaptation
Ideal for
Service companies, local verticals, multi-provider operations, or white-label products aimed at end customers.
DeploymentWhite-labelAdaptation
Available for adaptation

Interactive Kiosk / Museum

Interactive system for cultural, educational, or institutional spaces. It can be adapted as an exhibition, consultation, and immersive experience solution for projects with specific content and operational requirements.

Model
Custom project / Partial license
Ideal for
Museums, cultural centers, educational spaces, institutional exhibitions, or interactive installations with curated content.
Custom projectPartial licenseAdaptation
Available for evolution / partnership
Gaming Platform

PlayDuel

Real-time 1v1 duel platform with lobby, competitive games, chat, ranking, history, and demo balance. It can evolve into tournaments, real wallet, subscriptions, white-label, or a competitive gaming model by vertical.

Model
Partnership / White-label / Product evolution
Ideal for
Competitive gaming, communities, private tournaments, entertainment platforms, casual eSports, or products with real-time mechanics.
GamingRealtimeWhite-label

If you are interested in licensing one of these products, implementing it for your organization, or exploring a partnership, feel free to contact me to receive a commercial one-pager, scope proposal, or collaboration option.

Possible models: licensing, deployment, white-label, vertical adaptation, strategic partnership, or acquisition, depending on the project.
Also available for adaptation to other models, sectors, or verticals.

Proceso

Work process

A simple and structured way to turn an idea into a functional, scalable, production-ready solution.

🔎

1. Discovery

We analyze the idea, goals, users, scope, priorities, and business model.

🏗️

2. Architecture

We define the technical structure: frontend, backend, database, integrations, and deployment.

💻

3. Development

We build the solution in stages, validating progress and prioritizing what creates the most value.

🚀

4. Launch

We publish, test, adjust, and leave the foundation ready for support, improvements, or commercial evolution.

Portfolio profesional

Professional background

Previous background in technology consulting, banking, public sector, IT support, internal systems, reporting, ERP/CRM, and web development.

Tech consulting (client in banking sector) · Montevideo, Uruguay

Systems / Functional Analyst · IT Support (On-site)

2013 – 2022
  • Functional/technical point of contact for CRM/ERP modules (Procurement and HR) within the Development area.
  • Direct collaboration with end users and internal bank teams: requirements, tracking and post-production support.
  • Coordination with vendors and stakeholders for analysis, incident resolution and iterative improvements.
  • System integrations and middleware work + automation for daily operational flows (logs, processes, deposits).
  • Automation with Control-M: reduced recurring manual tasks and operational errors.
  • Reporting/BI: business reports and dashboards (SQL/Oracle + Power BI/Excel) integrating sources (banking/CRM/ERP).
  • Operational documents/reports (Java + Oracle + JasperReports) supporting internal processes.
  • Agile delivery (Scrum) and tracking tools (JIRA).
JavaOracleSQLJasperReportsPower BIControl-MCRM/ERPMiddlewareJIRAScrum

Public sector agency (Registry) · Montevideo, Uruguay

Web Design & Development · IT Help Desk Support (On-site)

2023 – 2024
  • On-site IT support for internal users: maintenance, incident handling, and operational assistance.
  • Built and supported internal applications and iterative improvements.
  • Web design & maintenance (HTML/CSS/JS + PHP/WordPress) for internal sites/modules.
  • Reporting and documentation: JasperReports/Jaspersoft Studio for business needs.
  • ERP: Odoo module development and integrations with Oracle database.
JavaJavaScriptOracleJasperReportsOdooWordPressHTML/CSS

Software factory (web projects) · Montevideo, Uruguay

Web Design & Development · Full-Stack Java Developer

2011 – 2013
  • Built web applications with Java (Servlet/JSP) and front-end (JS/CSS/HTML).
  • Implemented solutions using Play Framework and classic Java stack (Hibernate/Maven/Tomcat).
  • Worked iteratively with an agile mindset (Scrum) and dev tooling (Eclipse).
JavaPlay FrameworkServlet/JSPHibernateMavenTomcatMySQL

Perfil personal

Technical profile

Personal technical experience behind the studio: full-stack development, mobile, backend, real-time features, integrations, and production deployments.

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Web Frontend

  • Next.js (App Router)
  • React + TypeScript
  • Responsive UI + technical SEO
  • OpenGraph / metadata
📱

Mobile (RadarSocial)

  • React Native (Android)
  • Real-time chat (Socket.IO)
  • Audio/Video calls (WebRTC)
  • Stickers + rich media
  • Maps + geolocation
  • FCM/Notifee (push)
  • IAP (Google Play)
⚙️

Backend & Infra

  • Node.js / Express
  • JWT auth
  • MongoDB
  • REST APIs
  • Cloudinary / Firebase Storage
  • Deploy: Vercel + Cloudflare

Stack profesional

Tools and technologies

Technologies used in real products, commercial platforms, mobile apps, dashboards, integrations, and production deployments.

Next.jsReactTypeScriptReact NativeNode.jsExpressMongoDBPostgreSQLSupabaseFirebaseSocket.IOWebRTCStripeOpenAIVercelCloudflare

Disponibilidad

Available for new projects

I work with companies, startups, institutions, and proprietary projects that need to build, improve, or scale digital solutions: web, mobile, backend, SaaS, dashboards, integrations, and commercial products.

Services:FreelanceFull-TimePart-TimeWebMobileBackend
Ideal for:Local companiesStartupsSoftware StudioDigital product
  • Available for freelance projects and digital product development.
  • Open to employment opportunities with local companies in Uruguay.
  • Experience combining business, product, software development, and application support.
  • Flexible for remote, hybrid, or on-site arrangements depending on the company or project.
Request proposalDownload CVTypical response time: 24–48h

FAQ

FAQ

Quick answers for companies, startups, or organizations evaluating a digital solution.

I work under my personal brand Santiago Gretter Software Studio. I can take projects as a full-stack developer or as a provider of a complete solution depending on scope.

📅 Schedule

Book an intro meeting

We can talk for 15 minutes about your project, idea, MVP, app, SaaS, website, or a possible work opportunity.

Software Studio

Have an idea, company, or product to build?

I can help turn an idea into a real solution: from a professional website or mobile app to a SaaS platform, internal system, marketplace, or product ready to commercialize.

Contacto comercial

Let’s talk about your project

Tell me what you want to build, improve, or launch. It can be a website, mobile app, SaaS, internal system, marketplace, dashboard, or a custom solution for your company.

📩 Email
gretter88@gmail.com
24–48h response
Ideal for proposals, MVPs, SaaS, mobile apps, and web platforms.
💬Let’s talk