PREMIUM SOLUTIONS

Our Services

End-to-end digital solutions for companies in Japan and Brazil. Pick a service to see what it includes, how it runs, and which technologies it uses.

Lee Sugano Digital Solutions builds software, digital products, and online presence for companies that need to digitise their operations. We cover the full path from diagnosis to maintenance, working directly in four languages.

Working languages
Portuguese, Japanese, English and Spanish
Location
Gunma, Japan
Billing
According to where the service is delivered
Service areas
6 areas, 3 core and 3 complementary
3 CORE PILLARS

Core Services

The three pillars that power every Lee Sugano project. Development, marketing and mobile under a single partner.

Web Development

Modern websites and web applications with optimized performance and responsive design.

  • Conversion-focused institutional sites and landing pages
  • Complex web platforms and SPA applications
  • Custom e-commerce with advanced integrations
  • Progressive Web Apps (PWA) with offline capabilities
  • Custom web systems for specific needs
  • Performance optimization and technical SEO
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Digital Marketing

Integrated digital strategies to increase your online presence.

  • 360 degree digital marketing strategy
  • SEO (Search Engine Optimization)
  • Social media management
  • Paid media campaigns (Google Ads, Meta Ads)
  • Email marketing and automation
  • Content marketing and copywriting
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Mobile Apps

Native and hybrid iOS and Android apps with a premium experience.

  • Native iOS apps (Swift/SwiftUI)
  • Native Android apps (Kotlin/Jetpack Compose)
  • Cross-platform apps with React Native
  • Hybrid apps with Flutter
  • Integration with APIs and backend services
  • Publishing on the App Store and Google Play
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COMPLEMENTARY SERVICES

Specialties & Add-ons

Capabilities that plug into any pillar - from design to SaaS, automation to consulting and ongoing support.

SaaS Solutions

Scalable platforms and smart dashboards for your business.

  • Multi-tenant SaaS platforms
  • Executive and analytics dashboards
  • Custom management systems (CRM, ERP)
  • Complex admin panels
  • Third-party API integrations
  • Microservices architecture
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AI & Automation

Intelligent automation and chatbots to optimize your processes.

  • Conversational AI chatbots
  • Process automation (RPA)
  • Predictive analytics and machine learning
  • Natural language processing (NLP)
  • Marketing and sales automation
  • Integration with LLMs (GPT, Claude, etc.)
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Design & Branding

Complete visual identity and interfaces that connect with your audience.

  • Complete visual identity (logo, colors, typography)
  • Brand manual and guidelines
  • UI/UX Design for web and mobile
  • Interface design (Figma, Adobe XD)
  • Motion design and micro-interactions
  • Graphic materials and visual communication
View details

How we work

All six services follow the same five-phase skeleton. The vocabulary changes with the domain; the sequence does not.

  1. 01

    Diagnosis

    Understanding the business, its audience and its goals before any technical decision.

  2. 02

    Design

    Defining the solution: architecture, interface or strategy depending on the service, validated before build.

  3. 03

    Build

    Execution using the practices of the domain, in reviewable increments.

  4. 04

    Validation

    Testing for quality, security and fit with what was defined at diagnosis.

  5. 05

    Delivery and evolution

    Launch, monitoring and continuous improvement after handover.

The five phases across each service

Each service instantiates the skeleton in the vocabulary of its own domain.

Web Development

  1. 1.Discovery & Planning
  2. 2.Design & Prototyping
  3. 3.Development
  4. 4.Testing & Optimization
  5. 5.Deploy & Maintenance

Digital Marketing

  1. 1.Digital Diagnosis
  2. 2.Strategic Planning
  3. 3.Content Creation
  4. 4.Execution & Optimization
  5. 5.Analysis & Reporting

Mobile Apps

  1. 1.Analysis & Strategy
  2. 2.UX/UI Design
  3. 3.Agile Development
  4. 4.Rigorous Testing
  5. 5.Launch & Evolution

SaaS Solutions

  1. 1.Requirements Analysis
  2. 2.Architecture & Design
  3. 3.Incremental Development
  4. 4.Testing & Security
  5. 5.Deploy & Scale

AI & Automation

  1. 1.Process Mapping
  2. 2.Solution Design
  3. 3.Training & Development
  4. 4.Integration
  5. 5.Continuous Improvement

Design & Branding

  1. 1.Brand Immersion
  2. 2.Concept Development
  3. 3.Creation & Iteration
  4. 4.Finalization
  5. 5.Brandbook

Technologies we use

The toolset in use across the six services, grouped by purpose.

Frontend and mobile

  • Flutter
  • Kotlin
  • Next.js
  • React
  • React Native
  • Redux
  • Swift
  • Tailwind CSS
  • TypeScript

Backend and data

  • Firebase
  • GraphQL
  • Node.js
  • PostgreSQL
  • Python
  • Redis

Infrastructure and cloud

  • App Store Connect
  • AWS
  • Docker
  • Kubernetes
  • Stripe
  • Vercel

AI and automation

  • Claude AI
  • Dialogflow
  • HubSpot
  • LangChain
  • Make (Integromat)
  • OpenAI GPT
  • TensorFlow
  • Zapier

Design

  • Adobe Illustrator
  • Adobe Photoshop
  • After Effects
  • Figma
  • InVision
  • Miro
  • Principle
  • Zeplin

Marketing and analytics

  • Ahrefs
  • Google Ads
  • Google Analytics
  • Hotjar
  • Mailchimp
  • Meta Business Suite
  • SEMrush

Four working languages

Project delivery, communication and documentation in Portuguese, Japanese, English or Spanish. This site is published in full in all four.

  • Português
  • 日本語
  • English
  • Español

Company details

Information required under Japan's Act on Specified Commercial Transactions.

Legal name
Lee Sugano Digital Solutions
Representative
Sugano Junior
Location
Gunma, Japan
Billing currency
According to where the service is delivered
Payment methods
Credit card or bank transfer
Email
contact@leesugano.com
Website
https://leesugano.com
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Talk about a project

Describe what you need by email, in any of the four languages. We reply with a proposed scope and timeline.

Send an emailcontact@leesugano.com