TMB
Ecosystem
+104% revenue growth · 400K activated students · First mobile banking app for infoproducers
Project context
Rebrand of the ecosystem, mapping of the service blueprint, creation of a robust design system, redesign of legacy 2 web apps with AI enhancements, and design of 2 new mobile apps and 1 website.
Client
TMB is a FinTech startup with a platform business model that enables producers to sell their digital products through financing.
Role
Lead Experience Designer
Team
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CEO
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CEO
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CMO
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CMO
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PMO
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PMO
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2 POs
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2 POs
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8 CXs
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8 CXs
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Senior UX Designer
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Senior UX Designer
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Junior UX Designer
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Junior UX Designer
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Tech Manager
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Tech Manager
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Tech Lead
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Tech Lead
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6 Full-Stack Devs
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6 Full-Stack Devs
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2 QAs
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2 QAs
Brand
Challenge
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Improve brand experience and credibility
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Improve brand experience and credibility
Key actions
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Market research
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Market research
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Competitive analysis
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Competitive analysis
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Design sytem architecture
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Design sytem architecture
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Ecosystem rebrand
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Ecosystem rebrand
Impact
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104% revenue growth (2024)
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104% revenue growth (2024)
Design System
Challenge
Challenge
Challenge
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Architecting a Design System while redesigning 2 web apps and designing 2 mobile apps plus 1 additional web app aligned with the brand design.
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Architecting a Design System while redesigning 2 web apps and designing 2 mobile apps plus 1 additional web app aligned with the brand design.
Key actions
Key actions
Key actions
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Leveraged Tailwind CSS Color Generator, Tailwind CSS, and Shadcn in both Design and Front-end to accelerate delivery.
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Leveraged Tailwind CSS Color Generator, Tailwind CSS, and Shadcn in both Design and Front-end to accelerate delivery.
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Updating legacy styles directly in the Front-end via tokens, saving Development time.
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Updating legacy styles directly in the Front-end via tokens, saving Development time.
Impact
Impact
Impact
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Design and implementation up to 5x faster, reducing time-to-market by 1-2 months maximum from ideation.
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Design and implementation up to 5x faster, reducing time-to-market by 1-2 months maximum from ideation.
Producer mobile app
Challenge
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Port key web features to a mobile app in 30 days
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Port key web features to a mobile app in 30 days
Key actions
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Benchmarking
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Benchmarking
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Prototyping with Design System
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Prototyping with Design System
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Usability testing
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Usability testing
Impact
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First mobile banking app for Producers launched
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First mobile banking app for Producers launched
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Prototype completed and validated in 15 days
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Prototype completed and validated in 15 days
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20% activation compared to the web app users
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20% activation compared to the web app users
Producer web app
Producer web app
Producer web app
Challenge
Challenge
Challenge
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Users were confused by the main menu and navigation flows
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Users were confused by the main menu and navigation flows
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Users needed better visibility and control over delinquency
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Users needed better visibility and control over delinquency
Key actions
Key actions
Key actions
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Benchmarking
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Benchmarking
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User surveys and interviews
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User surveys and interviews
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User-journey mapping
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User-journey mapping
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Prototyping with Design System
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Prototyping with Design System
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Usability testing
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Usability testing
Impact
Impact
Impact
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+11,700 % increase in active Producers
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+11,700 % increase in active Producers
Consumer web app
Challenge
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Improve checkout credibility, usability, accessibility etc.
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Improve checkout credibility, usability, accessibility etc.
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Roll out new features
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Roll out new features
Key actions
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Benchmarking
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Benchmarking
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User surveys and interviews
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User surveys and interviews
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User-journey mapping
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User-journey mapping
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Prototyping with Design System
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Prototyping with Design System
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Usability testing
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Usability testing
Impact
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+355 % uplift in student credit approvals
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+355 % uplift in student credit approvals
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400 k activated students using TMB financing
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400 k activated students using TMB financing
Consumer renegotiation website
Challenge
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Reduce delinquency through loan renegotiation
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Reduce delinquency through loan renegotiation
Key actions
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Benchmarking
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Benchmarking
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Prototyping with Design System
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Prototyping with Design System
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Usability testing
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Usability testing
Impact
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Web app designed in just 30 days
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Web app designed in just 30 days
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3,655 organic visits per month — solid and consistent digital presence without paid media
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3,655 organic visits per month — solid and consistent digital presence without paid media
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444 ranked keywords, indicating growth and strong SEO optimization
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444 ranked keywords, indicating growth and strong SEO optimization
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Significant cost reduction in manual collection operations and call center workload
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Significant cost reduction in manual collection operations and call center workload
Full business impact
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Millions of USD transacted montlhy
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Millions of USD transacted montlhy
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104% revenue growth (2024)
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104% revenue growth (2024)
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11,700% increase in active Producers (2024)
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The launch introduced a new SaaS model for Greiner, with subscription plans ranging from BRL 200 to BRL 990 per month 2022
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11,700% increase in active Producers (2024)
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355% uplift in student credit approvals (2024)
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The launch introduced a new SaaS model for Greiner, with subscription plans ranging from BRL 200 to BRL 990 per month 2022
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355% uplift in student credit approvals (2024)
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35% higher collection effectiveness via AI (2024)
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35% higher collection effectiveness via AI (2024)
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140 M invoices recovered (2024)
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140 M invoices recovered (2024)
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22% revenue boost after AI collections rollout (2024)
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22% revenue boost after AI collections rollout (2024)
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87% reduction in average resolution time for overdue cases (2025)
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87% reduction in average resolution time for overdue cases (2025)
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First mobile banking app for infoprodutores launched (2025)
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First mobile banking app for infoprodutores launched (2025)
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400k activated students using TMB financing (2025)
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400k activated students using TMB financing (2025)
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Projected 65% revenue growth target (2025)
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Projected 65% revenue growth target (2025)
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Greiner Bio-One eTrack
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© Stephan Oliveira, 2026
stephan.oliveira.design@gmail.com
© Stephan Oliveira, 2026
stephan.oliveira.design@gmail.com
© Stephan Oliveira, 2026
stephan.oliveira.design@gmail.com
