App · React Native
Spring Global app
Franchise-content coordination with geolocation targeting and localized campaigns.
4LLs
Serious products, built with a point of view.
4LLs is a software company building and operating reliable web, mobile, Smart TV, and distributed-system products—from production platforms with real constraints to focused startups with a clear next step.
Selected work
Production software, across the whole surface.
Apps and platforms shipped with teams across media, finance, commerce, travel, and consumer brands. Each entry links to a public reference and describes the product objective at a useful level.
Smart TV · OTT
Claro app for Smart TV
Shared React Native experience for Samsung Tizen and LG webOS, with playback, EPG, and in-TV checkout.
Digital ecosystem · Web / Android / iOS
Softvaro · Smiles
Travel and loyalty ecosystem spanning the Smiles website, flight and travel-package purchases, mileage management, e-commerce, and Android/iOS apps.
Streaming · Smart TV
Globo · Globoplay / Globosat Play
Streaming and media journeys across Globo surfaces, including shared Smart TV playback experiences.
Fintech · Mobile
Z1
Digital finance app for secure payments and Open Finance journeys.
Travel commerce
CVC · Flights & e-commerce
Travel booking and e-commerce journeys for selling flights, packages, and related services.
Mobile · Android / iOS
Heineken app
Mobile brand and loyalty experience for campaigns, offers, and in-store moments.
Mobile · Android / iOS
Outback app
Mobile restaurant experience for discovery, ordering, and in-store journeys.
Financial platform
Bornlogic
Banking and payments platform with resilient transaction flows and modular frontend delivery.
Marketplace · Security
Enjoei
Marketplace checkout and application-security work focused on safer user and payment journeys.
E-commerce platform
Sonata · Digifair
International e-commerce experience spanning Rails APIs, React, TypeScript, and React Native.
Products
Software we operate.
SaiQuanto and GetEstimateLoop are the current products: one makes construction estimates clearer in Brazil, the other keeps professional estimates moving from draft to approval. Digital products are charged at checkout; custom software services follow the written scope and payment schedule agreed with each client.
Current product · Brazil
SaiQuanto
A planning-first construction and renovation estimating product for Brazil, turning a few project inputs into a clear, transparent starting point.
Objective
Give people a useful first order of magnitude before they commit to a build.
Give people a useful first order of magnitude before they commit to a build.
Startups & experiments
Small products with explicit objectives.
Independent work is kept close to the idea: what problem it serves, what the next useful outcome is, and why it deserves to exist.
Product · Live
JustRoastMe
AI-powered image feedback with personalized, actionable improvement reports.
Objective
Make useful visual feedback available in one focused purchase.
Make useful visual feedback available in one focused purchase.
Product · Marketplace intelligence
Vliqs
A liquidity discovery layer that aggregates external listings, surfaces sell-now signals, and redirects buyers to the original marketplace.
Objective
Help sellers discover the price that moves an item today.
Help sellers discover the price that moves an item today.
Product · Learning game
English Arcade
Arcade-style English practice with falling cards, grammar categories, streaks, lives, and a pressure-free practice mode.
Objective
Turn focused language repetition into a game people can return to.
Turn focused language repetition into a game people can return to.
Product · Job discovery
Job Search Dashboard
A configurable job radar that combines native and assisted discovery, canonical deduplication, and profile-scoped matching in one private workflow.
Objective
Turn a fragmented job search into an auditable, personalized radar.
Turn a fragmented job search into an auditable, personalized radar.
Mobile product
AscendexS
Onboarding, body-scan capture, progression, rankings, and share cards in one mobile loop.
Objective
Turn a repeatable self-improvement ritual into visible progress.
Turn a repeatable self-improvement ritual into visible progress.
Accountability tool
ByMyWord
Commitment tracking with verification, streaks, misses, recovery, and optional stakes.
Objective
Make promises concrete enough to keep—or recover from.
Make promises concrete enough to keep—or recover from.
Browser extension · HTTP
Manga OCR Translator
Detect manga images, run OCR, and overlay translated speech bubbles in the browser.
Objective
Remove the friction between discovering a page and understanding it.
Remove the friction between discovering a page and understanding it.
Archive · Generative
museum.pet
A private visual archive from a dog’s movement recordings, including deterministic monthly artwork.
Objective
Turn ordinary movement into a durable, personal record.
Turn ordinary movement into a durable, personal record.
Platform · Marketing
ViralRank
Viral marketing contests with escrowed prizes and transparent leaderboards.
Objective
Make campaign performance legible for both creators and sponsors.
Make campaign performance legible for both creators and sponsors.
Utility · Time zones
Timezone dashboard
A responsive dashboard for comparing paired local times across locations, with daylight-saving awareness for work, travel, and daily routines.
Objective
Make cross-location planning effortless when schedules span regions.
Make cross-location planning effortless when schedules span regions.
About the build
A product studio comfortable from idea to production detail.
4LLs brings product thinking and implementation together: clarify the objective, choose the smallest durable architecture, and keep the shipped experience understandable. The common thread is not a particular framework—it is making complex software feel dependable.
Ruby on RailsGoReactReact NativeTypeScriptSmart TVDistributed systems