Product systems
Angular, React, TypeScript, reusable components, product requirements, accessibility, performance, and clear user flows.
André Nicolas · Full Stack Engineer
Product systems,
clear experiences.
I build software across frontend, APIs, data, platform, and AI-enabled workflows—using product context and strong interfaces to make complex work usable.
Frontend Engineer at MSPAFull-stack product and systems workAI-enabled delivery with engineering judgment
How I contribute
A frontend specialty,
end-to-end reach.
Services & platform
Go, REST/internal APIs, SQL/PostgreSQL, migrations, asynchronous processing, Cloudflare services, CI/CD, and production debugging.
AI & engineering practice
User-facing Genkit features, structured prompts and responses, plus AI-native exploration, review, testing, and iteration with human technical judgment.
Java foundation
Academic Java work, including an Android CRUD project with SQLite and native Android components—clearly scoped as project experience.
Selected work
Products, systems
and useful tools.
Each project is a piece of evidence: the problem, the decisions made, and the experience delivered.
MSPA Compass
Turning privacy compliance into a guided product experience.
A privacy and compliance platform that makes high-responsibility LGPD workflows clearer for teams with different technical backgrounds.
AngularTypeScriptProduct systems
Read case study Map
AssessAct
MSPA Trust Center
Making consent visible, enforceable and auditable.
A framework-agnostic privacy layer that turns consent from a visual banner into an enforceable, auditable product capability.
Web ComponentsEdge architecturePrivacy
Read case study FechaRacha - Group Contribution Goals
Trustworthy coordination for group contribution goals.
A full-stack product for creating group contribution goals, inviting participants, and tracking declared contributions without holding or moving money.
Next.jsPostgreSQLAuthorization
Read case study Invite
ContributeTrack
Terto Beats - Digital Assets Marketplace
Building a digital marketplace for music creators.
A personal marketplace for digital music assets, designed around the full journey from discovery through purchase and delivery.
CommerceCheckoutDigital delivery
Read case study Discover
CheckoutDeliver
Saúde em Campo - Offline-first Field Architecture
Designing reliable field work for unreliable connectivity.
An architecture for an offline-first health-field application with local data isolation, synchronization safeguards, and role-aware workflows.
React NativeOffline syncSQLite
Read case study Capture
SyncResume
Diário de Campo Escoteiro - Offline-first PWA
Field records that continue working after the connection drops.
An installable offline-first PWA for field records, with local data and automatic CouchDB synchronization after reconnecting.
ReactPWASynchronization
Read case study Capture
SyncResume
MSPA Compliance Portal
Making dense compliance knowledge easier to use.
A compliance knowledge experience that gives people immediate context without interrupting the task of reading.
AstroAccessibilityShared systems
Read case study Read
DefineUnderstand
MSPA Landing Page
A flexible acquisition system, not a single marketing page.
A fast, reusable landing-page system that supports different campaign contexts without compromising performance.
AstroSEOPerformance
Read case study Read
DefineUnderstand
RendeCerto - Financial Simulation App
Making financial scenarios understandable and reliable.
A financial simulation tool built around reliable calculation and readable comparison of investment scenarios.
Next.jsTestingCalculation logic
Read case study Input
SimulateCompare
Quebrando Fronteiras - Social Impact Platform
Reducing friction where support turns into action.
A social-impact platform refactor focused on making high-intent donation journeys clearer and easier to complete.
Next.jsConversionSocial impact
Read case study Missões do Dia - Java Android Project
A scoped Java foundation in a native Android CRUD app.
An academic Android Java application for managing missions, demonstrating CRUD, local persistence, and native Android lifecycle components.
JavaAndroidSQLite
Read case study Capture
SyncResume
Deep Work Rhythm
A calmer place to make room for one thing.
A personal focus tool that combines a configurable session timer, subtle presence sounds, a garden-click moment, and a playlist made for meaningful work.
Next.jsReactTypeScript
Read case study 30:00
PresenceBegin
RegexSimple - Reactive Learning Tool
Helping people learn patterns through immediate feedback.
A real-time learning tool that makes regular expressions less intimidating through direct, progressive feedback.
AngularRxJSInteraction design
Read case study Pattern
TestLearn
How I work
Understand the system.
Make the product clear.
- 01 Understand the people, context and constraints.
- 02 Shape an experience around the actual problem.
- 03 Engineer maintainable boundaries and interactions.
- 04 Iterate with the product in use.
Let’s build something