Selected engineering work 04 case studies 01 Flying Company↘ 02 Marques & Co.↘ 03 Teaching Platform↘ 04 WikiPública↘ Flying Company A platform connecting aircraft operators with qualified pilots, bringing hiring, flight operations, compliance, and payments into one workspace.
My role Full-Stack Software Engineer
Focus AI integration, role-based workflows, compliance, and payments
React Operator & pilot portal Role-based dashboards, trip management, and pilot applications.
Django Business logic & access REST APIs, permissions, and aviation compliance validation.
Anthropic Stripe External service integrations Anthropic AI API integration and Stripe payment holds and payouts.
Read / write
MariaDB AWS Operational records & documents Pilot qualifications, aircraft, trips, and documents in Amazon S3.
Cloud & delivery
Isolated application services Docker Compose on AWS EC2, behind an Nginx reverse proxy.
Docker AWS Engineering decisions
Permissions reflect the business Separated operator and pilot access, with compliance checks built into the workflows that depend on them.
Payments follow flight state Connected payment holds and payouts to flight completion, keeping billing aligned with the operational lifecycle.
Marques & Co. A custom-art storefront that takes a customer photo through AI rendering, proof approval, checkout, and print-on-demand fulfillment.
My role Founder & Full-Stack Architect
Focus Async processing, authentication, and fulfillment
Next.js TypeScript Custom-art storefront Photo uploads, interactive proofs, and passkey sign-in.
Express Stripe Orders & orchestration Checkout, approval states, notifications, and Printify fulfillment.
OpenAI Cloud Tasks Queued image rendering Cloud Tasks dispatches image jobs to independent rendering workers.
Read / write
Firestore Cloud Storage Order state & artwork Order records, original uploads, and approved production assets.
Cloud & delivery
Independently deployed services Containerized API and Python rendering workers on Google Cloud.
Cloud Run Engineering decisions
Keep slow work off the request path Moved long-running image rendering into queued, idempotent workers so customers can continue using the storefront.
Connect software to fulfillment Linked proof approval, payment, and manufacturing APIs into a single order lifecycle.
Teaching Platform A private teaching workspace for source-based lessons, synchronized live classes, homework, and personalized spaced practice.
My role Lead Architect & Full-Stack Engineer
Focus Live synchronization and source-grounded AI
React TypeScript Teacher & student PWA Lesson navigation, document viewing, and live annotations.
Cloud Functions Firebase Classroom coordination Shared session state, document ingestion, and lesson workflows.
Gemini FSRS Lessons into practice Source-anchored generation and spaced repetition scheduling.
Read / write
Firestore Shared state & learning history Firestore listeners synchronize classroom state across web clients.
Cloud & delivery
Managed lesson processing Server-side document and AI tasks run on Google Cloud services.
Cloud Run Cloud Tasks Engineering decisions
Keep generated lessons traceable Anchored exercises to locations in teacher-provided material, making the source of generated content inspectable.
Turn live lessons into practice Connected classroom evidence to FSRS review schedules, carrying learning context into personalized homework.
WikiPública A platform that turns Brazilian legislative data into searchable bills, voting records, and plain-language summaries for citizens.
My role Creator & Lead Engineer
Focus Data ingestion, domain modeling, and semantic search
Next.js TypeScript Citizen research portal Legislative dashboards and cached, server-rendered pages.
Next.js TypeScript Ingestion & domain logic Government API adapters and shared, typed domain packages.
Gemini Legislative intelligence Source-aware summaries and embeddings for semantic search.
Read / write
Firestore Normalized legislative records Bills, roll-call votes, and read models for citizen queries.
Cloud & delivery
Independent ingestion workers Background data services deployed separately from the web app.
Cloud Run Engineering decisions
Isolate unreliable external sources Used ingestion adapters with retries and backoff to handle government API rate limits and changing schemas.
Separate ingestion from presentation Shared domain packages and cached read models let the citizen portal serve data independently of background imports.
React
Django
Anthropic
Stripe
MariaDB
AWS
Docker
