preislabs.dev

Work

Projects we have worked on and what each one solved, described by the problem and the stack.

Brands we have worked with

DasaFleuryMater DeiAfyaGoHealthNumeralHydraHostStableDryLoopMeInOpenCourtiziBankFabius LabsNimble.LARedFoxOrigio EnergiaGeexKPBoardCrosscurrent DigitalFreedom SquareFIAP

01

Dating App

A cross platform mobile product shipped to the App Store and Google Play, with a GraphQL and Prisma backend behind it. The challenge: features that cut across the whole stack, from data model to UI, delivered with over the air updates, push notifications and CI/CD on Kubernetes.

React NativeNestJSGraphQLPrismaKubernetes

02

AI Native Ecosystem

The challenge: provisioning and tooling for high performance hardware, solved with infrastructure as code on Terraform, identity with Auth0 and edge delivery on Cloudflare Workers.

TerraformNode.jsAuth0Cloudflare

03

Automated Bookkeeping Platform

The challenge: keeping money data accurate across distributed sources, solved with reconciliation pipelines, a revenue recognition engine on Delta Lake and accounting integrations.

Node.jsPythonDelta LakePandas

04

Content & Community Platforms

End to end product engineering across multiple products: a digital content platform serving a large catalog on web and mobile, and a community portal with subscriptions and payments. From stack selection to production, leading the technical decisions.

ReactReact NativeGraphQLNode.js

05

Marketing Landing Pages

Immersive marketing sites and landing pages: scroll driven motion, multilingual prerendered SEO, a code owned CMS and an image pipeline, all running on free tier infrastructure.

ReactTypeScriptGSAPSEO

06

Guest Guides Platform

Multi tenant platform where hospitality hosts build their own digital guest guides with a visual editor, with row level security isolating every tenant and subscriptions via Stripe.

ReactSupabaseStripeNetlify

07

Healthcare Workforce Platform

SaaS for medical shift scheduling and automated payments across hospital networks, built as cloud native microservices to run at large scale.

NestJSKubernetesGCPGraphQL

08

Digital Bank & Payments

Neobank stack: account and ledger APIs, a dedicated payments service and a cross platform mobile app, with secure auth and transaction processing.

AdonisJSNode.jsFlutterMySQL

09

Sports Court Booking

Booking marketplace for sports courts: real time availability, online scheduling and Stripe payments, with QR check in and an admin dashboard for venues.

Next.jsPrismaStripeSupabase

10

Cloud Data Lake & Analytics

ETL data pipeline moving CRM data through S3, Glue and Athena into BI dashboards, orchestrated with Step Functions and tuned for fast queries.

AWSAthenaPythonGlue

11

Real Time Financial Dashboard

Real time financial analytics dashboard with an event driven engine handling complex tax regulations.

Node.jsRabbitMQAnalytics

Languages & Core

TypeScriptJavaScriptNode.jsPythonGoPHP / Laravel

Backend & APIs

NestJSGraphQL & ApolloExpress & HonoREST APIsMicroservicesAdonisJS

Frontend & Mobile

ReactReact NativeExpoNext.js & RemixVue.jsTailwind CSS

Data & Messaging

PostgreSQLMongoDBPrisma & TypeORMRedisQueuesDelta Lake

Cloud & DevOps

AWSGoogle CloudAzureKubernetesDockerTerraformGitHub ActionsAuth0Git

Real Time, IoT & Testing

Socket.IOMQTTArduinoJest