Woovi Developers Jobs

• Woovi
• OpenPix

A Woovi is an instant payment platform for business

Code Challenges

You can code one of these code challenges

GraphQL Relay CRUD Ledger

• build a simple GraphQL + Relay CRUD
• write it down your decision making process and trade-offs
• more info here crud-bank-graphql-relay.md

Leaky Bucket

• build a simple Leaky Bucket code
• more info here leaky bucket

Dict Simulator

• create the DICT API using node and mongodb

ICOM/SPI Simulator

• create the spi message system using iso20022 messages
• read more about it here https://www.bcb.gov.br/estabilidadefinanceira/comunicacaodados
• iso20022 definition https://www.iso20022.org/iso-20022-message-definitions
• volume VI - https://www.bcb.gov.br/content/estabilidadefinanceira/cedsfn/Catalogos/Catalogo_de_Servicos_do_SFN_Volume_VI_Versao_509.pdf
• minimal requirement is to implement pacs

Mini n8n/zapier

• Use React Flow to create a mini n8n embeded using React
• it should have at least 2 nodes: API and Webhook

OpenFinance Simulator

• simulate OpenFinance APIs, implement like you are a fintech
• initial repo https://github.com/woovibr/openfinance-simulator

Integrate with NFE-e

• simulate or integrate with NF-e system
• manual here https://www.nfe.fazenda.gov.br/portal/exibirArquivo.aspx?conteudo=LrBx7WT9PuA=
• good starting point https://github.com/eletroswing/a-note/tree/main/docs

deliverables: github repo, excalidraw, markdown

DevOps Proxmox Challenge

• install proxmox
• automate creation of HA k8s cluster using microk8s
• automate creation of Redis and MongoDB replicaset cluster

deliverables: github repo, excalidraw, markdown

CI/CD Challenge

• install tekton cd
• create 2 pipelines: one for staging and one for production
• automate creation of github ssh private key and github webhook

deliverables: github repo, excalidraw, markdown

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RFC Challenges

Read this to understand https://blog.pragmaticengineer.com/scaling-engineering-teams-via-writing-things-down-rfcs/

deliverables: markdown + excalidraw (your RFC proposal)

RFC Architecture + Database Schema modeling Challenge

• How would you design Credit on top of Pix?
• How would you structure a data lake for Woovi?
• How would you design a financial monitoring system?

Reviewers

share github with:

sibelius

References

• Woovi Playground - production Woovi code sample
• Relay Workshop - learn GraphQL + Relay with exercises

Fintech Problems

If you solved any of this problems, send a message to me

• KYC
• Ledger
• Scaling
• Reliability
• Latency
• Security
• Data Consistency
• Integration with many external systems
• Antifraud
• Anti-money laundering
• Money monitoring
• Realtime analysis
• Distributed System
• Domain Driven Design
• Decoupling Systems
• Regulation
• Report generation
• Specificity of each payment method
• Complaince
• Automation of process
• Conciliation
• Auditing
• Internal Controls
• API Contracts
• Third parties management