Data Infra and Data Access in Nubank

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This document summarizes Nubank's data infrastructure and access. It notes that Nubank has 55 squads processing 40 TB of data daily across 190 microservices and 29 models. The goals are to make data easy and safe to use for decisions and improve decision making. The infrastructure includes platforms like Datomic, Redshift, Spark and services like Metabase, Looker, Jupyter notebooks. Over 500 people access data tools daily. There are over 300 ETL job contributions monthly to extract, transform and load data from various sources into the data warehouse. Tools like Metabase, Looker and Jupyter notebooks are used for analysis and Databricks for complex tasks. Training, support channels and meetings help users.

Data & Analytics

Data
Infrastructure
and Data
Access in
Nubank
18/12/2018
André Tavares
Product Manager

Challenge
Platform
Data Tools
Services
ETL Jobs

• 55 squads
• ~190 microservices and
29 models in production
• 40 Tb of data
processed each day
• 500 DAUs in data tools

Make it easy and safe to use data
for human and computer made
decisions!
How to improve the quality of
decision making in the company?

Datomic
Extractor
Online
Models
Production
Services
Metabase
Jupyter
Notebooks
Looker
Amazon
Redshift
Redshift
Loader
Batch
Models
Spark
Engine
Production
Services
Datomic DB
Logs
Amazon S3
Metadata
Manager
Non-datomic
Datasources
Non-datomic
Extractor
Static Inputs
Databricks
Loader
Databricks
Serving
Layer Loader
Amazon
Dynamo DB
Serving
Layer
Platform

9
DB1 Log S0
DB1 Log S1
DB2 Log S0
Dataset Series
contract 1
contract 2
dataset 1
dataset 2
model
policy
ETL Jobs

ETL Jobs
• Anyone in the company can
contribute ETL jobs by opening a PR
in our monorepo 
• Teams are responsible for writing
and maintaining their jobs
• Jobs are written in scala (sparkSQL);
some DSLs are provided
• Use databricks to iterate on logic
• Peer review to ensure quality and
consistency
• 100 contributors making 300+
contributions per month

Data Tools
Metabase and Looker: Simple
queries, sharing plots
Jupyter: In depth analysis,
complex plots, training models
Databricks: Dataset building
and computationally intensive
tasks

Data Services
Trainings: Weekly trainings on SQL,
python or scala, new employee
onboarding, new tool rollout
Support: Dedicated slack support
channels; community of users support
each other
Meetings: Forums for sharing data
scientist and analyst work, monthly
meetings to discuss state of Data
Data Analysts: Function focused to
improving data usage in the company
(not SQL slaves!)

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原版定制【微信:790682806】【伦敦政治经济学院毕业证(LSE毕业证）】【微信:790682806】成绩单、外壳、offer、留信学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。【业务选择办理准则】一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信790682806】文凭即可二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信790682806】即可三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。留信网认证的作用: 1:该专业认证可证明留学生真实身份 2:同时对留学生所学专业登记给予评定 3:国家专业人才认证中心颁发入库证书 4:这个认证书并且可以归档倒地方 5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息 6:个人职称评审加20分 7:个人信誉贷款加10分 8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才留信网服务项目： 1、留学生专业人才库服务（留信分析） 2、国（境）学习人员提供就业推荐信服务 3、留学人员区块链存储服务 → 【关于价格问题（保证一手价格）】我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子我给客户的都是第一手的代理价格，因为我想坦诚对待大家不想跟大家在价格方面浪费时间对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！

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NCL毕业证原版定制【微信：176555708】【纽卡斯尔大学毕业证成绩单-学位证】【微信：176555708】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。 ◆◆◆◆◆ — — — — — — — — 【留学教育】留学归国服务中心 — — — — — -◆◆◆◆◆ 【主营项目】一.毕业证【微信：176555708】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！二.真实使馆公证(即留学回国人员证明,不成功不收费) 三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度) 如果您处于以下几种情况： ◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微信：176555708】 ◇面对父母的压力，希望尽快拿到； ◇不清楚认证流程以及材料该如何准备； ◇回国时间很长，忘记办理； ◇回国马上就要找工作，办给用人单位看； ◇企事业单位必须要求办理的 ◇需要报考公务员、购买免税车、落转户口 ◇申请留学生创业基金留信网认证的作用: 1:该专业认证可证明留学生真实身份 2:同时对留学生所学专业登记给予评定 3:国家专业人才认证中心颁发入库证书 4:这个认证书并且可以归档倒地方 5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息 6:个人职称评审加20分 7:个人信誉贷款加10分→ 【关于价格问题（保证一手价格）我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子我给客户的都是第一手的代理价格，因为我想坦诚对待大家不想跟大家在价格方面浪费时间对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。 8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！学历顾问：微信：176555708

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Monash毕业证原版定制【微信：176555708】【莫纳什大学毕业证成绩单-学位证】【微信：176555708】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。 ◆◆◆◆◆ — — — — — — — — 【留学教育】留学归国服务中心 — — — — — -◆◆◆◆◆ 【主营项目】一.毕业证【微信：176555708】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！二.真实使馆公证(即留学回国人员证明,不成功不收费) 三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度) 如果您处于以下几种情况： ◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微信：176555708】 ◇面对父母的压力，希望尽快拿到； ◇不清楚认证流程以及材料该如何准备； ◇回国时间很长，忘记办理； ◇回国马上就要找工作，办给用人单位看； ◇企事业单位必须要求办理的 ◇需要报考公务员、购买免税车、落转户口 ◇申请留学生创业基金留信网认证的作用: 1:该专业认证可证明留学生真实身份 2:同时对留学生所学专业登记给予评定 3:国家专业人才认证中心颁发入库证书 4:这个认证书并且可以归档倒地方 5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息 6:个人职称评审加20分 7:个人信誉贷款加10分→ 【关于价格问题（保证一手价格）我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子我给客户的都是第一手的代理价格，因为我想坦诚对待大家不想跟大家在价格方面浪费时间对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。 8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！学历顾问：微信：176555708

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1. Data Infrastructure and Data Access in Nubank 18/12/2018 André Tavares Product Manager

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3. Challenge

4. • 55 squads • ~190 microservices and 29 models in production • 40 Tb of data processed each day • 500 DAUs in data tools

5. Make it easy and safe to use data for human and computer made decisions! How to improve the quality of decision making in the company?

6. Platform

7. Datomic Extractor Online Models Production Services Metabase Jupyter Notebooks Looker Amazon Redshift Redshift Loader Batch Models Spark Engine Production Services Datomic DB Logs Amazon S3 Metadata Manager Non-datomic Datasources Non-datomic Extractor Static Inputs Databricks Loader Databricks Serving Layer Loader Amazon Dynamo DB Serving Layer Platform

8. ETL Jobs

9. 9 DB1 Log S0 DB1 Log S1 DB2 Log S0 Dataset Series contract 1 contract 2 dataset 1 dataset 2 model policy ETL Jobs

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12. Data Tools Metabase and Looker: Simple queries, sharing plots Jupyter: In depth analysis, complex plots, training models Databricks: Dataset building and computationally intensive tasks

13. Data Services

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15. We’re hiring! sou.nu/jobs-at-nubank

Data Infra and Data Access in Nubank

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