The Curious Engineer

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Building Nubank

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Make the extraordinary happen. Discover our success stories and careers at Nu. The Future is Purple!

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377 from 16 May 2017 to 29 Oct 2026
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2026 38

  1. From using AI to operating with AI: What changes in product management when the bottlenecks disappear
  2. Beyond the dashboard: What I learned about data without an analytical background
  3. From support to root cause: what a CX person really does at Nubank
  4. The code was the easy part: Lessons from contributing to the Clojure language
  5. Squeezing ~2× MFU out of our training runs
  6. Feature stores in real-time ML, part 3: Examples from Nubank
  7. Beyond A/B Testing: Designing Experiments When the Space Is Too Large to Explore
  8. When the team plays, Pix pauses: what the World Cup teaches us about outliers
  9. Designing Claude for ears, not eyes: An accessibility skill for blind and low-vision users
  10. Beyond the data: what a Business Analyst does at Nubank
  11. From AI demos to real work: How Engineering and Operations learn side by side
  12. Why this year’s Clojure/Conj matters beyond the conference
  13. NFR Brain: challenging the status quo of risk management with data
  14. How we built a benchmarking framework to horizontally accelerate transaction model research
  15. When AI skills become supply-chain dependencies
  16. Nubank Brazil 2027 Internship Program: developing talent for an AI-native world
  17. Inside the Nu Young Apprentice Program 2026
  18. How Nubank uses causality, machine learning and Python to support credit limit increase decisions
  19. How Nubank distributes infrastructure ownership to operate more than 21 thousand databases with a lean team
  20. From feature to platform: how Nubank reinvented its conversation architecture
  21. Feature stores for real-time ML: Part 2 – Lessons learned from production
  22. Feature stores for real-time ML: Why and when to centralize feature logic
  23. The principles that uphold Nubank’s culture
  24. From complexity to simplicity: A principled approach to big data understanding
  25. A day in the life of an Analytics Engineer at Nubank
  26. Nubank Featured Among LinkedIn Top Companies in Brazil in 2026
  27. How Nubank Uses Transformers to Model Financial Habits at Scale
  28. Design at scale: how to maintain excellence when your product never stops growing
  29. Building AI agents for 131 million customers
  30. FinConnect: Building a standardized global connectivity platform for financial services
  31. The Nu way to start: Discover the Colombia 2026 Internship Program
  32. What changes when your product reaches 127 million people
  33. Redefining the employee journey at Nubank: a product-centric approach to HR
  34. Building AI agents in practice with Clojure
  35. Everything you need to know about the 2026 Nu Mexico Internship Program
  36. Unlocking financial insights: How Nubank powers personalized experiences with foundation models
  37. Designing real systems with immutable data in Clojure
  38. How we reduced critical path latency by 76% at Nubank

2025 81

  1. Building elegant interfaces with ClojureScript, React, and UIx
  2. 12 years of Component: A decade of interactive development
  3. How NuFilebox Reverse strengthens file security at Nubank
  4. An incremental strategy with AI support for unit testing in Clojure
  5. Inside Nubank: Discover the daily life of those who make the extraordinary happen
  6. Nubank leaders experience the customer journey in an immersion day
  7. Inside NuCel: The strategy for launching a new vertical in Nubank’s app
  8. How prompt engineering helps us communicate with machines and why it matters
  9. From day one to first delivery: How we redesigned Nubank’s Engineering onboarding
  10. Clojure South conference at Nubank: two days of community, code, and collaboration
  11. 3 Lessons from implementing Controlled-Experiment Using Pre-Experiment Data (CUPED) at Nubank
  12. How Nubank builds its leadership team and a culture of ownership and impact
  13. Toronto, meet Nu: Building the purple future from Canada
  14. Explaining Financial Models by Deleting Transactions
  15. Buddy at Nubank: Supporting New Hires on Their Journey
  16. Building our future, together: Evolving how we work at Nu
  17. Merco Talento Brazil 2025: Nubank ranks among the top 5 most attractive companies to work for
  18. Functional programming, demystified: What we learned at Nu Engineering Meetup
  19. How to Prepare for a Job Interview at Nubank: 10 Key Points
  20. Data and AI culture: How Nu’s philosophy became a competitive advantage
  21. Nubank: Best Financial Services Company to Work for on Glassdoor 2025
  22. Clojure South: Nubank brings the community together in Brazil and beyond
  23. Giving Foundation Models a Notion of Now
  24. Muon for Improved Foundation Model Pretraining Data Efficiency
  25. Leveraging Internal Platforms through InnerSource
  26. How Nubank Built its in-house log platform
  27. A/B Testing for Decision of scaling or decommissioning an Human Resources product
  28. How Nubank models risk for smarter, scalable credit limit increases
  29. 10 years of engineering at Nubank: Lessons from scaling to 122+ million customers
  30. Avalanche stack and real-time streaming applications at Nu
  31. What’s it like to work at Nubank? Inside the process of turning ideas into solutions
  32. Mastering Streaming Data
  33. The future of AI in Finance: Insights from Nubank’s Tech Leaders at Purple MinDS
  34. Pioneering the Future of Work: How Nubank is Transforming HR with AI
  35. Optimizing User Narratives for Foundation Models
  36. Scaling fraud defense: How Nubank evolved its risk analysis platform
  37. Inside Nubank’s engineering: Discover the technical backstage powering our innovation
  38. Inside the role: What does a Chief of Staff do at Nubank?
  39. Why choose Nu: A company that values your growth and impact
  40. What our tech and product teams are building in Mexico: A look inside Nu
  41. Introducing Purple Rockets: Your path to making an impact at Nu Mexico
  42. Building bridges: The role of Business Analysts at Nubank
  43. Evolving Nubank’s Architecture Toward Thoughtful Platformization
  44. Welcome to Bogotá: Nu Colombia’s home base
  45. Discover Spark: Nubank’s largest and most innovative office in Brazil
  46. Journey, culture, and impact: Stories from those who’ve been building Nubank for 10 years
  47. Building Foundation Models into Nubank’s AI Platform
  48. Nu Colombia continues to advance in the MERCO Talento 2025
  49. Building the Future of Clojure: Welcoming Christoph Neumann as Nubank’s First Clojure Developer Advocate
  50. Simplicity to scale systems and transform software engineering
  51. Nu Mexico climbs to 25th in Merco Talento 2025
  52. AskNu: A RAG solution to increase Employees Productivity at Nubank
  53. From traditional companies to Nubank: career transformation stories in the financial industry
  54. Nu at Talent Land México 2025: Scaling with simplicity, purpose, and impact
  55. Observability with Open Source and AWS
  56. Fine-Tuning Transaction User Models
  57. Working at Nubank: What’s Behind the Extraordinary?
  58. Welcome to Work Polanco: Nu’s office in Mexico City
  59. Exploring the future with intelligent agents
  60. Lessons learned organizing Nubank’s first company-wide LLM hackathon
  61. Defining an Interface Between Transaction Data and Foundation Models
  62. Platform engineering, Observability, and scaling Mobile Development
  63. Nu Mexico makes its mark: Celebrating a spot on LinkedIn Top Companies
  64. Nubank makes the LinkedIn Top Companies 2025 list in Brazil
  65. Managing Cloud Limits
  66. Practices to scale Machine Learning operations
  67. A journey of growth at Nu
  68. Data Science applied across multiple sectors: Nubank DS & ML Meetup #93
  69. Understanding Our Customers’ Finances Through Foundation Models
  70. Making Real-time ML Models more robust in adversarial scenarios: Practical Tips and Monitoring Considerations
  71. Exploring new Business Units in the same role: internal mobility at Nubank
  72. 7 reasons why you should do an internship at Nu
  73. Why work at Nu?
  74. Enhancing engineering workflows with AI: a real-world experience
  75. Career transition stories at Nu: inspirations and learnings
  76. What to Expect in Your First 90 Days at Nubank, as a Business Analyst
  77. 5 tips for those who want to start a career at Nu
  78. How Nubankers are redefining extraordinary: stories of innovation, connection, and impact
  79. How to get an Internship at Nu: Your complete guide
  80. Inside the Nu Internship: Owning your journey, shaping the future
  81. Kickstart your career with Nu México’s Internship Program

2024 43

  1. Unlocking the potential of sequential modeling in fraud prevention: Insights from experts at Nubank
  2. Data-Driven Decisions: The Role of Business Analysts in Nubank’s Data-Driven Culture
  3. Reasons to Work as a Business Analyst at Nubank
  4. Scala Hands-On: a path to build and manage queries in Spark
  5. Empowering Latin America through innovation: Nu highlights at the George UX Conference 2024
  6. Required Skills to be a Business Analyst at Nubank
  7. How to Prepare for a Case Interview? (Part 3)
  8. How to Prepare for a Case Interview? (Part 2)
  9. Crack the case: How the case interview works for the Business Analysis role at Nubank (Part 1)
  10. What does a BA, or Business Analyst, do at Nubank?
  11. How Nubank uses Spark to process data
  12. A deep dive into data roles at Nubank
  13. DexConf 2024: How UX and AI Are Redefining Digital Design
  14. Nubank is the most admired company in the field of Product in Brazil once again
  15. Behavior Modeling with Sequential Architectures: Exploring LSTMs in Machine Learning
  16. From Micro to Macro: Scaling Front-Ends
  17. Deploying Machine Learning models in a Clojure-first environment
  18. The synergy of Product Managers and Designers in the purple world
  19. What’s It like to work at Nubank? Discover the career paths of our professionals
  20. Machine Learning workflows with CPW: From complex pipelines to seamless execution
  21. Making the extraordinary happen: How Fortino, Jorge, and Paula are driven by the challenges around them
  22. Empowering customer support agents with generative AI: interview with Kevin Rossell on Purple MinDS
  23. Making the extraordinary happen: Our team faces challenges and experiments at Nubank
  24. A dynamic world calls for dynamic Product Teams
  25. Make the extraordinary happen: How Isabela, Lucas, and Jacob make Nubank the best job of their lives
  26. Make the Extraordinary Happen: Learn how we put the customer at the center of all our decisions
  27. What You Need to Know to Work at Nubank and Be Part of the Extraordinary Future We Are Building
  28. At Nubank, creating your own place is extraordinary
  29. Journeys in code on ‘The Hammock’ podcast: a conversation with Alex Miller
  30. Data Science career progression
  31. Nu Mexico receives Merco Talento 2024 recognition
  32. Go Time: Building, Management and Execution of Products
  33. Building the bench: Hiring the best product team at Nubank
  34. Enhancing data reliability with Core Datasets
  35. The Art and Science of Product Management: An In-Depth Interview with Jag Duggal
  36. Building a global product powerhouse
  37. Software-driven Data Privacy: an innovative project journey
  38. Why Nubank was listed among Brazil’s LinkedIn Top Companies in 2024
  39. Mastering Databricks performance with Spark UI
  40. AI and Beyond: Insights and Impact from TDC Summit Sao Paulo 2024
  41. Nubank DS & ML Meetup #82: a deep dive into optimization models in practice
  42. Building and Maintaining Internal Tools for DS/ML teams: Lessons Learned
  43. Enabling people with data and tools

2023 60

  1. Nubank launches reward program for ethical hackers in partnership with BugCrowd
  2. The Hammock’s third episode: journeys in code, Clojure, Datomic, and personal growth
  3. Nubank is the most admired company in the Brazilian Product field
  4. MIA Meetup 2023: a meeting for women in generative AI
  5. What is the hiring process like for Software Engineers at Nubank?
  6. Open Finance challenges: how Nubank protects customer data and optimizes operations
  7. NuStories: Tailoring products for fanatical customers in various countries
  8. With AI, Nubank is pioneering a future of inclusive, personalized financial services
  9. From a Small House to a Public Company
  10. Scaling with purpose: insights from the São Paulo Product Community Meetup at Nubank
  11. Large Language Models: What are they, how they work, and how to use them?
  12. The birth of the Dark Mode: a journey into Nubank’s app evolution
  13. NuStories: embracing transitions to own your career journey
  14. De-risking Real-time ML Projects: Addressing Common Failure Modes
  15. Modo Rua: Redefining App Development through User-Centered Iteration
  16. A “Wicked Problem”: UX Research and the continuous search for framing the problem at Nubank
  17. Clojure’s journey at Nubank: a look into the future
  18. Smarter platform: how intelligent suggestions in the Nubank app empower customers
  19. Bridging the gap: Nubank’s commitment in serving the visually impaired
  20. Monitoring vs Observability: Differences and Usages
  21. Personal growth, problem-solving and more: delving deep into The Hammock’s second episode
  22. AI at Nubank: how one of the largest digital banks in the world uses artificial intelligence
  23. Dealing with Train-serve Skew in Real-time ML Models: A Short Guide
  24. Nubank and Olivia: pioneering the future of personalized financial management
  25. Team Management from Engineering Managers perspective
  26. Presenting Precog, Nubank’s Real Time Event AI
  27. Way beyond SHAP: a XAI overview
  28. Designing Shuffle, the internal tool that powers Nubank’s award-winning customer service
  29. Controlinho: Nubank’s answer to democratizing data
  30. Nubank achieves a world record with more than 7 million people participating in NuBolão in one month
  31. Nubank has record profit and almost doubles revenue: understand our results for Q1’2023
  32. Clojure Conj 2023 Highlights
  33. Nubank elected one of the Top 10 Most Influential Brands in the 2023 edition of the Ipsos’ ranking
  34. My transition from native iOS developer to being able to face any challenge
  35. Nu México joins to the list of LinkedIn’s Best Companies 2023
  36. Engineering operational excellence, a case of continuous improvement
  37. Datomic is now available free of licensing fees
  38. A stylish debut: Nubank’s new tech podcast invites Vitor Olivier, the company CTO
  39. Nubank is the financial company that Brazilians trust the most, according to ranking
  40. Engineer Onboarding at Nubank
  41. Nubank is the 5th most innovative company in the world, according to Fast Company
  42. Nubank joins the list of 25 most valuable brands in Brazil
  43. Functional programming with Clojure: why and how does Nubank use it and scale so well?
  44. How decision-making works at Nubank
  45. A Nu way of guidance: Meet the Nu Brand System
  46. How we have been running a Data Science Journal Club at Nubank since 2019
  47. Nubank is ranked the best company to work with Data in Latin America
  48. Clojure turns 15: Nubank’s webseries explores the origins and future of this programming language
  49. Building products customers love at Nubank
  50. A new look at personas: how UX combined with Data can help in the product funnel
  51. How we created Tabs: a new UI for a new financial experience
  52. About fathers and daughters: my experience with Nubank’s parental leave
  53. What is it like being a Product Operations at Nubank?
  54. Leveraging Datomic query-stats to Optimize Clause Ordering
  55. Design experiences based on storytelling: Nubank’s framework
  56. Backend Driven Content: why we developed a Server Driven UI framework at Nubank
  57. Global expansion of Machine Learning Models: how to distribute them as software products?
  58. Get to know Nubank’s main headquarters in Pinheiros, Sao Paulo/Brazil
  59. What is it like being a Product Manager at Nubank?
  60. From Customer Service to Software Engineer: how Nubank enabled me to make a career transition in 2 years

2022 55

  1. NuBolão: How we built Nubank’s first social feature in less than six months
  2. Automatic retraining for machine learning models: tips and lessons learned
  3. What is functional programming and how do we use that technology at Nubank?
  4. What is It like being a Product Designer at Nubank?
  5. Best Practices for Real-time Machine Learning: Alerting
  6. What is the hiring process like for Product Managers at Nubank?
  7. What is it like being an Analytics Engineer at Nubank?
  8. What is it like being a Content Designer at Nubank?
  9. A mind-blowing conversation with James Gosling, Java’s father
  10. Nu Holdings results for Q3 2022: growing strong and profitable
  11. Women Leaders Who Design
  12. What is it like being an Information Security Awareness Engineer at Nubank?
  13. Nubank opens another office in Brazil, the third one in São Paulo
  14. How Nubank launched ‘Caixinhas’
  15. A gentle and practical introduction to A/B tests
  16. Nubank is one of the most attractive companies for Brazilian students to work at in 2022
  17. 8 tips to solve software engineering technical exercise for Nubank’s hiring process
  18. Clojure 15th Anniversary: A Retrospective
  19. What is it like to work in Nubank’s Research Department?
  20. Building Open Finance at Nubank: a view behind the scenes
  21. Real-time machine learning models in real life
  22. What is it like to have a career at Nubank’s Information Security Team (Infosec)?
  23. What is it like being a Product Marketing Manager at Nubank?
  24. Interview: meet Adrian Cockcroft, Nubank’s new Tech Advisor
  25. 9 reasons for women to build their career in the field of Engineering at Nubank
  26. Crushing your interviews for Data Science and Machine Learning Engineering roles: 8 practical tips
  27. How does parental leave work at Nubank?
  28. What is it like to be an Associate Product Manager at Nubank?
  29. What is it like to have a career at Nubank’s Design team?
  30. Nu Holdings Ltd. Reports Second Quarter 2022 Financial Results
  31. Nu Holdings results for Q2 2022: on our way towards becoming the largest digital platform in Latin America
  32. What made my eyes shine towards joining Nubank in Berlin
  33. Anitta is now Nubank’s Global Brand Ambassador
  34. Nubank Cripto: 1 million clients have already bought cryptocurrencies
  35. Nu Way of Working: Nubank’s hybrid work model
  36. How to create a security strategy based on customer’s trust
  37. Nubank’s Engineering Principles: interview with Lindsey Bleimes
  38. Nubank’s Engineering Principles: questions from a CTO to a CEO
  39. Nubank’s Engineering Principles: interview with Edward Wible
  40. Nubank announces hires to strengthen tech team
  41. David Vélez, CEO of Nubank, joins the TIME100 list of most influential people in the world
  42. Nubank opens applications for the 2nd edition of We Code
  43. Nu Holdings Ltd. Reports First Quarter 2022 Financial Results
  44. Data Scientist x Machine Learning Engineer Roles: How are they different? How are they alike?
  45. Artificial intelligence applied to financial services
  46. Reinventing IT & Cyber Risk Management in the financial market
  47. Nubank elected best bank in Brazil and one of the bests in the world best banks in Forbes’ ranking
  48. Nubank strengthens its international operations with a credit line of US$650 million to accelerate growth in Mexico and Colombia
  49. TIME100: Nubank named one of the most influential companies in the world for second year in a row
  50. TGIF: Analytics Engineering’s ritual to boost creativity at Nubank
  51. How to build and develop an engineering culture?
  52. Nu Holdings Ltd. Reports Fourth Quarter and Full Year 2021 Financial Results
  53. Yes, She Codes: Nubank opens applications for the 4th edition of the software engineers hiring program
  54. People at the center of the strategy: the first step to innovation
  55. Nubank joins the UN Global Compact

2021 36

  1. The Spark Of Our Foundation: a letter from our founder and co-founders
  2. Nubank is an official FIFA World Cup™ supporter: soon, we’ll have more surprises for our customers
  3. NuLab Salvador: Nubank prepares to inaugurate technology and customer experience hub
  4. Nu Game Changers 5: Engineering and Data Science in Product Development
  5. Nu Game Changers 4: Experiences that delight beyond products
  6. Nu Announces Confidential Submission of Draft Registration Statement for Proposed Initial Public Offering
  7. Nu Game Changers 3: the role of technology in Nubank products
  8. Nu Game Changers 2: humanized customer service and WOWs that made history
  9. Nu Game Changers 1: how Nubank employees are part of our story
  10. Get to know the Convergence Framework, a way to organize your actions as an Agilist
  11. Nubank enhances leadership hiring in different countries
  12. What is the hiring process like for Analytics Engineers at Nubank?
  13. Why We Killed Our End-to-End Test Suite
  14. Nubank and Creditas announce partnership
  15. Yes, She Codes! Nubank’s software engineering women’s hiring program
  16. How we deal with technical incidents
  17. Meet the Personal Financial Management team
  18. Machine Learning Model Monitoring – 9 Tips From the Trenches
  19. Designing Nubank Ultravioleta: purple, metalic and premium
  20. Scaling data analytics with software engineering best practices
  21. Beyond prediction machines
  22. Nubank closes a second extension to its Series G round raising it to US$1.15B
  23. Nubank raises US$500 million from Berkshire Hathaway
  24. A look into Nubank’s tech hub in Berlin
  25. Nubank appoints Arturo Nuñez as Chief Marketing Officer
  26. Nubank Credit Card: from Product to Platform mindset
  27. Nubank’s brand new face: get to know our new logo
  28. Nubank appoints new board of directors members
  29. Nubank recognized by TIME as one of the most influential companies in the world
  30. Technical Writing and the value of documentation
  31. Forbes: Nubank is elected the best financial institution in Brazil for the third consecutive year
  32. How we scale our data platform efficiently and reliably
  33. Matt Swann is Nubank’s new CTO
  34. Nubank agrees to have 50% of the leadership made up of women
  35. Scaling Nubank’s mobile development with Flutter
  36. Nubank raises US$400 million in a Series G investment round

2020 35

  1. Overcoming the Invisible Interface
  2. Nubank in Spanish: a UX Writing tale
  3. Coffee Break and MegaDemo: what the meetings with the entire Nubank team are like
  4. The value of canonicity
  5. Behind the scenes: get to know Nubank headquarters in São Paulo and beyond
  6. Nubank takes next step in international expansion and launches in Colombia
  7. Reinventing Internal Audit by embracing technology
  8. “We want to be remembered not only for the revolution we have created but for the way we got there”
  9. Nubank neutralizes its carbon emissions and achieves net-zero target
  10. Nubank’s financial statement: twice as many customers and BRL 19 billion cash
  11. Nubank acquires digital broker Easynvest, the leading investment platform in Brazil
  12. The Four Pillars of Customer Service at Nubank
  13. What is Nubank? A company that is always on the side of their customers
  14. 6 principles that build our Data Scientists’ code
  15. Nubank, recognized by CB Insights as one of the fast-growing fintech startups
  16. Product Design Hacks: A collection of tips and tricks I’ve learned from the design team at Nubank
  17. Nubank’s co-founder is recognized by Fortune as one of the world’s most influential leaders under 40 years old
  18. Joining Nubank: how we transformed our recruiting process
  19. PRIVACY NOTICE FOR CANDIDATES
  20. What is it like being a Product Operations (POps) at Nubank?
  21. More productive data analytics with Data Quality Governance
  22. How I redesigned my team’s calendar to be more productive
  23. Going agile: do less to deliver more
  24. How Nu values and culture have fundamentally shaped the products we create
  25. Nubank acquires US company Cognitect, the team behind Clojure and Datomic
  26. Cognitect, creator of Clojure and Datomic, is now part of Nubank
  27. Nubank and Cognitect: a personal perspective
  28. Nubank Data Analysts are now called Analytics Engineers
  29. Nubank reaches 25 million customers
  30. How we are keeping Nubank’s culture alive while working from home
  31. “We have the privilege of being able to help others go through this period”
  32. Tools to run a UX Research synthesis workshop remotely
  33. A digital pine forest: the evergreen cache
  34. The Benefits of Writing, especially as a Designer
  35. Tech perspectives behind Nubank’s first acquisition deal

2019 14

  1. How does the hiring process for Data Science at Nubank work?
  2. Introducing fklearn: Nubank’s machine learning library (Part II)
  3. Simplicity: working with Clojure at Nubank
  4. How we do On-Call Rotations at Nubank
  5. What does Nubank culture have to do with customer focus?
  6. Why we think Flutter will help us scale mobile development at Nubank
  7. How product development works at Nubank?
  8. How skateboarding influences the way I work
  9. Microservices at Nubank, an overview
  10. Nubank raises USD 400 M in investment round led by TCV
  11. My first month as UX Researcher at Nubank’s Design team
  12. Introducing fklearn: Nubank’s machine learning library (Part I)
  13. Product Managers: what they do and why we need them
  14. Why we have a research plan at Nubank

2018 9

  1. Growing mobile capabilities at Nubank
  2. Listening to user feedback in an engaged community
  3. Launching Nubank’s digital bank account
  4. Behind the scenes of Nubank’s Customer Support
  5. Organizing the largest Machine Learning Meetup group in LatAm
  6. Getting started at Nubank: a designer’s tale
  7. Designing a multi-product experience
  8. How we designed Nubank’s Bank Account — Part I
  9. How we designed Nubank’s Bank Account — Part II

2017 6

  1. Unboxing experience: the story behind Nubank’s welcome kit
  2. What is the hiring process like for Designers at Nubank?
  3. Building the new mobile app header
  4. First steps for better UX research
  5. Why to choose a fuzzy design process at Nubank?
  6. Design principles at Nubank