Blockchain Security Engineer

São PauloSão PauloSao PauloBrazilSouth America

About Nubank

Nubank was founded in 2013 to free people from a bureaucratic, slow and inefficient financial system. Since then, through innovative technology and outstanding customer service, the company has been redefining people's relationships with money across Latin America. With operations in Brazil, Mexico, and Colombia, Nubank is today one of the largest digital banking platforms and technology-leading companies in the world.

Today, Nubank is a global company, with offices in São Paulo (Brazil), Mexico City (Mexico), Buenos Aires (Argentina), Bogotá (Colombia), Durham (United States), and Berlin (Germany). It was founded in 2013 in Sao Paulo, by Colombian David Vélez, and cofounded by Brazilian Cristina Junqueira and American Edward Wible. For more information, visit

We believe in:

  • Strong and diverse teams;
  • Enthusiasm for building and delivering new features and products;
  • Capacity to keep learning new things while constantly improving what we are already good at;
  • Collaborating efficiently to ship quality service/products.

A bit more about this position:

We're creating a Blockchain security team. Nubank has started getting into the Crypto world and we're looking for a Senior Specialist to join our team and help secure future developments and initiatives.

You will fit well if you have: 

  • Precious experience working with a blockchain related project (CEX, DEX or a specific cryptocurrency)
  • Cryptocurrencies engineering and implementation knowledge (how do they work, which consensus protocols they use, historical problems they faced).
  • Blockchain infrastructure security knowledge (how to secure infrastructure running a blockchain project, permissions associated with each node, key management strategies, etc...).
  • Smart contract programming  knowledge in at least one language (as well as smart contract security code review knowledge)
  • Historical knowledge about security problems cryptocurrencies faced in general, biggest exploits that occurred, forking strategies.Knowledge about liquidity pools, creation and protecting against related attacks..
  • General knowledge about different crypto related technologies (minting, staking, lending, nft's, atomic swaps, layer 2 networks, etc...)


  • Health, dental and life insurance
  • Meal allowance
  • Transportation assistance
  • 30 days of paid vacation
  • Equity at Nubank
  • Parking partnership - discounted parking in our office
  • Free bike parking with showers available
  • NuCare - Our mental health and wellness assistance program
  • NuLanguage - Our language learning program
  • Gympass partnership
  • Extended maternity and paternity Leaves  
  • Child care allowance
  • ‘Espaço Feijão’- Private nursing and breastfeeding spaces in our buildings
  • Onsite Health Center - Medical support for every Nubanker in our office

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