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iobuilders21 / jun

Frontend Developer/Architect

Remoto (Sede en Madrid)
2 - 10 años

Are you interested in helping companies revolutionize their industries through the benefits of Decentralized Logging Technologies (DLT) and Blockchain?

We see blockchain and smart contracts as meta-technology with enormous potential and real applicability. Based on our experience in banking, regulation, product management, and software development, we will try to shape the future.

"The future is here. It's just not evenly distributed yet." William Gibson

We are looking for good people who, firstly, fit our culture and mindset, and secondly, bring their experience and expertise to our team. 

These are the skills we are looking for:

  • Minimum 8 years of experience in Frontend development.
  • Experience in SPA development. React, Vue.js, Angular, NodeJs, etc.
  • You are or are willing to be, a polyglot of languages, due to the importance of getting the best of different tech stacks to create good solutions.
  • Proven experience in the design and development of complex architectures and system integration. Experience in managing high-load platforms is a plus.
  • Strong experience in plain vanilla JavaScript / ES6.
  • Agile development experience with Lean, Scrum, XP, etc.
  • Your attitude will determine our altitude. Building new ideas, based on complex technologies and industries, will be challenging. The team is the key to success and your ideas, your positivity, and your group approach will make the difference.
  • We are interested in your knowledge, but your skills are more important to us. There are a lot of technologies... How you approach and use them will make the difference. We try to get the right balance between attitude and aptitude.
  • Ability to research and learn. The blockchain space is very new and evolving very fast. Staying on top of trends is key, to helping us make the right decisions.
  • Distributed ledger technology and Dapp development experience are very welcome. ... But don't worry if you don't have a clue. We'll teach you what we know, and we'll learn together. Ethereum, Quorum, and Hyperledger will be our base platforms.
  • You believe that understanding the business domain, the language, and the opportunities is key to defining the best solutions.


If you fit these specs, you are ready to be part of the team! But if you can bring one or several of the following as a plus, what are you waiting to work with us?

  • You are passionate about automation.
  • Aspiring Software Craftsman.
  • TDD practitioner.
  • Fintech, Regtech proven experience.
  • ERC standards knowledge.
  • PWA.
  • Mobile development experience. (React native).
  • NSwag usage experience.
  • Redux has proven experience.


You already know what we are searching for. Lets explain what we offer:

  • Challenging projects and environment.
  • Innovation and build new business with your own hands.
  • Flat organization and short decision paths.
  • Flexible working hours.
  • Remote working (Based on team needs).Remote work financial aid. We are challenge oriented.
  • Competitive Salary
  • Social benefits: Flexible Payment Plan, medical insurance, and others.
  • 25 vacation days.
  • 2 free days for conference/courses + Budget.
Horario flexible
Horario de entrada y salida flexibles, libertad para gestionar asuntos personales o familiares.
Seguro médico
La empresa ofrece o financia un seguro de salud, además del reglamentario.
Cursos y certificaciones
La empresa financia cursos de formación relacionados con las funciones del puesto.
Recomienda un amigo y te recompensamos
Si recomiendas un amigo, contacto o compañero para esta oferta, y es contratado, te llevas 1.000€