Javascript Web3 Jobs in Madrid, Spain

Role : Senior Back End Developer

Location: Miami, Madrid or remote

Type of employment: Full time or Contractor

Responsibilities:

• Architect and Manage infrastructure required to fulfill our mission
• Solve technical problems involving back-end software engineering and user interface development
• Ensure system availability and security
• Contribute to technical strategies, vision, and architecture
• Work in a truly agile environment, able to gather and understand requirements, propose solutions for those and build them
• Design and implement APIs
• Create and Improve Database Schema
• Maintain the product and automation, including tests and operations
• Comfortable Learning Our Tech stack:
  • Next.js
  • TypeScript
  • Ethers.js
  • Solana (web3.js)
  • MongoDB
  • AWS

Education/Experience:

• Bachelor’s degree in Computer Science (not required) or equivalent knowledge and skills/ industry experience
• 4+ years of professional experience developing production systems
• Advanced knowledge of, at least, one modern programming language such as Javascript, Java, Python, Scala, Ruby, etc.
• Worked with NoSQL databases
• Experience working with serverless architecture
• Experience with Cloud Providers (AWS, GCP, Azure, etc…)
• API Design

Preferred experience (not required):

• High level understanding of Crypto Currency
• Experience with Solana or EVM based smart contracts
• Has made or purchased NFTs before
• Have relevant side projects
• Distributed System Experience
• Docker and K8s Experience
• Experience with software engineering best practices, such as design and code reviews, source control management, or build, testing and operations processes