Senior Full-Stack Developer (Developer Experience)

About Crossmint

At Crossmint, we are creating the infrastructure layer to make NFTs mainstream. We are trusted by 5,000+ creators and marketplaces, like Magic Eden, David Guetta, Sacramento Kings and Tomorrowland. Our core product is the leading fiat on-ramp for NFTs. It enables anyone to buy them in 1 minute, even if they don't have wallets or crypto. ****Check it out here! We have a broader suite of NFT APIs and developer tools for enterprises, including minting APIs, and custodial wallets as a service.

Location

Madrid, Spain

Type of employment

Full-time

Responsibilities

• Develop the software and infrastructure required to fulfill our mission
• Solve technical problems involving back-end software engineering and user interface development
• 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 build software that is highly available, performant, scalable, and extensible
• Maintain the product and automation, including tests and operations
• Comfortable Learning Our Tech Stack:
• Node.js and React with Next.js on Vercel, TypeScript, Ethers.js, Solana (web3.js) MongoDB, AWS, Azure, Github Actions and Cypress for CI/CD.

About you

• Excellent written and spoken English
• Bachelor’s degree in Computer Science or related field, or equivalent knowledge and skills and industry experience
• 3-5+ years of professional experience developing production systems
• Advanced knowledge of, at least, one modern programming language such as Javascript, Java, Python, Scala, Ruby, etc.
• Able to do a quarterly, paid on-call shift with 8 consecutive 12 hour days.

Preferred experience:

• Experience with software engineering best practices, such as design and code reviews, source control management, or build, testing and operations processes
• Experience with blockchains (e.g. Bitcoin, Ethereum and other implementations)
• Experience with Solana or EVM based smart contracts
• Have made or purchased NFTs before

Benefits

• We follow location based compensation.
• Flexible PTO
• Company laptop and quarterly allowance for any necessary home equipment
• Company-paid trips for annual off-sites and team bonding
• Flexible work schedule

Our Principles

Move fast, work smart Extreme ownership Be kind