Full Stack Developer (remote)

Crossmint is the leading platform for companies to build onchain. We provide all the infrastructure necessary to build applications scalable to millions of consumers, while making blockchain technology invisible to end users.

Crossmint completely removes the complexity of blockchain for both companies and users. Companies don’t need to have blockchain engineers, hold cryptocurrencies, and can leverage a one-stop-shop, instead of orchestrating many different vendors, which often results in disjointed consumer experiences, higher costs, and slower go-to-market. For users, the experience is indistinguishable from that of the traditional web — replacing passphrases with biometrics and eliminating gas fees and other friction points.

Our suite of products includes wallets-as-a-service, tokenization, payments, onchain credentials, and other essential building blocks for companies to build anything onchain.

Supporting 40+ different blockchains, Crossmint makes it easy for companies to leverage blockchain rails and create experiences accessible by mainstream users.

Location We have offices in Madrid (Gran Vía), and we are also open to a full remote setting from Spain.

Type of employment Full-time, indefinite contract.

Responsibilities As a Full-stack Engineer for the Developer Console team at Crossmint, you will play a crucial role in building and maintaining the financial infrastructure that powers our ecosystem. Write high-quality code : correct, secure, performant, maintainable.

Develop and optimize billing workflows : Design, implement, and improve the billing system that manages subscription plans, processes payments, and integrates with Stripe for project fund management.

Architect and maintain financial data systems : Run your projects end to end : from conceptualization to shipping and beyond.

Perform On-Call duties : participate in paid on-call shifts (once or twice a quarter).

Excellent Communication Skills : Demonstrate excellent written and spoken English.

Educational Background : Hold a Bachelor’s degree in Computer Science or a related field, or equivalent knowledge and skills with industry experience.

Experience with Stripe or similar payment processors : A strong plus if you have worked with billing integrations and payment flows.

Daily stipend for commuting to the office and / or for meals.

Medical & Dental coverage.

Ship high quality work fast.