Forward Deployed Engineer (Buenos Aires)

Crossmint is the leading all-in-one stablecoin and wallet infrastructure platform, trusted by more than 40,000 clients including MoneyGram, Western Union, and Paga, as well as nation states like the Marshall Islands. As a Forward Deployed Engineer, you will work directly with Crossmint's most important enterprise clients to design, build, and deploy custom solutions across programmable wallets, tokenization, stablecoin payments, and agentic commerce. You will own technical engagements from the first conversation through production, working closely with customers to solve hard problems and turning successful deployments into reusable platform components.

• Build custom integrations and workflows on top of Crossmint's wallets, payments, and tokenization APIs
• Create proofs of concept, demos, and scripts that accelerate client adoption and inform product direction
• Manage deployments, observability, and performance tuning for live Crossmint implementations
• Diagnose and fix complex production issues across client infrastructure, blockchain networks, and third-party providers
• Partner with Product, Solutions, and Platform Engineering to convert successful deployments into reusable SDKs or APIs
• Guide client engineering teams through code reviews, technical walkthroughs, and best-practice documentation

• 5+ years of software or solutions engineering with enterprise deployments or fintech/Web3 infrastructure
• Backend services or developer-facing integrations in TypeScript, Python, Go, or similar
• Designing and debugging REST APIs, authentication flows, and cloud-native applications
• Working knowledge of blockchain technologies: Ethereum, Solana, Stellar, smart wallets, or smart contracts
• Ability to explain complex technical concepts clearly to engineers and non-technical stakeholders
• Fluent professional English required; based in or able to work in Buenos Aires