Spain | Remote | Senior Engineering Opportunity MaxIT
Consulting – Max Corporate Group is looking for a Senior Backend
Engineer, Payments and Ledger to join a fast-growing New York
fintech company building banking, payments, and settlement
infrastructure for US prediction markets and regulated gaming. The
company operates financial infrastructure that has already
processed more than USD 2 billion, supporting accounts, card
products, payment rails, and real-time settlement. The engineering
organization is scaling rapidly and is looking for senior
individual contributors with substantial financial-services
experience. About the Role This is a senior backend engineering
position focused on systems that move, reconcile, and maintain
money in production. You will work on financial infrastructure
where correctness, reliability, data integrity, and real-time
processing are fundamental. The adecuado candidate has already built
and operated systems inside a payments company, bank, neobank,
brokerage, trading platform, or comparable financial product
organization.



The specific technology stack is not the primary
selection criterion. Deep financial-services experience,
distributed-systems knowledge, and ownership of production systems
are more important than expertise in one particular programming
language. Key Responsibilities Design, build, and operate backend
systems supporting accounts, payments, balances, cards, and
settlement flows. Develop highly reliable services for systems that
move money in production. Build and maintain distributed and
event-driven architectures. Design robust ledger-style data models
and transaction workflows. Work extensively with SQL, relational
databases, reconciliation, and consistency requirements. Own
backend services from technical design through deployment,
monitoring, and production operation. Investigate complex
production issues involving financial state, event processing, and
transaction integrity. Collaborate with product and engineering

📌 Senior Backend Engineer, Payments and Ledger (Madrid)
🏢 MaxIT Consulting - Max Corporate Group
📍 Madrid