Spain | Remote | Senior Engineering Opportunity

MaxIT Consulting – Max Corporate Group is looking for a Senior Full-Stack Engineer, Consumer Fintech to join a fast-growing New York fintech company building banking and payment products for US prediction markets and regulated gaming.

The company develops consumer-facing financial products covering account funding, cards, onboarding, identity verification, KYC, and real-time balances on top of its own payments and settlement infrastructure.

Its platform has already processed more than USD 2 billion and continues to scale rapidly across both product and engineering.

About the Role

This is a senior product-engineering position for someone who has already shipped consumer financial applications end to end.

You will own complete product experiences, from customer-facing flows through backend services and production operation. Relevant experience includes digital banking, payments, trading, cards, onboarding, KYC, and other regulated consumer-finance products.

The client has not defined a mandatory technology stack for the search.



The priority is identifying strong senior engineers with genuine financial-services product experience rather than optimizing for a particular programming language or frontend framework.

Key Responsibilities
- Build and operate consumer-facing financial products end to end.
- Develop onboarding, account-opening, identity-verification, and KYC workflows.
- Build customer experiences around cards, payments, balances, funding, and financial transactions.
- Develop backend services supporting consumer financial products.
- Own features from product and technical design through deployment and production operation.
- Work closely with product stakeholders to translate complex financial workflows into simple user experiences.
- Ensure reliability, security, and correctness across regulated financial processes.
- Operate independently within a small, distributed engineering team.
- Contribute to a

📌 Senior Full-Stack Engineer, Consumer Fintech (Madrid)
🏢 Max Corporate Group
📍 Madrid