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# Full Stack Developer Ai

- **Company:** Belmoney
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, C Sharp (Programming Language), Cloud Computing, Code Review, Continuous Integration, DevOps, Distributed Systems, Next.js, TypeScript, ReactJS, Backend, Event Driven Architecture, Apache Kafka, Front End Software Development, Amazon Simple Queue Service (SQS)
- **Published:** August 26, 2026
- **Apply:** https://www.buscojobs.com.es/full-stack-developer-ai-en-madrid-ID-368913130

## About the Role

We're looking for a Middle/Senior Software Engineer to join our product team.What you'll do- Build and maintain fullstack solutions spanning frontend and backend- Design and implement backend services (APIs, payment provider integrations, event processing)- Work with cloud infrastructure to build resilient, scalable systems- Contribute to product architecture decisions, participate in code reviews, mentor junior engineers- Collaborate closely with product, DevOps, and compliance teams (KYC/AML, PSP flows)Our stack- Frontend: React, Next.js, TypeScript- Backend: C# (.NET)- Infrastructure: AWS (SQS, SNS, Lambda, EventBridge), DockerWhat we're looking for- 4+ years of commercial experience in fullstack/backend development- Strong command of C#/.
NET and solid frontend experience with TypeScript/React- Experience with cloud platforms (AWS preferred)- Solid understanding of distributed systems design principles- English proficient enough for daily work communicationNice to have- Knowledge of Ukrainian and/or Russian is a strong plus - it will help with communication across part of our team and customer base- Experience in fintech, payments, or banking- Experience with event-driven architecture (SQS/SNS/Kafka)- Familiarity with DevOps practices (CI/CD, IaC)-Experience with AI

## Description

Middle/Senior Software Engineer - BelmoneyBelmoney is a Belgian fintech company operating in the international money transfer (remittance) space.We're looking for a Middle/Senior Software Engineer to join our product team.What you'll do- Build and maintain fullstack solutions spanning frontend and backend- Design and implement backend services (APIs, payment provider integrations, event processing)- Work with cloud infrastructure to build resilient, scalable systems- Contribute to product architecture decisions, participate in code reviews, mentor junior engineers- Collaborate closely with product, DevOps, and compliance teams (KYC/AML, PSP flows)Our stack- Frontend: React, Next.js, TypeScript- Backend: C# (.NET)- Infrastructure: AWS (SQS, SNS, Lambda, EventBridge), DockerWhat we're looking for- 4+ years of commercial experience in fullstack/backend development- Strong command of C#/.NET and solid frontend experience with TypeScript/React- Experience with cloud platforms (AWS preferred)- Solid understanding of distributed systems design principles- English proficient enough for daily work communicationNice to have- Knowledge of Ukrainian and/or Russian is a strong plus - it will help with communication across part of our team and customer base- Experience in fintech, payments, or banking- Experience with event-driven architecture (SQS/SNS/Kafka)- Familiarity with DevOps practices (CI/CD, IaC)-Experience with AI


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