Insight Global are seeking a Senior Back-End Engineer for a leading global financial technology organisation specialising in international payments, foreign exchange, and multi-currency account solutions. The successful candidate will play a key role in designing, developing, and supporting scalable backend services that power payment processing, onboarding, compliance workflows, settlement functions, and other critical financial platform capabilities. Working closely with product, compliance, operations, architecture, and engineering teams, you will drive technical solutions from initial design through deployment and production support while helping modernise existing systems and services.

Design and own backend services supporting payments, onboarding, KYC, KYB, foreign exchange, settlement, and related financial platform functions. Lead technical delivery from requirements gathering and solution design through deployment and production support. Own service reliability, observability, monitoring, incident response, and operational excellence.

Utilise AI-assisted development tools throughout the software development lifecycle to improve productivity, testing, and delivery outcomes. Bachelor's degree in Computer Science, Software Engineering, or a related technical discipline, or equivalent practical experience.



Strong experience developing and supporting production-grade backend applications.

Strong experience with C# and .NET.

Experience with Java, Kotlin, or Go will also be considered. Strong understanding of SQL and relational database design principles.

Experience writing, maintaining, and supporting automated tests. Daily use of AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code, or similar technologies. Hands-on experience deploying and supporting applications within AWS environments.

Experience working with CI/CD pipelines and modern cloud deployment practices. Knowledge of AWS services including SQS, DynamoDB, S3, ECS, and Lambda. Knowledge of caching technologies such as Redis or Memcached.

Experience using Jira, Confluence, and related collaboration tools.

Experience with API testing tools such as Postman or Bruno.

Experience incorporating AI-assisted testing, automation, and software development practices into day-to-day workflows. If you are passionate about building highly scalable backend systems, working within a modern cloud-native environment, and contributing to the future of general payments technology, we would love to hear from you.

📌 Senior Backend Engineer .Net (Madrid)
🏢 Insight Global
📍 Madrid