Full-stack .Net Developer

IntellectEU is an international technology company focused on digital finance and emerging technologies.

At IntellectEU we are on a mission to become the top-of-mind fintech company.

We give rising talent and industry veterans the space to explore, launch ideas, and collaborate closely with our clients.

Over the past two decades, we have earned our expertise in financial technology, executing on hundreds of complex integrations and co-creating new digital asset platforms alongside our clients.

Location - London (UK), Krakow (Poland).

Type of cooperation - hybrid (2-3 days in the office)

• Implement and operationalize core backend and frontend services with fault tolerance, security, and scalability.
• Build API-first services integrating blockchain networks, third-party provider solutions, and internal systems with strong consistency guarantees.
• Implement secure service communications using cryptographic signatures, key management, and zero-trust architecture principles.
• Operationalize event-driven systems using Apache Kafka and asynchronous messaging patterns.
• Implement robust concurrent and asynchronous processing patterns for multi-threaded workloads.
• Integrate Web3 SDKs and libraries for on-chain interactions, transaction signing, and state monitoring.
• Produce and maintain high test coverage via automated unit, integration, and functional testing frameworks within CI/CD pipelines.
• Produce and maintain technical documentation, API specifications, and operational runbooks.

• Strong knowledge of .NET (C#).
• Extensive hands-on proficiency in TypeScript, Node.js, and/or NestJS.
• Experience designing and consuming REST APIs and/or event-driven architectures.
• Good understanding of the software development life cycle (SDLC) and Agile methodologies.