Senior Backend Engineer

As a Senior Backend Engineer, you play a crucial role in designing, developing, and maintaining scalable, high-performance backend systems that support fundcraft’s platform. You work closely with cross-functional departments, including frontend engineers and product managers, to deliver robust backend solutions that align with business objectives. Your focus is on hands-on development, ensuring the reliability, security, and maintainability of the platform, while addressing complex technical challenges in production.

This is a position based in Spain and reporting directly to the Lead Backend Engineer.

• →Implementing scalable, high-performance features and integrations between services in a high-demand system, ensuring reliability, efficiency, and seamless user experience.
• →Develop, implement, and maintain end to end solutions using technologies such as Python, Django, DRF, FastAPI, Docker and AWS Cloud. 
• →Use AI tools like Cursor and Claude Code to help you write the code.
• →Write automated unit tests and integration tests to validate backend functionality and ensure code quality and reliability. 
• →Maintain comprehensive documentation of backend systems, APIs, and processes to facilitate knowledge transfer and ensure code maintainability. 
• →Share technical insights and best practices with unit members, and contribute to the continuous improvement of engineering processes and workflows.
• →Proactively provide technical knowledge and support to junior and other senior backend engineers.
• →Work closely with DevOps engineers, product managers, and other stakeholders to understand requirements and deliver high-quality solutions that meet business objectives and user needs. 
• →Communicate effectively with other members, providing regular updates on project status, challenges, and progress.

• Develop scalable, high-performance backend systems that support business objectives and platform needs.
• Collaborate with cross-functional departments to ensure seamless integration of backend solutions with frontend applications.
• Optimise APIs for performance, scalability, and security, ensuring they meet the technical requirements of various applications.
• Contribute to code quality by participating in code reviews and adhering to best practices in software development.
• Mentor mid and junior engineers by providing guidance, sharing technical insights, and supporting their growth.
• Maintain up-to-date documentation of backend systems, APIs, and processes to ensure code maintainability and knowledge sharing.