Senior Backend Developer (Fintech, Remote from Denmark)

Job summary

This role involves contributing to a rapidly growing financial technology platform by designing and optimizing backend services that support a global trading ecosystem. The position focuses on high-performance, secure, and scalable systems for real-time trading and API services, combining coding with architectural decision-making and collaboration across teams.

Qualifications

• Strong proficiency in Node.js and JavaScript development.
• Experience with microservices architecture and backend system design.
• Solid understanding of database interactions (MySQL, MongoDB) and data management.
• Familiarity with high-availability concepts and scalable system design.
• Knowledge of security practices for backend systems.
• Ability to learn new technologies quickly and adapt to a fast-paced environment.
• Bonus skills: blockchain integration, Ruby, Rust, C++, message queues (Redis), caches, and job queues.

Responsibilities

Benefits

• Develop and maintain backend components for trading applications, APIs, and blockchain integrations.
• Implement new products, features, and enhancements using agile methodologies, ensuring high-quality user experiences.
• Ensure scalability and performance of backend services to support growing user activity.
• Build and maintain secure backend systems, adhering to best practices and high security standards.
• Collaborate with frontend engineers, DevOps, and security teams to integrate and optimize services.
• Troubleshoot and resolve complex technical issues, contributing to platform stability and reliability.
• Participate in architectural decisions and contribute to long-term backend strategy.
• Flexible remote-friendly work culture and autonomy.
• Competitive compensation and career growth opportunities.
• Mentorship, learning, and knowledge-sharing environment.
• Supportive team and collaborative culture.
• Opportunities for team-building activities, both online and in-person.
• Direct impact on global technology and financial innovation.