Senior Java/Kotlin/Node.js Backend Developer – Developer Platform

The role is for a senior backend developer at a leading financial institution working on a long-term, multi-year project to develop a cutting-edge internal developer platform, aiming to revolutionize enterprise-scale project delivery and hosting.

• At least 5 years of professional backend development experience in enterprise or platform environments
• Strong proficiency in Java, Kotlin, or Node.js (at least one mandatory)
• Excellent communication skills for collaboration with senior management and large developer communities
• Self-driven and able to work independently in a hybrid setting
• Familiarity with building or working on developer platforms or internal tooling is advantageous
• Experience working in internationally distributed teams

Nice to have:

• Hands-on experience with platforms such as Vercel, Heroku, or Coolify
• Background in DevOps or infrastructure-as-a-service (IaaS) solutions

• Design, develop, and maintain backend services and platform components ensuring robustness and scalability
• Collaborate with senior management and large developer teams to define platform strategy and drive delivery
• Contribute to architectural decisions and establish platform standards
• Engage with stakeholders at all levels to gather requirements and communicate technical progress
• Work across multiple languages and technical domains applying best practices in development and DevOps
• Participate in code reviews, testing, and documentation
• Maintain focus on security, performance, and maintainability of platform components

Only candidates with an existing legal right to work in the European Union will be considered for this role.