Senior Backend Developer

About this role

We are seeking a Senior Backend Developer with a minimum of 10 years of professional experience building and scaling backend systems. This role requires strong communication skills and technical depth in backend architecture, performance-driven engineering, and secure, maintainable code practices. The ideal candidate will be comfortable working in a test-driven, AI-assisted development environment and will play a key role in shaping the reliability and scalability of our backend systems
Your role

• Architect and design scalable backend systems and services with a focus on performance, maintainability, and security.
• Leverage AI-driven development tools (Claude Code, Codex, Gemini CLI, or similar) to accelerate development, improve code quality, and enhance team productivity.
• Collaborate with product managers, frontend developers, and other stakeholders to deliver business-critical features.
• Translate business requirements to AI agent ready technical specifications
• Review PR’s from peer developers and AI agents
• Drive development practices that emphasize test-driven development (TDD) and high-quality, automated test coverage.
• Build, optimize, and maintain relational, key-value and time-series databases ensuring efficient queries, schema design, and scalability.
• Apply security best practices across the stack, ensuring robust protection against vulnerabilities and compliance with standards.
• Monitor and improve system performance (latency, throughput, scalability, resource efficiency).
• Mentor and support other developers, fostering a culture of excellence, learning, and innovation.

Your profile

• 10+ years of professional backend development experience.
• Excellent communication skills in English (Dutch is a strong plus).
• Proven expertise in backend architecture and system design.
• Strong proficiency in Golang; experience with Rust is a strong plus.
• Familiarity and experience with AI-assisted development tools (Claude Code, Codex, Gem...