Java Kotlin Developer (Ai)

TL;DR

Java Kotlin Developer (AI): Building backend services in Kotlin for a data-driven energy-tech platform with an accent on event-driven architectures and AI-assisted development. Focus on creating concrete prototypes, experimenting with architectures, and evolving valuable solutions into scalable systems.

Location: Remote-first (4–5 days from home) with access to a modern office in Utrecht; once per week engineers come together in Utrecht.

Salary: €65.000 – €86.000, depending on experience.

Company

Medium-sized technology company building a digital platform that supports a more flexible and sustainable energy system.

What you will do

• Design and build backend services in Kotlin, starting with lightweight POCs.
• Work on event-driven services in Kafka processing continuous data streams.
• Translate vague ideas into concrete prototypes together with senior engineers and product stakeholders.
• Experiment with architectures, tools, and AI-assisted workflows to see what works best.

Requirements

• 2+ years of professional experience as a backend software engineer.
• Experience with Kotlin or Java and modern backend development practices.
• Interest in event-driven or service-oriented architectures.
• Solid understanding AI-Driven development and tools like Claude.
• Curiosity, willingness to experiment, and eagerness to learn.
• Comfortable working in distributed teams.

Nice to have

• Experience with Kafka or streaming technologies is a plus.
• Exposure to cloud environments (AWS or similar) is a plus.

Culture & Benefits

• Remote-first setup with flexible working hours.
• Company stock options.
• Employer-paid pension contribution.
• Unlimited paid time off.
• Possibility to work aboard for a period.
• Strong mentorship from experienced backend engineers.

Hiring process

• Clear growth path toward senior backend role.