Senior JVM Engineer for AI-Driven Backend & Cloud

Join; Utrecht; Hybrid; EUR 75,000 - 110,000; Full time

Benefits offered by this job

Profit sharing

Flexible working hours

Trainer opportunities

Developer-led culture

International network

Job summary

Join, a senior software engineering consultancy focused on the Java ecosystem, is seeking an experienced engineer to design, build and improve high-quality software systems for leading clients in the Netherlands. You will work hands-on with Java, Kotlin, and the JVM on backend, full-stack and cloud-native projects, sharing knowledge and applying AI-driven practices.

Fluent Dutch and strong English communication are required, along with 5+ years of experience and a degree in CS/SE.

Qualifications

• 5+ years professional software engineering experience.
• Fluent Dutch and strong English communication skills.
• Bachelor’s or Master’s in CS/SE or equivalent practical experience.
• Strong engineering mindset—clean code, architecture, testing, maintainability.
• Curiosity about AI in software engineering and willingness to experiment with new tools.
• Experience with JVM frameworks such as Spring, Quarkus or similar.
• Experience with CI/CD, test automation, DevOps, monitoring or automated deployments.
• Experience with cloud and container technologies such as AWS, GCP, Docker or Kubernetes.
• Experience with relational or NoSQL databases.
• Experience with event-driven architectures such as Kafka, Redis or Vert.x is a plus.
• Experience with frontend technologies such as Angular, React or Vue is a plus.
• Experience with public speaking, meetups, conferences or training is a plus.
• Collaborative mindset and strong communication skills.
• Location near Utrecht preferred.

Responsibilities

• Design, build and improve high-quality software systems for leading clients.
• Work hands-on with Java, Kotlin and the JVM ecosystem on backend, full-stack and cloud-native projects.
• Help clients improve architecture, engineering practices and AI in software development.
• Contribute to production-ready systems with focus on quality, maintainability and reliability.
• Collaborate with experienced developers, architects and technology experts.
• Explore and apply AI-assisted engineering practices in real-world delivery.
• Share knowledge through talks, blogs, meetups or training sessions.
• Continue developing your craft through coaching, conferences and challenging technical work.

Skills

Java/Kotlin

JVM ecosystem

English communication

Clean code

AI curiosity

CI/CD

Cloud & containers

Databases

Event-driven

Frontend basics

Public speaking

Collaborative mindset

Education

CS/Software Eng degree

Tools

Spring

Quarkus

AWS

GCP

Docker

Kubernetes

Kafka

Redis

Vert.x

Angular/React/Vue

Job description

Join, a senior software engineering consultancy focused on the Java ecosystem, is seeking an experienced engineer to design, build and improve high-quality software systems for leading clients in the Netherlands. You will work hands-on with Java, Kotlin, and the JVM on backend, full-stack and cloud-native projects, sharing knowledge and applying AI-driven practices.

Fluent Dutch and strong English communication are required, along with 5+ years of experience and a degree in CS/SE.