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TRCI-26-04914
Java (Spring Boot) Developer
Contract role in Amersfoort for a Java developer (5–7 years) working with Java 17+ and Spring Boot. The focus is on applying design patterns and Clean Code principles, and having solid understanding of multiple test levels (unit, functional, API, mocking, end-to-end). Dutch language proficiency (spoken and written) is required. Nice-to-haves include Kotlin, DevOps/build & deployment tooling (Maven, Git, Docker, Ansible), MongoDB, CI/CD and OTAP chain setup/maintenance, Linux/scripting, REST APIs, observability (Elastic/Logstash/Kibana, Grafana), E2E testing (Playwright/Cucumber), and CQRS with Axon; energy-sector experience is a plus.
Position summary
- Location
- Netherlands (the)
- Workplace
- Hybrid
- Employment
- Contract
- Experience
- Minimum 5 years and Maximum 7 years
Role overview
Why This Role Matters.
Contract role in Amersfoort for a Java developer (5–7 years) working with Java 17+ and Spring Boot. The focus is on applying design patterns and Clean Code principles, and having solid understanding of multiple test levels (unit, functional, API, mocking, end-to-end). Dutch language proficiency (spoken and written) is required. Nice-to-haves include Kotlin, DevOps/build & deployment tooling (Maven, Git, Docker, Ansible), MongoDB, CI/CD and OTAP chain setup/maintenance, Linux/scripting, REST APIs, observability (Elastic/Logstash/Kibana, Grafana), E2E testing (Playwright/Cucumber), and CQRS with Axon; energy-sector experience is a plus.
Your Impact
Deliver Enterprise Value
Help organisations solve complex business problems through modern technology, consulting expertise and measurable outcomes.
Collaboration
Work Across Teams
Collaborate with consultants, architects, engineers and client stakeholders throughout the project lifecycle.
Growth
Learn Continuously
Gain exposure to enterprise technologies, certifications, mentoring and real-world project experience.
Career Path
Grow With Ubique
Build a long-term consulting career with opportunities to take on greater responsibility and leadership over time.
Responsibilities
What You'll Be Doing.
Every role at Ubique contributes directly to solving meaningful business challenges for our clients.
02
You have experience with Java 17+ and Spring Boot.
03
You have experience using design patterns and methodologies and an opinion on Clean Code.
04
You have insight into different test levels (unit tests, functional tests, API tests, mocking, end-to-end tests)
05
You have an excellent command of the Dutch language, both written and spoken.
06
You have experience with Kotlin
07
You have experience with build & deployment tools such as: Maven, GIT, Docker, Ansible
08
You have experience with NoSQL databases, particularly MongoDB.
09
You have experience in the energy sector
Technology stack
Tools & Technologies.
The platforms and technologies you'll use to build modern, enterprise-grade solutions.
01
Java 17
Required
02
Spring Boot
Required
03
Kotlin
Required
04
Maven
Required
05
Git
Required
06
Docker
Required
07
Ansible
Required
08
MongoDB
Required
09
NoSQL
Required
10
CI/CD
Required
11
OTAP
Required
12
Linux
Required
13
Scripting
Required
14
REST
Required
15
Elastic
Required
16
Logstash
Required
17
Kibana
Required
18
Grafana
Required
19
Playwright
Required
20
Cucumber
Required
Requirements
Skills & Experience.
We value curiosity, collaboration and continuous learning. If you don't meet every requirement but believe you can make an impact, we'd still love to hear from you.
Essential
Required Qualifications
Java 17+
Spring Boot
Design patterns
Clean Code principles
Testing knowledge across levels (unit, functional, API, mocking, end-to-end)
Dutch language (written and spoken)
Preferred
Nice to Have
Kotlin
Maven
Git
Docker
Ansible
NoSQL databases
MongoDB
CI/CD tooling
OTAP development chains (setup/maintenance)
Linux
Scripting
REST APIs
Elastic
Logstash
Kibana
Grafana
Playwright
Cucumber
CQRS
Axon Framework
What you'll gain
More Than Just A Job.
We're committed to helping every team member grow professionally, personally and technically while working on meaningful projects.
Global Exposure
Collaborate with international clients and multicultural teams on enterprise programmes.
Continuous Learning
Expand your expertise through mentoring, certifications and hands-on project experience.
Career Growth
Take ownership, develop leadership skills and grow your consulting career over time.
Flexible Working
Hybrid and remote collaboration designed around trust and delivering exceptional outcomes.
People First
Join a supportive culture where collaboration, respect and long-term relationships come first.
Enterprise Projects
Work on meaningful technology initiatives for leading organisations across industries.
Apply
Apply for Java (Spring Boot) Developer
One page, about two minutes. We only ask for what we actually need to have a first conversation.