TRPI-26-06873

Java Back-end Developer

This is a senior Java back-end specialist role in the ENIAMS program, initially supporting the Travel Documents System Improvement project and its integration with Identity and Access Management systems. The work includes designing and delivering maintainable back-end software for travel-document processes, including biometric data storage, and contributing through code reviews, unit tests, stakeholder demos, and Scrum activities. Core requirements include Java and Spring Boot, unit and integration testing, API documentation with OpenAPI and JSON Schema, CI/CD, messaging and system integration, Kubernetes or OpenShift, MongoDB, PostgreSQL, Helm, and PKI. Service Mesh, GitOps, GitLab CI/CD quality tools, JWS/JWE, and technical specification documentation are listed as desirable. The structured experience band is 6–8 years, while the description requires at least 7 years with Java/Spring Boot and testing, so candidates should be able to demonstrate that threshold; the other stated thresholds are 4 years for several integration and delivery skills and 2 years for platform, database, Helm, and PKI skills. The role is permanent and located in Hague; the work mode is not specified.

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Position summary

Location: Netherlands
Workplace: Hybrid
Employment: Full Time
Experience: Minimum 6 years and Maximum 8 years

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Role overview

Why This Role Matters.

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.

Delivering code that meets the specified specifications and acceptance criteria;

Reviewing code from other developers within the team;

Building unit tests;

Giving demos to the stakeholders.

Develop in Java (preferably version 11 or higher) and Spring Boot

Setting up and maintaining unit and integration tests

Designing and documenting APIs using OpenAPI and JSON Schema

Working with CI/CD environments

Applying communication and message patterns within system integrations

Developing and deploying within a Kubernetes or OpenShift environment

Use of PostgreSQL

Working with Helm Charts

Technology stack

Tools & Technologies.

The platforms and technologies you'll use to build modern, enterprise-grade solutions.

Java

Required

Java 11

Required

Spring Boot

Required

unit testing

Required

integration testing

Required

OpenAPI

Required

JSON Schema

Required

CI/CD

Required

continuous integration

Required

continuous delivery

Required

messaging

Required

message patterns

Required

system integration

Required

Kubernetes

Required

K8s

Required

OpenShift

Required

MongoDB

Required

PostgreSQL

Required

Helm

Required

Helm Charts

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

At least 7 years of Java (preferably Java 11 or higher) and Spring Boot development

At least 7 years setting up and maintaining unit and integration tests

At least 4 years designing and documenting APIs with OpenAPI and JSON Schema

At least 4 years working with CI/CD environments

At least 4 years applying communication and message patterns in system integrations

At least 2 years developing and deploying in Kubernetes or OpenShift

At least 2 years using MongoDB

At least 2 years using PostgreSQL

At least 2 years working with Helm Charts

At least 2 years working with PKI, including certificates, encryption, and message signing

Preferred

Nice to Have

Familiarity with Service Mesh technologies

Familiarity with GitOps principles

Experience with GitLab CI/CD pipelines

Experience with SonarQube, Trivy, and OWASP Dependency Track

Experience with JWS and JWE for signing and encrypting messages

Experience documenting technical specifications

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.

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