Full-Stack Java Developer (Fintech)

Job Title: Full Stack Java Developer (Fintech)
Location: Luxembourg
Salary/Rate: ?75-80k per annum benefits
Start Date: March
Job Type: Full-time, permanent

Company Introduction

We are seeking a dynamic, innovative and experienced Full-stack Java Developer to join our team on a long-term project.

Job Responsibilities/Objectives

The successful candidate will play an instrumental role in the development of a pioneering low-code platform that impacts productivity quicker and more cost-effectively. This platform will leverage an embedded UI kit and a unified API layer to empower users in configuring and building tailor-made web business applications that interact directly with our clients accounting and investor-services core engines, using finely curated UI components aligned with established design systems and practices.

• Design, implement, and maintain core features and services of the low-code development platform.
• Collaborate closely with the product team to understand user needs and translate them into product features.
• Review code for quality, clarity, maintainability, and alignment with internal and industry standards.
• Participate in peer code reviews and provide constructive technical feedback.
• Troubleshoot, diagnose, and resolve application issues across the stack.
• Take ownership of deliverables and demonstrate accountability throughout the development lifecycle.

Required Skills/Experience:

• Strong expertise with Core Java and J2EE technologies (JMS, EJB, JDBC, JPA, etc.).
• Proficiency in Spring Framework and Spring Boot, with hands-on development experience.
• Experience with modern frontend frameworks such as React, Vue, or Svelte, with solid understanding of component-driven architecture, state management, and responsive UI development.
• Experience with automated testing frameworks and system monitoring tools.
• Strong habit of writing clean, maintainable unit tests (JUnit).
• Solid understanding of REST API design and implementation.
• Good knowledge of relational databases (Oracle, PostgreSQL).
• Familiarity with software engineering best practices, design patterns, and clean code principles.
• Strong analytical and problem-solving abilities.
• A major plus: experience working in R&D environments or on low-code/no-code platforms.

If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.

Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.

Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.