Senior Software Engineer - Java

E-Frontiers; Dublin; Hybrid; EUR 70,000 - 80,000; Full time

Job summary

E-Frontiers in Dublin City Centre is seeking a Senior Java Developer to join the Information Systems team on a permanent basis. You will work on existing platforms and a greenfield microservices project, combining hands-on Java development with architecture leadership.

We expect 5+ years in Java/J2EE with Spring, REST APIs, SQL/RDBMS, and modern build/git tools. The role offers a hybrid work model and a strong benefits package in a collaborative, security-focused financial services environment.

Qualifications

• 5+ years' experience as a Senior Java Developer working with Java/J2EE and the Spring ecosystem (Spring Boot, MVC, Batch, Integration).
• Strong experience building REST APIs, working with SQL/RDBMS, and using Maven/Gradle and Git.
• Solid understanding of web application security, Linux environments, and Agile delivery.
• Practical experience using AI-powered development tools (e.g. GitHub Copilot, ChatGPT) to support the software development lifecycle.
• Excellent communication skills with strong problem-solving and stakeholder engagement ability.

Responsibilities

• Design and deliver Java-based solutions, including core components for a new greenfield microservices platform.
• Lead the end-to-end implementation of new services, features, and integrations.
• Collaborate with business stakeholders, vendors, QA, and cross-functional teams to meet functional and non-functional requirements.
• Ensure solutions are secure, scalable, and aligned with architectural standards and best practices.
• Mentor junior developers and contribute to technical documentation and continuous improvement initiatives.

Skills

Java/J2EE

Spring ecosystem

REST APIs

SQL/RDBMS

Maven/Gradle

Git

Web application security

Linux

Agile delivery

AI-powered development tools

Tools

Docker

Kubernetes/OpenShift

Jenkins

Azure

DevOps tooling

Job description

Senior Java Developer — Permanent: base salary €70 - 80K + benefits — Dublin City Centre - Hybrid

A leading organisation in the financial services space is seeking an experienced Senior Java Developer to join their Information Systems team. The business delivers secure, high-availability digital platforms and is investing heavily in modernisation and new technology initiatives.

The role

As a Senior Java Developer, you will be a key contributor to both existing platforms and an exciting greenfield project, building new services from the ground up. This role blends hands-on Java development, microservices design, and technical leadership within a collaborative, stakeholder-facing environment.

Your Responsibilities:

• Design and deliver Java-based solutions, including core components for a new greenfield microservices platform.
• Lead the end-to-end implementation of new services, features, and integrations.
• Collaborate with business stakeholders, vendors, QA, and cross-functional teams to meet functional and non-functional requirements.
• Ensure solutions are secure, scalable, and aligned with architectural standards and best practices.
• Mentor junior developers and contribute to technical documentation and continuous improvement initiatives.

About You:

• 5+ years' experience as a Senior Java Developer working with Java/J2EE and the Spring ecosystem (Spring Boot, MVC, Batch, Integration).
• Strong experience building REST APIs, working with SQL/RDBMS, and using tools such as Maven/Gradle and Git.
• Solid understanding of web application security, Linux environments, and Agile delivery.
• Practical experience using AI-powered development tools (e.g. GitHub Copilot, ChatGPT) to support the software development lifecycle.
• Excellent communication skills with strong problem-solving and stakeholder engagement ability.

Nice to have:

• Experience with CI/CD, Docker, Kubernetes/OpenShift, Jenkins, cloud platforms (Azure preferred), DevOps tooling, or financial services systems.

Benefits

This permanent Senior Java Developer role offers a strong benefits package, a collaborative engineering culture, and the opportunity to shape a greenfield platform using modern technologies.