Senior Java Developer

Senior Java Developer - Contract - 5 Days Onsite Location: Dublin (5 days onsite) Contract: 6 months initial (strong extension potential) Our client, a well-established organisation based in Dublin, is seeking a seasoned Java professional to join a high-performing delivery team on a fully onsite contract role. The Opportunity As a Senior Java Developer, you will be responsible for designing, developing and delivering robust, secure, and scalable solutions that meet both business and regulatory requirements. You will play a key role in shaping technical solutions from the outset, ensuring maintainability, testability, and ease of integration are built in by design. Key Responsibilities Contribute to story refinement and clearly defining technical requirements Estimate effort and guide the team through delivery across the full SDLC Carry out spikes and proof-of-concepts to reduce risk and validate new ideas Develop high-quality Java solutions aligned with acceptance and compliance criteria Design and implement solutions across data, application and business layers Support the team in resolving complex technical challenges Design, develop and enhance architectural components while maintaining core architecture integrity Build and maintain automated test suites (integration, regression, performance) Set up and enhance CI/CD pipelines Automate manual release and deployment activities Required Skills & Experience 5+ years experience in Java development within large, complex enterprise environments Strong hands-on experience with Java (JDK 8+) and Spring Framework Proven experience developing and consuming REST and SOAP web services Strong working knowledge of GIT, Maven, Jenkins and JIRA Experience with application container setup and deployment in Linux environments Solid understanding of application security concepts including authentication, authorisation and session management Familiarity with OAuth, OIDC, FIDO protocols and related technologies LDAP experience highly desirable Strong understanding of system architecture, load balancing and TLS Familiarity with cryptographic and PKI concepts Ability to review vendor documentation and deliver proof-of-concepts Excellent communication skills and a proactive, self-driven approach Interested? Apply now or contact Honey Rathore directly at for a confidential discussion. Please note: We have a number of similar positions currently, and in the future, which we would like to discuss with you should you indicate your interest in this role. When we receive your application for this role, we will contact you to advise you of our process for other similar positions. Stelfox is fully compliant with GDPR regulations and you can read more in our privacy policy here: Your shared data will not be disclosed or transferred to a third party data controller or data processor located outside the EEA unless we have obtained your express consent. We look forward to working with you.
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