Senior Software Engineer – Java

Oliver James; Dublin; Hybrid; EUR 90,000 - 120,000; Full time

Job summary

Oliver James seeks an experienced Senior Backend Engineer specializing in Java in Dublin City Centre. The role is hybrid, requiring 3 days onsite weekly, and involves designing, developing, and delivering scalable backend services and APIs.

The ideal candidate is hands-on, can solve complex problems, and will contribute to engineering best practices. Initial 6-month rolling contract with potential extension based on performance and business needs.

Qualifications

• Experience designing and delivering scalable backend services in Java.
• Hands-on role with strong problem solving and code quality.
• Familiarity with Agile/Scrum environments.

Responsibilities

• Design, develop and maintain robust backend services with Java.
• Build and maintain RESTful APIs and distributed services.
• Contribute to architectural and technical design decisions.

Skills

Java

Backend engineering

REST APIs

Distributed systems

CI/CD

Education

Bachelor's in Computer Science

Tools

Spring

REST

CI/CD pipelines

Job description

Senior Backend Engineer – Java

Location

Dublin City Centre, Ireland

Working Arrangement

Hybrid – 3 days per week onsite

Contract

Initial 6-month rolling contract

About The Role

We are looking for an experienced Senior Backend Engineer specialising in Java to join a high-performing engineering team within a fast-paced technology company based in Dublin City Centre.

You’ll play a key role in designing, developing and delivering scalable backend services and APIs, working closely with other engineers, product managers and technical stakeholders. This is a hands‑on position suited to someone who enjoys solving complex technical problems and contributing to engineering best practices.

The initial contract is for 6 months on a rolling basis, with the expectation of ongoing collaboration subject to business requirements and performance.

Key Responsibilities

• Design, develop and maintain robust, scalable backend services using Java and modern backend technologies.
• Build and maintain RESTful APIs and distributed services.
• Contribute to architectural and technical design decisions.
• Write clean, maintainable and well-tested code.
• Work closely with frontend engineers, product managers, QA and other stakeholders to deliver high-quality products.
• Identify and resolve performance, scalability and reliability issues.
• Participate in code reviews and contribute to engineering standards and best practices.
• Support automated testing, CI/CD and deployment processes.
• Troubleshoot production issues and contribute to root‑cause analysis.
• Mentor and support less experienced engineers where appropriate.
• Contribute to an Agile/Scrum development environment.