Software Engineer (Java)

Harvey Nash Ireland · Recruitment agency

Contract•Front-end development•€650-660/day (EUR)•Dublin, Ireland · Remote within Ireland · Hybrid

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TechJobs.ie Job Insights

At a glance

Employment type: Contract
Location: Dublin, Ireland · Remote within Ireland · Hybrid
Workplace: Hybrid
Day rate: €650-660/day (EUR)
Category: Front-end development

Technologies & skills

Primary technologies

Spring Boot React Java

Cloud & infrastructure

CI/CD

Other technical skills

REST APIs Kafka

What you'll be doing

Join a global organization as a Senior Software Engineer in Dublin (Hybrid), focusing on large-scale, high-availability digital platforms. Work on complex enterprise systems using Java, Spring Boot, microservices, REST APIs, Kafka, and CI/CD within Agile teams and event-driven architectures.

Design and build scalable backend services using Java and Spring Boot
Develop microservices and REST APIs within distributed systems
Work with event-driven architectures using Kafka
Contribute to architecture, design decisions, and technical best practices
Collaborate within Agile engineering teams
Drive quality through CI/CD, monitoring, and automation

Key requirements

Must-have

Strong Java development experience
Spring Boot and Microservices
REST API development
Kafka and event-driven architecture
Oracle or similar relational databases
CI/CD and Git-based development
Experience working on large-scale distributed systems
Exposure to AI-assisted development tools

Nice-to-have

Axon Framework
PCF / Cloud platforms
Splunk, Dynatrace or similar monitoring tools
Payments, fintech or highly regulated industry experience
React or other frontend technologies

Role signals

Technical focus: backend
Architecture / system design: Indicated in the listing
Hands-on vs management: Hands-on

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Full job description

Senior Software Engineer | Dublin (Hybrid) | €650-€660/day

Java, Spring Boot, Microservices

We're supporting a leading global organisation as they continue to invest in the development of large-scale, high-availability digital platforms and are looking to add an experienced Senior Software Engineer to their team.

This is an opportunity to work on complex, enterprise-scale systems that process significant transaction volumes, leveraging modern engineering practices, event-driven architecture, and AI-assisted development tools.

What you'll be doing

Designing and building scalable backend services using Java and Spring Boot
Developing microservices and REST APIs within distributed systems environments
Working with event-driven architectures using Kafka
Contributing to architecture, design decisions, and technical best practices
Collaborating within Agile engineering teams
Driving quality through CI/CD, monitoring, and automation
Experience required

✅ Strong Java development experience

✅ Spring Boot and Microservices

✅ REST API development

✅ Kafka and event-driven architecture

✅ Oracle or similar relational databases

✅ CI/CD and Git-based development

✅ Experience working on large-scale distributed systems

✅ Exposure to AI-assisted development tools (e.g. GitHub Co-pilot, Cursor, Claude, etc.)

Nice to have

Axon Framework
PCF / Cloud platforms
Splunk, Dynatrace or similar monitoring tools
Payments, fintech or highly regulated industry experience
React or other frontend technologies
If you're an experienced Java engineer looking to work on high-volume, mission-critical platforms within a modern engineering environment, I'd be keen to speak with you.

Apply now or contact me directly for further details.

Interview prep pack

Grounded in this listing. Use it to prepare examples before you apply.

Your interview focus

Based on this listing, the role is for a Senior Software Engineer (Java) to design and build scalable backend services using Java, Spring Boot, and microservices, with a strong focus on distributed systems, event-driven architecture (Kafka), and CI/CD practices in a hybrid Dublin-based team.

Backend engineering expertise·High
Distributed systems and scalability·High
Event-driven architecture·High
CI/CD and automation·Medium

Only have 30 minutes?

Follow a focused preparation plan based on this job.

Start 30-minute prep

Your 30-minute plan

Review Java, Spring Boot, and Microservices Projects
0–8 min
Select 1-2 relevant projects and prepare concise stories highlighting your role, challenges, and outcomes.
Refresh Kafka and Event-Driven Architecture Concepts
8–14 min
Study key Kafka patterns and recall specific examples where you implemented or optimized event-driven solutions.
Summarize CI/CD and Automation Experience
14–20 min
List tools and processes you've used for CI/CD, and prepare to discuss improvements or incidents handled.
Prepare Questions for the Interviewer
20–25 min
Choose 2-3 questions from the provided list that align with your interests and priorities.
Practice Explaining Technical Decisions
25–30 min
Rehearse articulating your reasoning behind architectural or technology choices in past roles.

Likely questions

Expand all

Priority reflects how strongly this topic is emphasised in the job listing, not whether it will be asked.

1Can you describe a recent project where you designed and implemented a scalable backend service using Java and Spring Boot?High
Why they may ask
Assesses hands-on experience with core technologies and ability to deliver robust solutions.
Prepare to discuss
- Clear description of the system's scale and requirements.
- Specifics on architectural decisions and Spring Boot usage.
- Challenges faced and how they were overcome.
- Impact on system performance or reliability.
Tip: Use metrics or outcomes to quantify your impact.
2How have you approached building and maintaining microservices and REST APIs in a distributed system?High
Why they may ask
Evaluates understanding of microservices architecture and best practices for API design.
Prepare to discuss
- Explanation of service decomposition and API versioning.
- Discussion of inter-service communication and error handling.
- Experience with documentation and testing strategies.
Tip: Mention tools or frameworks used for API management.
3What is your experience with Kafka or similar event-driven platforms, and how have you used them to solve business problems?High
Why they may ask
Tests practical knowledge of event-driven systems and ability to apply Kafka effectively.
Prepare to discuss
- Description of Kafka's role in the architecture.
- Examples of event flows and message handling.
- Discussion of scalability, reliability, and monitoring.
Tip: Highlight any performance improvements or incident resolutions.
4Describe your approach to implementing CI/CD pipelines and ensuring code quality in a collaborative team.Medium
Why they may ask
Assesses familiarity with modern DevOps practices and teamwork.
Prepare to discuss
- Tools and processes used for CI/CD (e.g., Jenkins, GitHub Actions).
- Strategies for automated testing and deployment.
- Examples of reducing deployment errors or cycle times.
Tip: Include any experience with monitoring or rollback strategies.
5How have you optimized database interactions in large-scale systems, particularly with Oracle or similar RDBMS?Medium
Why they may ask
Evaluates ability to design efficient data access patterns and troubleshoot performance.
Prepare to discuss
- Techniques for query optimization and indexing.
- Experience with schema design and migrations.
- Handling of data consistency and transaction management.
Tip: Share a specific performance tuning example if possible.
6Have you used AI-assisted development tools (e.g., GitHub Copilot)? How did they impact your workflow?Lower
Why they may ask
Explores openness to new technologies and productivity enhancements.
Prepare to discuss
- Specific tools used and integration into daily work.
- Examples of increased efficiency or code quality.
- Awareness of limitations and best practices.
Tip: Be honest about both benefits and challenges.
7What challenges have you faced working on high-volume, mission-critical platforms, and how did you address them?Medium
Why they may ask
Assesses problem-solving skills and experience under pressure.
Prepare to discuss
- Description of a specific incident or bottleneck.
- Steps taken to diagnose and resolve the issue.
- Outcome and lessons learned.
Tip: Focus on your role and decision-making process.

Talking points

Designing Scalable Backend Services
Demonstrate your experience architecting and implementing robust, high-availability systems using Java and Spring Boot.
Developing Microservices and REST APIs
Showcase your ability to build, document, and maintain microservices and RESTful endpoints in distributed environments.
Implementing Event-Driven Architectures with Kafka
Highlight your practical knowledge of Kafka and event-driven patterns for handling high transaction volumes.
CI/CD and Automation in Agile Teams
Explain your approach to continuous integration, deployment, and quality assurance in collaborative engineering settings.
Working with Relational Databases (Oracle or Similar)
Provide examples of designing and optimizing data models and queries for enterprise-scale applications.
Utilizing AI-Assisted Development Tools
Discuss your experience leveraging tools like GitHub Copilot or similar to enhance productivity and code quality.

What to research

Java and Spring Boot Best Practices
Review recent projects and be ready to discuss architectural decisions, performance tuning, and troubleshooting in Java/Spring Boot environments.
Microservices and REST API Design
Prepare examples of designing, documenting, and maintaining microservices and RESTful APIs, including handling versioning and inter-service communication.
Kafka and Event-Driven Architecture
Brush up on Kafka concepts, event streaming patterns, and real-world use cases where you implemented or improved event-driven systems.
CI/CD and Automation Tools
Be ready to discuss your experience with CI/CD pipelines, automation, and monitoring tools relevant to large-scale distributed systems.

Questions to ask

How is the engineering team structured, and how do cross-functional teams collaborate on large-scale projects?
Why ask this? To understand team dynamics and collaboration processes.
What are the main technical challenges currently facing the platform, especially regarding scalability and reliability?
Why ask this? To gauge the complexity of the systems and where your expertise can add value.
How does the team approach architectural decisions and technical debt management?
Why ask this? To assess the maturity of engineering practices and your potential influence.
What is the process for adopting new technologies or tools, such as AI-assisted development platforms?
Why ask this? To understand openness to innovation and continuous improvement.
How is success measured for this role, both individually and as part of the team?
Why ask this? To clarify expectations and performance metrics.
Are there opportunities to contribute to frontend development or other areas outside the core backend responsibilities?
Why ask this? To explore potential for growth and cross-functional work.

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Apply NowApply before: 30 Oct 2026

Software Engineer (Java)

TechJobs.ie Job Insights

At a glance

Technologies & skills

What you'll be doing

Key requirements

Role signals

Similar jobs

Full job description

Nice to have

Interview prep pack

Your interview focus

Only have 30 minutes?

Your 30-minute plan

Likely questions

Talking points

What to research

Questions to ask

Register now to upload your CV

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