Find Senior software engineer java Jobs

Senior DevOps Engineer
Relatech Spa —County Louth
- Computer Science
- DevOps
- Java
- Employee assistance program
Quick apply
Senior Full Stack Engineer
Zurich Insurance —County Cavan
- Azure
- Oracle
- Computer Science
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Senior Software Development Engineer, Aurora MySQL,Aurora PostgreSQL
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
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Dell Technologies —Cork, County Cork
- Full-time
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- Agile
Senior Software Engineer - Pricing Analytics
Bloomberg —Dublin, County Dublin
- Computer Science
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PlayStation Global —Dublin, County Dublin
- Computer Science
- DevOps
- Java
Quick apply
7d
Software Engineer 3
MongoDB —Dublin, County Dublin
- On call
- Hybrid work
- Azure
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Database Software Engineer
eBay Inc. —Dublin, County Dublin
- Full-time
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Senior Software Engineer - Data Backend (Search Quality) (Remote - Ireland)
Yelp —Dublin, County Dublin
- Full-time
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Senior Software Engineer - Data License Plus
Bloomberg —Dublin, County Dublin
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Senior Software Engineer - Application Spec (Patient Case Systems)
Medtronic —Galway, County Galway
- €65,600–€98,400 a year
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Fiserv —Dublin, County Dublin
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Mastercard —Dublin, County Dublin
- Full-time
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Sonatus —Dublin, County Dublin
- Hybrid work
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- Doctoral degree
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Quick apply
Senior Software Engineer - Rack Management - Cork,Ireland
Qualcomm —Cork, County Cork
- Doctoral degree
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Lead Full Stack Engineer
Optum —Dublin, County Dublin
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Principal Software Engineer
Mastercard —Dublin, County Dublin
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Senior Software Developer - Authentication Team
Workday —Dublin, County Dublin
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Senior Software Development Engineer in Test (Contractor 12 months)
PlayStation Global —Dublin, County Dublin
- Computer Science
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Senior Software Development Engineer, Aurora Control Plane Developer Experience
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
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Senior DevOps Engineer

Relatech Spa -
County Louth

Quick apply

Job details

Benefits

Employee assistance program

Qualifications

CI/CD
Computer Science
JUnit
Software Engineering
Kubernetes
DevOps
Java
SOAP
Analysis skills
Project management
Docker
REST
Computer Engineering
JSON
Kafka
Middleware
GitLab
Communication skills
Spring framework

Full job description

Who is BTO Research?

BTO Research is a consulting firm, part of the Relatech Group, that has been supporting its clients in innovative projects for over 15 years, ensuring a customized approach to meet market challenges.

Founded in 2008, we have gathered and enhanced the historical experience of consulting to which we have added two key elements: research and innovation.

This journey has led us to a team of over 300 professionals across four countries, with numerous projects and the most cutting-edge knowledge in Project Management, Digital Transformation, Change Management, Cybersecurity and Digital Marketing. We believe in the value of excellence and promote an environment where people can grow together, thanks to the contamination between different skills.

Senior DevOps Engineer:
Your role

We are looking for an Application Migration & Modernisation Engineer to support a large-scale transformation initiative focused on migrating legacy ESB-based services into modern, cloud-native architectures.

This role is particularly suited for profiles with strong experience in integration and middleware modernisation, moving legacy systems toward Spring Boot microservices deployed on OpenShift.

Key Responsibilities includes:
1. Application Migration & Modernisation

Migrate services from Java 6–11, SwitchYard, Red Hat Fuse / EAP 6 to Java 25 and Spring Boot 4

Rewrite Camel/Fuse routes and SwitchYard services into standalone Spring Boot components

Containerise services and deploy them on OpenShift

Maintain and evolve REST and SOAP APIs

Ensure backward compatibility with existing systems

2. Messaging & Integration

Contribute to migration from ActiveMQ to Kafka

Ensure reliability during coexistence phases

Implement integration patterns:
Idempotence

Error handling

Dead-letter queues

Message ordering

At-least-once delivery

Document data flows and messaging contracts (Avro/JSON, topics, consumer groups)

3. DevOps, CI/CD & Deployment

Maintain and enhance GitLab CI/CD pipelines

Manage build, testing, containerisation and deployment processes

Apply GitOps practices with ArgoCD

Work with Docker, Helm, Kustomize and OpenShift

Contribute to Infrastructure as Code for environment reproducibility

4. Quality, Reliability & Observability

Ensure stability and performance of migrated services

Implement automated testing (unit, integration, non-regression)

Use tools such as JUnit 5, Testcontainers, WireMock

Implement monitoring and logging:
Prometheus

Micrometer

Grafana

ELK

OpenTelemetry

Provide Level 3 support

Produce documentation and runbooks

Soft Skills

Strong analytical and problem-solving skills

Ability to work in complex technical environments

Good communication and collaboration skills

Autonomous and solution-oriented mindset

Attention to quality and detail

Requirements

Degree in Computer Science, Software Engineering or related field
Minimum 5 years of experience in Java development and system integration
Strong experience with Java (11–25) and Spring Boot (2.x–4.x)
Experience with REST and SOAP APIs
Knowledge of Apache Camel, Red Hat Fuse, SwitchYard
Experience with ActiveMQ/JMS and Kafka

Strong DevOps knowledge:
GitLab CI/CD
Docker
Kubernetes / OpenShift
ArgoCD
Helm / Kustomize
Knowledge of: Clean Code; Automated testing; SonarQube; OWASP
Nice to have: Kubernetes certifications (CKA / CKAD); Red Hat OpenShift certification (EX280)

Where: Luxembourg, Full on-site presence in Luxembourg (5 days per week)

What We Offer

✨ A dynamic, young, and fast-growing environment

Flexible thinking and working approaches

Hands-on experience in a stimulating, project-based context

Opportunities to learn from industry professionals

On-the-job training (and more)

The chance to work on real projects with tangible impact

The chance to work on real projects with tangible impact

Inclusion & Equal Opportunity

We believe in people, diversity, and meritocracy. Our recruitment processes are open to everyone—regardless of gender, ethnicity, orientation, or ability. For us, talent is a matter of energy, not labels.

Discover more about us #BTO

Explore our world at www.relatech.com

Quick apply

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senior software engineer java jobs

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