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Senior Java Developer - Blockchain & Distributed Ledger Systems

Ireland
Relocation
This Job is No Longer Active This position is no longer accepting applications
AI Summary

Design and deliver scalable backend systems integrating enterprise Java platforms with blockchain technologies. Develop secure RESTful APIs and distributed ledger components while ensuring data integrity across on-chain and off-chain environments. Provide technical guidance and mentorship in Agile delivery teams.

Key Highlights
Java 8+ backend development with Spring Boot and microservices
Blockchain integration and distributed ledger expertise
Secure API design and cryptography knowledge
Cloud-native and DevOps experience preferred
Agile delivery in Dublin city centre
Key Responsibilities
Design and build scalable backend services using Java and microservices architecture
Develop and integrate blockchain-enabled components including distributed ledger interactions and transaction workflows
Build secure RESTful APIs for system integrations
Ensure security, data integrity, and consistency across on-chain and off-chain systems
Contribute to system architecture, performance optimization, and reliability in distributed environments
Collaborate with cross-functional teams in Agile delivery environments
Provide technical guidance, code reviews, and mentorship to engineering team members

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Technical Skills Required
Java Spring Boot Microservices REST API design Blockchain concepts Distributed ledgers Consensus Transaction models Secure coding practices Cryptography basics Application security Relational databases NoSQL databases Distributed systems Smart contracts Blockchain frameworks Cloud-native development Containers Orchestration tools CI/CD pipelines DevOps practices Automated testing Event-driven architectures Messaging systems
Benefits & Perks
Annual Bonus Scheme
Contributory Pension
Private Medical Insurance
Life Assurance & Long-Term Disability
Employee Assistance Programme
22 days annual leave
10 public holidays
Relocation package
Continuous Learning & Development
Training & certification resources
Lunch & Learn sessions
Company discounts
On-site parking
Bike-to-work scheme

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Nice to Have
Smart contracts or blockchain frameworks/SDKs
Experience integrating backend systems with blockchain platforms
Cloud-native development, containers, and orchestration tools
CI/CD pipelines, DevOps practices, and automated testing
Event-driven architectures or messaging systems
Work in high-security or large-scale enterprise platforms
Technical leadership or solution design experience

Job Description

My client is looking for an experienced Java developer to join their growing team in Dublin city centre. You’ll be responsible for designing and delivering backend systems that integrate enterprise Java platforms with blockchain and distributed ledger technologies.

Key Responsibilities

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Job Overview
Posted Jun 29, 2026
Employment Full-time
Experience Mid-Senior level
Location Ireland
Category Blockchain
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