Senior Software Engineer – Java / Distributed Systems (€360 per day)

Solas IT Recruitment; Dublin; Hybrid; EUR 56,000 - 76,000; Part time

Job summary

Solas IT Recruitment is seeking a Senior Software Engineer for a Dublin-based hybrid contract. The role emphasizes Java, backend development and distributed systems, with focus on architecture and system design rather than purely hands-on coding.

You will design microservices, APIs and event-driven workflows, guide technical decisions across distributed environments, and work with Product, Architecture and Platform teams to deliver scalable, observable, and resilient solutions.

Qualifications

• Must have strong Java and Spring Boot backend experience.
• Deep understanding of software architecture and system design.
• Experience designing microservices and distributed systems.

Responsibilities

• Design scalable, secure, highly available backend platforms.
• Translate complex business requirements into technical solutions.
• Design microservices, APIs, workflows and event-driven systems.
• Make architectural decisions across distributed environments.
• Collaborate with Product, Architecture and Platform teams on solutions.
• Ensure applications are scalable, maintainable, observable and resilient.
• Review solutions and maintain engineering standards.
• Troubleshoot production issues and perform root-cause analysis.
• Leverage AI-assisted development tools to accelerate delivery while maintaining quality.

Skills

Java

Spring Boot

Distributed systems

Microservices

Event-driven

DDD

SOLID principles

CQRS

Event Sourcing

Relational DBs

NoSQL

CI/CD

DevOps

AI tools (Copilot/Claude)

Kafka

Observability

Job description

Senior Software Engineer – Java / Distributed Systems (€360 per day)

Location: Dublin 18 - Hybrid – 3 days in the office

Type: Contract

What we are looking for

We are looking for a Senior Software Engineer with a strong background in Java, backend development and distributed systems. This position has a significant focus on software architecture, system design and engineering judgement, rather than purely hands-on coding.

The ideal candidate will have:

• Strong commercial experience with Java and Spring Boot or similar backend technologies.
• Excellent understanding of software architecture and system design.
• Experience designing microservices and distributed systems.
• Strong knowledge of event-driven architecture and asynchronous systems.
• Understanding of Domain-Driven Design (DDD) and SOLID principles.
• Experience with CQRS, Event Sourcing and software design patterns.
• Experience with both relational and NoSQL databases.
• Knowledge of highly available, resilient and fault-tolerant systems.
• Strong understanding of CI/CD, automated testing and DevOps practices.
• Experience working with complex enterprise platforms.

Responsibilities

• Design and evolve scalable, secure and highly available backend platforms.
• Translate complex business requirements into well-designed technical solutions.
• Design microservices, APIs, workflows and event-driven systems.
• Make key architectural and software design decisions across distributed environments.
• Work closely with Product, Architecture and Platform teams on technical solutions.
• Ensure applications are scalable, maintainable, observable and operationally resilient.
• Review technical solutions and maintain high engineering and architectural standards.
• Troubleshoot complex production issues and perform root-cause analysis.
• Use AI-assisted development tools to accelerate software delivery while maintaining quality, security and maintainability.

Nice to Have

Experience with any of the following would be advantageous:

• Kafka or similar messaging/event technologies
• Observability and application monitoring
• GitHub Copilot, Claude, Cursor or similar AI development tools
• Financial services, payments or transaction-processing platforms
• Complex workflow or state-machine systems
• High-volume, business-critical enterprise applications