Top Java Developer Jobs in Dublin

Develops, supports, analyzes, designs, and delivers software applications using Java and Spring. Researches alternative technical solutions to address changing business needs and follows Mastercard information security policies, protecting data confidentiality and integrity while reporting potential security incidents.

Supports application software through programming, analysis, design, development, delivery, and research of technical solutions. The role develops software aligned with changing business needs and follows Mastercard security policies, protects information confidentiality and integrity, reports suspected breaches, and completes mandatory security training.

Supports Mastercard application software through programming, analysis, design, development, delivery, and research of alternative technical solutions. The role develops and maintains software solutions aligned with changing business needs and follows corporate information-security policies, protecting data confidentiality and integrity while reporting potential security incidents.

Develops, analyzes, designs, and delivers software solutions using Java and Spring. Provides application support, researches alternative technical approaches, and adapts software to changing business needs while following Mastercard information-security policies.

Supports application software through programming, analysis, design, development, delivery, and research of alternative technical solutions. Ensures information security by following Mastercard policies, protecting data confidentiality and integrity, reporting suspected breaches, and completing required security training.

Leads software application support and development through programming, analysis, design, research, and delivery of software solutions. The role evaluates alternative technical approaches to address changing business needs and follows Mastercard’s information security policies, protecting data confidentiality and integrity and reporting suspected security incidents.

Supports application software through programming, analysis, design, development, delivery, and research of alternative technical solutions to address changing business needs. The role also requires adherence to information security policies, protection of confidential information, incident reporting, and completion of mandatory security training.

Develops, supports, analyzes, designs, and delivers software solutions using Java and Spring. The role researches alternative technical approaches to address changing business needs and is responsible for maintaining information security, protecting data confidentiality and integrity, reporting security incidents, and completing required security training.

Develops, supports, analyzes, designs, and delivers software solutions using Java and Spring. Researches alternative technical approaches to address changing business needs and follows Mastercard information security policies, protects data confidentiality and integrity, reports security incidents, and completes required security training.

Supports and develops application software through programming, analysis, design, delivery, and research into alternative technical solutions. The role requires applying Java and Spring development skills while adapting software solutions to changing business needs. Employees are also responsible for following information security policies, protecting data confidentiality and integrity, reporting suspected breaches, and completing required security training.

Supports applications software through programming, analysis, design, development, delivery, and research of technical solutions for evolving business needs. The role also requires adherence to information security policies, protection of data confidentiality and integrity, incident reporting, and completion of mandatory security training.

Leads full-stack engineering for Citi’s Issuer Services Technology team, driving platform modernization and transformation of legacy applications. Responsibilities include Java, Spring Boot, and Angular development; application architecture and design decisions; coding, testing, debugging, and implementation standards; complex systems analysis; cross-functional integration; risk and compliance oversight; and coaching developers. The role also requires AI tooling and prompt engineering expertise, project leadership, and delivery-focused team management.

Develop and enhance Citi’s Prime Sequel Platform, a critical P&L allocation engine for Prime Finance. Responsibilities include designing scalable Java applications, analyzing technical and business challenges, overseeing the software development lifecycle, supporting users, managing technical risks, collaborating with stakeholders, and mentoring junior engineers. The role requires Java, Spring, microservices, SQL, Linux, testing, scheduling, and agile development experience.

Designs and maintains Java backend services, distributed and event-driven integrations, and Angular user interfaces. Owns software delivery across the SDLC, including testing, deployment, production support, CI/CD, observability, and security automation. Collaborates with engineers, architects, product, UX, and stakeholders; participates in code reviews; applies domain-driven design; and mentors junior engineers. Uses AI-assisted development tools responsibly while meeting enterprise security, compliance, and governance requirements.

Design, develop, and optimize Java backend services, APIs, API gateways, and data access layers for a cloud-native platform. Contribute to architecture and design reviews, Kubernetes-based deployments, automated testing, observability, performance optimization, and system reliability. Collaborate with cross-functional teams, participate in code reviews, and mentor junior engineers while delivering scalable, secure, and high-performance distributed systems.

Design, develop, and deploy high-volume, low-latency Java applications and microservices. Lead full development lifecycle, write testable code, manage releases, improve architecture, and support Agile/Scrum processes.

Develop and maintain scalable backend services for a cloud-native securities-based lending platform using Python, FastAPI, Java, and Spring Boot. Design REST APIs and microservices, deploy resilient AWS solutions, maintain CI/CD pipelines and automated tests, troubleshoot production issues, participate in architecture and Agile ceremonies, conduct code reviews, and mentor junior engineers.

Design, build, and optimize a multi-region, highly-available Java/Scala microservices data pipeline processing thousands of messages/sec. Improve performance, implement fraud-detection pipelines with ML (Kafka/Kafka Streams), deploy to multi-cloud Kubernetes, and push frequent production releases to maintain five-nines uptime.

Design, develop, test, deploy, and support scalable cloud-native applications using Java, Spring Boot, React, TypeScript, Node.js, PostgreSQL, microservices, and REST APIs. Build CI/CD pipelines, containerized deployments, integrations, observability, and secure distributed systems. Troubleshoot production issues and collaborate with Product, UX, QA, DevOps, Architecture, and clients. Workforce Management, Customer Experience, and contact center experience is advantageous.

Develop and maintain Elasticsearch’s Inference API and plugin framework, integrating internal and external AI inference providers. Responsibilities include API and protocol design, streaming, asynchronous execution, rate limiting, configuration, billing integration, error handling, open-source contribution reviews, incident response, and comprehensive unit, REST, and rolling-upgrade testing. The role requires strong Java expertise, low-level concurrency knowledge, API design skills, and collaboration across distributed teams.

Design, build, and maintain cloud-ready Java microservices for a banking modernization program. Develop REST APIs, integrate Kafka or messaging platforms, implement automated tests, and deploy containerized services through CI/CD pipelines using Docker and Kubernetes/OpenShift. Contribute to architecture, code reviews, performance, resilience, security, observability, and production releases while collaborating in an Agile team.

Design, develop, and maintain scalable Java and Spring Boot backend services in a distributed microservices environment. Build Kafka-based event-driven pipelines, participate in code reviews, collaborate with architects and product teams, and contribute to technical documentation and design decisions. The role requires current hands-on expertise in Java, Spring Boot, microservices, Kafka, concurrency, and modern Java features, along with Agile/Scrum experience and strong communication skills.

Leads application development and engineering teams responsible for modernizing legacy platforms. Drives full-stack design, architecture, programming, testing, system enhancements, and integration across technology and business functions. Uses AI tooling and prompt engineering to accelerate development, resolves complex technical and business problems, establishes coding standards, manages delivery, advises developers, and ensures compliance, risk management, and alignment with enterprise architecture.

Develop and maintain the Prime Sequel Platform's P&L allocation engine. Design scalable Java microservices, perform feasibility analysis, lead SDLC phases, ensure performance and compliance, mentor junior engineers, and collaborate with global stakeholders to deliver robust, production-grade financial systems.

The Senior Java Developer will lead the design and implementation of scalable solutions, mentor junior members, and collaborate effectively with stakeholders to enhance system capabilities and drive innovation within the team.