Find React developer Jobs in Dublin, D

Senior Manager, Software Engineering
Optum —Dublin, County Dublin
- Full-time
- System design
- Java
- Master's degree
Principal Software Development Engineer
CarGurus —Dublin, County Dublin
- €90,000–€125,000 a year
- Java
- AWS
- JavaScript
Lead Software Engineer - Python
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- System design
- AWS
- Agile
Senior Java Full Stack Developer
Tata Consultancy Services —Dublin, County Dublin
- Call to connect
- Oracle
- Java
- SQL
8d
Senior Engineer, Applied AI
EXL Service —Dublin, County Dublin
- Full-time
- Hybrid work
- Microsoft Excel
- Azure
- Master's degree
Senior Software Engineer, Full-Stack
Ripple —Dublin, County Dublin
- Full-time
- ERP systems
- Java
- SQL
Quick apply
Safety Engineer - Free Tier Abuse
ElevenLabs —Dublin, County Dublin
- Full-time
- Remote
- DevOps
- Data analysis skills
- SQL
Forward Deployed Engineer
Nearform —Dublin, County Dublin
- From €75,000 a year
- Full-time
- Remote
- Master's degree
- Python
- Annual leave
Engineering Manager (m/f/d)
Affinidi —Dublin, County Dublin
- Remote
- AWS
- JavaScript
- Leadership
Quick apply
8d
Software Architect - .NET + Azure
Tata Consultancy Services —Dublin, County Dublin
- Full-time
- Hybrid work
- Azure
- JavaScript
- Software development
3d
C++ Backend Engineer
Elwood Roberts —Dublin, County Dublin
- €50,000–€800,000 a month
- Full-time
- AWS
- C++
- JavaScript
Quick apply
Manager, Engineering
MongoDB —Dublin, County Dublin
- Hybrid work
- Azure
- Java
- AWS
Data Centre Shift Operations - Mechanical AP
Centrica Business Solutions —Dublin, County Dublin
- Engineering
- No degree
Data Centre Shift Operations - Electrical AP
Centrica Business Solutions —Dublin, County Dublin
- Engineering
- No degree
Senior Software Engineer, Observability
MongoDB —Dublin, County Dublin
- On call
- Azure
- Java
- AWS
Software Engineer
Sony Interactive Entertainment —Dublin, County Dublin
- €69,500–€104,300 a year
- Hybrid work
- Computer Science
- C++
- Bachelor's degree
- Wellness program
- Annual leave
2h
Senior Software Engineer
Sony Interactive Entertainment —Dublin, County Dublin
- €87,800–€131,800 a year
- Hybrid work
- Computer Science
- C++
- Bachelor's degree
- Wellness program
- Annual leave
2h

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Erasmus Web Developer
Stay Planet —Dublin, County Dublin
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Senior Manager, Software Engineering

Optum -
Dublin, County Dublin

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Job details

Full-time

Qualifications

CI/CD
Gradle
Node.js
Law
React
System design
NoSQL
Git
J2EE
Java
Master's degree
JavaScript
Distributed systems
Mentoring
Redux
Angular
GitHub
Kafka
Maven
AI
Leadership
Jenkins
Communication skills
Python
Spring framework

Full job description

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by diversity and inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health equity on a global scale. Join us to start Caring. Connecting. Growing together.

Careers with Optum offer flexible work arrangements and individuals who live and work in the Republic of Ireland will have the opportunity to split their monthly work hours between our Dublin office and telecommuting from a home-based office in a hybrid work model.

Primary Responsibilities:

Lead the architecture and engineering of enterprise scale, mission critical platforms supporting critical business operations
Architect distributed systems with solid emphasis on scalability, resilience, performance, security, and operational excellence
Design and evolve microservices based architectures using Java, Spring Boot, and Spring Cloud, alongside modern front end frameworks such as React and Angular
Own backend architecture and system design, producing high level and detailed architectural blueprints that guide consistent implementation
Provide technical and architectural leadership across full stack and Generative AI initiatives, leveraging React, Node.js, Python, LangChain, and LangGraph
Champion adoption of modern engineering productivity tools (e.g., GitHub Copilot) to improve developer efficiency, quality, and consistency
Lead, mentor, and grow the engineering organization, fostering technical excellence, career development, and solid team engagement
Partner closely with product, and business stakeholders to align priorities, translate business needs into technical outcomes, and ensure predictable delivery
Establish and enforce engineering best practices, design patterns, and architectural standards across teams
Own delivery commitments and quality, ensuring adherence to Agile practices through active participation in design reviews, code reviews, and ceremonies
Stay current on advances in AI, ML, and software engineering, guiding thoughtful, value driven adoption within the organization
Provide strategic direction for machine learning solutions and data pipelines when applicable
Ensure compliance with company policies, employment terms, and organizational directives, maintaining flexibility to adapt to evolving business needs and operating models

You will be rewarded and recognized for your performance in an environment that will challenge you and give you clear direction on what it takes to succeed in your role, as well as providing development for other roles you may be interested in.

Required Qualifications:

Graduate degree or equivalent professional experience
Proven significant experience developing and supporting enterprise Java/J2EE applications
Proven extensive experience developing applications using React.js
Proven experience in AI or large language model (LLM) application development, evaluation, or operationalization
Demonstrated experience working with RAG pipelines, tool calling, prompt regression testing, or agent orchestration frameworks
Proven experience with modern frontend development, including React 18, streaming UI patterns, Storybook, and component-driven development
Demonstrated solid understanding of system design, architectural decision-making, and software design patterns
Demonstrated solid understanding of full-stack architectures, including JavaScript, React, Redux, Node.js, and Python
Proven hands-on experience with event-driven architecture, asynchronous processing, and messaging technologies such as Kafka, RabbitMQ, or similar platforms
Demonstrated exposure to Generative AI technologies, including GitHub Copilot, LangChain, LangGraph, and agent-based solutions
Proven solid experience designing and implementing cloud-native solutions
Demonstrated expertise in relational and NoSQL database technologies
Demonstrated solid proficiency with CI/CD pipelines and tools, including Jenkins, Git, Maven, Gradle, and SonarQube
Proven experience leading and mentoring engineering teams within offshore or distributed delivery models
Demonstrated solid communication and stakeholder management skills, with the ability to balance technical depth and leadership accountability

Please note you must currently be eligible to work and remain indefinitely without any restrictions in the country to which you are making an application. Proof will be required to support your application.

At UnitedHealth Group, our mission is to help people live healthier lives and make the health system work better for everyone. We believe everyone-of every race, gender, sexuality, age, location and income-deserves the opportunity to live their healthiest life. Today, however, there are still far too many barriers to good health which are disproportionately experienced by people of color, historically marginalized groups and those with lower incomes. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes - an enterprise priority reflected in our mission.

Diversity creates a healthier atmosphere: Optum is an Equal Employment Opportunity employer and all qualified applicants will receive consideration for employment without regard to gender, civil status, family status, sexual orientation, disability, religion, age, race, and membership of the Traveller community, or any other characteristic protected by law. Optum is a drug-free workplace. © 2026 Optum Services (Ireland) Limited. All rights reserved.

#BBMEMEA

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