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Principal Mern Developer - React, Node

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Job Description - Principal Mern Developer - React, Node

An exciting opportunity has arisen for a Principal MERN Developer to join a pioneering innovation team based in Dublin. This role is perfect for someone who thrives on building rapid prototypes and delivering impactful digital solutions using the latest technologies, including Generative AI. You will be highly skilled across React and Node.

Key Responsibilities:

  • Collaborate with cross-functional teams to design, develop, and deliver scalable full stack applications that leverage Generative AI and advanced web technologies.
  • Provide hands-on technical leadership by setting standards for robust architecture, code quality, and timely delivery within the product engineering team.
  • Engage in rapid prototyping cycles, transforming innovative ideas into functional proof-of-concept solutions that address real business challenges.
  • Guide the implementation of secure, high-performance user interfaces using React, Next.js or similar frameworks, ensuring seamless user experiences across devices.
  • Develop backend services with Node.js (Nest.js) and integrate data sources via RESTful APIs and JSON formats for efficient data flow.
  • Utilise cloud platforms such as AWS, GCP or Azure for deploying scalable applications and managing infrastructure requirements.
  • Participate actively in Agile ceremonies, contributing to sprint planning, retrospectives, and continuous improvement initiatives within the team.
  • Mentor junior developers by sharing knowledge, conducting code reviews, and fostering a supportive learning environment.
  • Communicate complex technical concepts clearly to both technical and non-technical stakeholders during design sessions and presentations.

Key Requirements:

  • A minimum of five years' commercial experience in Ireland
  • Proven ability to architect systems across both frontend and backend using modern JavaScript frameworks such as React (with Tailwind or Next.js) and Node.js (Nest.js).
  • Deep understanding of design patterns for high-performance UI development along with strong skills in HTML5, CSS3, JavaScript, DOM manipulation, and responsive web design principles.
  • Experience integrating data sources via JSON and RESTful APIs for seamless communication between services.
  • Demonstrated proficiency in debugging complex issues and troubleshooting throughout the software development lifecycle.
  • Familiarity with automated testing strategies including unit testing frameworks and best practices for maintaining code quality.
  • Hands-on experience working within Agile environments using management tools like JIRA or Confluence for tracking progress.
  • Exposure to cloud platforms such as AWS, GCP or Azure for deploying applications at scale; familiarity with Apigee as an API Gateway is advantageous.
  • Knowledge of event-driven architectures, asynchronous programming patterns (such as RxJS), microservices design principles, secure coding practices, unidirectional data flow (Redux), GitHub workflows including branching strategies.
  • Excellent verbal communication skills with confidence presenting ideas or solutions in front of audiences; ability to mentor junior team members effectively.

Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates

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