Senior Full-Stack Engineer: Java/Spring Boot + React

SmartRecruiters, Inc.; Dublin; On-site; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Health insurance

Language courses

Relocation program

Job summary

Miratech is seeking a Senior Full Stack Engineer to design, develop, and support scalable cloud-native applications powering WFM, CX, and operations. You will use Java and Spring Boot for backend, React with TypeScript for frontend, and Node.js for supporting components.

WFM/CX or contact-center experience is a plus. Responsibilities include API design, microservices, data modeling in PostgreSQL, cloud/container deployments, and CI/CD pipelines.

Qualifications

• 6+ years of full-stack software development experience including ownership of production applications.
• Strong hands-on experience with Java and Spring technologies, particularly Spring Boot, REST services, persistence, security, and automated testing.
• Solid frontend development experience with Angular or React, TypeScript, HTML, CSS, component-based design, state management, and modern testing practices.
• Familiarity with Node.js for lightweight services, integrations, build tooling, or supporting components.
• Proven experience designing REST APIs, microservices, and maintainable applications in distributed environments.
• Strong SQL skills and experience designing efficient data models in PostgreSQL or comparable relational databases.
• Experience developing, deploying, or supporting cloud-based and containerized applications.
• Excellent communication skills, including ability to produce clear technical documentation and lead client-facing workshops.
• Knowledge of OAuth2, OpenID Connect, JWT, and secure API design.
• Experience with Kafka, RabbitMQ, or comparable messaging and event-streaming technologies.
• Familiarity with Kubernetes, cloud platforms, observability tooling, and secure software delivery practices.

Responsibilities

• Design, develop, test, and maintain scalable backend services using Java, Spring Boot, and established software engineering practices.
• Build modern web applications using React, TypeScript, reusable components, responsive layouts, and accessible interaction patterns.
• Develop and consume REST APIs using an API-first approach; maintain clear OpenAPI/Swagger contracts and error handling.
• Design modular, maintainable solutions using microservices and appropriate object-oriented and event-driven design patterns.
• Use Node.js where appropriate for lightweight services, backend-for-frontend components, integrations, or development tooling.
• Design and optimize PostgreSQL data models and queries with attention to integrity, performance, and audit history.
• Design and implement reliable integrations with internal and external systems using REST APIs, webhooks, messaging, and other appropriate integration patterns.
• Containerize applications and contribute to cloud-based deployment patterns, configuration management, and environment consistency.
• Build and maintain Jenkins-based CI/CD pipelines with automated testing, quality gates, and repeatable deployments.
• Instrument applications with structured logging, metrics, tracing, and actionable error reporting.
• Troubleshoot functional and production issues and improve application performance, resilience, scalability, and maintainability.
• Collaborate with Product, UX, QA, DevOps, Architecture, and other engineers through design sessions, code reviews, planning, and continuous improvement.

Skills

Java

Spring

REST APIs

React

TypeScript

Node.js

PostgreSQL

CI/CD

Docker

Kubernetes

OpenAPI/Swagger

Cloud

GIT

Tools

Angular

React

PostgreSQL

Kafka

RabbitMQ

Docker

Kubernetes

Job description

Miratech is seeking a Senior Full Stack Engineer to design, develop, and support scalable cloud-native applications powering WFM, CX, and operations. You will use Java and Spring Boot for backend, React with TypeScript for frontend, and Node.js for supporting components.

WFM/CX or contact-center experience is a plus. Responsibilities include API design, microservices, data modeling in PostgreSQL, cloud/container deployments, and CI/CD pipelines.