Java Full Stack Developer – Spring Boot, React & Cloud

Hadron Talent -Hadronfinsys; Göteborgs kommun; On-site; SEK 700,000 - 1,000,000; Part time

Job summary

Hadron Talent -Hadronfinsys is seeking a seasoned Java Full Stack Developer to design and build scalable enterprise applications in Sweden. You will work across backend services and frontend apps, implementing RESTful APIs, microservices, and cloud integrations while embracing modern frontend with React and TypeScript.

The role emphasizes collaboration with architects, product owners and developers to deliver robust software, align with CI/CD, testing and DevOps practices, and participate in an

Qualifications

• 5+ years of full-stack development experience.
• Strong Java 11+ and Spring Boot expertise.
• Experience building REST APIs and microservices.
• Frontend experience with React, TypeScript and Redux.
• Knowledge of GraphQL and asynchronous messaging/processing.

Responsibilities

• Design, develop and maintain applications with Java 11+ and Spring Boot.
• Build RESTful APIs, microservices and backend services.
• Develop responsive frontends using React, TypeScript and Redux.
• Integrate services via REST APIs, GraphQL and async messaging.
• Work with PostgreSQL and MongoDB databases.
• Develop and support cloud-based apps using AWS.
• Collaborate with architects, product owners and developers to deliver solutions.
• Follow Agile practices and contribute to continuous improvement.
• Support CI/CD, testing, deployments and production troubleshooting.

Skills

Full-stack development

Java 11+

Spring Boot

REST APIs

Microservices

React

TypeScript

Redux

GraphQL

PostgreSQL

MongoDB

AWS

Git

CI/CD

Agile

AI-assisted coding

Job description

Java Full Stack Developer – Spring Boot, React & Cloud

Location: Sweden

Contract Type: Contract

Role Overview

We are looking for an experienced Java Full Stack Developer with strong expertise in Java, Spring Boot, microservices and modern frontend development using React and TypeScript.

The successful candidate will contribute to the design, development, integration and maintenance of scalable enterprise applications. The role combines backend engineering, frontend development, API integration, cloud technologies and continuous delivery practices.

Key Responsibilities

• Design, develop and maintain applications using Java 11 or later and Spring Boot.
• Build RESTful APIs, microservices and scalable backend services.
• Develop responsive frontend applications using React, TypeScript and Redux.
• Integrate applications through REST APIs, GraphQL and asynchronous messaging or processing patterns.
• Work with relational and NoSQL databases, including PostgreSQL and MongoDB.
• Develop and support cloud-based applications using AWS services.
• Work with AWS SNS, SQS and Lambda for messaging and event-driven processing.
• Write maintainable, reusable and testable code and participate in code reviews.
• Support automated testing, CI/CD pipelines, deployments and production troubleshooting.
• Collaborate with architects, product owners, developers and other stakeholders to understand requirements and deliver technical solutions.
• Follow Agile development practices and contribute to continuous improvement.
• Use AI-assisted development tools where appropriate to improve productivity and code quality.

Mandatory Skills

• 5+ years of full-stack development experience.
• Strong hands-on experience with Java 11+ and Spring Boot.
• Experience developing REST APIs and microservices.
• Frontend development experience with React, TypeScript and Redux.
• Knowledge of GraphQL and asynchronous communication or processing patterns.
• Experience with PostgreSQL, MongoDB or comparable relational and NoSQL databases.
• Experience with AWS services, particularly SNS, SQS and Lambda.
• Familiarity with Git, CI/CD pipelines and software delivery practices.
• Strong analytical, problem-solving and debugging skills.
• Good communication and collaboration skills.

Preferred Skills

• Experience with cloud-native architecture and distributed systems.
• Knowledge of DevOps practices and automated deployment processes.
• Experience with automated testing and production support.
• Familiarity with AI-assisted coding and development tools.
• Experience working in Agile teams and collaborating across technical functions.

Candidate Profile

The ideal candidate is a strong full-stack engineer who can independently develop backend services and frontend applications, integrate distributed systems and contribute to reliable cloud-based delivery. The candidate should demonstrate sound engineering practices, effective communication and the ability to work collaboratively in an Agile environment.