Fullstack Java Developer

ALOIS Solutions; Województwo małopolskie; On-site; PLN 140,000 - 210,000; Full time

Job summary

ALOIS Solutions is seeking a Mid-Senior Java Full Stack Developer to join a global technology team. You will design, develop, deploy, and maintain scalable web applications and cloud-native services, collaborating with international teams to deliver high-quality digital solutions.

You will work across the full software development lifecycle, taking on complex technical challenges, following clean coding practices, and contributing to robust, maintainable codebases.

Qualifications

• Strong hands-on experience with Java.
• Expertise in Spring Boot.
• Experience with Microservices Architecture.
• Strong knowledge of RESTful API Development.
• Frontend experience with ReactJS is mandatory.
• Experience designing and deploying CI/CD pipelines.
• Familiarity with DevOps practices and tooling.
• Experience with Azure services.
• Proficient in PostgreSQL database design and optimization.
• Excellent communication and collaboration skills.

Responsibilities

• Develop modern web applications and backend services.
• Design, build, and maintain Java Spring Boot microservices.
• Develop front-end apps using ReactJS.
• Build and consume REST APIs.
• Deploy, monitor, and maintain services.
• Implement and optimize CI/CD pipelines.
• Manage cloud-based solutions on Azure.
• Collaborate with global teams and stakeholders.
• Troubleshoot production issues to ensure performance.
• Contribute to clean, efficient code and code reviews.

Skills

Java

Spring Boot

Microservices

REST APIs

ReactJS

CI/CD

DevOps

Agile/Scrum

Communication

Problem Solving

Tools

Git

Azure

PostgreSQL

Job description

We are looking for a talented Mid-Senior Java Full Stack Developer with strong expertise in Java, Spring Boot, ReactJS, Microservices, Azure, and PostgreSQL to join a dynamic global technology team. You will be responsible for designing, developing, deploying, and maintaining scalable web applications and cloud-native services while collaborating with international teams to deliver high-quality digital solutions.

This role is ideal for professionals who enjoy solving complex technical challenges, following clean coding practices, and working across the entire software development lifecycle.

Key Responsibilities

• Develop modern web applications and backend services based on business and technical requirements.
• Design, build, and maintain scalable Java Spring Boot microservices.
• Develop responsive front-end applications using ReactJS.
• Build and consume REST APIs to support enterprise applications and integrations.
• Deploy, monitor, maintain, and continuously improve application services.
• Implement and optimize CI/CD pipelines and DevOps best practices.
• Manage cloud-based solutions using Microsoft Azure services.
• Work with Azure Functions and Azure Data Factory to support data-driven applications.
• Design and optimize database solutions using PostgreSQL.
• Contribute to clean, reusable, maintainable, and efficient codebases.
• Participate in code reviews and promote software engineering best practices.
• Collaborate with product teams, architects, DevOps engineers, and stakeholders globally.
• Troubleshoot, debug, and resolve production issues while ensuring system stability and performance.

Required Skills & Experience

• Strong hands-on experience with Java
• Expertise in Spring Boot
• Experience with Microservices Architecture
• Strong knowledge of RESTful API Development

Frontend Development

• Proven experience with ReactJS (Mandatory)
• Understanding of modern front-end development practices
• CI/CD implementation and maintenance
• DevOps tools and deployment best practices

Database

• Strong experience in PostgreSQL
• Database design, optimization, and performance tuning

Additional Requirements

• Experience with Git-based version control
• Strong problem-solving and analytical skills
• Knowledge of Agile/Scrum methodologies
• Excellent communication and collaboration skills