Java Fullstack Developer (with React)

Mindbox Sp. z o.o.; Warszawa; Hybrid; PLN 180,000 - 260,000; Full time

Job summary

Mindbox Sp. z o.o. in Warsaw is seeking a specialist (Mid/Regular) or senior specialist to develop robust backend services with Java/Spring Boot and to build sleek frontend features in React.

Join a collaborative, agile team in a hybrid work setup (1-2 days in the office) focusing on high-quality, secure solutions, REST APIs, and integration with external systems.

Qualifications

• 4+ years of experience developing applications.
• Strong knowledge of Java and Spring Boot.
• Hands-on experience with React.
• Solid understanding of TypeScript and HTML5.
• Experience with REST APIs.
• Good knowledge of SQL.
• Familiarity with Git.
• Understanding of secure web application practices.

Responsibilities

• Developing backend services using Java and Spring Boot.
• Building and enhancing frontend applications in React.
• Designing and implementing REST APIs.
• Integrating applications with external systems.
• Writing and maintaining unit and integration tests.
• Participating in code reviews.
• Ensuring performance, quality, and security of applications.
• Collaborating with other product team members.
• Note: Detailed project information will be shared during the recruitment process.

Skills

Java

Spring Boot

React

TypeScript

HTML

SQL

Git

Tools

Kafka

kube

Oracle

Job description

specialist (Mid / Regular), senior specialist (Senior)

remote recruitment

Additional information

Specializations:

Full-stack

Technologies we use

Expected

• Java
• Spring Boot
• React
• TypeScript
• HTML
• SQL
• Git

Optional

• Kafka
• kube
• Oracle

Operating system

About the project

• You’ll join our client's team focused on developing cutting-edge business applications in a dynamic and collaborative environment. If you thrive on building robust backend systems while contributing to sleek, user-friendly frontends, this role is for you.
• Sounds like your kind of challenge?

This is how we organize our work

This is how we work

• agile

Your responsibilities

• Developing backend services using Java and Spring Boot.
• Building and enhancing frontend applications in React.
• Designing and implementing REST APIs.
• Integrating applications with external systems.
• Writing and maintaining unit and integration tests.
• Participating in code reviews.
• Ensuring performance, quality, and security of applications.
• Collaborating with other product team members.
• Note: Detailed project information will be shared during the recruitment process.

Our requirements

• 4+ years of experience in developing applications.
• Strong knowledge of Java and Spring Boot.
• Hands-on experience with React.
• Solid understanding of TypeScript and HTML5.
• Experience with REST APIs.
• Good knowledge of SQL.
• Familiarity with Git.
• Understanding of secure web application practices.

Optional

• Experience with Kafka.
• Cloud technologies (e.g., Azure).
• Databases like PostgreSQL or Oracle.
• Previous experience in enterprise environments.

What we offer

• Flexible cooperation model
• Hybrid work setup – 1-2x/week from the office in Warsaw
• Collaborative team culture – work alongside experienced professionals eager to share knowledge
• Continuous development – access to training platforms and growth opportunities
• Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
• High quality equipment – laptop and essential software provided

This is how we work on a project

• DevOps

sharing the costs of sports activities

private medical care

sharing the costs of professional training & courses

life insurance

• Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.
• At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe.
• Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.