Remote Fullstack Developer - Java & React, SaaS Cloud

Appfire; Polska; Hybrid; PLN 220,000 - 320,000; Full time

Benefits offered by this job

Equity for employees

26 vacation days annually

Wellness Days (1 day per month)

Volunteer time off (24 hours)

CSR volunteering days

Learning & Development via Appfire Uni

Job summary

Appfire is hiring a Fullstack Developer (Java & React) to join the product team working on Workflow and Automation solutions. You’ll design and implement features using Java, Spring Boot, TypeScript, Node.js and React, building RESTful APIs and cloud-based SaaS components.

You’ll collaborate with product managers, UX/UI designers, and other developers in an agile, lean environment, focusing on code quality, automated testing, and continuous improvement. Remote-friendly with international teams.

Qualifications

• Minimum 3 years of solid commercial experience with Java 17 and Spring Boot, including developing and maintaining RESTful APIs.
• Strong practical experience with TypeScript and Node.js, particularly for backend logic, serverless functions, or API resolvers.
• Strong frontend development experience with React, including modern state management solutions such as Redux or TanStack Query and routing.
• Practical understanding of software design principles, design patterns, and application architecture.
• Experience writing automated tests, including unit and integration tests, and familiarity with tools such as JUnit 5, Mockito, Vitest, or Playwright.
• Experience using Git and Maven, with working knowledge of Docker and modern development workflows.
• Strong problem-solving skills, a hands-on approach, and a willingness to collaborate, experiment, learn, and continuously improve.
• Good English communication skills (B2 or higher)

Responsibilities

• Design, develop, and maintain product features using Java, Spring Boot, TypeScript, Node.js, and React.
• Build and maintain RESTful APIs, backend services, and frontend applications that support our Workflow and Automation solutions.
• Ensure high code quality through unit, integration, and end-to-end testing, code reviews, and collaborative problem-solving.
• Collaborate with product managers, UX/UI designers, and other development teams to deliver features that address customer needs.
• Contribute to the design, development, and continuous improvement of our cloud-based SaaS architecture.
• Help build reliable, scalable, and secure solutions, considering performance, concurrency, caching, and authorization.
• Investigate and resolve technical issues, including providing technical support for our customers.
• Share knowledge, contribute to team discussions, and support continuous learning and improvement across the development team.

Skills

Java

Spring Boot

TypeScript

Node.js

React

REST APIs

Testing

Git

Maven

Docker

Cloud/SaaS

Tools

JUnit 5

Mockito

Vitest

Playwright

Job description

Appfire is hiring a Fullstack Developer (Java & React) to join the product team working on Workflow and Automation solutions. You’ll design and implement features using Java, Spring Boot, TypeScript, Node.js and React, building RESTful APIs and cloud-based SaaS components.

You’ll collaborate with product managers, UX/UI designers, and other developers in an agile, lean environment, focusing on code quality, automated testing, and continuous improvement. Remote-friendly with international teams.