Fullstack Developer (Java & React) - Appfire

About the Role

Appfire is looking for an experienced Fullstack Developer (Java & React) to join our product team working on Appfire’s Workflow and Automation solutions, used by thousands of companies worldwide.

You will collaborate closely with product managers, UX/UI designers, and other developers to build and improve reliable, scalable products that help customers automate their workflows. Our teams work in an agile and lean environment, with small, empowered Scrum teams, effective sprints, and a strong focus on ownership and continuous improvement. You will also have the opportunity to contribute to our SaaS architecture and help shape the future of our cloud solutions.

What You’ll Do

• 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.

What You'll Need

• 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).

Benefits & Perks

• Equity: Every Appfire team member is eligible for company equity.
• Time Off & Wellbeing: 26 paid vacation days annually, monthly paid Wellness Days for emergencies or rest, 24 hours of paid volunteer time, plus 3 fully paid volunteering days via Appfire Town.
• Learning & Development: Access to Appfire University, our custom on-demand learning platform.
• Health & Insurance: Fully covered Luxmed private healthcare (with options to add partners) and UNUM life insurance.
• Lifestyle Perks: MyBenefit Platform allowance (150 PLN/month) for Multisport cards, shopping, or entertainment; virtual prepaid Lunch Card (300 PLN/month).
• Remote Work Support: 200 PLN net monthly home office allowance to assist with electricity and internet costs.