Fullstack Developer - Java & React

About the role:

We are 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’ll 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’ll 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, fostering a true sense of ownership and connection to our growth

Time Off & Wellbeing

• 26 paid vacation days annually, regardless of tenure
• Wellness Days - one fully paid day off each month for an unplanned emergency, rest, or recovery needs available on an ad-hoc basis (not carried over month-to-month)
• 24 hours of paid volunteer time to support meaningful causes outside of work
• 3 fully paid volunteering days each year through Appfire Town, our Corporate Social Responsibility (CSR) program supporting local communities

Learning & Development: grow with Appfire University — our custom, on-demand learning platform designed to support continuous learning and professional development.

Health & Insurance

• Fully covered Luxmed private healthcare plan
• Option to extend coverage to your partner or add personalized upgrades
• UNUM life insurance, fully paid by Appfire

Lifestyle & Benefits

• MyBenefit Platform with 150 PLN per month to spend on: a Multisport card, shopping, restaurants, entertainment experiences
• Lunch Card with 300 PLN monthly for groceries or dining out via a virtual prepaid Pluxee card (Google Pay or Apple Wallet supported)

Remote Work Support: receive 200 PLN net per month as a home office allowance to help cover electricity and internet costs while working remotely.