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AppfireFullstack Developer (Java & React)
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Before you apply
LocationBulgaria, Poland
Work moderemote
Typefull-time
SenioritySenior
DepartmentEngineering
EquityIncluded
Company size501–1,000 people
PostedOct 30, 2026 · 1w ago
Verified live3d ago
Reposted once in the last 6 monthsEarliest listing first seen Oct 16, 2026
How we check a job is still liveAt a glanceSummarised by Seekless from the posting.
Solid commercial experience with Java 17 and Spring Boot, including RESTful APIs, Spring Data JPA, and Spring Data JDBC
Strong practical experience with TypeScript and Node.js for backend development, serverless functions, or API resolvers
Strong frontend development experience with React 18, modern state management solutions such as Redux or TanStack Query, and routing libraries
Good understanding of software design principles, design patterns, and application architecture, including their trade-offs
Experience writing automated tests, including unit, integration, and end-to-end tests, using tools such as JUnit 5, Mockito, Vitest, and Playwright
Proficiency with Git, Maven, Docker, and a development IDE
Strong problem-solving skills, a hands-on approach, and the ability to collaborate effectively in an agile team
Good English communication skills (B2 level or higher), along with a willingness to learn and continuously develop professionally
Skills
Java
Spring Boot
TypeScript
Node.js
React
Redux
TanStack Query
Git
Maven
Docker
JUnit 5
Mockito
Vitest
Playwright
RESTful APIs
Spring Data JPA
Spring Data JDBC
Benefits
Equity
Paid vacation
Wellness days
Paid volunteer time
Learning development
Health insurance
Fitness benefit
Food vouchers
Transportation benefit
Baby bonus
Remote work
About the company
At Appfire, we believe that great work happens when people get to choose how they work. After 20 years of creating software that empowers teams to break silos and collaborate seamlessly, we’ve learned that one size does not fit all. We’re a team of 800+ employees, working remotely across 28 countries. Our flagship products include: JXL, Comala Document Management, 7Pace Time Tracker, Jira Misc Workflow Extensions, and BigPicture.
Here you can read some of our customer stories: https://appfire.com/resources/resource-library/customer-stories
About the role:
We’re looking for an experienced Fullstack Developer (Java & React) to join our product team and help build and evolve our Workflow and Automation solutions, used by thousands of companies worldwide. You’ll work in a small, empowered Scrum team that values ownership, collaboration, and continuous improvement. You’ll collaborate closely with Product Owners, Product Managers, UX/UI designers, and other development teams to deliver features driven by user needs and business goals. You’ll contribute to a complex, well-designed SaaS application and help us continuously improve its architecture, performance, and reliability.
What you’ll do:
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Design, develop, and maintain product features across the backend and frontend of our Workflow and Automation solutions.
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Build and maintain backend services and RESTful APIs using Java, Spring Boot, TypeScript, and Node.js.
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Develop responsive and maintainable frontend functionality using React and modern state management solutions.
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Ensure high code quality through unit, integration, and end-to-end testing, code reviews, and collaborative problem-solving.
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Collaborate with Product Owners, Product Managers, UX/UI designers, and other development teams to deliver valuable product improvements.
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Contribute to the evolution of our SaaS architecture, supporting scalability, reliability, and the needs of thousands of tenants.
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Monitor, troubleshoot, and optimize application performance and reliability in production.
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Share knowledge, support teammates, and provide technical assistance to customers when needed.
What you’ll need:
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Solid commercial experience with Java 17 and Spring Boot, including RESTful APIs, Spring Data JPA, and Spring Data JDBC.
•
Strong practical experience with TypeScript and Node.js for backend development, serverless functions, or API resolvers.
•
Strong frontend development experience with React 18, modern state management solutions such as Redux or TanStack Query, and routing libraries.
•
Good understanding of software design principles, design patterns, and application architecture, including their trade-offs.
•
Experience writing automated tests, including unit, integration, and end-to-end tests, using tools such as JUnit 5, Mockito, Vitest, and Playwright.
•
Proficiency with Git, Maven, Docker, and a development IDE.
•
Strong problem-solving skills, a hands-on approach, and the ability to collaborate effectively in an agile team.
•
Good English communication skills (B2 level or higher), along with a willingness to learn and continuously develop professionally.
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
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26 paid vacation days annually, regardless of tenure
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12 Wellness Days — one fully paid day off each month to recharge, available on an ad-hoc basis and not carried over month to month
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24 hours of paid volunteer time to support meaningful causes outside of work
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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 & Lifestyle
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Private health insurance through UNIQA, fully covered by Appfire Bulgaria
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Multisport Card with access to hundreds of gyms, studios, and swimming pools across Bulgaria, fully paid by Appfie
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Food vouchers via a prepaid Pluxee lunch card with a monthly allowance
Transportation — Employees in Sofia receive a fully paid Sofia City Transport Card, providing access to all forms of public transportation within the city.
Family Support —Employees receive a one-time net Baby Bonus upon the birth of a child.
Flexibility — This role is fully remote within Bulgaria
Market recognition
Appfire has been consistently recognized for company growth, culture, corporate social responsibility, and product excellence and has been included among the Deloitte Technology Fast 500, Inc. Best Workplaces, BuiltIn Best Places to Work, and Inc. 5000. Learn more about our accomplishments, which would not be possible without our team members, partners, and customers: https://appfire.com/awards.
Equal Employer Opportunity (EEO)
Appfire is an equal opportunity employer and does not discriminate based on race, color, religion, sex (including pregnancy), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, veteran status, or any other protected characteristic as defined by applicable law. Our commitment extends to all employment practices, including recruitment, hiring, training, promotion, compensation, benefits, and termination.