Developer java Jobs in Kelsterbach

Position : Freelance Java Developer

Contract Length : 4-6 months initially (extensions possible)

Location : 100% Remote

Start Date : June / July 2025 (July start preferred)

Language : English

About Us

We are developing a cutting-edge international marketplace platform that connects businesses and consumers to buy and sell refurbished phones. As part of this initiative, we are building a scalable greenfield MVP designed for global use. This is a fantastic opportunity to work with an agile team on a fast-paced and impactful project.

Role Overview

We are seeking an experienced Java Developer to join our agile development team. You will play a critical role in enhancing and scaling the MVP, focusing on the core Spring application. This includes building new features, ensuring high performance, and integrating third-party services related to payments and logistics.

Our team prioritizes clean, well-documented, and well-tested code, so a strong background in unit testing and attention to detail is essential.

Responsibilities

• Collaborate with the Product Owner, Engineering Manager, and Developers to deliver high-quality solutions.
• Develop and scale the core Spring application for a B2C marketplace.
• Work on REST APIs, integrating third-party payment and logistics services.
• Write and maintain unit tests (e.g., JUnit, Mockito) for robust code quality.
• Contribute to the documentation and best practices of the platform.

Required Skills and Experience

Preferred Skills

What We Offer

How to Apply

If this sounds like the perfect opportunity for you, please send your :

We will review your application and schedule a call to discuss the position further.

Referral Program : If this role isn’t for you, refer a candidate, and if they are successfully hired, you’ll be rewarded!

Join us to make an impact in the global marketplace space!