Senior Java Backend Developer
TAWANTECH · Remote, EG
Posted Feb 4, 2026
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About the job
We are looking for a **Java Backend Developer** with experience in **payment systems** to develop secure and scalable backend services for financial transactions.
Responsibilities
* Develop and maintain backend services using Java and Spring Boot.
* Build and integrate payment processing systems.
* Develop RESTful APIs and microservices.
* Ensure system security and compliance (PCI-DSS).
* Optimize performance and reliability.
* Fix bugs and support production systems.
* Collaborate with cross-functional teams.
Requirements
* Bachelor’s degree in Computer Science or related field.
* 4+ years of Java backend experience.
* Strong knowledge of Java, Spring Boot, and REST APIs.
* Experience in payments, fintech, or banking systems.
* Knowledge of databases (MySQL/PostgreSQL).
* Familiarity with Git and CI/CD tools.
* Understanding of security standards (OAuth, JWT, encryption)..