Senior Smartcard Application Developer Java & Cryptography - Threatxintel Cyber Labs

Key Responsibilities

• Design, develop, and maintain secure Java back‑end services for smartcard and secure element platforms.
• Implement cryptographic algorithms and protocols, ensuring compliance with industry standards.
• Build responsive React interfaces for managing identity and access solutions.
• Develop and document RESTful APIs for integration with enterprise systems.
• Collaborate with security architects to perform threat modeling and code reviews.

Requirements

• 5+ years of professional experience in Java development with a focus on security.
• Deep knowledge of smartcard technologies, secure elements, and cryptographic libraries.
• Proficiency in React and modern front‑end tooling.
• Strong understanding of secure application design, threat modeling, and secure coding practices.
• Excellent problem‑solving skills and ability to work in a fast‑paced, collaborative environment.