### Job Summary: We are seeking a highly skilled and experienced Senior Java Developer with deep expertise in designing and implementing robust integration solutions for the telecommunications and fintech sectors. The ideal candidate will have a strong command of modern Java-based development, API architecture, and security protocols, along with a solid understanding of industry-specific standards such as TM Forum Open APIs and Open Banking frameworks. ### Key Responsibilities: #### Java Development & API Engineering - Design, develop, and maintain scalable backend systems and microservices using Java (Spring Boot, Jakarta EE). - Build and expose RESTful APIs aligned with TM Forum Open APIs (TMF), CAMARA standards, and Open Banking specifications (UK/PSD2). - Lead the development of API gateway policies (throttling, caching, quota) using platforms such as Apigee, Kong, or MuleSoft. #### Security & Identity Integration - Implement secure authentication and authorization flows using OAuth 2.0, OpenID Connect, and integrate with IdPs like Okta, Azure AD, or - Ping Identity. - Ensure APIs are compliant with Consent Management and data privacy mandates. #### Domain Expertise: Telco & Fintech - Build and integrate Java modules for OSS/BSS systems, SIM lifecycle management, provisioning, and partner APIs in telco ecosystems. - Develop interfaces for banking platforms including KYC/AML workflows, account aggregation (AIS), and payment initiation (PIS). - Translate regulatory requirements (e.g., PSD2, GDPR) into compliant technical implementations. #### ️ Cloud & Architecture - Design cloud-native or hybrid Java-based solutions in multi- region/multi-tenant environments. - Work with event-driven architectures, message queues (Kafka, RabbitMQ), and integration platforms (iPaaS). - Collaborate with architects and DevOps teams to ensure CI/CD, scalability, and fault tolerance. #### Collaboration & Documentation: #### Deliver high-quality technical documentation, solution blueprints, and developer guides. - Present solutions to technical and non-technical stakeholders, participating in sprint planning and reviews. ### Key Requirements: - 8-10 years minimum hands-on Java development experience in large-scale integration projects. - Proficient in Spring Boot, REST API development, and API gateway patterns. - Proven industry experience in telecom (OSS/BSS) and/or fintech/banking integration. - Hands-on experience with OAuth2, OpenID Connect, and API security frameworks. - Familiarity with compliance requirements like GDPR, PCI-DSS, PSR, and regional data protection laws. - Experience with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes). - Strong communication and documentation skills.