Solution Architect Java / Integration

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.