Solution Architect Java

7 days ago

Lahore, Punjab, Pakistan Abacus Full time
Overview

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
  • 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.
Seniority level
  • Not Applicable
Employment type
  • Full-time
Job function
  • Engineering and Information Technology
Industries
  • IT Services and IT Consulting
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