Senior Back End Engineer (Java)

TechSurge Inc

Full-time IT & Technology
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Location
karachi division, sindh, Pakistan
Posted
June 04, 2026

Job Description

Key Responsibilities

  • Design and build Java-based microservices that securely mediate between Bank's core banking engine and the external partner ecosystem.
  • Implement resilient, scalable APIs with clear service boundaries and observability.
  • Develop proprietary fintech logic for Beyond Banking transactions, including:
    • Travel bookings
    • eSIM provisioning
    • E‑commerce and marketplace purchases
  • Ensure tight linkage with core systems such as digital accounts, payments, loyalty, and settlement layers.
  • Architect secure, high‑availability integrations with super‑app orchestrators, travel platforms, fintech aggregators, and service providers.
  • Handle failures, retries, and service degradation gracefully.
  • Implement advanced authentication and authorization using OAuth2, OpenID Connect, and token‑based security models.
  • Protect sensitive customer data across all third‑pa...