Java Backend Engineer - APIs, Cloud & Fintech (3-5 yrs)

abacus-consulting-3

Lahore

On-site

PKR 1,200,000 - 2,400,000

Full time

3 days ago
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Job summary

We are seeking a skilled Java Developer in Lahore with 3-5 years of experience to join the integration team. You will design and develop robust backend systems and APIs in telecom and fintech contexts, leveraging trends like TM Forum Open APIs and Open Banking.

You will work on API security, OAuth2/OIDC, and cloud deployments while collaborating with cross-functional teams to deliver scalable services.

Qualifications

  • 3-5 years of experience in Java backend development (Spring Boot/Jakarta EE).
  • Strong understanding of RESTful APIs and integration patterns.
  • Familiarity with telecom (OSS/BSS) or fintech (Open Banking, PSD2) domains is a plus.
  • Exposure to API security protocols (OAuth2, OIDC) and cloud platforms.
  • Good communication and problem-solving skills; team player with a proactive mindset.

Responsibilities

  • Develop and maintain scalable backend systems and microservices using Java (Spring Boot).
  • Build and consume RESTful APIs, aligning with best practices and standards such as TM Forum Open APIs or Open Banking (PSD2).
  • Collaborate in the design and implementation of API gateway policies (rate limiting, caching, authentication) using Apigee, Kong, or MuleSoft.
  • Integrate OAuth2.0 and OpenID Connect for secure API authentication.
  • Work with Identity Providers like Okta, Azure AD, or Ping Identity for secure access flows.
  • Support data privacy and consent management practices in line with GDPR.
  • Develop Java components for telecom systems like OSS/BSS, SIM lifecycle, or partner API integrations.
  • Support interfaces related to banking services like KYC, account aggregation, or payment initiation.
  • Deploy and monitor apps in cloud environments (AWS, Azure, or GCP).
  • Work with event-driven architectures, Kafka or RabbitMQ, and CI/CD processes.
  • Collaborate with architects, QA, and DevOps; participate in code reviews and sprint planning.

Skills

Java backend development
Spring Boot
RESTful APIs
API security
OAuth2
OIDC
Cloud platforms
Kafka
RabbitMQ
CI/CD

Tools

Apigee
Kong
MuleSoft
Okta
Azure AD
Ping Identity

Job description

We are seeking a skilled Java Developer in Lahore with 3-5 years of experience to join the integration team. You will design and develop robust backend systems and APIs in telecom and fintech contexts, leveraging trends like TM Forum Open APIs and Open Banking.

You will work on API security, OAuth2/OIDC, and cloud deployments while collaborating with cross-functional teams to deliver scalable services.

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