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Backend & Middleware Integration Engineer

4G Identity Solutions Pvt Ltd

6 - 10 Lacs

Hyderabad

Posted:3 days ago

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Job Description

Role purpose :

  • Design secure shared backend services, API gateways and system-to-system integrations for the personnel identity platform and other enterprise systems.

what you do :

  • Develop and maintain secure REST APIs, backend modules and integration services using the approved backend stack.
  • Own API contracts, schema validation, versioning, service authentication, rate limiting and error conventions.
  • Implement identity lifecycle, enrolment, adjudication, card issuance and verification integrations as assigned.
  • Integrate biometric enrolment and ABIS-related systems through documented approved vendor interfaces.
  • Develop card personalisation, GIS/GPS, mobile-backend and enterprise integration APIs.
  • Implement OAuth 2.0/OpenID Connect, RBAC and IAM/Keycloak integration where specified.
  • Design transactional behaviour, idempotency, retries, timeouts, asynchronous queues and reconciliation.
  • Create auditable business events, tracing, structured logs and secure handling of sensitive records.
  • Build database access and optimise queries with clear ownership of business transactions.
  • Publish OpenAPI specifications, sequence diagrams and interface test packs; support end-to-end integration.
  • Expose governed services for centrally managed AI agents without delegating high-impact actions without approval.
  • Design, version, and test robust API specifications and maintain the integration test suite.
  • Build and optimize secure reference integrations that gracefully handle system failures and retries.
  • Architect system workflows through sequence diagrams and define strict transaction and audit logging standards.
  • Facilitate technical knowledge transfers and document operational playbooks for exception handling.

what we expect :

  • 4+ years of Strong Java/Spring Boot (preferred project stack; final choice to be confirmed) or proven equivalent enterprise backend stack
  • REST, JSON, OpenAPI/Swagger and API contract design
  • SQL and PostgreSQL/MySQL, transactions and query optimisation
  • OAuth 2.0/OpenID Connect, JWT, RBAC and TLS
  • Asynchronous messaging, retries, idempotency and exception handling
  • Git, automated unit/integration testing and secure coding
  • Production-grade troubleshooting of multi-system integrations

Preferred / advantageous

  • Keycloak and API gateways
  • Biometric enrolment, ABIS, smart-card personalisation or secure identity systems
  • RabbitMQ/Kafka, distributed tracing and high availability
  • Defence/government and restricted-network deployment experience
  • Integration with approved AI orchestration services

Education and collaboration

  • Bachelor’s / Master’s degree or equivalent practical experience in computer science, IT, engineering or a closely related discipline.
  • Strong problem-solving, documentation, secure-development discipline and collaboration with solution architecture, product, QA and operations teams.

Pay: ₹600,000.00 - ₹1,000,000.00 per year

Benefits:

  • Provident Fund

Work Location: In person

Skills Required

Backend Rest Apis Enterprise Integration Reconciliation Java Spring Boot Json SQL Postgresql Mysql GIT Integration Testing Troubleshooting

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Job Type

Full Time

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4G Identity Solutions Pvt Ltd

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