Kotlin Developer – API

3 weeks ago

Pune, Maharashtra, India OptraHEALTH Full time

About OptraHEALTH:-

OptraHEALTH is a leader in delivering innovative, technology-driven solutions across industries. We specialize in building intelligent, data-centric applications that empower organizations to unlock the value of their data and drive business impact. Leveraging cutting-edge technologies, cloud platforms, and scalable architectures, we create high-quality solutions that are built to perform and adapt. As a fast-paced, growth-oriented company, we foster a collaborative environment where creativity, problem-solving, and ownership are encouraged giving our team the opportunity to shape and deliver transformative products from the ground up.

Location: Pune

Experience: 1-3 years

Industry: Banking / Finance (preferred)

Focus: Building APIs, implementing authentication/authorization, integrating with SAP & finance systems.

Skills Weight: Spring Security (OAuth2, SAML2, LDAP, JWT), OpenAPI, gRPC, Protocol Buffers, API design.

Job Summary:-

We are seeking a Kotlin Developer (API & Security Specialist) to design and implement secure, high-performance backend APIs for banking/finance applications. The role focuses on secure authentication/authorization flows, API integration with SAP systems, and robust inter-service communication using gRPC and Protocol Buffers.

Key Responsibilities:-

  • Design and develop REST and gRPC APIs using Kotlin, Spring Boot, and Protocol Buffers.
  • Implement authentication/authorization using Spring Security (OAuth2, SAML2, LDAP, JWT).
  • Create and maintain API documentation with OpenAPI 3.0 & SpringDoc.
  • Integrate with SAP systems and other financial applications using REST, OData, and JSON/XML protocols.
  • Collaborate with backend and DevOps teams for secure deployments.
  • Perform code reviews, troubleshoot issues, and ensure security compliance.

Required Skills:-

  • Strong Kotlin & Spring Boot experience.
  • Expertise in Spring Security (OAuth2, SAML2, LDAP, JWT).
  • Experience with gRPC, Protocol Buffers.
  • API integration with SAP/Finance systems.
  • Familiarity with Docker and cloud environments (AWS/GCP).

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