We are looking for an experienced API Backend Engineer with strong skills in .NET Core to design and develop the backend services and APIs for Finedge’s Core Banking API Engine.
You will build secure and reliable microservices, integrate with core banking systems, and ensure high performance to support mission-critical financial operations.
Key Responsibilities API Development:
Design, develop, and maintain RESTful APIs and microservices using .NET Core (C#).
Implement business logic for core banking features: account management, payments, loans, treasury, and compliance.
Define and enforce API standards (OpenAPI/Swagger, JSON, gRPC).
Build scalable backend services that support high transaction volumes and low-latency operations.
Integrate APIs with core banking systems (Finedge, Flexcube, Finacle, Temenos, or custom engines).
Backend Engineering:
Work with SQL Server, PostgreSQL, and NoSQL databases to ensure efficient data modeling and transactions.
Implement caching, queuing, and asynchronous processing for performance optimization.
Ensure fault tolerance, resilience, and backward compatibility of APIs.
Collaborate with architects to evolve a microservices-based architecture.
Security & Compliance:
Apply secure coding practices and adhere to OWASP API Security Top 10.
Implement authentication and authorization using OAuth2, OpenID Connect, JWT.
Support compliance with PCI-DSS, GDPR, ISO 27001, and banking regulations.
Collaboration & Process:
Work with frontend/mobile engineers to expose banking features via APIs.
Collaborate with DevOps engineers on CI/CD pipelines and containerized deployments.
Participate in Agile ceremonies, sprint planning, and technical reviews.
Write and maintain API documentation for internal and external developers.
Requirements
Bachelor’s Degree in Computer Science, Software Engineering, or related field.
3–5+ years of experience in backend development with .NET Core (C#).
Strong understanding of REST API design, microservices, and distributed systems.
Experience with databases (SQL Server, PostgreSQL, MongoDB, Redis).
Familiarity with message brokers (Kafka, RabbitMQ, Azure Service Bus).
Knowledge of API testing frameworks (Postman, Swagger, xUnit, NUnit).
Good understanding of scalability, performance tuning, and high-availability design.
Proficiency with Git and Agile methodologies.
Preferred Skills:
Experience in core banking systems (Temenos, Finacle, Flexcube, or similar) is an added advantage
Exposure to Open Banking & ISO 20022 standards.
Familiarity with cloud platforms (Azure preferred, AWS/GCP).
Knowledge of API gateways (Kong, Apigee, Azure API Management).
Experience in event-driven architecture and CQRS patterns.
