.NET Backend Integration Developer (Freelancer)

neurogent.ai; India; On-site; INR 1,200,000 - 1,500,000; Full time

Job summary

A technology company is seeking a .NET Backend Integration Developer to bridge legacy and modern platforms. The role involves API development, maintaining C#/.NET codebases, and working with Apache Kafka for message streaming. Candidates should have 4+ years of backend development experience, good knowledge of RESTful APIs, and solid database understanding. Familiarity with tools like Jira and Git is also required. This position is offered in India, ensuring a significant contribution to the backend ecosystem's evolution.

Qualifications

• 4+ years of backend development experience using C# and .NET.
• Proven experience with Apache Kafka or similar systems.
• Strong proficiency in building and maintaining RESTful APIs.

Responsibilities

• Design, develop, and deploy new RESTful APIs while updating existing endpoints.
• Maintain and refactor legacy C#/.NET codebases.
• Work extensively with Apache Kafka to manage message streaming.
• Manage logic for preparing and exporting data in XML and JSON formats.
• Manage environment-specific configurations for integrations.
• Collaborate with database and DevOps teams to troubleshoot integration issues.

Skills

C# and .NET Framework/Core

Apache Kafka

RESTful API Design

RDBMS concepts

Legacy Refactoring

XML/Data Handling

Jira

Git

Tools

Jira

Git

Job description

About the Role:

We are looking for a .NET Backend Integration Developer for a targeted contract role to help bridge our legacy and modern platforms. You will support our backend ecosystem as it transitions between systems, ensuring data integrity and seamless communication between services. The ideal candidate enjoys the challenge of maintaining established systems while building out the next generation of our integration layer.

Key Responsibilities:

• API Development & Evolution: Design, develop, and deploy new RESTful APIs while systematically updating and optimizing existing endpoints to meet evolving business requirements.
• Legacy System Maintenance: Maintain and refactor legacy C#/.NET codebases, ensuring stability and performance during the transition to modern architecture.
• Event-Driven Integration: Work extensively with Apache Kafka to manage message streaming, produce/consume events, and ensure reliable data flow between distributed systems.
• Data Transformation: Manage the logic for reading, preparing, and exporting data (including XML and JSON formats) to ensure downstream systems receive consistent information.
• Infrastructure & Config: Manage environment-specific configurations and dependency injection setups to support multiple data sources and service integrations.
• Collaborative Troubleshooting: Work alongside database and DevOps teams to debug complex integration issues and mirror logic across different database structures.

Required Skills & Experience:

• 4+ years of professional backend development experience, primarily using C# and .NET Framework/Core.
• Messaging Middleware: Proven experience working with Apache Kafka or similar message queuing systems.
• API Design: Strong proficiency in building and maintaining RESTful APIs.
• Database Mastery: Solid understanding of RDBMS concepts, SQL stored procedures, and query optimization.
• Legacy Refactoring: Ability to work with older codebases and write clean, isolated wrappers to bridge them with new tech.
• XML/Data Handling: Experience generating and structuring complex data formats for system exports.
• Tools: Familiarity with Jira for project management and Git for version control.

Nice to Have:

• Experience with advanced Dependency Injection (DI) patterns.
• Understanding of CI/CD pipelines and automated deployment processes.
• Experience in the insurance or fintech sector (handling policy/financial data).