.Net Core Developer - API Gateway Exp
Job in
Houston, Harris County, Texas, 77246, USA
Listed on 2026-07-10
Listing for:
RSA Tech
Full Time
position Listed on 2026-07-10
Job specializations:
-
Software Development
Backend Developer, .NET Developer, Software Engineer, C# / Unity Developer
Job Description & How to Apply Below
Location:
Houston, TX – Hybrid Model
Long Term Contract
We are hiring an experienced .NET Core Developer with expertise in payment gateway and switch development. The role involves designing, developing, and optimizing high-performance payment processing systems with a focus on API-based integrations, and transaction processing for fintech platforms.
10 years of development experience in .NET Core / C# / ASP.NET Core with API Gateway must
Key Responsibilities:- Develop and maintain payment gateway & switch applications using .NET Core / C#.
- Build and optimize high-performance APIs, microservices, and transaction routing engines.
- Work with BA, Product, and Ops teams to translate requirements into technical solutions.
- Debug, troubleshoot, and resolve transaction failures, settlement/reconciliation issues.
- Participate in SIT, UAT, and production support for payment projects.
- Contribute to code reviews, best practices, and process automation
- 10 years of development experience in .NET Core / C# / ASP.NET Core.
- Strong experience in payment systems, fintech, banking technology, or switch development.
- Hands-on expertise with transaction routing, host-to-host integrations.
- Proficiency in Web API, REST, microservices, SQL Server, Entity Framework, LINQ.
- Familiarity with cloud platforms (Azure / AWS) preferred.
- Knowledge of RBI/PCI-DSS standards, security & encryption in financial applications.
- Strong debugging, performance tuning, and problem-solving skills.
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