Fiserv is a global fintech and payments company with solutions for banking, global commerce, merchant acquiring, billing and payments, and point-of-sale.
About the role
We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv. Found on 1752vc Careers, the job board for startup and VC roles.
What they're looking for
- C# & .NET 8 / ASP.NET Core: Strong backend development skills for building high-performance RESTful Web APIs
- Legacy .NET Framework Familiarity: Comfort working with or supporting code written in legacy .NET Framework codebases
- Raw MySQL & Hand-Crafted SQL: Excellent proficiency in writing, debugging, and optimizing complex raw SQL queries without reliance on ORMs
- Multi-Tenant Architecture: Experience with multi-tenant database designs, tenant isolation strategies, and efficient connection handling
- REST APIs & Webhooks: Experience building and consuming RESTful endpoints, processing JSON payloads, and managing Webhook events for third-party integrations
- OAuth 2.0 & Authentication: Understanding of token management and securing external API communication
More about this role
We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv.
Job Title
Senior Software Engineer
As a .NET Software Engineer at Clover, you will design, build, and maintain high-performance backend systems and RESTful APIs using C# and .NET 8. Working with complex multi-tenant database architectures and cloud-hosted environments, you will drive seamless integrations with third-party platforms while ensuring robust security, performance, and reliability across our applications.
- Build high-performance RESTful Web APIs using C# and ASP.NET Core.
- Support and maintain existing code written in legacy .NET Framework codebases.
- Write, debug, and optimize complex raw SQL queries in MySQL and manage multi-tenant database architectures.
- Develop and consume RESTful endpoints, process JSON...
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