Senior Software Engineer

Clover; Sunnyvale (CA); On-site; USD 160,000 - 240,000; Full time

Benefits offered by this job

Annual incentive program

Equity awards

Job summary

Clover, a division of Fiserv, seeks a Senior Software Engineer to design, build, and maintain high-performance backend systems and RESTful APIs using C# and .NET 8. You will work with multi-tenant databases and cloud environments, integrating with third-party platforms while upholding security and reliability.

You will use Visual Studio, Azure DevOps, Docker, and cloud services to develop, test, and deploy applications.

Qualifications

• Strong backend development skills in C# and .NET 8 for high-performance RESTful APIs.
• Experience with multi-tenant database architectures and tenant isolation strategies.
• Proficient in writing, debugging, and optimizing complex raw SQL queries in MySQL.
• Experience building and consuming REST APIs and Webhooks, with OAuth 2.0 authentication.
• Familiarity with Docker and cloud-hosted environments (AWS/GCP).
• Proficient in Visual Studio and Azure DevOps for development and deployment.

Responsibilities

• Build high-performance RESTful Web APIs using C# and ASP.NET Core.
• Support and maintain existing codebases in legacy .NET Frameworks.
• Write, debug, and optimize complex raw SQL queries in MySQL for multi-tenant designs.
• Develop and consume RESTful endpoints, process JSON payloads, manage Webhook events and OAuth 2.0 authentication.
• Utilize Visual Studio, Git (Azure DevOps), Docker, and cloud environments (AWS/GCP) for development and deployment.

Skills

C# & .NET 8

ASP.NET Core

REST APIs

Webhooks

OAuth 2.0

Git

Docker

Cloud (AWS/GCP)

Tools

Visual Studio

Azure DevOps

MySQL

Azure/AWS/GCP cloud

Job description

Calling all innovators - find your future at Fiserv.

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

What does a successful Software Engineer - .NET do at Clover?

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.

What You Will Do

• 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 payloads, and manage Webhook events and OAuth 2.0 authentication for third-party integrations.
• Utilize Visual Studio, Git (Azure DevOps), Docker, and cloud-hosted environments (AWS / GCP) for development and deployment.

What You Will Need To Have

• 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.
• IDE & Tooling: Proficiency in Visual Studio for backend development and debugging.
• Git Version Control: Hands-on experience using Git within environments like Azure DevOps.
• Docker & Basic Cloud Context: Experience using Docker for local development setup and familiarity working within cloud-hosted environments (AWS / GCP).

What Would Be Great To Have

• Java Background (Bonus): Exposure to Java backend technologies is a plus, as parts of the ecosystem may leverage Java in future iterations.
• Experience with React and Typescript

Salary Range

$160,000.00 - $240,000.00

These pay ranges apply to employees in Sunnyvale, California. Pay ranges for employees in other states may differ.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company's sole discretion.

Our Commitment To Equal Opportunity

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact [e-mail]. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv's Disability Accommodation Policy for additional information.

Note To Agencies

Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning About Fake Job Posts

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.