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Senior Developer (.NET / Payments Platform)

Company:
3B Staffing
Location:
Atlanta, GA, 30377
Posted:
April 28, 2026
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Description:

Senior Developer (.NET / Payments Platform)

- 4 location options,

1 year,

USC,GC

Video Interview

.NET Core, SQL, AWS, Microservices, Docker, Kubernetes, GitHub (incl. Actions), API/Integrations, Payments Domain

Location options- please source locals only for this:

OKC = Oklahoma City, OK

ATL = Atlanta, GA

Salt Lake City = Salt Lake City, UT

Chattanooga = Chattanooga, TN

Senior backend-focused .NET developer role supporting a payments gateway platform. Strong hands-on experience required in .NET, SQL (query writing/troubleshooting), and GitHub (source control and GitHub Actions). Role is API and integration heavy, working on processor integrations and payment services; UI/front-end experience is not a fit. Platform is moving from monolithic services to AWS-based cloud architecture; cloud migration experience is a plus. Payments or financial systems experience strongly preferred.

Job Description:

Software Engineer II

Worldpay is seeking an experienced Mid-to-Senior level Software Engineer to work as a key team member developing highly transactional, Cloud-based microservices and solutions, with a focus on tokenization and encryption.

The ideal candidate will possess a solid knowledge of .NET Core, cloudbased microservices development within AWS.

This is a great position for a highly motivated selfstarter that excels in fast paced environments, enjoys an agile environment, and brings a collaborative, team-oriented approach to software development!

SE II Must Have Requirements:

3 to 5 plus years with a minimum 2 years programming experience in financial services or a related industry.

.NET Core

Cloud experience

Microservices experience.

AWS

Docker

SQL and NOSQL Databases

Git version control

Kubernetes

Additional Qualifications:

Payments Domain

C/C++

Jenkins

Web Forms

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