Payments Systems Engineer - C#/.NET & API Integrations

Camping World Holdings, Inc.; Chicago (IL); Hybrid; USD 111,000 - 170,000; Full time

Benefits offered by this job

Paid Time Off

401(k)

Roadside Assistance

Discounts

Tuition Reimbursement

Benefits package

Job summary

Camping World Holdings, Inc. in Lincolnshire, IL is hiring a Payment Systems Engineer to design, build, and scale an enterprise payments platform across in-store, ecommerce, and mobile channels.

This hands-on role focuses on delivering reliable, secure payment capabilities with external providers and internal teams. You will work closely with Product and Architecture to implement payment services, APIs, and workflows, including authorization, settlement, and dispute handling, while improving

Qualifications

• 5-10 years of software engineering experience
• Strong proficiency in C# and .NET/.NET Core
• Experience building and consuming RESTful APIs
• Hands-on experience integrating with third-party systems or APIs
• Familiarity with payment systems or financial transactions
• Understanding of secure coding practices and data protection
• Experience with relational databases (SQL Server, PostgreSQL, etc.)
• Strong problem-solving skills and ability to debug production issues
• Effective communication skills and ability to work in a collaborative environment

Responsibilities

• Design, build, and maintain payment services and APIs using C# and .NET/.NET Core
• Integrate with payment processors, gateways, acquiring banks, and third-party providers
• Support integrations with digital wallets (Apple Pay, Google Pay, Samsung Pay) and alternative payment methods
• Contribute to building a payment abstraction layer that simplifies multi-provider integrations
• Implement payment flows including authorization, capture, settlement, refunds, and chargebacks
• Develop and enhance capabilities such as payment routing, retry logic, and failover handling
• Support card-present and card-not-present payment flows (POS, e-commerce, mobile)
• Work on mPOS, in-app payments, hosted payment pages, and Text-to-Pay solutions
• Implement and maintain integrations using REST APIs, webhooks, and other payment protocols
• Monitor and troubleshoot payment transactions and production issues
• Improve system performance, scalability, and transaction success rates
• Participate in incident response and root cause analysis, implementing fixes and improvements
• Contribute to observability through logging, metrics, and alerting
• Partner with Product and Architecture teams to translate requirements into technical solutions
• Participate in sprint planning, backlog grooming, and code reviews
• Write clean, maintainable, and well-tested code
• Continuously improve development practices, tooling, and processes

Skills

C# & .NET

RESTful APIs

Payment systems

Third-party integrations

Relational databases

Secure coding

Debug prod issues

Collaborative work

Job description

Camping World Holdings, Inc. in Lincolnshire, IL is hiring a Payment Systems Engineer to design, build, and scale an enterprise payments platform across in-store, ecommerce, and mobile channels.

This hands-on role focuses on delivering reliable, secure payment capabilities with external providers and internal teams. You will work closely with Product and Architecture to implement payment services, APIs, and workflows, including authorization, settlement, and dispute handling, while improving