Systems Engineer

Overview

Job Summary We are seeking a Payment Systems Engineer with strong .NET/C# experience to design, build, and maintain secure, high-performance payment platforms. This role focuses on developing reliable transaction processing systems while ensuring compliance with financial, regulatory, and security standards.

• Design, develop, and maintain payment systems using .NET, C#, and ASP.NET Core
• Build and support RESTful APIs and microservices for payment processing
• Integrate with payment gateways, banks, and third-party financial providers
• Ensure high availability, scalability, and fault tolerance of payment services
• Implement secure handling of sensitive payment data in compliance with PCI DSS
• Monitor transaction flows, troubleshoot failures, and resolve production issues
• Collaborate with product, compliance, risk, and operations teams
• Improve reconciliation, settlement, and reporting processes
• Participate in architecture design, code reviews, and technical decision-making
• Maintain technical documentation and operational runbooks

• Bachelor’s degree in computer science, Engineering, or equivalent experience
• 5+ years of strong experience in retail and multi-channel payments, encompassing point-of-sale (POS), e-commerce platforms, mobile payments, and alternative payment methods
• 8+ years experience with C#, .NET, and ASP.NET Core
• Experience building backend systems and distributed services
• Solid understanding of REST APIs, microservices, and service-to-service communication
• Experience with relational databases (e.g., SQL Server, Oracle, Postgre
  
  SQL)
• Knowledge of secure coding practices, encryption, and authentication

• Experience with payment processors and gateways (e.g., Fiserv, , Stripe, Adyen, Pay Pal etc.)
• Familiarity with PCI DSS, SOX, or other financial compliance standards
• Experience with Azure or AWS, including cloud-native .NET applications
• Knowledge of messaging systems (e.g., Azure Service Bus, Rabbit
  
  MQ, Kafka)
• Experience with CI/CD pipelines and Dev Ops practices
• Background in fintech or financial services

• Strong problem-solving and debugging skills
• High attention to detail for financial accuracy
• Ability to work on mission-critical, high-availability systems
• Strong communication and cross-functional collaboration skills
• Ownership mindset and focus on reliability and security

• Agile, collaborative engineering team
• Emphasis on secure, scalable, and reliable systems
• Opportunity to work on high-impact financial platforms

$-$ Annual

In addition to competitive pay, we offer Paid Time Off, 401(k), an Employee Assistance Program, Good Sam Roadside Assistance, discounts, paid parental leave (if eligibility is met), Tuition Reimbursement (if eligibility is met), and on the job training opportunities. Full-time associates are offered a comprehensive benefit package including medical, dental, vision and more! Part-time associates are offered access to dental & vision coverage!

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We are an equal employment opportunity employer. The Company s policy is not to discriminate against any applicant or employee based on race, color, sex, sexual orientation, gender identity, religion, national origin, age (40 and over), disability, veteran or uniformed service-member status, genetic information, or any other basis protected by applicable federal, state, or local laws.