Dot Net Developer with Payment Systems

Virtual Connect Solutions; United States; On-site; USD 82,656 - 96,432; Full time

Job summary

A leader in payment technology solutions is seeking a Mid-Senior level engineer specializing in building and supporting RESTful APIs and microservices for payment processing. Candidates should have a Bachelor's in computer science or equivalent and strong experience in .NET technologies. The role entails integration with payment gateways, ensuring system reliability, and troubleshooting transaction issues. This contract position offers engagement in a high-impact agile team focused on secure and reliable financial solutions.

Qualifications

• Strong 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.

Responsibilities

• Build and support RESTful APIs and microservices for payment processing.
• Integrate with payment gateways, banks, and third‑party financial providers.
• Monitor transaction flows, troubleshoot failures, and resolve production issues.

Skills

Problem-solving

Debugging

Attention to detail

Communication

Collaboration

Ownership mindset

Education

Bachelor’s degree in computer science, engineering, or equivalent experience

Tools

.NET

C#

ASP.NET Core

SQL Server

Azure

AWS

Job description

Pay Range

Virtual Connect Solutions provided pay range: $60.00/hr - $70.00/hr.

Responsibilities

• 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.

Required Qualifications

• Bachelor’s degree in computer science, engineering, or equivalent experience.
• Strong 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, PostgreSQL).
• Knowledge of secure coding practices, encryption, and authentication.

Preferred Qualifications

• Experience with payment processors or gateways (e.g., Fiserv, Authorize.net, Stripe, Adyen, PayPal, 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, RabbitMQ, Kafka).
• Experience with CI/CD pipelines and DevOps practices.
• Background in fintech or financial services.

Skills and Competencies

• 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.

Work Environment

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

Must Have

Payment System background, solid .NET/API/Microservice technical skills, strong communication.

Job Details

Seniority level: Mid‑Senior level
Employment type: Contract
Job function: Engineering and Information Technology
Industries: Outsourcing and Offshoring Consulting