Description

Top initiative: replacing payment processor. 

• Requirements gathering and refinement.
• Production support after go-live.
• Monitoring and alerting capabilities.
• Fraud detection and payment anomaly management.
• Integration work with payment processors and APIs.

Profile:

• .NET / C# development background.
• Strong payment-domain expertise.
• Experience integrating with payment processors and their APIs.
• Understanding of payment infrastructure and transaction flows.

Payments Functionality & Features

· 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

Reliability & Operations

· 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

Collaboration & Delivery

· 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

Required 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

· Experience with payment gateways, processors, or POS systems

Preferred Qualifications

· Familiarity with payment concepts such as EMV, tokenization, 3DS, and PCI-DSS

· Experience with event-driven systems or messaging platforms (Kafka, RabbitMQ, Azure Service Bus)

· Exposure to cloud platforms (Azure, AWS, or GCP)

· Experience with digital wallets and mobile payments

· Familiarity with alternative payment methods (ACH, BNPL, real-time payments)

· Experience working in Agile/Scrum environments (Jira, Azure DevOps, etc.)

Key Skills

Education

Bachelor's degree