Senior .NET Developer

4 weeks ago

Manila, Philippines Ampstek Full time

Senior .NET Developer Ampstek Manila, National Capital Region, Philippines We are looking for a highly skilled Senior .NET Developer with extensive hands‑on experience in C#.NET, .NET Core, ASP.NET, AWS, and MSSQL, and strong exposure to the Payments and Cards domain. The candidate will design, develop, and enhance secure, high‑performance transaction processing systems, ensuring reliability, scalability, and compliance with financial industry standards. Key Responsibilities Design, develop, and maintain enterprise‑grade payment applications and APIs using C#.NET, .NET Core, and ASP.NET frameworks. Build and optimize real‑time transaction processing and settlement modules integrated with card networks (Visa, MasterCard, AMEX, etc.). Develop and maintain backend services for authorization, clearing, settlement, and reconciliation processes. Integrate with payment gateways, POS systems, and third‑party financial services using RESTful APIs and secure communication protocols. Ensure solutions comply with PCI DSS, ISO 8583 message formats, and security best practices. Manage data storage and performance optimization in MSSQL Server, including stored procedures and indexing. Deploy and manage applications on AWS cloud (EC2, Lambda, S3, RDS, API Gateway) and leverage serverless or microservices‑based architecture. Participate in system design reviews, code reviews, and contribute to architecture decisions. Troubleshoot production issues, perform root cause analysis, and ensure continuous system reliability and uptime. Collaborate with QA, DevOps, and product teams to deliver secure, scalable, and high‑performing payment solutions. Seniority Level Mid‑Senior level Employment Type Contract Job Function Information Technology. Industries: IT Services and IT Consulting. Contact James – Email: #J-18808-Ljbffr

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