Senior Software Engineer (.NET)

Job type : Contract & Permanent (Full-time)

Project is for banking & financial services

Job Description :

We are looking for a highly skilled and experienced .NET Developer with a strong background in Microservices architecture, AWS cloud services, and hands-on experience in Payment systems (e.g., card processing, wallets, gateways, PSPs). The ideal candidate will play a critical role in designing, developing, and deploying scalable and secure microservices-based applications for our payment platform.

Key Responsibilities:

• Design, develop, and maintain .NET Core-based microservices in a high-availability environment.
• Collaborate with product managers, architects, and DevOps engineers to implement cloud-native solutions on AWS.
• Integrate and maintain payment gateways (Stripe, Adyen, PayPal, Visa/Mastercard, etc.) and ensure PCI compliance.
• Write clean, scalable, and secure code following best practices (TDD, SOLID principles, etc.).
• Work closely with the QA and DevOps teams for CI/CD integration, automated testing, and deployment.
• Monitor, troubleshoot, and optimize microservices performance using AWS CloudWatch, X-Ray, or similar tools.
• Participate in code reviews and provide technical guidance to team members.
• Document APIs, services, and architecture using Swagger/OpenAPI and Confluence.

Required Skills & Qualifications:

• 8+ years of experience in .NET development, with at least 5+ years in .NET Core / .NET 6/7.
• Proven experience in building microservices architecture (REST APIs, asynchronous messaging, service discovery).
• Hands-on experience with AWS services (e.g., ECS, Lambda, API Gateway, SQS/SNS, DynamoDB, RDS, CloudFormation).
• Strong experience in integrating payment systems (e.g., Visa, Mastercard, ACH, wallets, PSPs).
• Deep understanding of security in payments: tokenization, PCI-DSS, encryption, fraud detection.
• Familiarity with containerization tools like Docker and orchestration with Kubernetes or AWS ECS/EKS.
• Experience with SQL and NoSQL databases (e.g., SQL Server, PostgreSQL, DynamoDB, MongoDB).
• Proficiency in Git, CI/CD pipelines, and Agile methodologies (Scrum/Kanban).