About NCR VOYIX
NCR Voyix Corporation (NYSE: VYX) is a global platform-powered leader in unified commerce for shopping and dining. Combining a flexible, intelligent platform with end-to-end payments capabilities and services developed through its deep industry experience, NCR Voyix empowers retailers and restaurants to accelerate new possibilities for their operations, experiences and business outcomes. NCR Voyix is headquartered in Atlanta, Georgia, and serves customers in more than 35 countries worldwide.
NCR Voyix is seeking a Senior Software Engineer with strong C# and .NET expertise to build, modernize, and operate mission-critical payment and commerce platforms. The role involves ownership of complex technical capabilities from design through production support across legacy and modern technology stacks.
Key Responsibilities:
- Design, develop, test, deploy, and support secure, reliable applications using C#, .NET Framework, modern .NET, ASP.NET, ASP.NET Core, and Web APIs.
- Maintain and modernize legacy applications built with ASP.NET Web Forms and .NET Framework 4.7.2.
- Lead or contribute to service rewrites, platform modernization, system integrations, and complex data migrations.
- Build scalable, low-latency, event-driven services using messaging platforms such as RabbitMQ, Kafka, Azure Service Bus, or NATS JetStream.
- Design distributed caching and state-management solutions using Redis or Valkey.
- Build and operate containerized workloads using Docker, Kubernetes, and Azure Kubernetes Service.
- Design secure integrations involving Azure Key Vault, HSMs, encryption services, certificates, TLS, and mutual TLS.
- Apply asynchronous programming, concurrency, parallel processing, and multithreading techniques safely in high-throughput systems.
- Troubleshoot application, database, networking, performance, and production issues.
- Improve throughput, latency, reliability, scalability, and resource utilization through profiling, testing, and optimization.
- Build automation and operational tooling using PowerShell or similar scripting technologies.
- Build and maintain CI/CD workflows using GitHub Actions and Git-based source control.
- Contribute to database design, optimization, migration, and troubleshooting, including MySQL-based systems.
- Implement observability using structured logging, metrics, distributed tracing, dashboards, and actionable alerts.
- Use tools such as Splunk, AppDynamics, Jaeger, Grafana, Prometheus, Datadog, Elastic, or Kibana to monitor applications and investigate production behavior.
- Write architecture and design documentation, including sequence diagrams, flow diagrams, interface contracts, runbooks, and Architecture Decision Records.
- Apply sound software design principles including OOP, SOLID, DRY, Clean Architecture, dependency injection, and appropriate design patterns.
- Develop automated unit, integration, component, contract, and performance tests.
- Participate in code reviews and ensure quality, security, reliability, and operational readiness.
- Use AI coding tools and agentic workflows to improve design, development, testing, debugging, review, troubleshooting, documentation, and automation.
- Mentor junior and mid-level engineers through pairing, design discussions, technical guidance, and code reviews.
- Participate in on-call support, incident response, and post-incident reviews.
- Collaborate with product managers, architects, engineers, and stakeholders to convert ambiguous goals into reliable production systems.
Required Qualifications:
- 7 to 10 years of professional software engineering experience.
- Strong production experience with C# and the .NET ecosystem.
- Experience with ASP.NET or ASP.NET Web Forms, .NET Framework 4.7.2 or later, modern .NET preferably .NET 8 or later, ASP.NET Core, and Web API development.
- Strong knowledge of software design and architecture principles including OOP, SOLID, DRY, Clean Architecture, dependency injection, and maintainable…