**Job Title: Senior .NET Developer**
**Overview:**
We are seeking a Senior .NET Developer who will design, develop, implement, and support new and enhanced solutions for our Train Control safety-critical systems, including Positive Train Control. The ideal candidate will have a strong technical background with hands-on experience in the .Net framework, C#, SQL Server, Message Brokers (RabbitMQ, ActiveMQ, WebsphereMQ), REST API, Web API, JSON, socket level communications, and event-driven services.
In this role, you will work closely with other developers, technical leads, solution architects, and business analysts. You should be able to identify key milestones and communication points to deliver high-quality, timely results. Our aim is to maintain high system availability and ensure excellent hygiene and performance that supports the safety of our resources and velocity measurements. After an initial six months, this role will involve some on-call work in a 6 to 8-week rotation.
**Basic Qualifications:**
- 7 years of Object-Oriented Development experience with:
- C#; .Net Framework 4.7 or greater; .Net Core 3.1; .NET 5
- Message Brokers (RabbitMQ, ActiveMQ, WebSphereMQ) 
- REST API 
- SOA, Event-driven Services, Microservices
- SQL Server
- Multithreading
- Unit testing framework
- Ability to manage multiple deliverables, meet tight deadlines, and adapt to changing priorities
- Excellent drive for results and planning skills
- Creative thought processes
- Strong analytical and problem-solving abilities
- Exceptional collaborative oral and written communication skills
**Preferred Qualifications:**
- Experience in safety-critical product development (e.g., railroad, medical, aerospace)
- Experience with Windows-based Container Development
- Proficiency in Excel, Visio, SharePoint, Microsoft Teams