Senior​/Lead Developer .Net​/C# IRC

Job Description

For Rail client to support design and development activities in migration of a Windows stand‑alone application to a cloud service on Azure Cloud.

• Backend: 95% C# with ASP.NET Core, legacy ASP.NET framework, and a custom extension in Java.
• Frontend: C# with either MAUI Blazor or ASP.NET Core + Signal
  
  R + Type Script.
• Hosting: VMs in Azure or customer hosted; future will be containers on Linux.
• Deployment:
  Linux Docker containers, legacy Windows services, and various OSS/COGS products (SQL Server, Postgre
  
  SQL, HiveMQ, Traefik, Keycloak).

• Must Have
  • 5+ years of experience with Microsoft technologies: .NET, WPF, C#.
  • RESTful API design.
  • Linux.
  • gRPC.
  • Messaging/message brokers.
  • Technical debt management.
  • Network communication (connection handling, timeouts, retries, basic TCP & UDP understanding).
  • TLS understanding.
  • Container technologies.
  • Advanced mathematics – applied math.
  • Passionate about learning new business areas and technologies.
  • Ability to adapt quickly to an existing, complex environment.
  • Strong communication skills (both verbally and in writing) with internal team members and external business stakeholders.
  • Strong knowledge of software development best practices and techniques.
• Nice to Have
  • Signal
    
    R.
  • Open Telemetry.
  • Azure Dev Ops.
  • State‑driven design.
  • Event‑driven design.
  • Store‑and‑forward / buffering patterns.
• Experience With
  • Integrating with external systems and protocols; forward compatibility.
  • Working in regulated environments.
  • Ensuring reliability in unreliable runtime environments.
  • Meaning of idempotence and invariant.

• Reverse engineering of .NET/C# stand‑alone application and porting it to a web‑based solution hosted in Azure.
• Participate in the design and development of scalable cloud solutions.
• Develop new software products – design, code, test, package and document new products.
• Work closely with Scrum teams and stakeholders to bring the solution to production.
• Collaborate with the project lead and team to plan, estimate, schedule and implement development tasks.
• Report development project status in accordance with project plans.
• Participate in the planning of and execution of on‑site customer testing.

Business trips to Copenhagen will be required for onboarding (2 weeks) and then once per quarter.

• Culture of caring: inclusive culture of acceptance and belonging, with collaborative teammates, supportive managers, and compassionate leaders.
• Learning and development: opportunities to try new things, sharpen skills, and advance your career with a range of programs and training.
• Interesting and meaningful work: projects that matter, with a chance to work on cutting‑edge solutions.
• Balance and flexibility: support for achieving a healthy work‑life balance.
• High‑trust organization: integrity and trust at the core of our values.