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Sr. Software Engineer

Mondo

  • Fort Wayne, Indiana
  • 30+ days ago
  • $120,000–$135,000 Per Year

Highlights

Senior engineer responsible for maintaining and modernizing kiosk-based applications, transitioning legacy .NET systems to a cloud-first architecture. Partner with cross-functional teams to understand business workflows and system integrations.

Numbers & Facts

LocationFort Wayne, Indiana
Salary$120,000–$135,000 Per Year

Description

Apply now: Sr. Software Engineer (.NET), location is Hybrid. The start date is ASAP for this permanent position.

Job Title: Sr. Software Engineer (.NET)
Location-Type: Hybrid (drivable to Fort Wayne, IN; ~1x/week after onboarding)
Start Date Is: ASAP
Duration: Permanent
Compensation Range: $120-135k
Must be authorized to work in the U.S. This position is not eligible for sponsorship .

Job Description:
Senior engineer responsible for maintaining and modernizing kiosk-based applications, transitioning legacy .NET systems to a cloud-first architecture.

Day-to-Day Responsibilities:

  • Troubleshoot and resolve issues across SQL, backend, and UI layers
  • Maintain and enhance legacy applications (VB.NET, WinForms, .NET Framework)
  • Develop backend services and APIs using C# and ASP.NET
  • Optimize SQL Server queries, indexing, and performance for transactional systems
  • Support migration from on-prem systems to Azure Cloud
  • Work hands-on with kiosk hardware (card readers, peripherals) for testing and validation
  • Collaborate with QA to deliver stable release candidates
  • Partner with cross-functional teams to understand business workflows and system integrations
  • Contribute to architectural planning for modernization to .NET (v10)

Requirements:

  • Must-Haves:
    • 7 years of software development experience
    • Strong expertise in C#, ASP.NET, and modern .NET Core
    • Hands-on experience with VB.NET (required)
    • Advanced SQL Server skills (complex queries, performance tuning, indexing)
    • Backend/API development (REST, Web APIs, SOAP exposure)
    • Experience working in legacy systems and debugging across full stack layers
    • Azure or cloud exposure (Data Lakes, SQL Azure preferred)
    • Bachelor's degree
    • Strong collaboration skills; ability to take direction and work across teams
    • Experience with JavaScript frameworks (React, Angular, Vue) 
  • Nice-to-Haves:
    • Experience with PCI compliance or OWASP best practices
    • Experience modernizing legacy systems or cloud migrations
    • Familiarity with CI/CD pipelines and automated testing tools

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