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Sr. Software Engineer

Mondo Staffing

Fort Wayne, IN

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JOB DETAILS
SALARY
$120,000–$135,000 Per Year
SKILLS
AngularJS, Application Programming Interface (API), Architectural Services, Best Practices, Cloud Computing, Continuous Deployment/Delivery, Continuous Integration, Cross-Functional, Debugging Skills, Identify Issues, JavaScript Frameworks, Microsoft .NET, Microsoft ASP.NET (Active Server Page), Microsoft C# (C Sharp), Microsoft SQL Server, Microsoft Visual Basic.NET, Microsoft Windows Azure, Onboarding, PCI, Performance Tuning/Optimization, Peripheral Hardware, Problem Solving Skills, Quality Assurance, Query Optimization, REST (Representational State Transfer), React.js, SOAP (Simple Object Access Protocol), SQL (Structured Query Language), Software Development, Software Engineering, System Integration (SI), System Migration, Team Player, Test Automation, Test Tools, User Interface/Experience (UI/UX), Validation Testing, Vue.js, Windows Forms (WinForms)
LOCATION
Fort Wayne, IN
POSTED
1 day ago

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
Benefits: Eligible for Health, Dental, Vision, 401K, PTO
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

About the Company

M

Mondo Staffing

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