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AGE Solutions

Mid-Tier Application and Database Developer

Philadelphia, PAFrom $115kmidAdded 1 month ago

About this role

AGE Solutions seeks a mid-tier developer with 10+ years of C# and database expertise to design and maintain backend services and data-driven applications for government and defense clients. This hybrid Philadelphia role emphasizes SOLID principles, API development, and database optimization with a focus on scalable, secure systems.

What you'll do

  • Develop middle-tier services and backend components using C# and .NET technologies
  • Design and optimize relational databases, including stored procedures and complex queries
  • Build RESTful APIs and business logic layers for enterprise applications
  • Collaborate with front-end, architecture, and DevOps teams on integrated solutions
  • Troubleshoot production issues and participate in code reviews and architectural discussions
  • Document technical designs and implement performance optimization strategies

What they're looking for

  • C# and .NET (.NET Core/.NET 6+)
  • ASP.NET Web API and RESTful API design
  • SQL and relational databases (Oracle, SQL Server, PostgreSQL)
  • Entity Framework and ORM frameworks
  • SOLID principles and object-oriented design patterns
  • Database performance tuning and data modeling
  • Version control (Git, TFVC)
  • Microservices architecture

Benefits

  • 26 days of paid leave (vacation, sick, personal, holidays)
  • Performance bonuses tied to individual and company results
  • 401(k) with 3% company match and immediate vesting
  • Company-paid life insurance up to $300K plus dependent coverage options
  • Multiple medical, dental, and vision plans with FSA/HSA options
  • 15 days paid parental leave
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AGE Solutions

AGE Solutions provides telecommunications infrastructure, enterprise IT systems, and software solutions for federal government and defense clients. The company is hiring Field Engineers, Network Engineers, Systems Engineers, and Software Developers to support modernization, network management, storage infrastructure, and secure application development for DoD and other government agencies.

View all jobs at AGE Solutions

Likely interview questions

  • Walk us through your experience designing and optimizing complex SQL queries and stored procedures. Can you describe a time when you had to tune a poorly performing database query for production?
  • Tell us about your experience with C# and .NET Core/.NET 6+. How have you applied SOLID principles and design patterns in a middle-tier service you've built?
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