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Mid-Tier Application and Database Developer

AGE Solutions

Philadelphia, PA

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JOB DETAILS
SALARY
SKILLS
ADO.NET Entity Framework, Adjudication, Aerospace and Defense, Application Programming Interface (API), Application Servers, Architectural Services, Best Practices, Caching, Cloud Computing, Code Reviews, Consulting, Continuous Deployment/Delivery, Continuous Integration, Cross-Functional, Customer Relations, Data Modeling, Data Quality, Database Administration, Database Design, Database Optimization, Database Programming, Defense Intelligence, Design Patterns Programming Methodologies, Detail Oriented, DevOps, DoD Secret Clearance, Docker, Establish Priorities, Git, Government, Identify Issues, Memory Hardware, Microservices, Microsoft .NET, Microsoft C# (C Sharp), Microsoft SQL Server, Microsoft Windows Azure, Object Oriented Design (OOD), Object Relational Mapping (ORM), Oracle, Oracle Database, Performance Analysis, Performance Tuning/Optimization, PostgreSQL, Problem Solving Skills, Procedure Development, Professional Services, Query Optimization, REST (Representational State Transfer), Redis, Relational Databases (RDBMS), SQL (Structured Query Language), Sales, Software Design, Software Development, Source Code/Configuration Management (SCM), Stored Procedures, Systems Scalability, T-3 / DS3, Technical Writing, Technical/Engineering Design, Test Harness, United States Citizen, User Interface/Experience (UI/UX)
LOCATION
Philadelphia, PA
POSTED
1 day ago

About Us

AGE Solutions is a premier technology and professional services company, providing in-depth consulting, advanced technology solutions, and essential services throughout the U.S. government, defense, and intelligence sectors. Prioritizing innovation and client-focused solutions, we assist major agencies in addressing intricate issues and ensuring a more secure future.

AGE is seeking a Software Developer with strong C# and database expertise to join our development team. This role focuses on building and maintaining robust middle-tier services and data-driven applications. The candidate will work closely with cross-functional teams to design, develop, maintain and optimize scalable backend systems that power critical business functionality.

The ideal candidate combines solid middle-tier development experience with deep database development knowledge and a strong understanding of system design, performance, maintainability, and data integrity.

This role is hybrid in Philadelphia, PA, requiring onsite reporting at the customer's facility at least 1 day/week.  Candidates must reside within a commutable distance of Philadelphia, PA in order to work onsite as required.

Responsibilities Include:

  • Design, develop, and maintain middle-tier services and backend components using C# and .NET technologies.
  • Apply SOLID principles and clean architecture practices in application design.
  • Build robust APIs and business logic layers to support web and enterprise applications.
  • Collaborate with front-end developers, architects, and DevOps teams to deliver integrated solutions.
  • Design, develop, optimize, and maintain relational databases (Oracle preferred).
  • Write efficient stored procedures, views, functions, and complex queries.
  • Optimize database performance, indexing strategies, and query tuning.
  • Participate in code reviews and enforce best practices for clean, maintainable code.
  • Troubleshoot and resolve production issues related to application logic and data layers.
  • Contribute to architectural decisions and technical design discussions.
  • Document technical designs and implementation details.

Required Skills, Qualifications and Experience:

  • BA/BS in technical discipline.
  • 10 years of experience in middle-tier and database development.
  • Experience in applying SOLID principles and object-oriented design patterns.
  • Strong proficiency in C# and .NET (.NET Core/.NET 6+) and ASP.NET Web API.
  • Experience designing and building RESTful APIs and middle-tier services.
  • Experience with ORM frameworks (Entity Framework preferred, Dapper).
  • Strong SQL skills and experience with relational databases (Oracle preferred, SQL Server, PostgreSQL).
  • Experience writing and optimizing complex queries and stored procedures.
  • Strong understanding of data modeling and database design principles.
  • Experience with version control systems (TFVC and Git).
  • Strong problem-solving skills and attention to detail.
  • Must be a United States citizen with a DoD Secret clearance or ability to obtain a favorably adjudicated T3 investigation.

Preferred Qualifications:

  • Experience with microservices architecture
  • Experience with CI/CD pipelines and DevOps best practices
  • Experience with cloud platforms (Azure preferred)
  • Experience with caching strategies (Redis, in-memory caching)
  • Experience with performance profiling and monitoring tools
  • Experience with containerization (Docker, Kubernetes)
  • Experience with automated testing frameworks

Work Environment and Physical Demand:

  • Must be able to work for extended periods of time at a computer.

Compensation: $115,000+

At AGE Solutions, we reward performance, invest in growth, and share success. Our benefits support the whole person, professionally, financially, and personally.

  • 26 Days Paid Leave: Includes vacation, sick, personal time, and holidays. You choose how to use it.
  • Performance Bonuses: Performance bonuses are awarded based on individual contributions and company-wide results, aligning recognition with impact.
  • 401(k) with Match: We match 3% of your contributions with immediate vesting.
  • Financial Protection: Company-paid life insurance up to $300K and options for additional coverage for you and your dependents.
  • Health Benefits: Multiple medical plans, dental, vision, FSA and HSA options to fit your needs.
  • Parental Leave: 15 days of fully paid leave for new parents, because family matters.
  • Military Differential Pay: We bridge the gap for employees on active duty, so they don't take a financial hit while serving.
  • Professional Growth: Paid training and certifications, tuition reimbursement, and the tools and tech to get the job done right.
  • Shared Success: In the event of a company sale, our CEO has committed to returning 80% of net proceeds to employees. This ensures our team shares in the long term value they help create.

At AGE, you'll do work that matters, supported by a company that delivers for its people.

About the Company

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AGE Solutions

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