Mid-Tier Application and Database Developer
1 day ago
Philadelphia
Job Description 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.