Software Developer - Expert

Amentum•Fort Meade, MD

4d•$165,000 - $173,000•Onsite

About The Position

The Senior .NET Core Developer will be a key contributor to the development and maintenance of SENTINEL, a web-based application used to track counterintelligence related entities and their relationships. This role requires an exceptional developer with deep expertise in .NET Core, C#, and related technologies. This work supports on-going Army modernization efforts to bring cutting edge technologies to CI and HUMINT operations. Developers on this program work closely with analysts and geospatial engineers to develop application support to dynamic operations through cloud based databasing and collaboration.

Requirements

At least two years of experience in website coding, basic graphics techniques, Structured Query Language (SQL), Hypertext Markup Language (HTML), and Extensible Markup Language (XML).
Master’s degree in a relevant field and 12 years’ relevant experience; with a portion of the experience within the last 2 years, or Bachelor’s degree and 14 years of relevant experience, or Associate degree and 16 years of relevant, or High school diploma and 20 years of relevant experience.
Security Plus certified
Qualified at Information Assurance Technical Workforce Requirement Level II as defined in DoD 8570.01-M, Table C3.T1.
Skilled in data visualization and use of graphical applications, including Microsoft Office (Power BI) and Tableau; major data science languages, such as R and Python; managing and merging of disparate data sources, preferably through R, Python, or SQL; statistical analysis; and data mining algorithms.
10+ years of professional software development experience with a strong focus on .NET technologies.
Deep understanding and practical experience with .NET Core development.
Exceptional C# programming skills with a thorough understanding of object-oriented programming principles.
Extensive experience with Entity Framework Core, Code First, Migrations, and SQL Server.
Solid understanding of JavaScript, HTML, CSS, and modern front-end frameworks (e.g., Bootstrap).
Proficient with Azure DevOps and Git for source control, CI/CD, and collaboration.
Exceptional analytical and problem-solving skills.
Current Top Secret//SCI required
HS Diploma with years of experience supplementing education/ bachelor’s degree in relevant field or 22 years of relevant experience (flexible)
22 years, flexible and depending on degree completion
Security Plus certified

Nice To Haves

AI if applicable to your program
Understanding of ASP.NET Core 6.0 and related concepts to include Razor Pages, Dependency Injection and Middleware
Understanding of Entity Framework (EF) Core 6.0
Experience using both Visual Studio and SQL Server Management Studio
Experience using Team Foundation Server (TFS), Azure DevOps and/or Git as a source control repository and understand branching and merging concepts
Understanding of SQL Server, understanding of relational database principles in general and the ability to create, modify and delete database objects (i.e. tables, views, stored procedures, functions, triggers, etc)
Working knowledge of JavaScript development (i.e. general JavaScript knowledge, JQuery, etc)
Knowledge of Cascading Style Sheets (CSS) and UI layout frameworks (i.e. Bootstrap, Flexbox, etc)
Understanding of using LINQ and Entity Core (EF) to insert, query and update data in SQL Server
Ability to troubleshoot SQL Server performance issues to identify bottlenecks, poor performing queries, etc
Experience reverse engineering legacy source code to implement priority bug fixes and enhancement requests
Working knowledge of IIS and Web application deployments

Responsibilities

Develop new, cutting-edge software solutions for SENTINEL utilizing strong C# programming skills.
Maintain and enhance existing functionality within the SENTINEL application.
Contribute to the design and architecture of new features and components.
Develop enterprise-level web applications utilizing .NET Core, Razor Pages, Dependency Injection, Web APIs, and HTTP request/response handling.
Utilize Entity Framework (EF) Core, Code First, Migrations, and LINQ syntax to manage data interactions with SQL Server, including data insertion, querying, updating, and deletion.
Utilize a strong understanding of SQL Server and relational database principles to create, modify, and delete database objects.
Troubleshoot and address database performance issues.
Implement AJAX calls, form validation, DOM manipulation, and interactivity using JavaScript.
Style web applications utilizing CSS and UI layout frameworks such as Bootstrap 5 to create visually appealing and consistent user interfaces.
Collaborate with other developers, analysts, and stakeholders throughout the software development lifecycle.
Potentially mentor junior developers and share knowledge.
Complete all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.
Carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts.
Read and understand his/her Quality Management and Customer Satisfaction responsibilities.
Read, understand and implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policies pertaining to his/her job.