Sr. Application Programmer/ Developer

Senior Application Programmer / Developer 

We are seeking a Senior Application Programmer/Developer to provide advanced development and modernization support for federal IT systems, with a strong emphasis on Angular front‑end development supported by .NET, SQL, AWS, and CI/CD practices.

Clearance: This position supports a federal contract and requires U.S. citizenship or lawful permanent resident () status, as well as the ability to obtain a Public Trust clearance.

Duties and Responsibilities

• Design, develop, enhance, and maintain enterprise applications using C#, .NET Framework, .NET Core, and ASP.NET Core, applying object-oriented design principles, SOLID principles, and software engineering best practices.

• Design, develop, and maintain RESTful Web APIs using ASP.NET Core Web API, ensuring secure, scalable, and high-performance integrations across enterprise systems.

• Implement and support API documentation, testing, and lifecycle management using Swagger/OpenAPI, Postman, and API versioning standards.

• Develop and optimize database solutions using Microsoft SQL Server, including T-SQL, stored procedures, functions, views, indexing strategies, query optimization, and performance tuning.

• Utilize Entity Framework Core, Dapper, and ADO.NET for efficient data access, data modeling, and database interaction within enterprise applications.

• Design, build, and support cloud-based solutions on Amazon Web Services (AWS), leveraging services such as EC2, S3, RDS, Lambda, CloudWatch, IAM, VPC, and Route 53.

• Manage DevOps practices, including Continuous Integration and Continuous Deployment (CI/CD) pipelines using Jenkins, GitHub Actions, and Bitbucket Pipelines.

• Experience working with Infrastructure as Code (IaC) tools such as Terraform for automated cloud resource provisioning and management.

• Develop containerized applications using Docker and support orchestration platforms such as Kubernetes (EKS) for scalable and resilient deployments.

• Collaborate with cross-functional teams to design, develop, test, deploy, and maintain enterprise solutions throughout the Software Development Life Cycle (SDLC).

• Participate in code reviews, troubleshooting, system integration, performance optimization, and production support activities while ensuring adherence to security and compliance standards.

• Support application monitoring, logging, and incident management using AWS CloudWatch, centralized logging, and DevOps monitoring tools to ensure system reliability and operational excellence.
  
  

Qualifications and Special Knowledge Requirements

• Master’s degree and eleven (11) years of relevant experience, or Bachelor’s degree and thirteen (13) years of relevant experience.

• Engineering, math, or science degree required.

Abilities

• Advanced development experience using Angular and modern front‑end technologies, including component‑based architecture, services, routing, and state management.

• Strong proficiency in C#, .NET Framework, .NET Core, and ASP.NET Core, with the ability to design and maintain scalable, secure, and high‑performance enterprise applications.

• Experience developing and integrating RESTful Web APIs using ASP.NET Core Web API, including API versioning, documentation (Swagger/OpenAPI), and automated testing.

• Proficiency in TypeScript, JavaScript, HTML, CSS, and modern UI development practices, with the ability to build responsive, accessible, and maintainable front‑end applications.

• Advanced experience writing and optimizing SQL for Microsoft SQL Server, including stored procedures, functions, indexing strategies, and query performance tuning.

• Strong understanding of object‑oriented programming, SOLID principles, and enterprise software engineering best practices.

• Experience with AWS cloud services, including EC2, S3, RDS, Lambda, CloudWatch, IAM, VPC, and related cloud‑native development and deployment patterns.

• Hands‑on experience with CI/CD pipelines using Jenkins, GitHub Actions, Bitbucket Pipelines, or similar tools, including automated builds, testing, and deployments.

• Familiarity with Infrastructure as Code (IaC) tools such as Terraform for provisioning and managing cloud resources.

• Experience developing and deploying containerized applications using Docker and supporting orchestration platforms such as Kubernetes (EKS).

• Experience working with Git or Bitbucket for source control, branching strategies, code reviews, and collaborative development workflows.

• Familiarity with ORM and data access technologies, including Entity Framework Core, Dapper, and ADO.NET.

• Experience working in a Scrum development environment, participating in sprint ceremonies, backlog refinement, and iterative delivery.

• Familiarity with Section 508 accessibility requirements and the ability to ensure compliant front‑end implementations.

• Demonstrated communication skills and ability to work independently or under general direction, collaborating effectively with cross‑functional teams across the SDLC.