Senior Web Application Systems Administrator - 304408

DNI is a Prime Contractor providing professional and technical support services to the Federal Aviation Administration (FAA)’s Strategy & Performance (ASP) Services organization. DNI support is critical in delivering high-quality technical and professional services to multiple AIT groups, ensuring standardized coordination, collaboration, and consistent processes across the organization:

The Senior Web Application Systems Administrator performs advanced technical analysis and system administration activities supporting enterprise web-based applications and infrastructure. This role evaluates technology solutions, develops recommendations aligned with business and security requirements, and supports the implementation, configuration, and maintenance of complex systems.

The position serves as a senior technical resource responsible for analyzing system integrations, supporting system upgrades and migrations, ensuring compliance with federal security requirements, and coordinating with internal stakeholders and software vendors. The Senior Web Application Systems Administrator provides both strategic insight and hands-on technical expertise to ensure systems operate securely, efficiently, and in alignment with organizational objectives.

Conducts complex analyses that evaluate alternative solutions and delivers well-supported recommendations for optimal use of technology, balancing business needs with risk considerations.

Demonstrates a comprehensive understanding of system integrations across multiple technologies and business units, ensuring alignment with enterprise strategy and organizational objectives.

Leads analysis activities for large-scale, complex projects and strategic initiatives involving high risk, cost, or visibility, with impacts spanning multiple departments and external stakeholders.

Performs server and system administration activities in support of system upgrades, migrations, and operational maintenance, including the ability to execute migrations during off-hours as required.

Develops, maintains, and manages system configurations, Active Directory (AD) accounts and credentials, and related access controls in accordance with FAA security requirements.

Completes and maintains security documentation, including Authority to Operate (ATO) artifacts, in compliance with FAA and NIST security guidelines.

Works effectively with commercial software vendors supporting COTS products to troubleshoot issues, implement upgrades, and ensure system compatibility.

Develops and maintains comprehensive documentation, including requirements, alternatives analyses, recommendations, technical specifications, configuration changes, test scenarios, and test results.

Qualifications and Special Knowledge Requirements

• Bachelor’s degree with twelve (12) years of relevant professional experience.
• Degree must be in Information Systems, Business Systems, Management Information Systems, IT Management, or a related field such as engineering, mathematics, or science.
• Formal certification(s) relevant to the area of expertise are preferred.

Knowledge, Skills, and Abilities

Performs system administration for web-based applications, ensuring reliability, security, and optimal performance across hosted environments. Highly proficient with Microsoft Internet Information Services (IIS), including configuration, deployment, troubleshooting, and performance tuning of web applications and services. Possesses strong understanding of how .NET applications and services interact with IIS, including application pools, worker processes, authentication methods, and pipeline configuration.

Ability to perform SQL Scripts for migrations and troubleshooting issues with vendor technical teams. Broad knowledge of ODBC connections, and various database concepts such as Redis. Available to perform scheduled migrations after hours.  

Experienced in requesting, installing, renewing, and managing SSL/TLS certificates, including certificate signing requests (CSRs), private key management, and certificate binding within IIS. Knowledgeable in modern TLS protocols (TLS 1.2 and TLS 1.3), secure cipher suites, and industry best practices for encryption and secure communications. Familiar with disabling weak ciphers and protocols, maintaining compliance with security standards, and implementing HTTPS configurations to protect application traffic.

Additional experience includes log analysis, troubleshooting connectivity and certificate issues, coordinating with security teams and certificate authorities, and supporting secure deployment of enterprise web applications. Demonstrates strong documentation, change management, and incident response practices in production environments.

General proficiency in analytical practices, including the application of both standard and advanced analytical techniques and tools.

General knowledge of business processes, operational challenges, IT resources, and enabling technologies.

Demonstrated ability to perform server and system administration in complex enterprise environments.

Working knowledge of FAA-defined security requirements, NIST guidelines, and industry best practices related to system security, SSL/TLS, and risk management.

Experience supporting and administering environments using:

• Amazon Web Services (AWS)
• Windows Server Operating Systems (2019 or later)
• Internet Information Services (IIS)
• Microsoft .NET technologies
• Active Directory (AD) and Group Policy
• PowerShell
• Microsoft Gateway
• ODBC
• SQL Server and SQL scripting
• Splunk
• Redis

• Covers 100% of employee benefit premiums, including Medical (PPO or HDHP Option), Vision, Dental

• Matching 401K
• Short- and Long-Term Disability
• Pet Insurance
• Professional Development/Education Reimbursement
• Parking and Transit Benefits for NY, NJ, ATL, and DC Metro areas

Other Duties:

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.