APTNEXUS · 2 weeks ago
Senior Web Systems Engineer
Arlington, VA
Full-time
Hybrid
Senior Level, Lead/Staff
10+ years expAPTNEXUS is a quality-driven small business that empowers federal agencies and commercial enterprises to navigate the complexities of the digital landscape. The Senior Web Systems Engineer will serve as the technical lead for the agency's digital presence, managing the lifecycle of internal collaboration environments and public-facing portals while ensuring compliance and security standards are met.
Computer & Network Security
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Lead the architecture and governance of the M365 environment, ensuring 508 compliance and data integrity
Develop complex, low-code/pro-code solutions using Power Apps (Canvas/Model-driven) and Power Automate to digitize agency workflows
Manage M365/Azure Active Directory permissions, implementing Least Privilege access models
Maintain and customize SharePoint Online sites using the SharePoint Framework (SPFx) where out-of-the-box functionality is insufficient
Oversee the development, security, and maintenance of the agency’s public website hosted on WordPress
Manage deployment pipelines to Cloud.gov (or similar PaaS), ensuring high availability and adherence to federal security standards
Implement custom themes and plugins while ensuring the site meets the U.S. Web Design System (USWDS) standards
Coordinate with the Security team to ensure all public-facing assets pass regular vulnerability scans and penetration testing
Serve as the Subject Matter Expert (SME) for cloud-based infrastructure, specifically Azure Government and FedRAMP authorized services
Develop integrations between SharePoint and WordPress (e.g., automated document publishing) via APIs or middleware
Maintain technical documentation and System Security Plans (SSPs) required for Authority to Operate (ATO) renewals
Qualification
Required
Must have an active Secret security clearance
Bachelor's degree in Computer Science or IT-related disciplines
Minimum 10 years of professional experience in web development and systems administration, with at least 5 years specifically focused on Microsoft 365
Expert-level knowledge of SharePoint Online, including migration experience and SPFx development
Demonstrated success in building enterprise-grade Power Apps and complex Power Automate flows
Senior-level experience in PHP-based WordPress development, specifically within a containerized or PaaS environment
Proven experience managing applications on Cloud.gov, AWS GovCloud, or Azure Government
Deep understanding of Section 508 accessibility, NIST 800-53 security controls, and the Federal Information Security Modernization Act (FISMA)
Languages: PHP, JavaScript/TypeScript, C#, HTML5, CSS/SASS
Tools: Git, Azure DevOps, CLI (Cloud Foundry), VS Code
Identity: OAuth, SAML, Azure AD/Entra ID
Company
APTNEXUS
Founded in 2012, APTNEXUS is a premier provider of IT Services with a specialization in cybersecurity governance, risk, and compliance solutions for both information and operational technologies.
2-10 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase