• Design hardware, operating systems, software applications and secure interfaces to meet cybersecurity requirements across information systems, physical systems and embedded technologies. • Perform risk analysis (threat, vulnerability and probability of occurrence) when applications or systems undergo major changes and develop mitigation strategies for cost, schedule, performance and security risks. • Conduct security reviews to identify gaps in architecture, recommend security changes to system components and incorporate vulnerability solutions into system designs. • Design, develop, integrate and update system security measures that support confidentiality, integrity, availability, authentication and non-repudiation. • Develop detailed security design documentation for components and interfaces, including functional descriptions of security implementation and keep documentation current. • Identify components and elements, allocate security functions and describe relationships between system elements; trace requirements to design components and perform gap analysis. • Implement security designs for new or existing systems and direct remediation of technical issues discovered during testing and implementation (including interoperability and protocol issues). • Develop and direct system testing and validation procedures and documentation; analyze test data and translate results into evaluative conclusions. • Identify, assess and recommend cybersecurity or cybersecurity-enabled products for system use, ensuring compliance with organizational evaluation and validation requirements. • Provide input to implementation plans, SOPs, RMF process activities and documentation and support security/certification test and evaluation activities. • Build, test and modify prototypes using working or theoretical models; use models and simulations to predict performance under different operating conditions. • Verify stability, interoperability, portability and scalability of the system architecture and security design.

• Reviews, analyzes, and evaluates business systems and user needs • Documents requirements, defines scope and objectives and formulates systems to parallel overall business strategies • Detects, and reports system errors and discrepancies, and analyzes and develops specifications for correcting errors • Assists in maintaining interfaces between commercial system vendors • Performs functionality and system testing to simulate end-user experience. • Performs exploratory testing and analysis for quality assurance before an application is released. • Identifies and proposes changes to systems and workflows • Leads facilitated sessions with business users to identify system enhancements • Documents and gains sign-off on business requirements • Communicates with project team members and external customers to ensure that critical information is shared • Assists in organization of release dates for all version updates with carrier systems • Creates training material and trains end users on systems enhancements and new programs

• Serve as a Level 3 technical expert for .NET-based applications, providing advanced troubleshooting and support. • Participate in off-hours, weekend, or on-call support rotations as required to support critical systems and incident response. • Perform root cause analysis for complex production issues and implement long-term corrective actions. • Analyze system behavior, logs, and performance metrics to identify trends, risks, and improvement opportunities. • Partner with development and product teams to translate business requirements into technical solutions. • Design and implement system enhancements and fixes to improve stability, performance, and maintainability. • Guide and support Change Management activities, ensuring effective release planning and production readiness. • Create and maintain technical documentation, including system flows, impact analyses, and support runbooks. • Support and enhance CI/CD pipelines and operational support processes. • Act as a technical mentor and escalation resource for junior analysts and support team members. • Promote continuous improvement through automation, modernization, and adoption of best practices.

• manage and develop ESRI Enterprise infrastructure, ArcGIS Online environments, and custom geospatial applications • support Environment, Transportation, and Water business lines • deliver mobile/web GIS solutions for infrastructure management, environmental permitting, and asset management • report to the Digital Technologies Manager in the Technology Services Group • support both internal and external clients • work both independently and in close coordination with various AECOM staff and project teams