Node.Digital

Systems Engineer

• Design federated learning architectures for 1000+ node tactical edge networks
• Implement secure MPC protocols enabling cross-domain data sharing with <300ms latency
• Optimize QUIC-based communication stacks for operation under persistent jamming conditions

Distributed Systems Architect

Backend Engineer

• Develop application and backend services using C#, ASP.NET MVC, ASP.NET Core, Web API, Node.js and related technologies
• Automate tasks using scripted languages such as Bash, PowerShell, or Perl
• Develop and maintain web services (MVC, WCF, Web APIs) and RESTful APIs
• Design and maintain user interfaces using HTML, JavaScript, CSS, jQuery, Chart.js, and Bootstrap; implement UI Ajax interactions
• Develop, maintain, and tune relational database objects (Stored Procedures, Functions) and optimize SQL performance
• Implement ASP.NET Core middleware, dependency injection, authentication/authorization, and Razor views
• Integrate and work with AWS cloud services and GitHub Enterprise for source control and CI/CD
• Perform other tasks as assigned in support of operational needs

Mid/Senior .NET Full Stack Developer

Analyst

• Node provides remote and onsite advanced technical assistance, proactive hunting, rapid onsite incident response, and immediate investigation and resolution using host-based, network-based and cloud-based cybersecurity analysis capabilities.
• Team personnel provide front line response for digital forensics/incident response (DFIR) and proactively hunting for malicious cyber activity.
• Use information collected from a variety of sources to monitor network activity and analyze it for evidence of suspicious behavior.
• Monitor and analyze to identify and report events that occur, or might occur, within the network, to protect information, information systems, and networks from threats.
• Assist the Government lead in coordinating teams in preliminary incident response investigations
• Assist the Government lead with interfacing with the customer while on site
• Determine appropriate courses of actions in response to identified and analyses anomalous network activity
• Assess network topology and device configurations identifying critical security concerns and providing security best practice recommendations
• Collect network intrusion artifacts (e.g., PCAP, domains, URI’s, certificates, etc.) and use discovered data to enable mitigation of potential Computer Network Defense incidents
• Analyze identified malicious network activity to determine weaknesses exploited, exploitation methods, effects on system and information
• Collect network device integrity data and analyze for signs of tampering or compromise
• Assist with real-time CND incident handling (i.e., forensic collections, intrusion correlation and tracking, threat analysis, and advising on system remediation) tasks to support onsite engagements

Network-Based Systems Analyst

Full-stack Engineer

• Supporting teams to migrate services, applications and platforms from legacy back-end systems to Databricks.
• Identifying the optimal path for migration, building the plan for migration and finally, execution of the plan.
• Data Pipeline migration of legacy pipelines from NiFi to Databricks, complete with validation.
• Implementing the medallion model for each of the data assets being migrated to Databricks.
• Develop an SOP for integration of data assets into the Databricks platform focused on efficiency, instrumentation and performance.
• Optimize development, testing, monitoring and security for data assets being added to the Databricks platform.
• Develop and implement a strategy for optimizing migration and integration of data assets to the Databricks platform.
• Develop code using various programming and scripting languages to automate/optimize data ingestion, pipeline orchestration and improve data management processes.
• Ingest transparency, leveraging technologies such as AWS CloudWatch to identify places for measuring and gathering performance information on automated data pipelines
• Ensure Data Engineering Team Standard Operating Procedures are appropriately captured and communicated across the team.
• Ensure technical correctness, timeliness and quality of delivery for the team.
• Demonstrate excellent oral and written communication skills to all levels of management and the customer.

Software Engineer, Databricks

Administration

• Apply advanced analytical skills and technical resources at the tactical levels and implement infrastructure solutions supporting command decision making and execution of mission requirements
• Support the implementation of new technologies and equipment in the lab environment
• Provide ongoing systems administration, technical support, upgrades, patching and troubleshooting services
• Provide full coverage for Linux or Unix system administration functions to support the TEN infrastructure
• Manage assigned project components to deliver services in accordance with established objectives
• Advise and provide insight on development of lab standard operating procedures (SOPs) and policies
• Maintain configuration and support documentation
• Employ security concepts, theories, insights, tools and methodologies to mitigate system weaknesses and vulnerabilities
• Perform large scale configuration management and deployment across Windows, MacOS, Linux/Unix, and other operating systems and virtual environments
• Monitor RedHat platforms security and health, create and maintain reports of findings daily
• Create next-generation application platform automation solutions utilizing RedHat Openshift, RedHat Ansible automation, Docker, Kubernetes, and Podman
• Integrate and configure COTS, GOTS, and third-party applications into RedHat Openshift and manage, maintain and patch containerized applications
• Create and support development of automation solutions for deployment of systems and applications to virtual and physical devices using RedHat Openshift, RedHat Ansible Tower, and RedHat Satellite
• Implement granular access control, monitor systems performance and user accessibility, establish backups, and monitor systems security
• Troubleshoot and resolve complex storage problems across the enterprise related to storage and replication strategies across local and wide area networks
• Examine and identify efficiencies in existing procedures, with approval from the customer

Lab Manager / System Administration

• Work onsite in Ashburn, VA as Java Developer (Junior/Senior)
• Develop and maintain applications using SpringBoot, ReactJS, and REST APIs
• Work with AWS, Oracle, MySQL, Weblogic, and Tomcat
• Collaborate with team members using Agile methodologies
• Support customer's mission and deliver secure, high-quality solutions

Java Developer – Junior/Senior

Manager

• Support onsite incident response to civilian Government agencies and critical asset owners experiencing cyber-attacks
• Perform investigations to characterize severity of breaches, develop mitigation plans, and assist with restoration of services
• Correlate incident data to identify trends in reported incidents
• Recommend defense-in-depth principles and practices
• Perform Computer Network Defense incident triage (determine scope, urgency, potential impact)
• Research and compile known resolution steps or workarounds to enable mitigation
• Apply cybersecurity concepts to detection and defense of intrusions and conduct cursory log analysis
• Monitor external data sources to maintain currency of CND threat conditions
• Identify cause of incidents and determine key elements and potential infection vectors
• Receive and analyze network alerts from various sources and determine possible causes
• Track and document CND incidents from initial detection through final resolution and coordinate information across components
• Provide support during assigned shifts (M-F Day Shift)

Cyber Incident Manager / Incident Manager

Technical Writer

• Technical Writer & Editor
• Location: Arlington, VA
• Must have an active Top Secret Clearance
• Must be able to work on-site 0800-1630 M-F
• Node is supporting a U.S. Government customer to provide support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing immediate investigation and resolution. Contract personnel perform investigations to characterize of the severity of breaches, develop mitigation plans, and assist with the restoration of services.
• Node is seeking a Technical Writer to support this critical customer mission.
• Responsibilities:
• - Developing and reviewing technical communications deliverables including cybersecurity documentation, operational procedures, plans, action reports, and meeting minutes, coordinating with Incident Management teams to obtain necessary input data.
• - Preparing, reviewing, editing, and maintaining program technical documents, standard operation procedures, work instructions, CONOPS, and internal team messaging.
• - Maintaining statistical diagrams and charts of team engagement reports.
• - Must be able to work on-site 0800-1630 M-F

Technical Writer, Editor

• Node provides remote and onsite advanced technical assistance, proactive hunting, rapid onsite incident response, and immediate investigation and resolution using host-based, network-based and cloud-based cybersecurity analysis capabilities
• Provide front line response for digital forensics/incident response (DFIR) and proactively hunting for malicious cyber activity
• Characterize and analyze network traffic to identify anomalous activity and potential threats to network resources
• Coordinate with enterprise-wide cyber defense staff to validate network alerts
• Document and escalate incidents (including event's history, status, and potential impact for further action) that may cause ongoing and immediate impact to the environment
• Perform cyber defense trend analysis and reporting
• Perform event correlation using information gathered from a variety of sources within the enterprise to gain situational awareness and determine the effectiveness of an observed attack
• Provide daily summary reports of network events and activity relevant to cyber defense practices
• Receive and analyze network alerts from various sources within the enterprise and determine possible causes of alerts
• Provide timely detection, identification, and alerting of possible attacks/intrusions, anomalous activities, and misuse activities and distinguish these incidents and events from benign activities
• Use cyber defense tools for continual monitoring and analysis of system activity to identify malicious activity
• Analyze identified malicious activity to determine weaknesses exploited, exploitation methods, effects on system and information
• Identify and analyze anomalies in network traffic using metadata
• Validate intrusion detection system (IDS) alerts against network traffic using packet analysis tools
• Identify applications and operating systems of a network device based on network traffic
• Reconstruct a malicious attack or activity based off network traffic
• Identify network mapping and operating system (OS) fingerprinting activities
• Assist in the construction of signatures which can be implemented on cyber defense network tools in response to new or observed threats within the network environment or enclave