Dunhill Professional Search

Current TS or Q clearance is desirable OR must be able to obtain a Q clearance This position is to support The Department of Energy The Network Security Engineer is a critical hands-on role responsible for the daily operation, maintenance, and troubleshooting of the enterprise firewall and network security infrastructure. Manage firewall upgrades. Respond to security incidents. Handle service tickets. Collaborate with various internal teams and external vendors to ensure the stability, integrity, and security of the network. Identifies additional application security related tools, conducts tool analysis, and provides recommendations on what tools will enhance security protocols. Performs and conducts penetration tests and manual/automated code reviews. Designs, develops or recommends integrated system solutions ensuring proprietary/confidential data and systems are protected. Minimum Qualifications Bachelor's Degree in Computer Science, Engineering, or other Engineering or Technical discipline or equivalent relevant experience. Master's Degree preferred. 5+ years of experience as Network Security Engineer or similar. Current TS or Q clearance is desirable Other Job Specific Skills Proactive problem-solver. Deep technical expertise in Palo Alto Networks firewalls. Strong understanding of enterprise network environments. Palo Alto Networks Firewall Operations. Security Operations Management. Networking fundamentals. Proxy and web security. Incident and service management. VPN technology.

Performance & Reliability Engineer San Antonio, TX: Hybrid US Citizenship We are seeking a Performance & Reliability Engineer to hire in support of the EDUCATION- DCC program. This is a great opportunity for someone who enjoys collaborating across teams, solving complex technical challenges, and improving system reliability. Job Description : Plays a crucial role in maintaining and enhancing the reliability, availability, and performance of our applications and services. You will leverage your expertise in AWS operations, infrastructure as code, and deployment automation to streamline processes, reduce downtime, and improve overall system performance. Key Responsibilities: Ensure the reliability, availability, and performance of applications and services through proactive monitoring, incident response, and capacity planning. Manage and optimize AWS cloud infrastructure to support scalable and resilient application operations. Develop, implement, and maintain infrastructure as code using tools such as Terraform, CloudFormation, or similar. Automate deployment processes to ensure consistent and reliable delivery of software updates and infrastructure changes. Collaborate with development teams to design and implement solutions that enhance system performance and reliability. Conduct root cause analysis for incidents and implement strategies to prevent recurrence. Establish and maintain monitoring, alerting, and logging frameworks to ensure visibility into system health and performance. Participate in on-call rotations to provide 24/7 support for critical systems and applications. Drive continuous improvement initiatives to enhance operational efficiency and reduce technical debt. Minimum Qualifications Bachelor's Degree in Information Technology, Computer Science or a related field or equivalent relevant experience. 0-3 years of experience in information technology, systems administration or other IT related field. Job Qualifications: Strong expertise in AWS cloud services, including EC2, S3, RDS, Lambda, etc. Proficiency in infrastructure as code tools such as Terraform, CloudFormation, or similar. Experience with deployment automation tools and frameworks (e.g., Jenkins, Ansible, Puppet, Chef). Solid understanding of monitoring, alerting, and logging tools (e.g., Dynatrace, Splunk, Prometheus, Grafana, ELK Stack). Strong scripting and automation skills using languages such as Python, Bash, or PowerShell. Excellent problem-solving and troubleshooting skills. Strong communication and collaboration abilities. Other Job Specific Skills Strong knowledge of Microsoft Operating Systems and products that include Microsoft Windows, Windows Servers, Microsoft Office365 and SharePoint, Microsoft Teams Applies standard methodology, techniques, procedures and criteria. Ability to analyze, troubleshoot and resolve basic/routine system hardware, software or networking related problems. Ability to plan and coordinate the deployment of new technology and resolve technical problems individually and as a project participant. Ability to communicate effectively, both orally and in writing and to translate technical terminology into terms understandable to non-technical employees. Exceptional customer service skills. Experience preferred with cloud infrastructure, digital workspace, and storage technology

VDI Systems Administrator Onsite - Germantown, MD, Oak Ridge, TN or Lemont, IL US CITIZENSHIP REQURED We are looking for someone with strong Virtual Desktop Infrastructure experience to join an exciting project with the Dept of Energy. This role does not require a clearance and is a great way to expand expertise in a federal space! The VDI Systems Administrator will provide Tier III IT operations support across the Office of Information Management (OIM) and SC mission systems, with a focus on virtual desktop infrastructure (VDI) lifecycle management, performance optimization, and compliance. This role is responsible for operating and maintaining our VDI environment, primarily built on VMware Horizon, along with associated virtualization infrastructure (vSphere), ensuring secure, reliable, and compliant virtual desktop and application delivery in alignment with DOE directives. The ideal candidate will have strong expertise in VDI architecture, golden image management, policy enforcement, and automation, while supporting hybrid environments and evolving

Supports the creation of cyber-intelligence tools / methods and assists with research and analysis in order to mitigate and eliminate data and cyber security risks. Assists with the development of acceptance criteria for cybersecurity architecture. Monitor and analyze network traffic, Intrusion Detection Systems (IDS), security events and logs. Prioritizing and differentiating between potential intrusion attempts and false alarms. Develop, maintain, and follow SOC Standard Operating Procedures (SOPs). Support daily and monthly situation reporting per shift. Proactively reviewing large data sets for anomalous activity. Create detective content for monitoring devices such as IDS and SIEM and advise on proactive blocks for security architecture. Creating and tracking security investigations to resolution. Composing security alert notifications and other communications. Advising incident responders in the steps to take to investigate and resolve computer security incidents. Staying up to date with current vulnerabilities, attacks, and countermeasures. Minimum Qualifications Bachelor's Degree in Computer Science or a related field or equivalent experience. 2+ years of experience in systems security. Active Secret Clearance Certified Ethical Hacking (CEH) certification or CompTIA CySA+ and (within 6 months of hire) any from the CSSP Analyst, Infrastructure Support, or IR from the DOD 8570 list (or other similar certifications as approved by Government) Other Job Specific Skills Ability to work a shift schedule. Able to multitask and give equal attention to a variety of functions while under pressure. Must be able to communicate effectively and clearly present technical approaches and findings. Exercises a limited degree of latitude in determining technical objectives of assignments. Experience in handling incident response. Strong attention to detail.

Sr Linux Engineer Onsite in San Antonio, TX U.S Citizenship Required Work with applications, network, storage, Linux, & Security engineers to improve ongoing technical operations and maintenance activities of the client's environment. This role will include rotating on-call shifts in addition to normal business hour support (rotations average 1 week per 1.5 months). Provide advanced Linux support across a variety of server use cases, including improvement of Linux automation for provisioning, configuration management, and security remediations.

Sr System Engineer Onsite at one of the following locations: Oak Ridge, TN; Germantown, MD: or Lemont, IL U.S Citizenship Required The Systems Engineer (Azure) will design, implement, and optimize cloud and hybrid infrastructure solutions within Microsoft Azure to support enterprise IT services and mission-critical workloads. This role requires strong technical depth in Azure platform services, identity, automation, and infrastructure-as-code, combined with the ability to work across engineering, cybersecurity, and operations teams. The engineer will contribute to the full system lifecycle - from requirements analysis and architecture design through secure integration, deployment, documentation, and transition to operations. This position is ideal for someone who thrives in a hybrid cloud environment and can balance hands-on engineering with strategic planning and modernization initiatives.

US Cit Responsible for a development project, may provide general oversight and direction to the developers on the project in an experienced developer capacity. Conceives, designs, and tests logical structure to meet program requirements. Writes programs according to specifications provided. Builds, deploys and maintains programs, Web Site pages and applications. Develops and improves site navigation and applications. Responsible for the design, development, and configuration of software systems to meet market and/or client requirements. Develops code using C#, Javascript, or other programming languages. Writes, tests, and develops computer programs. Work with the client/product owner(s), functional team(s), and other technical resources to design, build, and deploy applications in full stack .Net technologies in accordance with stated requirements. Assist in the operations and maintenance activities for a suite of seven HR applications that require solid understanding of the (frontend) user interface logic. Assist in the operations and maintenance activities for (backend) server-side logic such as C#, ASP.Net, MVC and VB.Net frameworks. Microsoft SQL Server querying and scripting. Reporting Services development. Maintains compliance with standards and conventions in developing programs. Develops required specifications for complex programs or problems. Develops the requirements of a product from inception to conclusion. Tests, debugs, and refines the software to produce the required product. Conducts systems tests, monitors test results, and takes appropriate corrective action for complex issues. Creates coded unit tests and works with Testers/Information Assurance to address program and/or security findings. Acts as a mentor to less-experienced team members. Prepares required documentation, including block diagrams, logic flow charts and software program documentation. Minimum Qualifications Bachelor's Degree in Computer Science, Information Systems or a related field or equivalent relevant experience. 5-10 years of experience with programming or web development activities. Must be willing to come to the office at least twice a week. Other Job Specific Skills Working knowledge of Configuration Management and Release Management best practices is required. Must be detail oriented, as well as able to work well with clients. Experience with C#, ASP.Net, SQL Participate in all phases of software development with a focus on design, development, and implementation using C# and SQL Experience designing scalable databases and developing applications against a relational database such as Oracle or SQL Server preferred. Excellent verbal and written communication skills. Must work efficiently within multiple teams. Ability to multi-task, work well under pressure, and work in a closed environment with others. Maintains current knowledge of relevant technology. Strong problem solving, logic, and analytic skills. Applies knowledge of technologies, applications, methodologies, processes and tools to support a client, project or entity. Familiar with and utilized best programming standards and practices in a professional capacity. Experience in information system design, including application programming on large-scale case management systems and the development of software to satisfy design objectives.

Service Desk Agent - Tier 1 Onsite in Oak Ridge, TN U.S Citizenship Required The Service Desk (Tier 1) Support Contractor will serve as the primary point of contact for all end-user IT issues, requests, and inquiries. This role requires strong technical troubleshooting skills, customer service excellence, and the ability to manage incidents in alignment with defined service level agreements (SLAs). The contractor will support a wide range of enterprise IT services and technologies, ensuring reliable and efficient IT operations for both on-site and remote users. This role is stationed at Oak Ridge, TN and requires full on-site. Key Responsibilities Provide comprehensive Tier 1 Service Desk support, including incident intake, call management, initial troubleshooting, resolution, or escalation as appropriate. Respond to incidents and service requests according to assigned criticality and established SLAs. Operate and maintain an approved ticketing and tracking system to log, monitor, and document all user interactions, resolutions, escalations, and follow-ups. Support enterprise IT services and end-user technologies, including: Operating systems (Windows, macOS) Office productivity platforms (Microsoft 365) Cloud collaboration tools Mobile devices (iOS, Android) Common peripherals and communication services Assist users with VPN and virtual desktop infrastructure (VDI) troubleshooting, leveraging secure remote access tools. Ensure Service Desk personnel maintain foundational knowledge in hardware, software, networking, and troubleshooting methodologies aligned with industry standards (CompTIA A+, ITIL v4 Foundations, HDI). Demonstrate proficiency in modern productivity and collaboration tools (Microsoft 365), basic data analysis tools (Power BI), and awareness of emerging technologies such as AI-driven tools and self-service platforms. Contribute to and maintain a knowledge base of common issues and solutions to promote user self-service and reduce call volume. Conduct trend and root cause analysis to identify opportunities for incident reduction and service improvement. Support the generation of operational metrics and reports to support performance monitoring and continuous improvement, including incident trends, recurring issues, service request volumes, and customer satisfaction data. Provide ad hoc reports as requested. Demonstrate flexibility to support evolving technology platforms, service delivery models, and organizational needs as directed. Support a shared on-call schedule as needed Qualifications U.S Citizenship Excellent communication and customer service skills. Foundational knowledge equivalent to CompTIA A+ or similar industry-recognized certifications. Familiarity with ITIL v4 Foundations or HDI standards for IT service management. Experience with enterprise IT environments, including Windows, macOS, Microsoft 365, VPN, and VDI. Strong troubleshooting skills across hardware, software, and networking concepts. Ability to adapt to new technologies and evolving service delivery mo