NewPCB Design Engineer System OnePCB Design EngineerGermantown, MD$50–$75 / hourExperience with high-speed digital interfaces (DDR, PCIe, SERDES, etc.), RF layout and transmission line design, BGA fan-out and fine-pitch components, power distribution networks, and decoupling optimization (preferred). Perform component placement and routing for complex multilayer boards, including high-density and controlled impedance designs.
Protective Design Engineer Whitman, Requardt & Associates, LLPProtective Design EngineerBaltimore, MD$85,000–$135,000 / yearFull timeIncludes a wide range of protective design solutions (AT/FP, perimeter security, vehicle entry control points, blast/ballistic resistance, electronic security systems, etc.) in support of a varied client base. The specific compensation offered to a candidate may vary based on factors including, but not limited to, the candidate’s relevant knowledge, training, skills, work location, and/or experience.
Protective Design Engineer - Mid-Level Whitman, Requardt & Associates, LLPProtective Design Engineer - Mid-LevelBaltimore, MD$90,000–$150,000 / yearFull timeIncludes a wide range of protective design solutions (AT/FP, perimeter security, vehicle entry control points, blast/ballistic resistance, electronic security systems, etc.) in support of a varied client base. The specific compensation offered to a candidate may vary based on factors including, but not limited to, the candidate’s relevant knowledge, training, skills, work location, and/or experience.
Senior Protective Design Engineer Whitman, Requardt & Associates, LLPSenior Protective Design EngineerBaltimore, MD$100,000–$180,000 / yearFull timeIncludes a wide range of protective design solutions (AT/FP, perimeter security, vehicle entry control points, blast/ballistic resistance, electronic security systems, etc.) in support of a varied client base. The specific compensation offered to a candidate may vary based on factors including, but not limited to, the candidate’s relevant knowledge, training, skills, work location, and/or experience.
Software Engineer JobotSoftware EngineerArlington, VA$120,000–$150,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. If you have a solid grounding in software engineering, continuous delivery, and computer science, and are looking for a career opportunity to grow and leverage those skills to the fullest while working on cutting edge technologies – Here is the place to be!
NewData Engineer ( Databricks) Big Impact Tech (BIT)Data Engineer ( Databricks)Washington, DCFull timeThe ideal candidate will be responsible for designing, developing, and maintaining scalable data pipelines, data lakehouse solutions, and cloud-based data platforms that enable efficient data integration, storage, processing, and analytics. We are seeking a skilled Data Engineer with strong Databricks expertise to support Coast Guard data modernization, analytics, and cloud transformation initiatives.
NewObservability and Monitoring Engineer Capgemini Government Solutions (CGS) LLCObservability and Monitoring EngineerFort Meade, MD$120,000–$150,000 / yearFull timeThe ideal candidate has experience supporting large-scale production environments and working closely with DevOps, SRE, engineering, and cybersecurity teams to ensure systems are observable, resilient, and operationally efficient. Capgemini Government Solutions (CGS) LLC is seeking a Lead Observability Engineer to join our team in Ft Meade, MD to design, implement, and support enterprise monitoring and observability solutions for mission-critical systems.
Project Engineer - Structural Shoring & Civil Design Sunbelt RentalsProject Engineer - Structural Shoring & Civil DesignElkridge, MD$81,951–$112,682.90 / yearThis role bridges the gap between civil structural engineering analysis and geotechnical soil properties, producing critical project calculations and AutoCAD drawings under the direction of a Professional Engineer (PE). Certifications: Engineer-in-Training (EIT) certification or a licensed Professional Engineer (PE) is highly desirable (or the clear ability/desire to obtain your PE in the near future).
Electrical Engineer, Infrastructure Design JobotElectrical Engineer, Infrastructure DesignBaltimore, MD$120,000–$150,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We are a Full-Service Engineering company that specializes in providing design and engineering services for all aspects of building and utility infrastructure construction.
Structural Engineer Hillis-CarnesStructural EngineerAnnapolis Junction, MDFull timeHillis-Carnes Engineering Associates (HCEA) is an ENR Top 500, regional, multi-disciplined engineering firm with advanced capabilities in geotechnical and geostructural engineering, environmental consulting, specialty construction, construction materials engineering and testing, and third-party inspections. Project Management: Must be experienced in project management, with the ability to control schedules, budgets, resources, and provide the highest level of client services.
System Engineer JobotSystem EngineerAlexandria, VA$95,000–$110,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We are a leading provider of intelligent transportation and mobility solutions, delivering innovative software, systems, and services that help organizations manage complex transportation infrastructure more efficiently, safely, and sustainably.
Senior Software Engineer JobotSenior Software EngineerWest McLean, VA$140,000–$215,000 / yearWith first hand knowledge of problems that arise deploying software with millions of concurrent users worldwide, this paradigm changing tool will enable engineers to quickly, efficiently, and reliably develop and deploy large scale distributed systems autonomously. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.
NewElectrical Engineer - (MEP / Design-Build Consulting Engineers) JobotElectrical Engineer - (MEP / Design-Build Consulting Engineers)Vienna, VA$120,000–$170,000 / year8-10+ years of experience in design and specification of lighting systems, power systems, fire alarm systems, telecom/data systems, medium voltage power systems, UPS systems, emergency generator systems, grounding systems, and utility systems. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.
Project Engineer - Maritime Inmarsat Government, IncProject Engineer - MaritimeReston, VAFull timeBy providing powerful new ways for people to connect with one another, gain greater access to education, entertainment, medical research, commerce, and much more, our team is empowering millions of customers worldwide. The successful applicant will be driving projects which require integrated teams across Government and Industry partners, balancing stakeholder needs with the art of the possible.
Project Manager - Building Design Whitman, Requardt & Associates, LLPProject Manager - Building DesignBaltimore, MD$175,000–$210,000 / yearFull timeCome join our collaborative team of engineers and architects on a variety of challenging projects, including high-performance buildings, industrial and manufacturing facilities, office environments, mission critical/secure spaces, historic preservation, and higher education. Lead multidiscipline A/E teams through concept studies, final design, and construction phase services for clients across a broad range of markets, including DoD, Federal/Local Government and Industrial.
NewLead, Systems Engineer - Mission Protection L3Harris TechnologiesLead, Systems Engineer - Mission ProtectionSpringfield, VA$127,500–$236,500 / yearThe ideal candidate demonstrates strong leadership, technical depth in threat-informed engineering, and the ability to integrate Mission Protection requirements into operational planning, system architecture, and lifecycle activities. The selected candidate will apply operational security (OPSEC), counterintelligence, cyber defense, and threat analysis principles to protect critical systems and ensure the survivability and resilience of U.S. assets in contested and degraded environments.
Part-Time Project Manager - Building Design Whitman, Requardt & Associates, LLPPart-Time Project Manager - Building DesignBaltimore, MD$90–$125 / hourPart timeCome join our collaborative team of engineers and architects on a variety of challenging projects, including high-performance buildings, industrial and manufacturing facilities, office environments, mission critical/secure spaces, historic preservation, and higher education. Lead multidiscipline A/E teams through concept studies, final design, and construction phase services for clients across a broad range of markets, including DoD, Federal/Local Government and Industrial.
NewSpecialist, Systems Engineer - Watch Officer L3Harris TechnologiesSpecialist, Systems Engineer - Watch OfficerSpringfield, VA$92,500–$171,500 / yearActively participate in daily operations stand-up meetings to provide updates on ongoing activities, highlight key operational priorities, and address any challenges or risks impacting mission success. Possess knowledge of, or experience with, space operations, including managing and monitoring satellite systems, performing telemetry analysis, and conducting mission-critical activities such as orbital adjustments, payload operations, and anomaly resolution.
NewSenior Specialist, Systems Engineer - User Acceptance Tester L3Harris TechnologiesSenior Specialist, Systems Engineer - User Acceptance TesterSpringfield, VA$106,500–$197,500 / yearThe successful candidate will support a high performing team of Government and Contractor professionals by testing software releases to ensure they function correctly, documenting failed test cases, and documenting any changes or updates needed to existing procedures. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
Integration and Test Engineer NGB-12.24 CredenceIntegration and Test Engineer NGB-12.24Joint Base Andrews, MDThis includes reviewing weapon system contractor-provided integration program deliverables to assist the Government in their review of documentation and assisting in the development of organic data for the following systems engineering milestones: System Requirements Review (SRR), System Design Review, Preliminary Design Review, Critical Design Review, Test Readiness Review, and engineering design audits such as Functional Configuration Audit (FCA) and Physical Configuration Audit (PCA) respective to the needs of each modification program. Program coordination tasks shall include but not be limited to: coordinating all requirements between aircraft modification programs to include ground test requirements, flight test requirements, test assets, and any other potential resources; briefing and/or preparing briefings on modification program test status to the NGB as requested; assisting in identifying and developing test core documentation for modification programs, and; execution oversight for associated program test documents.
NewSenior DevSecOps Engineer, Lead CredenceSenior DevSecOps Engineer, LeadMcLean, VACollaboration & Knowledge Sharing: Work closely with software developers, cybersecurity teams, and cloud engineers to integrate security and automation into the software development lifecycle (SDLC). This hybrid role requires expertise in DevSecOps best practices, cloud automation, security compliance, and continuous integration/continuous deployment (CI/CD) to enhance the security, scalability, and efficiency of mission-critical applications.
System/DevSecOps Engineer NuAxis InnovationsSystem/DevSecOps EngineerWashington DC, DCThis role collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, Solution Architects, UX/UI Designers, QA Engineers, and DevSecOps teams to deliver end-to-end solutions across the full software development lifecycle. The Senior Full Stack Developer is responsible for designing, developing, integrating, and supporting secure, scalable, and high-performing enterprise web applications using modern cloud-native technologies.
NewPrincipal Cybersecurity Engineer- Architecture OneMain FinancialPrincipal Cybersecurity Engineer- ArchitectureBaltimore, MD$130,000–$156,000 / yearAlong with security platform mastery in more than one platform area (IDS/IPS, firewall/WAF, access and identity, malware defense, threat modeling, exposure management, among others), the Principal Cybersecurity Engineer is formally trained in enterprise IT design and architecture practices. The Principal Cybersecurity Engineer has a demonstrated mastery in multiple security and non-security technology platforms, with the ability to both lead and advise on the overall designs and strategies of both security and non-security technologies.
NewData Security Engineer System OneData Security EngineerVienna, VAProvide technical guidance and collaboration with other Cyber Security Engineers supporting technologies within designated area of focus (Data Scanning). Establish and maintain supporting documentation (architecture/data flow diagrams, runbooks, ServiceNow tickets, user stories and tasks).
Lead Network Engineer Above and Beyond Talent AcquisitionLead Network EngineerBaltimore, MD$60–$65 / hourContractorFull timeFor over 100 years, their dedicated team has helped customers improve their financial lives with responsible, transparent solutions for debt, medical bills, home improvements, and auto purchases. Client Info / Who they are: Above and Beyond Talent Acquisition represents the country’s largest lending-exclusive financial company, serving millions with safe, affordable installment loans through 1,500 branches in 44 states.
NewHybrid Cloud Engineer ECLAROHybrid Cloud EngineerWashington DC, DCCloud Operations & Reliability: Experience designing highly available systems using Azure-native tools for monitoring, backup, disaster recovery, and cost optimization. Virtualization & Core Infrastructure: Deep expertise in VMware (vSphere, ESXi, NSX, vCenter, SRM) and enterprise compute, storage, networking, and Active Directory.
Compliance Engineer PwrQ Holdings LLCCompliance EngineerHanover, MDWe are seeking a Compliance Engineer which supports pre-sales, estimating, engineering, manufacturing and field services by providing commercial and technical product regulatory expertise related to low and medium voltage power distribution equipment, E-houses and control systems. Experience in engineering roles within manufacturing, industrial, or related technical industries – specifically power distribution equipment (UL 508A, UL 891, UL 1558).
NewCloud DevOps / Credential Management Engineer System OneCloud DevOps / Credential Management EngineerWashington, DC$95,000–$168,000 / hourProvide advanced engineering, troubleshooting, and cloud support services while collaborating with development, security, and infrastructure teams to design and maintain secure, scalable, automated solutions. Hands-on experience working with credential management systems including Intercede MyID, HID solutions, PKI infrastructures, and certificate lifecycle management platforms.
NewSenior Transportation Engineer Whitman, Requardt & Associates, LLPSenior Transportation EngineerBaltimore, MD$190,000–$240,000 / yearFull timeWe are seeking an experienced senior-level Transportation Engineer to work with our Baltimore Office Transportation leadership to expand our transportation design and construction management services while overseeing projects and contracts for existing clients. This role involves leadership, project and contract management, and client relationship development and management for multimodal transportation services across the Mid-Atlantic region and nationally.
Liaison Engineer PwrQ Holdings LLCLiaison EngineerHanover, MD$80,000–$90,000 / yearProduction Support & Troubleshooting: provide on-the-spot solutions for manufacturing problems, such as improperly fitting parts or defective materials, often participating in Material Review Boards (MRB). The Liaison Engineer-Electrical serves as the critical bridge between engineering design, manufacturing, and quality control for our low-voltage power distribution equipment.
Quantum Engineer SME DCS CorporationQuantum Engineer SMESpringfield, VAPerform trade studies and conduct analyses to evaluate proposed quantum machine learning approaches, review technical reports, assess product-quality impacts, and characterize performance using quantum simulation or related technologies to support verification and quality assurance. The DCS Air and Space Technology Sector are seeking a qualified candidate to apply subject matter expertise in the areas of quantum engineering, analysis, and system design of complex programming projects supporting National Agencies.
NewLead Software Engineer OneMain FinancialLead Software EngineerBaltimore, MD$96,000–$115,200 / yearThe ideal candidate will have in-depth experience with Workforce Management (WFM), Customer Relationship Management (CRM) systems, call recording solutions, dialers, reporting tools, API integrations, and a strong hands-on working knowledge of NiceCX systems. Data modeling experience to design, develop, and maintain GraphQL APIs and Data Solutions using RDBMS like Aurora, Postgres, and in-memory data stores like Amazon Memory DB and Redis, ensuring optimal performance, data integrity, availability and scalability.
NewPalantir Integration Engineer System OnePalantir Integration EngineerMcLean, VARemoteExperience with Palantir AIP (Artificial Intelligence Platform) (required), including development or support of AI-enabled workflows (e.g., search, analytics, decision support). Operate within an Agile delivery model, contributing to sprint planning, backlog refinement, user story development, and iterative delivery of technical solutions.
Network Engineer MANTECHNetwork EngineerJoint Base Andrews, MDOccasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations. High School Diploma or GED with 7+ years of progressively responsible experience in Network Engineering, Network Analysis, or a related technical discipline.
NewPrincipal Optical Engineer Davron LLCPrincipal Optical EngineerLorton, VAPRINCIPAL OPTICAL ENGINEER | EOIR | IMAGING SENSOR OPTICAL DESIGN | LASER OPTICAL DESIGN | ZEMAX | CODE V | DRI RANGE MODELING | OPTICAL LAB WORK | BORESIGHTING | OPTICAL SME SUPPORT | ACTIVE DOD SECRET CLEARANCE | STABILIZATION SYSTEMS . 10+ years of imaging and laser optical design experience, including EOIR/imaging sensor optical components, DRI range modeling, and lens/component design in Zemax/CODE V.
NewStructural - Project Engineer System OneStructural - Project EngineerAlexandria, VABachelor’s degree or higher in Civil Engineering (Structural focus) or Architectural Engineering from an ABET-accredited program. We’re looking for a Structural Project Engineer to join a dynamic, employee-owned architecture and engineering team that values innovation, collaboration, and professional growth.
NewMicrosegmentation Engineer System OneMicrosegmentation EngineerVienna, VARemoteThis role will focus on designing, implementing, and supporting microsegmentation controls using Illumio to reduce lateral movement risk and enforce least-privilege access across enterprise workloads. The engineer will analyze application traffic flows, create and enforce microsegmentation policies, reduce lateral movement risk, troubleshoot connectivity issues, and work closely with infrastructure, application, cybersecurity, and architecture teams.
NewStaff Backend Engineer - Application Core Services, Stacks Grafana LabsStaff Backend Engineer - Application Core Services, StacksWashington DC, DCRemoteOur work includes maintaining the billing engine responsible for customer usage calculation, automating provisioning after a customer signs a contract, integrating with cloud marketplaces such as AWS, Azure, and GCP, and building and maintaining the user portal our customers rely on to manage their accounts. Today, more than 35 million users and 7,000+ customers – including Anthropic, Bloomberg, NVIDIA, Microsoft, and Salesforce – trust Grafana Labs to ensure reliability of their applications and systems, resolve incidents quickly, and optimize their telemetry to reduce noise and cost.
Sr. DevOps Engineer (Saas App./Accela/OpenGov) TRIGYN TECHNOLOGIES, INC.Sr. DevOps Engineer (Saas App./Accela/OpenGov)Baltimore, MD$75–$80 / hourContractorThe ideal candidate will have extensive experience in designing, developing, and maintaining high-performance applications and will play a key role in driving our software initiatives forward. In addition, the Senior DevOps Engineer must have experience implementing, customizing, and supporting popular Government Saas applications such as, but not limited to, Accela and OpenGov.
Sr. Systems Engineer - Microsoft 365 Trigyn Technologies IncSr. Systems Engineer - Microsoft 365Baltimore, MDTemporaryContractorFull timeExperience managing directory sync into Azure AD and deep knowledge of Azure AD Sync for Federation, authentication, SSO, and directory sync with Azure AD. Systems engineer – Microsoft 365 to develop solutions for e-mail and collaboration tools as well as handle day-to-day operations within the division.
Prin Engineer (Underground Transmission) ExelonPrin Engineer (Underground Transmission)Washington, DC$122,400–$168,300Develops and/or leads teams in studies, plans, criteria, specifications, calculations, evaluations, design documents, performance assessments, integrated systems analysis, cost estimates, budgets, associated with the planning, design, licensing, construction, operation, and maintenance of Exelon's electric generation, transmission, distribution, gas, and telecommunication facilities/systems. We are a Fortune 200 company, 19,000 colleagues strong serving more than 10 million customers at six energy companies -- Atlantic City Electric (ACE), Baltimore Gas and Electric (BGE), Commonwealth Edison (ComEd), Delmarva Power & Light (DPL), PECO Energy Company (PECO), and Potomac Electric Power Company (Pepco).
NewCommercial Construction Project Engineer HITT ContractingCommercial Construction Project EngineerFalls Church, VA$77,000–$82,000 / yearMaster required job-specific and technical skills in order to promote to an assistant superintendent or assistant project manager following the 12-month training program including, but not limited to, the ability to: Set up and maintain jobsite office and all jobsite records, including project directory, construction documents, subcontractor directory, daily reports, submittal logs, RFI logs, subcontractor correspondence, etc. Ability to learn sector- and project-specific software systems, including but not limited to: Microsoft Office 365 (Project, Excel, Word, Outlook, PowerPoint, etc.), ProCore, Adobe Suite, BlueBeam, and JD Edwards software suite.
NewConstruction Project Engineer - Industrial Projects System OneConstruction Project Engineer - Industrial ProjectsArlington, VA$75,000–$110,000 / yearAs a Construction Project Engineer , you will work onsite with the Project Team to plan, develop, coordinate, and manage onsite construction engineering activities for Industrial projects – primarily Water/Wastewater Treatment plant construction but also factories/production facilities, data centers , focused mostly in Northern Virginia, District of Columbia (DC), and Baltimore area. Develop, implement, and administer project engineering procedures and other work controlling documents (submittals, RFI’s, expediting material deliveries, payment of Subcontractors/Vendors, and Owner pay requests).
Software Engineer with TS-SCI with Poly System OneSoftware Engineer with TS-SCI with PolyFort Meade, MD$97,000–$224,000 / yearBachelor’s degree in Computer Science or related discipline from an accredited college or university OR four (4) years of additional SWE experience on projects with similar software processes in lieu of degree. Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design.
NewSenior Associate, Cloud Engineer - Terraform KPMGSenior Associate, Cloud Engineer - TerraformWashington, DCQualifications: Minimum three years of recent experience in IT infrastructure technology management and architecture including IaaS/PaaS/DevOps cloud transformation programs and infrastructure automation, prior system/storage; admin/engineering experience and consulting experience; four years of cloud strategy, migration, and transformation leadership including cloud services (IaaS/PaaS) implementation & migration, including Azure or AWS. Additional desirable experience in infrastructure automation and instrumentation (Unix Admin, Scripting / Programming Capabilities, SDLC Process Knowledge), Unified Communications, Collaboration, Database/application server architecture, network, information security, GenAI, RAG.
NewData Engineer GuidehouseData EngineerArlington, VA$113,000–$188,000 / yearThe ideal candidate will have hands-on experience with modern data engineering tools, cloud services, CI/CD, and version control, and will collaborate with cross-functional teams to deliver high-quality, scalable data solutions. Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs.
Water/Wastewater Process Mechanical Engineer - Entry Level Whitman, Requardt & Associates, LLPWater/Wastewater Process Mechanical Engineer - Entry LevelBaltimore, MD$72,000–$97,000 / yearFull timeA copy of current, or most recent, school transcript (If you are applying via a 3rd party site that does not allow attachments, please email transcript to careers@wrallp.com. Whitman, Requardt & Associates, LLP (WRA) is seeking a motivated Entry-Level Water/Wastewater Process Mechanical Engineer to join our dynamic team in Baltimore, MD.
NewElectrical Hardware Engineer LeidosElectrical Hardware EngineerArlington, VA$87,100–$157,450If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . Our division currently has an exciting opportunity for an Electrical Hardware Engineer to design, development, and build of radio-frequency (RF) and digital electronic hardware from prototypes through production support in Arlington, VA for the Electronic Warfare Division.
Senior Cyber AI Operations Engineer (Onsite) System OneSenior Cyber AI Operations Engineer (Onsite)Washington, DCThe ideal candidate will have experience working with a variety of AI technologies and models and will have exceptional working knowledge on the architecture and design requirements to implement AI solutions that support cybersecurity operations (e.g., intrusion detection, intrusion prevention, incident response, vulnerability analysis, security tests and evaluations, etc.). • Design, implement, deploy, maintain, and evolve AI-enhanced cybersecurity solutions that support a broad range of functions including intrusion detection, intrusion prevention, incident response, insider risk, vulnerability analysis, threat hunting, cyber threat intelligence, and security test and evaluation activities.
Sr. GIS Solution Engineer - Public Safety EsriSr. GIS Solution Engineer - Public SafetyVienna, VA$98,592–$173,576 / yearCompensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. Broad knowledge of ArcGIS from an IT context (such as hardware, storage, security, networking, web services, virtualization, cloud computing).