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.
NewJunior Network Engineer System OneJunior Network Engineer20817, MDRemote$40–$45 / hourFamiliarity with tools such as Ansible, ARX, Cisco ISE, Prime, UCS, Infoblox, NexusOS, New Relic, Puppet, Riverbed, SCOM, ServiceNow, SolarWinds, Splunk, StealthWatch, Git, GitHub, Jenkins, Jira, Confluence. • Work with internal teams and Federal Agency to manage, troubleshoot, and monitor data solutions leveraging Routing Protocols (OSPF/BGP), Switching technologies (Spanning Tree, VSS).
NewCloud Network Engineer System OneCloud Network EngineerGreenbelt, MDRemote$130,000–$140,000 / hourThis position will be responsible for managing the configuration, installation, and ongoing support of the Network Infrastructure, which includes Palo Alto firewalls, Cisco VPN Concentrators, Cisco CSR devices, as well as Networking in cloud platforms such as Azure and OCI. Work with the existing network administrators and engineers to manage, deploy, and troubleshoot firewalls, routers, VPN concentrators, and Network Access Control in cloud platforms.
IP Network Test Engineer By Light Professional IT ServicesIP Network Test EngineerFort Meade, MDExpertise in large-scale IP Networking & Testing with backbone routers (Juniper MX and Cisco ASR9K) running ISIS, BGP/MP-BGP (multi AS), MPLS routing protocols, switches and testing gear including traffic generators from IXIA, Spirent Test Center and Agilent N2X. These technologies include network devices (routers, switches, firewalls, and Intrusion Detection Systems (IDS), and services Authentication, Authorization and Accounting (AAA), Access Control List (ACL), secure remote access (i.e Secure shell, Secure VPN, IPSec), and IPv6 capable devices.
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.
NewNetwork Engineer System OneNetwork EngineerWashington, DC$70–$80 / hourCertifications: AWS Advanced Networking Specialty (preferred), Palo Alto PCNSE, DoD 8570/8140 IAT II. Apply AWS networking depth including TGW, VPC peering, Direct Connect, DC Gateway, NAT/PAT design.
Senior Network Engineer LeidosSenior Network EngineerAccokeek, MD$107,900–$195,050The Senior Systems Engineer will provide technical leadership and support in the areas of IT planning, solution specification/design, implementation and target architecture development for the AFNCR Consolidated Communication Center (CCC). If 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.
Communications Network Engineer III By Light Professional IT ServicesCommunications Network Engineer IIIFort Meade, MDBy Light also considers other variables such as (but not limited to) work experience, education, training, skill set, internal peer equity, clearance level and market conditions when extending an offer. By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next.
NewSenior Network Engineer Systems Plus, Inc.Senior Network EngineerWashington, DCFull timeHolding many Defense & Federal government contracts around the globe, with Systems Plus, you have the opportunity to take on new and evolving challenges, aim beyond what you think you are capable of, and work in collaborative, dynamic, and high-tempo environments. We are committed to your success and well-being and offer competitive benefits packages, salaries, bonus/award programs, and a high potential for professional growth and job opportunities worldwide.
NewNetwork Engineer Systems Plus, Inc.Network EngineerWashington, DCFull timeHolding many Defense & Federal government contracts around the globe, with Systems Plus, you have the opportunity to take on new and evolving challenges, aim beyond what you think you are capable of, and work in collaborative, dynamic, and high-tempo environments. We are committed to your success and well-being and offer competitive benefits packages, salaries, bonus/award programs, and a high potential for professional growth and job opportunities worldwide.
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.
RF Design & Test Engineer TeleWorld SolutionsRF Design & Test EngineerReston, VATeleWorld Solutions is seeking a Senior RF Design & Field Testing Engineer to support RF design, prediction modeling, field testing, post-processing, and technical research activities for commercial wireless networks, with a primary focus on 5G NR and FCC Part 15/unlicensed wireless technologies. This role is responsible for developing RF designs, executing field validation and coexistence testing, analyzing RF performance data, and supporting site integration, deployment, and troubleshooting efforts.
Systems Engineer JobotSystems EngineerArlington, VA$100,000–$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. Their platforms help agencies improve traffic flow, road safety, and air quality, and they support large-scale, high-volume transportation networks worldwide.
Sr Energy Engineer - DC JobotSr Energy Engineer - DCWashington, DC$90,000–$155,000 / yearProject Managers work independently on complex projects, network to expand the market outreach for Existing Building Decarbonization projects, and collaborate closely with clients, contractors, and internal teams. – Lead energy modeling and building performance simulations and perform life-cycle cost analyses to evaluate the ROI and overall economic feasibility of various decarbonization strategies, including high-efficiency HVAC systems and the integration of geothermal and other renewable energy sources.
RCDD Technology Engineer JobotRCDD Technology EngineerBaltimore, MD$140,000–$190,000 / 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. This role serves as a trusted advisor to clients, leading technology consulting efforts while supporting business development, proposal preparation, project execution, and team mentorship.
Sr. Software Engineer JobotSr. Software EngineerGaithersburg, MD$140,000–$165,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. Our teams partner closely with customers to deliver innovative solutions across cloud strategy, cybersecurity, systems integration, data engineering, machine learning, AI, disaster recovery, and enterprise infrastructure initiatives.
Systems Engineer (Intelligent Transportation System Industry Exp Required) JobotSystems Engineer (Intelligent Transportation System Industry Exp Required)Alexandria, VA$100,000–$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. The ideal candidate has experience supporting Linux and Windows environments, containerized applications, and production systems while working directly with customers and internal engineering teams.
NewDigital Pathology Field Service Engineer TD SYNNEXDigital Pathology Field Service EngineerWashington, DCWe are looking for highly skilled and customer-focused Field Service Engineers to support our cutting-edge digital pathology systems in clinical environments. Connect with Your Community: Participate in internal, peer-led inclusive communities and activities, including business resource groups, local volunteering events, and more environmental and social initiatives.
NewIT - Systems Engineer II PlanIT GroupIT - Systems Engineer IIWashington, DCThe selected candidate needs to have the necessary skills to provide technical assistance at the customer's physical premises to install, move, troubleshoot, repair, modify, and assist with any issue that may arise with telecommunications and related equipment, wiring, circuits, connections, as well as supporting networking and telephone/data communication services. Responsibilities: Overseeing the day-to-day activities related to installation, verification and maintenance of telecommunications equipment, network ports, ethernet and optical Fiber cabling, IP networks.
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.
NewSr. Energy Strategy Manager, AWS Energy Team Amazon Data Services, Inc.Sr. Energy Strategy Manager, AWS Energy TeamArlington, VAWithin the overarching strategy, this individual must be resilient in exploring and discovering new supply opportunities (that delivery both near term capacity with an accelerated path to net-zero carbon supply), ultimately converting them into tactically sound and executable energy projects while working to reduce energy capital and operating expenses. Externally, this role takes ownership of managing utility interactions, coordinating efforts between real estate, engineering and planning teams in site evaluation, project engineering, scheduling and budgeting, including influencing and contracting with the utility, EPC and/or Owner’s Engineer to meet AWS’ needs.
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.
Virtualization Engineer System OneVirtualization EngineerSpringfield, VA$175,000 / yearConfigure and troubleshoot NetApp Storage – ONTAP, perform firmware and OS upgrades, and utilize storage management tools like OnCommand Unified Manager and Performance Manager. Design, implement, and support VMware vSphere, vCenters, and Microsoft Active Directory Forests with JIT administration to support multiple PKI systems.
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.
NewSecurity Systems Engineer System OneSecurity Systems EngineerVienna, VARemoteFamiliarity with SIEM technology and enterprise network principles including firewall, routing, switching, load balancing, and proxy troubleshooting. 3+ years of cybersecurity engineering experience, with understanding of enterprise security practices and PCI-DSS/NCUA compliance preferred.
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.
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.
NewAWS Solutions Architect/ Cloud Engineer System OneAWS Solutions Architect/ Cloud EngineerWashington, DC$75–$95 / hourCertifications: AWS SAA minimum (SAP preferred), AWS Security Specialty strongly preferred, HashiCorp Terraform Associate, DoD 8570/8140 IAT II. Design and implement AWS solutions focusing on GovCloud environment, including Landing Zone build with AWS Organizations, SCPs, account vending, KMS, and monitoring stack.
Lead Systems Engineer - AWS Cloud System OneLead Systems Engineer - AWS CloudReston, VA$109.05 / hourMentor junior and senior team members, install, tune, upgrade, troubleshoot, and maintain all relevant computer systems including OS administration, user management, and networking. Implement risk and opportunity management plans, assess risks, develop mitigation and disaster recovery plans, and oversee engineering project planning and execution.
NewLead, Software Engineer L3Harris TechnologiesLead, Software EngineerHerndon, VAIn addition to technical contributions, this position conducts the day‑to‑day software lead activities by providing technical guidance, assigning tasks, reviewing and approving formal documentation, and estimating labor, tools, and other resources to meet budget and schedule commitments. 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.
NewSr Cloud Security Engineer PlanIT GroupSr Cloud Security EngineerFalls Church, VAExperience: 8+ years in a technical Cybersecurity Engineering role, with at least 4 years focused on large-scale cloud or hybrid environments, and a portfolio of projects where AI or Machine Learning was directly applied to solve security or operational scaling problems. • API-First Automation: Deep expertise in building "glue code" that connects disparate COTS and custom applications via secure, automated APIs to streamline cross-functional business activities.
Site Reliability Engineer - CTJ - POLY MicrosoftSite Reliability Engineer - CTJ - POLYReston, VA$119,800–$234,700 / yearMasters Degree in Computer Science, Information Technology, or related field AND 2+ years technical experience in software engineering, network engineering, or systems administration OR Bachelors Degree in Computer Science, Information Technology, or related field AND 4+ years technical experience in software engineering, network engineering, or systems administration OR equivalent experience. Our team works across all facets of isolated system engineering and is deeply involved in defining and improving service health through SLIs/SLOs and error budgets, building automation to reduce toil, strengthening observability (logs, metrics, traces), reducing systemic latency, validating and transforming data, and optimizing throughput and capacity.
Cloud Engineer System OneCloud EngineerReston, VARemoteThis role ensures the scalability, reliability, and security of cloud environments while collaborating with cross-functional teams to deliver robust technical solutions. Ideal candidates have hands-on experience with AWS, Azure, or GCP, strong scripting skills, and a solid understanding of DevOps practices and containerization tools like Docker and Kubernetes.
NewEngineer; Cloud Systems or Architect, Cloud Systems GCP (Google Cloud Professional) (SME) PlanIT GroupEngineer; Cloud Systems or Architect, Cloud Systems GCP (Google Cloud Professional) (SME)Reston, VAClient CIO Architecture, Strategy & Innovation (CASI) is responsible to assist Vice President of Information Technology (IT) design, develop, maintain, support, and translate corporate business vision and strategy along with stakeholder input into objectives for building, enhancing, or replacing business and IT systems capabilities, together with an implementation of a comprehensive IT roadmap, all-the-while maintaining resilience to change as a key architectural and strategy objective for the enterprise. • Tasks – might include (neither exhaustive nor restrictive): o Advises and assists IT functional groups to define and implement solutions aligned with a Cloud based Microservices / Service Oriented Architecture (SOA) for infrastructure or business applications.
NewSenior Aria/VCF Foundations Engineer System OneSenior Aria/VCF Foundations Engineer99999, MarylandRequired Qualifications 5+ years of experience supporting and administering large-scale VMware Aria Operations environments, including extra-large nodes in active - warm cluster configurations deployed in multiple datacenters. Working knowledge of Linux (RHEL preferred), including basic commands-line operations, light troubleshooting, log analysis, light performance analysis, service management, package installations, and scripting.
AWS Cloud Infrastructure Engineer System OneAWS Cloud Infrastructure EngineerMcLean, VAThe ideal candidate will have strong hands-on experience with AWS infrastructure, Terraform/IaC, CI/CD pipelines, scripting, secure cloud operations, monitoring/logging, and compliance-aligned engineering practices . Working knowledge of cybersecurity best practices, secure cloud configurations, zero-trust concepts, and compliance frameworks such as NIST, CIS, or ISO 27000.
Senior VMware & Data Center Engineer System OneSenior VMware & Data Center EngineerWashington, DCDemonstrated experience ensuring the reliability, scalability, and efficiency of data center operations, including servers, storage, networking, power, and environmental resource requirements. Use enterprise data center technologies to manage and operate servers, storage, networking, and power systems supporting mission-critical environments within the federal government.
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).
NewSenior Associate, Privileged Access Management Delivery Engineer KPMGSenior Associate, Privileged Access Management Delivery EngineerWashington, DC$95,855–$208,265 / yearImplement and maintain PAM capabilities including privileged credential management, session management, just-in-time access, and endpoint management (EPM)components; implement automated integration across adjacent security solutions (for example: Crowdstrike, SIEM solutions, ServiceNow); automate PAM tasks using scripting and APIs (such as PowerShell, Python, REST, and others) and integrate with enterprise platforms (that is, Active Directory, IdPs, ITSM platforms, SIEM platforms, and more). Hands on experience with Privileged Access Management delivery and engineering, with specific experience using CyberArk On-Prem and SaaS solutions; additional experience with secrets management platforms (that is, Conjur, HashiCorp) and other PAM platforms (such as Delinea, BeyondTrust) preferred.
Senior Platform Engineer System OneSenior Platform EngineerWashington, DCWe're seeking a talented Platform Engineer to help architect, deploy, and manage our AWS and on-premises platforms while supporting emerging AI capabilities, modern containerized workloads, and enterprise virtualization environments. • Manage Kubernetes fleet operations across AWS EKS, on-premises Mirantis Kubernetes Engine (MKE), and VMware vSphere with Kubernetes (VKS).
Sr. Site Reliability Engineer - AWS Geospatial Technology EsriSr. Site Reliability Engineer - AWS Geospatial TechnologyVienna, VA$84,240–$142,480 / 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. We care about your career growth and strive to assign projects based on what will help each team member develop into a better-rounded engineer and enable them to take on more complex tasks in the future.
Staff AI Engineer Grafana LabsStaff AI EngineerWashington DC, DCRemote$174,986–$209,983 / yearYou’ll define the technical direction for the automation platform (data models, API contracts, shared libraries, reference architectures) and partner with Data Engineering, GTM Systems, and Field Operations to build scalable, self-service automation that eliminates manual work and drives operational efficiency. 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.
Software Engineer II - CTJ - POLY MicrosoftSoftware Engineer II - CTJ - POLYReston, VA$100,600–$199,000 / yearMasters Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelors Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python. We own and operate Microsoft 365 services including Office 365, Exchange, Outlook, Teams, SharePoint, OneDrive, Purview, Information Protection, PSTN, Office Online, Office Services, and are actively bringing CoPilot to sovereign environments.
Site Reliability Engineer (SRE) System OneSite Reliability Engineer (SRE)McLean, VARemoteIn this role, you will work closely with engineering, DevOps, cloud, security, and product teams to improve system resilience, reduce downtime, strengthen deployment practices, and support reliable cloud-based application delivery in an Agile environment. This role will help establish and mature SRE practices across AWS cloud environments, with a focus on reliability, automation, scalability, observability, incident response, and operational excellence.
Data 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).
Cyber Security Engineer III System OneCyber Security Engineer IIISpringfield, VA$135,000 / hourThe ideal candidate will have hands on experience in incident response, CSOC or SOC operations, digital forensics, malware analysis, indicator development, and cyber incident reporting within a DoD, Intelligence Community, or federal cyber environment. • Experience supporting cyber incident response, CIRT, CSOC, SOC, DFIR, threat hunting, or defensive cyber operations.
Senior Kinetics DE/CD Engineer LeidosSenior Kinetics DE/CD EngineerArlington, VA$131,300–$237,350Leidos’ Defense Systems Kinetics Business Area is seeking a Senior Digital Engineering and Computational Dynamics Engineer to join our team as part of the Strategic High-speed Advanced Development Organization. If 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 .
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).
Endpoint Engineer LeidosEndpoint EngineerBowie, MD$87,100–$157,450Ensure proper OS images are deployed to all endpoint devises, test and manage software updates, ensure appropriate and enforce security policies (EDR/AV), and automate workflows to ensure stable, compliant, and efficient computing environments for endpoint migrations. The Defense Enclave Services contract will unify the DoD Fourth Estate Defense Agencies and Field Activities’ (DAFAs) common use information technology systems, personnel, functions, and program elements under the direction of DISA’s Fourth Estate Network Optimization program office.
Lead Security Engineer with TS/SCI Poly LeidosLead Security Engineer with TS/SCI PolyAnnapolis Junction, MD$154,050–$278,475The selected individual will lead all security engineering efforts for a large, complex network environment with geographically distributed systems; and will manage a team of Information Systems Security Officers (ISSOs) and Information Systems Security Engineers (ISSEs), providing technical leadership and direction to meet program requirements. At least twelve years of experience with defense-in-depth principals/technology (including access control, authorization, identification and authentication, public key infrastructure, network and enterprise security architecture) and applying risk assessment methodology to system development.