Systems Engineer Nightwing Intelligence SolutionsSystems EngineerSterling, Virginia$99,000–$206,000 / yearThe Systems Engineer must maintain a strong awareness of technical trends in information technology, develop and maintain a strong awareness of on-going IT projects, and business unit requirements; be able to apply the Sponsor’s project management model for development efforts; and provide analysis, design, development, deployment, and lifecycle support for innovative hardware/software/ network systems and applications. Work involves developing and supporting end-to-end technical projects; ensure systems being developed comply with the enterprise technical architecture; help project and program teams prepare for project control gates; and keep senior management apprised of project or program status.
Structural Engineer Bechtel CorpStructural EngineerReston, VAExtraordinary teams building inspiring projects: Since 1898, we have helped customers complete more than 25,000 projects in 160 countries on all seven continents that have created jobs, grown economies, improved the resiliency of the world''s infrastructure, increased access to energy, resources, and vital services, and made the world a safer, cleaner place. Major Responsibilities: Perform and/or lead the structural analysis and design of reinforced concrete, prestressed concrete, and structural steel systems for underground caverns and powerhouse structures, intake/outlet structures, shafts, tunnels, and waterways, dams, retaining walls, and hydraulic structures and balance of plant and auxiliary facilities.
Civil Engineer (Mid-Senior Level) Glen Allen, VA Tetra Tech IncCivil Engineer (Mid-Senior Level) Glen Allen, VAGlen Allen, VA$115,000–$140,000 / yearPay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience and demonstrated work experience in the above role; skills, certifications, and competencies that align to the specified role; geographic location; and education, as well as contract provisions regarding labor categories that are specific to the position. With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.
NewSME Systems Engineer Bridge Core (BCore)SME Systems EngineerHerndon, Virginia$190,000–$220,000 / yearFull timeBcore accelerates decisive advantage for warfighters and intelligence professionals by fusing human insight, rapid-fire engineering, precision-measured outcomes, and relentless grit into mission-ready solutions. Whether it’s architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because of the expertise, collaboration, and agility of our teams.
Senior Ai/Ml Engineer Node.DigitalSenior Ai/Ml EngineerHerndon, VAYou will focus on building generative AI applications with embedded artifcial intelligence or machine learning in support of continuous improvement, learning and augmented decision-making. Experience with front-end frameworks (React, Angular, Vue.js) and modern web development UiPath RPA Developer Certifcation and UiPath AI Center Experience.
TIC Systems Engineer EntarianTIC Systems EngineerArlington, VirginiaOverview/ Job Responsibilities: We are seeking an experienced Trusted Internet Connections (TIC) System Engineer to design, implement, and maintain secure network perimeter defenses for our customer’s network infrastructure. Configure, and manage F5 load balancing solutions, including Local Traffic Manager (LTM) and Global Traffic Manager (GTM), to support enterprise network, multi-cloud, and mobility solutions.
Software Engineer (Full Stack) - SME GrvtySoftware Engineer (Full Stack) - SMESpringfield, VirginiaYou will work closely with data scientists, computer vision engineers, ETL engineers, and intelligence analysts to integrate machine learning capabilities into production systems, enabling scalable model deployment, monitoring, and continuous improvement. You will architect, develop, and maintain a Python-based data warehouse processing system that serves as the backend for a user-facing application, while also leading development of modern GUI applications using REST APIs and contemporary web frameworks.
Senior AI/ML Engineer Node.DigitalSenior AI/ML EngineerHerndon, VAYou will focus on building generative AI applications with embedded artifcial intelligence or machine learning in support of continuous improvement, learning and augmented decision-making. Experience with front-end frameworks (React, Angular, Vue.js) and modern web development UiPath RPA Developer Certifcation and UiPath AI Center Experience.
Data Engineer BLN24Data EngineerMcLean, VAFull timeThis role focuses on supporting data pipelines, validation frameworks, and user-facing tools that enable stakeholders to assess, validate, and act on data quality issues. Our service and solutions delivery start with understanding each client’s end-state, and then seamlessly integrating within each Agency’s organization to improve and enhance strategic and technical operations and deployments.
Full Stack Software Engineer NSSFull Stack Software EngineerHerndon, VirginiaExpert understanding of microservices architecture and cloud implementations, using Amazon Web Services, 3+ years of experience setting up and working with Amazon Web Services (AWS) environments, especially AWS Lambda and other serverless technologies. Utilize programming languages like Java, Python, SQL, Node, Go, and Scala, Spring boot, Open-Source RDBMS and NoSQL databases, Container Orchestration services including Docker and Kubernetes, and a variety of AWS tools and services.
Engineer Technician Senior - Permits DHRMEngineer Technician Senior - PermitsShenandoah, VirginiaEffective February 7, 2022, new Federal Motor Carrier Safety Administration (FMCSA) regulations require entry-level drivers (drivers who are seeking to take the skills test in order to obtain a CDL for the first time, upgrade their CDL to a Class A from a Class B, or take the knowledge test to obtain a hazardous materials endorsement for the first time) to complete FMCSA- approved Entry-Level Driving (ELD) Training before the Department of Motor Vehicles can grant the requested CDL or endorsement. In addition to a rewarding work experience, VDOT offers excellent health and life insurance benefits, pre-tax spending accounts, state funded Short and Long Term Disability, paid holidays, vacation, tuition assistance, free wellness programs, and a state retirement plan with options for tax-deferred retirement savings including employer matching.
Senior Software Engineer CoStar GroupSenior Software EngineerRichmond, VirginiaCoStar is investing heavily in artificial intelligence to accelerate software delivery, improve platform observability, automate research and business workflows, enhance product experiences through intelligent agents and skills, and improve data quality across enterprise systems. Included in the S&P 500 Index, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives.
Lead Software Engineer-AI Foundation Services JPMorgan Chase & CoLead Software Engineer-AI Foundation ServicesMcLean, VAAs a Lead Software Engineer at JPMorganChase within the AIML Data Platforms - Chief Data and Analytics team, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. Creates and maintains reusable engineering assets such as reference implementations, runbooks, test harnesses, baseline configurations, and onboarding guides to accelerate adoption across teams.
Software Engineer with Active Secret Security Clearance - Onsite in Portsmouth, VA Booker DiMaio, LLCSoftware Engineer with Active Secret Security Clearance - Onsite in Portsmouth, VAPortsmouth, VAFull timeThis role involves building and enhancing custom software solutions, analytics tools, and system integrations that support maintenance operations, performance tracking, and IT system management. Develop and implement data integration solutions across multiple systems, including Navy IT systems.
Senior DevOps Engineer SAP SESenior DevOps EngineerReston, VAOriginally known for leadership in enterprise resource planning (ERP) software, SAP has evolved to become a market leader in end-to-end business application software and related services for database, analytics, intelligent technologies, and experience management. What you`ll do: At SAP Sovereign Cloud Technology & Delivery, we are defining the future of deploying and operating SAP cloud solutions on sovereign cloud infrastructure for public sector and highly regulated industries - with unparalleled security, compliance, and scale.
Software Engineer Bridge Core (BCore)Software EngineerHerndon, Virginia$120,000–$140,000 / yearFull timeBcore accelerates decisive advantage for warfighters and intelligence professionals by fusing human insight, rapid-fire engineering, precision-measured outcomes, and relentless grit into mission-ready solutions. The ideal candidate will be responsible for developing and automating our customer’s in support of this customer’s mission, ensuring the smooth operation of all systems within the virtual environment (Nutanix, VMs,) to optimize performance, scalability and automation.
Facilities Electrical Engineer Science Applications International CorpFacilities Electrical EngineerChantilly, VAThis role involves providing technical engineering insight, leading complex design and construction projects, and ensuring the reliability of existing electrical and control systems. You will be collaborating with a range of stakeholders, including the Government customer, project and construction managers, contractors, utilities, and other personnel, to ensure success across various electrical projects and challenges.
Cloud Pipeline Data Engineer CACICloud Pipeline Data EngineerSpringfield, VirginiaPay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. You will support cloud-based data intake and storage, data ingestion automation, and ensuring the reliability of processes responsible for data loading and data transformation.
Cybersecurity Implementation Engineer CACICybersecurity Implementation EngineerSpringfield, VirginiaA deep expertise in one of the following areas and working knowledge of one or more of the other following: Network Detection and Response (NDR), Endpoint Detection and Response (EDR), Next-Generation Firewalls (NGFWs), Intrusion Detection/Prevention Systems (IDS/IPS), F5 platforms, email/web security gateways. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
Entry-level Civil or Environmental Engineer SCS EngineersEntry-level Civil or Environmental EngineerMidlothian, Virginia$70,000–$75,000 / yearFull timeAs an entry-level engineer, you will provide engineering/design support to the Mid-Atlantic team within our existing solid waste practice which is focused on providing engineering and environmental services to private and municipal clients in the landfill, landfill gas, air permitting, and solid waste management industries. Potential projects include landfill and other solid waste facility permitting and design (all phases, including construction plans, specifications and construction documents), engineering analysis, feasibility studies, report writing, as well as construction oversight.
Systems Engineer III Scientific Research CorporationSystems Engineer IIIDahlgren, VirginiaFull timeAssisting in engineering analysis and developing hardware solution Rough Order of Magnitudes (ROMs), Build Order Materials (BOMs), Engineering Changes (ECs), Technical Data Packages (TDPs), and supporting documentation for new capabilities. The team provides solutions to enable customers to respond rapidly to emerging threats with systems that are scalable to platform, re-configurable to mission, modular (plug and play), and dynamically re-programmable to support new threats.
Civil Engineer IntelliPro Group Inc.Civil EngineerChesapeake, VA$60–$65 / hourThe ideal candidate is a self-driven civil engineer with strong technical expertise, excellent problem-solving abilities, and experience managing engineering reviews, permitting, and construction oversight. This role will lead engineering efforts across multiple concurrent projects, from early design review through final construction, while ensuring regulatory compliance, permitting, and engineering quality.
NewCivil Engineer Land Development Kimley-Horn and Associates IncCivil Engineer Land DevelopmentReston, VAIn addition to strong technical experience, other responsibilities will include research, coordination, project management, staff management, cost estimating, permitting for land disturbance and preparation of bid packages as well as technical specifications. Candidates should have experience with site civil design, permitting, and applicable software applications including hydrology modeling program, storm drainage programs, AutoCAD, and Civil 3D.
ETL Engineer VTGETL EngineerChantilly, VirginiaFull timeThe ideal candidate will be responsible for designing, building, and maintaining data pipelines and integration processes that enable reliable, timely, and high-quality data delivery across the organization. This role requires strong technical capabilities, a deep understanding of data architecture, and the ability to collaborate effectively with cross-functional stakeholders.
NewSenior Software Engineer - Architecture & Systems Design CACISenior Software Engineer - Architecture & Systems DesignHerndon, VirginiaPay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Create technical documentation including message sequence charts, UML class diagrams, and software architecture specifications that enable distributed teams to build complex systems correctly and efficiently.
Civil Engineer Transportation/Traffic Kimley-Horn and Associates IncCivil Engineer Transportation/TrafficRichmond, VAPerform traffic engineering and project management tasks to deliver a wide variety of transportation planning, transit, traffic engineering, safety, and intelligent transportation systems (ITS) projects for many, diverse clients. Manage their projects profitably, engage in hands-on practice and delivery of projects, transition work to qualified staff, and act as a positive leader and mentor.
Civil Engineer (Land Development) Netpace, Inc.Civil Engineer (Land Development)Annandale, VAOur Client provides full-service civil engineering, transportation engineering, land planning, landscape architecture, and surveying services to private and public sector clients throughout the Washington D.C. metropolitan area. Our Customer is currently seeking Civil Engineers with 2-4 years of experience in the design of land development engineering projects.
Instrumentation & Controls Engineer PEAK Technical Services Inc.Instrumentation & Controls EngineerManassas, VA$46.97–$71.06 / hourTo read our Candidate Privacy Information Statement, which explains how we will use your information, please navigate to https://peaktechnical.com/privacy-policy/ and https://peaktechnical.com/ca-residents-privacy-rights/ . We are seeking an experienced engineer to support the design, development, and implementation of advanced control systems for complex manufacturing and process facilities.
Electrical Engineer PE PEAK Technical Services Inc.Electrical Engineer PERichmond, VA$140,000–$150,000 / yearSeeking a highly motivated Professional Electrical Engineer (PE) with extensive experience in the design, implementation, and commissioning of power distribution systems, low voltage systems, fire alarms, door interlocks, and Building Management Systems (Client) in cleanroom environments. Project Execution & Support Collaborate with cross-functional teams including mechanical, process, and controls engineers to deliver coordinated design solutions.
NewSenior Microgrid Controls Engineer Eaton CorporationSenior Microgrid Controls EngineerSandston, VA$86,000–$126,000 / yearWhat you'll do: As part of our Microgrid Controls Team, you will design, develop, test, implement and commission Microgrid Control solutions consisting of Solar Photovoltaic (PV), Battery Energy Storage Systems (BESS), Diesel/Natural Gas and Generators for our customers, using Automation Controllers, HMI's, Multi-function Protection Relays, and Data Concentrators from all major OEM's. After making a conditional offer and running a background check, if Eaton is concerned about conviction that is directly related to the job, you will be given the chance to explain the circumstances surrounding the conviction, provide mitigating evidence, or challenge the accuracy of the background report.
Civil Project Engineer II/III Timmons Group IncCivil Project Engineer II/IIIStaunton, VA$82,000–$90,000 / yearWith 21 offices throughout the Mid-Atlantic and Southeast, we provide civil engineering, environmental, economic development, GIS/geospatial technology, landscape architecture, and surveying services to a diverse client base. As one of Engineering News Record's (ENR) Top 500 Design Firms for over 30 years, we are dedicated to being an employer of choice and providing our people with the best resources, technology, and culture to help them thrive in an engaging career development setting.
Civil Project Engineer II/III - Renewable Energy Structural Design Timmons Group IncCivil Project Engineer II/III - Renewable Energy Structural DesignRichmond, VA$82,000–$90,000 / yearAs one of Engineering News Record's (ENR) Top 500 Design Firms for over 30 years, we are dedicated to being an employer of choice and providing our people with the best resources, technology, and culture to help them thrive in an engaging career development setting. With 21 offices throughout the Mid-Atlantic and Southeast, we provide civil engineering, environmental, economic development, GIS/geospatial technology, landscape architecture, and surveying services to a diverse client base.
Project Engineer I Water & Wastewater Aqua America, Inc.Project Engineer I Water & WastewaterRichmond, VA$85,454.10–$98,272.21 / yearAqua, an Essential Utilities company, employs people in a variety of roles within our eight-state footprint, ranging from field workers and customer service representatives who are on the front lines working with customers, to scientists and engineers who help ensure we're delivering reliable water and wastewater services to our communities. Coordinates design and construction phases of projects with personnel of all regional divisions and of other departments, outside contractors, and suppliers to ensure all operational needs are addressed, and obtain all needed inputs for design.
Civil Project Engineer II/III - Land Development Timmons Group IncCivil Project Engineer II/III - Land DevelopmentCharlottesville, VA$82,000–$115,000 / yearWith 21 offices throughout the Mid-Atlantic and Southeast, we provide civil engineering, environmental, economic development, GIS/geospatial technology, landscape architecture, and surveying services to a diverse client base. As one of Engineering News Record's (ENR) Top 500 Design Firms for over 30 years, we are dedicated to being an employer of choice and providing our people with the best resources, technology, and culture to help them thrive in an engaging career development setting.
Entry-level Civil or Geotechnical Engineer SCS EngineersEntry-level Civil or Geotechnical EngineerVirginia Beach, Virginia$70,000–$75,000 / yearFull timePotential projects include landfill and solid waste facility permitting and design (all phases including construction plans, specifications, and construction documents), engineering analysis, feasibility studies, report writing, and construction oversight. How you can make an impact: As an entry-level engineer, you will contribute to a variety of technical, regulatory, geotechnical, and engineering tasks, including: Prepare engineering calculations in support of reports and design and permit documents.
Operations & Maintenance Cloud Engineer Leidos Holdings IncOperations & Maintenance Cloud EngineerAshburn, VA$87,100–$157,450 / yearAt the direction of the O&M team leader, develop and implement technical efforts to maintain AWS applications, including supporting after-hours and weekend calls to remediate production issues. PSPD supports the Department of Homeland Security (DHS) and CBP critical missions, specifically screening and processing travelers at the ports of entry (POEs) into the United States.
Cloud Information Systems Security Engineer (ISSE) Science Applications International CorpCloud Information Systems Security Engineer (ISSE)Chantilly, VA4+ years of demonstrated experience in one or more of the following activities: IaaS, PaaS, and SaaS services (e.g., compute, storage, network, security, administration, automation, application services, and databases) in either native cloud or hybrid cloud environments. Providing cloud strategy services that cover all security fabrics and are available to the Government to assist with the relocation of an organization's business applications, data, and workloads to ensure maximum effectiveness of the multi-cloud environment.
Lead Software Engineer - Big Data Financial Industry Regulatory Authority, Inc.Lead Software Engineer - Big DataTysons Corner, VAFINRA employees are required to disclose to FINRA all brokerage accounts that they maintain, and those in which they control trading or have a financial interest (including any trust account of which they are a trustee or beneficiary and all accounts of a spouse, domestic partner or minor child who lives with the employee) and to authorize their broker-dealers to provide FINRA with duplicate statements for all of those accounts. Additional insurance includes basic life, accidental death and dismemberment, supplemental life, spouse/domestic partner and dependent life, and spouse/domestic partner and dependent accidental death and dismemberment, short- and long-term disability, long-term care, business travel accident, disability and legal.
Dev(Sec)Ops Developer/Engineer CSIDev(Sec)Ops Developer/EngineerReston, VirginiaCloud: Amazon Web Services (e.g., Commercial and Government Cloud Services for DoD and IC, EMR w/Spark and RDS, EC2, EBS, S3, Route 53, RDS, VPC, ELB, CloudWatch, CloudFormation, CloudTrail, Blue Green deployment, Auto scaling, Trusted Advisor, Identity & Access Management, Simple Notation Service, Billing Console), Microsoft Azure. Certifications: We prefer one or more of the following certifications: AWS Cloud certifications (e.g., AWS Certified Cloud Practitioner, AWS Certified SysOps Administrator, AWS Certified DevOps Engineer, AWS Certified Big Data, AWS Solutions Architect); Microsoft Azure certifications; Professional Cloud Solutions Architect.
Senior DevOps Engineer CACISenior DevOps EngineerChantilly, Virginia7+ years’ background in Computer Science, Information Technology, Cyber Security, Cyber Forensics, Engineering, or other related discipline, or equivalent combination of education, technical certifications, training and work/military experience. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
26-6069: Sr System Engineer - Falls Church, VA - Secret Navitas Business Consulting26-6069: Sr System Engineer - Falls Church, VA - SecretFalls Church, VAFull timeThe Systems Engineer will be responsible for maintaining system stability, supporting infrastructure and application environments, coordinating software deployments, resolving production issues, and implementing system enhancements across Pre-Production and Production environments. With proven solutions, award-winning technologies, and a team of expert problem solvers, Navitas has consistently empowered customers to use technology as a competitive advantage and deliver cutting-edge transformative solutions.
NewSenior Infrastructure Engineer TOMORROW HIRESenior Infrastructure EngineerRichmond, VA$58–$78 / hourThis role requires extensive hands-on experience with Windows Server across on-premises and cloud environments, along with expertise in security, patching, automation, migrations, disaster recovery, networking, and enterprise production application support. The position also requires strong networking expertise, including a thorough understanding of OSI model layers and network protocols, to diagnose complex connectivity, infrastructure, middleware, and application issues.
Senior Engineer, Cloud And System Security SESSenior Engineer, Cloud And System SecurityMclean, VADesign, implement and automate advanced cloud, system and application security controls leveraging best of breed and cloud native state of the art security technologies, including EDR, O365 Security, data leakage prevention and rights management, identification and access management, active directory security, secure software development. You will autonomously lead and deliver complex cyber security implementation projects and design, implement and automate advanced cloud, system and application security controls leveraging best of breed and cloud native state of the art security technologies.
Software Engineer IV (Technical Lead) - HYBRID Preferred (Raleigh or Jersey City) OR REMOTE Arch Capital Group LtdSoftware Engineer IV (Technical Lead) - HYBRID Preferred (Raleigh or Jersey City) OR REMOTEVARemote$115,000–$180,000 / yearWorks with the Agile Program Manager (APM), Digital Product Manager (DPM), and Business Systems Analyst (BSA) to accurately capture stakeholder requests and system specifications and translate them into engineering artifacts, including design specifications, source code, test scripts, and test results. The incumbent performs analysis, design, coding, debugging, testing, production support, and automation activities while also mentoring team members, driving engineering best practices, and influencing technical direction.
Senior SAR Signal and Image Processing Engineer The Aerospace CorpSenior SAR Signal and Image Processing EngineerChantilly, VA$166,400–$249,600 / yearWe specialize in SAR image formation processing, SAR system performance modeling and analysis, moving target indications (MTI) and tracking, maritime surveillance techniques, electronic protection applications, complex data processor development, and advanced processing algorithms. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers.
AR/VR/XR Visualization Research and Development Engineer Pennsylvania State UniversityAR/VR/XR Visualization Research and Development EngineerReston, VA$127,080–$240,960 / yearNotice regarding employment at the Applied Research Laboratory (ARL): Employees must be eligible to obtain a government security clearance, participate in the ARL drug testing program, and comply with electronic and physical monitoring requirements applicable to federal contractors. If filled as Research and Development Engineer - Software (ARL) - Intermediate Professional, this position requires: Bachelor''s Degree - Engineering or Science 2+ years of relevant experience Required Certifications: None.
Software Engineer CACISoftware EngineerSterling, VirginiaPay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Responsible for designing, developing, operating and maintaining software to be applied to and integrated with solutions or products that also encompass non-information technology related engineering or scientific disciplines.
Machine Learning Engineer CACIMachine Learning EngineerChantilly, VirginiaKnowledge of LLM technologies including exposure to Large Language Models, orchestration frameworks (LangChain, LangGraph), • Understanding of RAG architectures and vector databases (ChromaDB, Pinecone, Weaviate, or similar) for building intelligent retrieval systems. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
Senior Front-End Software Development Engineer Vantor ServicesSenior Front-End Software Development EngineerHerndon, Virginia$182,000–$200,200 / yearVantor is a place for problem solvers, changemakers, and go-getters—where people are working together to help our customers see the world differently, and in doing so, be seen differently. This role requires close collaboration with product owners, UX designers, back-end engineers, data engineers, and cybersecurity personnel within an Agile development environment.
Senior RHEL STIG Engineer CACISenior RHEL STIG EngineerChantilly, VirginiaThe role requires expert knowledge of configuring systems in accordance with DISA Secure Technical Implementation Guides (STIG) and validating STIG compliance at the enterprise level to build, deploy, maintain, and support operations utilizing tools such as SteelCloud ConfigOS for a global deployment of ~50,000 Endpoints. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.