2,839 Results for

Systems Integration Jobs in Vienna, VA

Jobs

New!

Manassas, VA5 days ago

$95,000–$115,000 Per Year

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. Integrating and testing software deliveries, verifying bug fixes, and performing regression testing across multiple hardware and operating system configurations.

New!

Rockville, MD5 days ago

$110,000–$165,000 Per Year

With 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.

New!

Manassas, VA5 days ago

$95,000–$115,000 Per Year

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. We are seeking a proactive Junior Systems/Software Integration Engineer to assist with the deployment, configuration, and validation of complex software solutions across multiple computing environments.

New!

Fairfax, VA5 days ago

Remote

$100,000–$165,000 Per Year

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. We are seeking a highly skilled System Integration & Test Engineer to support a large-scale FAA Air Traffic Control modernization initiative focused on next-generation aviation and mission-critical systems.

New!

Washington, DC5 days ago

$90,000–$130,000 Per Year

This role focuses on programming, configuring, and commissioning DDC systems while working closely with engineers, project managers, and field teams to ensure systems perform as designed from startup through turnover. 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.

New!

Manassas, VAToday

$120,000–$150,000 Per Year

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. Our team specializes in securing critical systems through authorization management, risk mitigation strategies, vulnerability assessment processes, and cybersecurity engineering practices designed to support evolving compliance and operational requirements.

New!

Manassas, VA5 days ago

$80,000–$100,000 Per Year

New!

Arlington, VA5 days ago

$150,000–$200,000 Per Year

Laurel, MD22 days ago

$100,000–$245,000

The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.

New!

Merrifield, VA3 days ago

The ideal candidate will work across Finance, Procurement, HR, and Technology teams to strengthen security controls, support audits and ICFR compliance, improve processes, conduct testing (SIT/UAT), and drive operational improvements using automation and AI tools like Microsoft Copilot. The role supports the Oracle ERP Fusion ecosystem and Oracle Risk Management Cloud (RMC) by managing user access, privileged access, risk alerts, incidents, audit readiness, and compliance activities.

Reston, VA29 days ago

Full-time
Employee

By 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.

New!

Manassas, VA2 days ago

$130,000–$160,000 Per Year

This position is ideal for someone who enjoys owning technical designs from concept through execution while working alongside programmers, field engineers, project managers, and commissioning teams on complex, high-visibility projects. This role will support the design and delivery of highly reliable PLC-based control systems for large-scale facilities including data centers, central utility plants, critical HVAC infrastructure, and industrial process environments.

Fort Belvoir, VA13 days ago

Applies knowledge of the Systems Engineering Management Process and implementation, as applied to the Department of Army/DOW acquisition process throughout all life cycle phases; knowledge of DOW policies on Systems Engineering, Integrated Product and Process Development (IPPD) and IPT Management; and ability to coordinate and negotiate design and engineering activities with other related programs and organizations. In this role, you will assist with systems engineering activities including requirements analyses, functional analyses, design solutions formulation, systems analysis and control, and generation and maintenance of systems architecture products.

New!

Washington, DC6 days ago

The 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.

New!

Washington, DC5 days ago

$135,000–$185,000 Per Year

A nationally recognized law firm is seeking a Manager or Senior Manager, Paralegal Services & Resource Management to lead and elevate its paralegal support function with a strong focus on client service, team development, and operational efficiency. The Manager will play a critical leadership role in mentoring professionals, developing career pathways, and enhancing team performance, while also driving innovation through improved systems, technology, and cross-functional collaboration.

New!

Reston, VA2 days ago

$96.21–$99 Per Hour

Mentor 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.

Chantilly, VA17 days ago

Full-time

With the experience of hundreds of thousands of successful implementations, including macro, DAS, Small Cells, and Wi-Fi, the world’s leading network operators and OEMs trust our knowledge and experience to plan, perform, troubleshoot, and implement an array of technologies and solutions. TeleWorld Solutions (TWS), a Samsung company , is a premier telecommunications and technology services firm offering end-to-end engineering, deployment, consulting, and staffing solutions to wireless operators, OEMs, system integrators, and hyperscale customers across North America.

New!

Washington, DC5 days ago

$90,000–$120,000 Per Year

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. Our practical approach addresses our clients' complex energy needs, maximizing savings and return on investment while minimizing environmental impact across all served markets.

New!

Washington, DC5 days ago

$90,000–$120,000 Per Year

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. Our practical approach addresses our clients' complex energy needs, maximizing savings and return on investment while minimizing environmental impact across all served markets.

Arlington, VA25 days ago

$175,000–$190,000 Per Year

Integrated Data Services (IDS) is seeking a Senior Program Manager to lead the deployment and adoption of the Comprehensive Cost and Requirements (CCaR) System across the Department of the Army to include the Army Secretariat, Army Staff, Major Commands, and Subordinate Commands. This operates at the intersection of financial management, enterprise software, and senior leader decision-making, directly enabling Army leadership to transition from static, manual processes to real-time, data-driven decision advantage.

New!

Fairfax, VA5 days ago

$40–$50 Per Hour

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. About the Role: We are seeking a skilled and motivated Building Automation Service Technician to support service, maintenance, troubleshooting, and commissioning of building automation systems across commercial and mission-critical facilities in Northern Virginia.

Arlington, VA25 days ago

$175,000–$190,000 Per Year

This role is responsible for owning the customer relationship, driving enterprise adoption, and expanding the impact of the Project Management Resource Tools (PMRT) System and the Comprehensive Cost and Requirement (CCaR) System across Portfolio Acquisition Executive (PAE) organizations and Headquarters Air Force (HAF) stakeholders. When determining an applicant’s compensation, various factors are taken into consideration including, but not limited to: geographic location, relevant prior work experience, relevant training, special skills/competencies, education, clearance, licenses/certifications, labor categories/contract rates and other business needs.

New!

La Plata, MD3 days ago

$190,000–$190,000 Per Year

System One IT is seeking a Capture Manager to lead and support high-performing capture teams, responsible for securing existing and winning new business opportunities supporting U.S. Naval Aviation and Naval Air Systems Command (NAVAIR), including Naval Air Warfare Center Aircraft Division (NAWCAD) Patuxent River, PMA offices, Fleet Readiness Centers (FRCs), and other naval aviation commands and activities in the southern Maryland and Dahlgren, Virginia regions. The Capture Manager is responsible for developing and supporting the execution of the business operation's overall capture strategy associated with approved pursuit efforts to increase the win probability of new and existing projects.

Chantilly, Virginia30+ days ago

$40–$50 Per Hour
Contractor

Project Management: Plan and manage electrical engineering projects, including creating project timelines, allocating resources, and coordinating with cross-functional teams. Collaboration: Collaborate with other engineers, technicians, and professionals to integrate electrical systems into larger projects or products.

New!

Washington, DC5 days ago

$150,000–$190,000 Per Year

We partner with top cloud platforms like Snowflake, AWS, Azure, GCP, Databricks, Fivetran, Pinecone, Glean, and dbt to deliver innovative data, cloud, and machine learning solutions that help enterprises unlock the true power of their data. 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.

New!

Washington DC, DC3 days ago

Full-time
Employee

Web Development Skills: Proficiency in PHP, MySQL, HTML, CSS, and JavaScript; working knowledge of additional languages and frameworks (.NET, Python, Ruby, Swift, SQL Server). Modern API Frameworks: Strong experience building scalable APIs using Node.js, FastAPI (Python), Bun, or similar modern backend technologies.

New!

Rockville, MD4 days ago

Full-time

Employ solution selling techniques to identify business and develop customized IT solutions and technical products to solve client business requirements in enterprise level accounts. To be successful in this role, you must be willing to engage new customers by cold calling, attending vendor or networking events and cultivate strong relationships with our technology partners.

Washington, DC10 days ago

Full-time
Employee

These systems consist primarily of computer networks and system integration laboratories (SILs), but may also include hardware-in-the-loop (HITL) facilities that integrate digital and analog processors, cockpit displays and controls, aircraft, weapons, environmental and threat models, databases, and operational flight program software related to interactive man-in-the-loop battlespace environments. Provides technical expertise in the area of software development, integration of models, armament, sensor and electronic warfare systems for a complex integrated battlespace modeling and simulation environments consisting of digital & analog processors, cockpit displays & controls, mechanical & electrical interfaces, and operational flight program software.

New!

Ashburn, VA1 day ago

$102,125–$118,000

The Project Manager leads all phases of Electronic Security integration projects—from construction planning and initiation to execution, monitoring, and closure—and is accountable for their success. More than 13,000 colleagues in 40 countries are focused daily on our purpose to help make your world a safer place and our commitment to deliver an unparalleled client experience.

Laurel, MD22 days ago

$125,000–$290,000

This individual will be instrumental in strengthening the Branch’s technical excellence, advancing strategic core competencies, and mentoring high-performing staff to develop and deliver innovative, mission-relevant capabilities aligned with AMDS strategic intent. The successful candidate will be a highly respected member of the DOW community with demonstrated technical depth, systems engineering rigor, and the ability to lead complex, high-impact engineering efforts.

Tysons, VA10 days ago

$175,000–$200,000

Hands-on experience with ServiceNow components, such as Predictive Intelligence, Change Management, Service Catalog, Incident Management, Problem Management, Release Management, CMDB, CSM, Knowledge Management, Self-Service Portal, etc. This position supports technical solution and development / implementation of solutions that leverage the OOTB ServiceNow modules and Custom App to migrate legacy applications to the DLA Enterprise ServiceNow platform.

New!

Washington DC, DC2 days ago

The role ensures high availability, integration with IT and network infrastructure, and operational excellence of AV technologies that support mission-critical transit operations. The AV Infrastructure Analyst is responsible for designing, implementing, supporting, and managing the lifecycle of enterprise audiovisual (AV) systems across WMATA facilities.

New!

Reston, VA4 days ago

Full-time
Employee

Provide assistance and oversight for all information systems operations activities, including computer and telecommunications/communications operations, data entry, data control, LAN/MAN/WAN administration and operations support, operating systems programming, system security policy procedures, and/or web strategy and operations. Perform a variety of systems engineering tasks and activities that are broad in nature and are concerned with major systems design, integration, and implementation, including, hardware, software, budgetary, and support facilities and/or equipment.

New!

Laurel, MD6 days ago

$105,000–$290,000

Are an established user of relevant of EDL modeling and analysis tools, such as Program to Optimize Simulated Trajectories (POST2), Fully Implicit Ablation and Thermal response program (FIAT), CHarring Ablator Response (CHAR), Langley Aerothermodynamic Upwind Relaxation Algorithm (LAURA), Data-Parallel Line Relaxation (DPLR), High-Altitude Radiation Algorithm (HARA), and/or Nonequilibrium Radiative Transport and Spectra Program (NEQAIR). Do you have experience leading Entry, Descent, and Landing (EDL) flight systems, and are willing to share that knowledge with a multifaceted team of world-class engineers dedicated to develop, test, launch, and operate one of the most ambitious missions ever developed for NASA?.

New!

Washington DC, DC2 days ago

The ideal candidate will have hands-on experience supporting and modifying enterprise audio-visual control systems, including Crestron-controlled environments, within mission-critical settings such as command centers, video wall systems, and executive AV environments. In addition, the engineer will ensure seamless integration of AV solutions with enterprise IT infrastructure and clearly communicate technical strategies, solutions, and system updates to program leadership and key stakeholders.

New!

Merrifield, VA3 days ago

Remote

Maintain a continuous and strong security posture across all business and ISD IAM stakeholders via ongoing, proactive reviews of account access and authorization, and designing short- and long-term improvements to ensure violations are remediated. Leads and provides complex analysis across business stakeholders, technical stakeholders and other analysts supporting significant transformational and operational initiatives for the Identity & Access Management (IAM) services.

New!

Leesburg, VA3 days ago

Requirements 7+ years of telecommunications and networking experience (PSTN, VoIP, UCaaS, CCaaS, SIP, SBCs, QoS, cloud). Coordinate with internal teams (cabling, network, security, endpoint, etc.) on infrastructure and service issues.

New!

McLean,, Virginia2 days ago

$100–$105 Per Hour
Contractor

This role uniquely combines hands-on technical leadership with strategic thinking, requiring someone who can design & deliver solutions for today while building capabilities for tomorrow’s AIdriven landscape. The specific compensation for this position will be determined by several factors, including the scope, complexity, and location of the role, as well as the cost of labor in the market; the skills, education, training, credentials, and experience of the candidate; and other conditions of employment.

New!

Laurel, MD6 days ago

$100,000–$245,000

As a member of our team, you will provide thought leadership and conduct rigorous analysis and engineering to rapidly develop and demonstrate technologies and integrated systems concepts and solutions that can enable effective joint, integrated, theatre level defense across all operational warfighting domains (land, sea, air, space). Have experience and background in some or all of the following: systems architecture, requirements, interface, and algorithm prototyping and performance analysis, active and passive sensors, target tracking and sensor fusion algorithms and design concepts, command and control concepts, distributed communications systems, advanced kill chain analysis, integrated fire control concepts.

New!

Washinfton, DC5 days ago

Perform customer T2/T3 support activities including assessment of user experience scenarios and identifying resolutions to unique user access issues for Okta integrated applications. Description: Our client is seeking a Consultant SME Senior to provide guidance to IT partners on configuration, debugging, and deployment of tools requiring Identity and Access Management (IAM) integration.

Washington, DC8 days ago

$165,000–$165,000 Per Hour

This role focuses on integrating PACS with credentialing systems (PIV/CAC), supporting PKI-based validation, and maintaining secure access control infrastructure. We are supporting a federal program seeking a Physical Access Control (PACS) Integration Engineer to support enterprise access control systems and identity-based security environments.

New!

Washington, DC3 days ago

Sustainable Facilities Management Services (SFMS) is a fully integrated facilities management company that specializes in “Green Building” methodology with a core management team that has over 50 years’ experience in facilities management and consulting serving the federal, state, and local governments, as well as the industrial and commercial market place. Regional Training: Conduct safety training and "Toolbox Talks" for field technicians at various Maryland and Virginia sites, focusing on high-risk urban facility maintenance.

Rockville, MD30+ days ago

$122,400–$168,300

Develops 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).

Arlington, VA11 days ago

$120,000–$170,000 Per Year

If you have a strong background in Electrical engineering, with a particular focus on power generators, uninterruptible power supplies, life safety/emergency/mission critical power distribution, electric vehicle (EV) infrastructure, and other electrical equipment and system, we want to hear from you. Conduct surveys of existing areas and facilities, conduct design reviews, conduct code compliance inspections, witness code required testing, assist in code development and implementation, and execute small systems designs.

New!

Washington, DC3 days ago

Full-time
Employee

The incumbent will act as the principal personnel advisor to OUSW (R&E) leadership, managing a complex Joint Force environment comprised of Army, Navy, Air Force, Marine Corps, and Coast Guard Active Duty and Reserve personnel. Headquartered in Sterling, Virginia, NRI is an established CMMI Maturity Level 3 and ISO 9001: 2015, ISO/IEC 20000-1:2011, ISO/IEC 27001:2013, ISO 14001 Certified Small Disadvantaged Woman Owned Small Business.

New!

Washington, DC1 day ago

Remote

$70,000–$110,000

This role serves as the subject matter expert on Stored Value and Loyalty integrations, ensuring seamless interaction with POS systems and delivering scalable, high-impact solutions for client operations. The Senior Product Owner of Stored Value & Loyalty systems is responsible for defining, delivering, and optimizing guest identity, engagement, and rewards capabilities across Point-of-Sale technology platforms.

New!

McLean, VA3 days ago

Review user’s requests for new or modified computer programs to resolve feasibility, cost and time required, compatibility with current system, and computer capabilities, analyze and outline steps required to develop programs, using structured analysis and design, plan, develop, test, and document computer programs, applying knowledge of applicable computer system/platform application. With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from strategy and design to operations, fueled by the fast evolving and innovative world of cloud, data, AI, connectivity, software, digital engineering and platforms.

Washington, DC10 days ago

Works closely with the Senior Manager of Business Development (Tax), the Director of Business Development (Regulatory), practice leaders, relevant attorneys and various members of the Business Development & Marketing (BDM) Department to strengthen existing client relationships and secure new client engagements in alignment with overall practice business development goals. This role leads key business development initiatives and strategies, including driving new business development, existing client growth, inbound and outbound cross-selling, and delivering high-level proposals, RFPs, and other business development and marketing materials.

New!

Ashburn, VA5 days ago

$22–$30.80 Per Hour
Temporary
Contractor
Full-time

Ranked a Top Staffing Firm in the U.S. by Staffing Industry Analysts for six consecutive years, Genesis10 puts thousands of consultants and employees to work across the United States every year in contract, contract-for-hire, and permanent placement roles. This role involves deploying and maintaining server and network hardware, participating in system integration, and ensuring the continuous operation of mission-critical systems in a 24/7 data center.

McLean, VA24 days ago

Temporary
Contractor
Full-time

Ranked a Top Staffing Firm in the U.S. by Staffing Industry Analysts for six consecutive years, Genesis10 puts thousands of consultants and employees to work across the United States every year in contract, contract-for-hire, and permanent placement roles. The ideal candidate will analyze and convert complex SQL queries to align with new data sources, work with Snowflake for data warehousing, and support technology delivery activities for business and support teams.

Resume Resources

Free Resume Templates Free Resume Builder

Get noticed by top employers!

Upload your resume to let employers know you're open to Systems Integration job opportunities. Plus, receive relevant job recommendations in your inbox.

Systems Integration Jobs in Vienna, VA

Software Systems Integration Engineer - RHEL - Secret Clearance Required Jobot

System Integration & Test Engineer Jobot

Software/Systems Integration Engineer (Secret Clearance Required) Jobot

System Integration & Test Engineer (FAA / Air Traffic Control) Jobot

Building Automation Systems (BAS) Programmer Jobot

Systems Security Engineer - RMF Jobot

Junior Linux Systems Engineer (RHEL/Clearance) Jobot

System Resiliency & System Safety Engineer Jobot

Reverse Engineer for RF Systems Johns Hopkins Applied Physics Laboratory (APL)

Risk and Compliance Systems Analyst System One

Project Engineer - Advanced Systems Inmarsat Government, Inc

Senior PLC Design Engineer Jobot

Systems Engineer DCS Corporation

IT - Systems Engineer II PlanIT Group

Senior Paralegal Manager Hybrid Jobot

Lead Systems Engineer - AWS Cloud System One

Director of Sales – Data Center Services TeleWorld Solutions

Electrical Commissioning Engineer Jobot

Mechanical Commissioning Engineer Jobot

Army - Senior Program Manager (Arlington, VA) Integrated Data Services

BAS Service Technician - Delta Controls Jobot

Air Force - Senior Account Manager (Arlington, VA) Integrated Data Services

Capture Manager System One

Electrical Engineer II (VA) GCR Professional Services

Solutions Architect – Managed Services Jobot

Senior Drupal Architect Company Confidential

Outside Sales Representative, SNI Continental Resources

Computer Scientist JT4

Project Manager, Global Clients Securitas Technology

A4 Non-Kinetic Warfare Branch Chief Engineer Johns Hopkins Applied Physics Laboratory (APL)

ServiceNow Architect Credence

AV Infrastructure Analyst NuAxis Innovations

Network Engineer II Company Confidential

Dragonfly Entry and Descent Subject Matter Expert Johns Hopkins Applied Physics Laboratory (APL)

Senior AV Technician NuAxis Innovations

IAM Application Analyst System One

Voice Analyst System One

Director, Full Stack Engineering Pinnacle Technical Resources

Long Range Networked Fires Engineer Johns Hopkins Applied Physics Laboratory (APL)

SME Consultant Sr. (Okta) PlanIT Group

Physical Access Engineer System One

Quality Control (QC) / Safety Manager Sustainable Facilities Management Service

Prin Engineer (Underground Transmission) Exelon

Electrical Engineer Chinook Systems

Military Personnel Support Specialist Network Runners

Senior Product Owner - Stored Value & Loyalty Solutions Aramark

Sr. ServiceNow Business Analyst Capgemini Government Solutions LLC

Manager, Business Development (Regulatory) Engage Partners, Inc.

Associate Data Center Technician - Onsite Genesis10

Backend Python Developer Genesis10

Resume Resources