5,177 Results for

IT Jobs in Leesburg, VA

Jobs

New!

Manassas, VA2 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!

Sterling, VA2 days ago

$160,000–$180,000 Per Year

As an Operations Supervisor on our datacenter construction team, you will be responsible for supporting departmental operations while leading the execution of Building Automation construction projects, primarily for data center sites in Northern Virginia. 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, VA1 day ago

$90,000–$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. Our engineering teams build secure, maintainable systems that contribute directly to mission readiness across submarine, carrier, and shore-based environments while operating within collaborative agile development frameworks.

New!

West McLean, VA2 days ago

$190,000–$235,000 Per Year

A mission-focused engineering organization supporting classified U.S. Government programs is seeking an experienced Data Center Operations & Security Lead to oversee secure infrastructure environments within a high-availability facility. 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!

Tysons, VA2 days ago

$140,000–$215,000 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. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.

New!

Manassas, VA2 days ago

$80,000–$100,000 Per Year

New!

Vienna, VA2 days ago

$120,000–$155,000 Per Year

8-10+ 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.

New!

Manassas, VA2 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!

Manassas, VA2 days ago

$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, VAToday

$90,000–$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. Our engineering teams build secure, maintainable systems that contribute directly to mission readiness across submarine, carrier, and shore-based environments while operating within collaborative agile development frameworks.

New!

Alexandria, VA6 days ago

Consultants may work independently or as part of a small deployment team to assess environments, architect VMware solutions, and optimize VCF capabilities for customer sites. Support VMware VCF deployments across multiple U.S. locations (Alexandria, VA, Omaha, NE, Hanscom AFB, MA, Tampa, FL, Miami, FL, Fort Huachuca, AZ, San Diego, CA).

Alexandria, VA8 days ago

You will work directly with customer stakeholders across high-visibility DoD, federal, or regulated environments to implement scalable, secure, and high-performing platforms. CALIBRE Systems inc., an employee owned mission focused solutions and digital transformation company, is looking to fill multiple slots in the Washington, DC area.

New!

McLean, VA2 days ago

Remote

$140,000–$180,000 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. You’ll design and build our machine learning infrastructure - starting with vector search and retrieval-augmented generation and expanding into fine-tuned LLMs with human feedback loops.

New!

West McLean, VA2 days ago

$140,000–$215,000 Per Year

With 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.

New!

Arlington, VA2 days ago

$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. 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!

New!

Bethesda, MD2 days ago

$140,000–$180,000 Per Year

The organization partners, acquires, or in-licenses drugs from pharma companies, research organizations, and biotechs to develop programs past clinical proof of concept and beyond, ultimately helping to bring new medicines to patients. 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.

Chantilly, VA8 days ago

Intern

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. This is a unique opportunity for a college student to gain hands-on experience working on an established, high-scale project, where you will contribute to real-world features that power global wireless networks.

Chantilly, VA8 days ago

Full-time

As this is an established project already up and running, you will play a key role in contributing immediate value through feature enhancements, modernization of legacy components, and the optimization of data-heavy user experiences. You will work at the intersection of design and engineering, ensuring that our complex orchestration workflows remain intuitive, responsive, and visually consistent for our global user base.

Chantilly, VA22 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.

Mc Lean, VA28 days ago

$100,000–$140,000 Per Year

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. By providing customers with fast, efficient and reliable information systems and support services, IDS has become a preferred provider of financial and programmatic systems, services, and solutions across a wide variety of government agencies.

New!

Arlington, VA1 day ago

$100,000–$120,000 Per Year
Contractor

Identifying the cause of an incident and recognizing the key elements to ask external entities when learning the background and potential infection vector of an incident, · Receiving and analyzing network alerts from various sources within the enterprise and determine possible causes of such alerts. · Tracking and documenting Computer Network Defense (CND) incidents from initial detection through final resolution, and work with other components within the organization to obtain and coordinate information pertaining to ongoing incidents.

Manassas, VA9 days ago

Full-time
Employee

Employment Type: Contract-to-HireJob SummaryWe are seeking an experienced Senior OT Network Architect to lead the design, implementation, and modernization of Operational Technology (OT) network infrastructure in a mission-critical industrial environment. Develop network segmentation strategies using ISA/IEC 62443 zones and conduits models.

New!

McLean, VA5 days ago

$130,000–$150,000

Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs. Vaco by Highspring values a diverse workplace and strongly encourages women, people of color, LGBTQ+ individuals, people with disabilities, members of ethnic minorities, foreign-born residents, and veterans to apply.

McLean, VA10 days ago

$165,000–$200,000

Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide. Strong understanding of agentic AI including Transformers, Model Context Protocol, Agent2Agent Protocol, LangGraph, and other modern frameworks.

McLean, VA13 days ago

Credence has an immediate opening for a Linux Administrator to support the Defense Logistics Agency (DLA) Enterprise Sourcing, Medical and Contingency (ESMC) Portfolio Hosting Support contract. This role will be responsible for administering, maintaining, and securing Linux-based systems supporting enterprise-level logistics and IT services in a mission-critical environment.

McLean, VA12 days ago

We are seeking a design-driven thinker and collaborative leader who thrives on solving complex challenges and delivering intuitive, elegant, and engaging user experiences. You’ll apply advanced principles of user interface and interaction design while leading efforts around persona development, journey mapping, task analysis, and information architecture.

New!

McLean, VAToday

You’ll work with and guide a multi-disciplinary team of analysts, data engineers, developers, and data consumers in a fast-paced, agile environment. 3+ years of experience designing, developing, operationalizing, and maintaining data applications for reporting and analytics at enterprise scale.

New!

McLean, VAToday

You’ll work with and guide a multi-disciplinary team of analysts, data engineers, developers, and data consumers in a fast-paced, agile environment. You’ll use your experience in analytical exploration and data examination while you manage the assessment, design, building, and maintenance of analytic solutions for your clients.

New!

Reston, VA1 day ago

Remote

Full-time
Employee

Must have 3 years' experience in each of the following: with CI/CD and DevOps practices, with strong object-oriented programming skills, in Front-End Development with React, Angular, JavaScript, NodeJS, HTML, CSS, and jQuery, in Web Application Servers in configuring and deploying applications, with Microservices Architecture in designing and developing microservices, in Database Technologies: with normalized/denormalized databases, in Version Control & DevOps Tools with Git/Bitbucket, Docker, and other DevOps tools, in implementing best practices, optimizing performance, and conducting code reviews. Requires a minimum of a Bachelor’s (higher degree accepted) or its foreign equivalent in Computer Science, Software Engineering or closely related discipline plus 36 months’ experience as a full-stack software developer using object-oriented programming languages.

Falls Church, VA9 days ago

Full-time
Employee

This role requires strong troubleshooting skills, responsiveness, and adherence to SLA-driven support models. Our technologists have always gone the extra mile to help our federal clients succeed.

Reston, VA9 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.

Vienna, VA9 days ago

Full-time
Employee

5+ years of in-depth working knowledge of ASP.NET Core using C#.NET, Angular/React, HTML5, CSS, JavaScript/TypeScript, and MS SQL Server, Identity. 5+ years of experience with Agile methodology and eXtreme Programming best practices like TDD, CI/CD, and pair programming. Experience deploying and managing applications using cloud services such as Azure App Services, Azure Functions, AWS EC2, Lambda, or containerized.

Vienna, VA9 days ago

Full-time
Employee

The ideal candidate will have a passion for technology, a strong desire to learn, and the ability to work collaboratively with our experienced development team. This internship provides an excellent opportunity for hands-on experience in software development within the context of government projects.

New!

Arlington, VA3 days ago

You will architect and implement scalable agent frameworks that integrate LLMs, APIs, external tools, and enterprise systems to automate complex workflows for datacenter operations. We are seeking a Senior Agentic AI Developer to design, build, and deploy advanced autonomous AI systems capable of multi-step reasoning, tool usage, and dynamic decision-making.

New!

Reston, VA1 day ago

Collaborate with security engineers, compliance officers, and business managers to ensure policies are both technically sound and operationally practical. • The enforced dress code is business casual, i.e., collared shirt with slacks for men, no skirts above the knee for women.

New!

Falls Church, VAToday

Experience: 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.

New!

Reston, VA4 days ago

Advanced routing and traffic engineering (BGP, OSPF/ISIS), path control, and convergence considerations SDWAN and secure connectivity patterns (SASE/SSE where applicable), including segmentation and policy design, QoS design (marking, queuing and shaping), performance engineering (latency/jitter/loss), and capacity planning. • Recommend optimized WAN solutions to Chief Engineer in support of current and long-range planning; collaborate with technical leads to select, recommend, and obtain approvals for tools and technologies that improve efficiency, reduce cost, and increase customer satisfaction.

New!

Rockville, MD3 days ago

Job Description: Summary: The CIOCC Tier 1 Analyst shall be responsible for the following, but not limited to: Analyze and respond to security events and incidents from SIEM, Firewall (FW), Intrusion Detection Systems (IDS), Intrusion Prevention Systems (IPS), Endpoint Security Solutions, Network Access Control (NAC) and other client data sources. • 1-3 years of security operations center environment experience or recent college graduate with industry certifications.

New!

Falls Church, VAToday

Securing AI Workflows: Design security frameworks for the end-to-end AI lifecycle, including securing data ingestion, protecting model weights, and implementing "Guardrail" architectures for Large Language Models (LLMs). • AI-Enhanced Pipeline Security: Architect and maintain automated CI/CD pipelines that utilize AI/ML models for static and dynamic analysis (SAST/DAST) to identify complex vulnerabilities that traditional rule-based tools miss.

New!

Fort Belvoir, VA5 days ago

Implements the Defense (DOD) Risk Management Framework (RMF) and assists the Information System Security Manager (ISSM) to ensure successful implementation of associated security controls and reviews all RMF documentation packages, and system fielding, operations, or upgrade requirements. Assists with implementing audit measures to ensure compliance with regulatory requirements, participate in organizational inspections and surveys of computer systems, provide inspection results, and assess the adequacy of corrective actions taken.

New!

Rosslyn, VA5 days ago

Work with data scientists and analysts to rapidly design, implement, test, and deploy applications capable of tackling complex analytical tasks using large datasets. The selected individuals will need to live in the DC Metro area to report to HQ in Arlington, VA twice per month (a minimum of 2 days per 2-week period on average).

New!

Reston, VA3 days ago

Remote

A degree from an accredited College/University in Software Engineering, Computer Science, or related discipline is preferred; Able to perform all functional duties independently; Experience training/mentoring less experienced personnel; Experience authoring or contributing to software-related documentation such as requirements specifications, design documents, technical manuals, and user manuals; Excellent communication skills. Expertise in Struts , Spring MVC, Git Bash, Java25, WebSphere , Tomcat, GitHub , GitHub Copilot, VersionOne , JUnit, JDBC, Maven ,ALM, UFT.

New!

Reston, VirginiaToday

$60–$65 Per Hour
Contractor

We are seeking a highly skilled Business Systems Analyst III to support business process analysis, vendor coordination, testing, and data-driven problem-solving for Multifamily Loan Servicing. 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.

Bethesda, MD8 days ago

$80,000–$95,000 Per Year

System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Requirements Minimum of 5+ years of IT support experience, including at least 2 years in a supervisory or lead role .

New!

22102, VA6 days ago

Remote

System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Design, build, test, and deploy full-stack applications using Python, Django, and modern JavaScript frameworks.

New!

Washington, DC6 days ago

They will be responsible for designing, implementing, and maintaining secure, scalable, and efficient cloud infrastructure for multiple environments (e.g., development, testing, staging, production) of the new application. The DevSecOps Engineer will be instrumental in establishing best practices for cloud-native application development, enhancing our security posture, and enabling agile and efficient operations.

Reston, VA7 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.

New!

Herndon, VA6 days ago

Support Linux-based systems supporting telecommunications infrastructure by ensuring high availability, performance, and reliability, supporting environments on CentOS 7 transitioning to Rocky Linux. • Monitor and analyze telecommunications systems, interpret inbound data streams, and utilize packet capture tools like Wireshark and tcpdump to troubleshoot core network issues.

Merrifield, VA7 days ago

Experience with troubleshooting Palo Alto Network Global Protect client issues on Windows endpoints. Troubleshoot Palo Alto Network Global Protect client issues on Windows endpoints.

Alexandria, VA11 days ago

$150,000–$170,000 Per Year

This role typically supports sensitive government operations requiring strict adherence to security protocols, rapid problem-solving, and the ability to maintain secure communications under demanding conditions. A Senior CSfC Cybersecurity Engineer focuses on creating, deploying, and maintaining NSA-compliant secure communication solutions using layered commercial products.

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IT Jobs in Leesburg, VA

Software Systems Integration Engineer - RHEL - Secret Clearance Required Jobot

BAS Operations Supervisor - Data Center Construction Jobot

Entry Level Full Stack Developer | Java/Secret Clearance Jobot

Data Center Operations & Security Lead (TS/SCI w/ Poly) Jobot

Senior Backend Engineer Jobot

Junior Linux Systems Engineer (RHEL/Clearance) Jobot

Electrical Engineer - (MEP / Design-Build Consulting Engineers) Jobot

Software/Systems Integration Engineer (Secret Clearance Required) Jobot

Systems Security Engineer - RMF Jobot

Software Engineer | Java/ Secret Clearance Jobot

VMware Consultant- Active Clearance REQUIRED Calibre Systems

Senior Consultant - VMware Cloud Foundation (VCF) Design and Deploy Calibre Systems

Senior AI/ML Engineer Jobot

Senior Software Engineer Jobot

Software Engineer Jobot

Senior Data Engineer Jobot

Software Developer (Full Stack/Backend) Intern TeleWorld Solutions

Software Engineer (UI/UX) TeleWorld Solutions

Director of Sales – Data Center Services TeleWorld Solutions

Azure System Administrator (McLean, VA) Integrated Data Services

Incident Manager - III Base One Technology

Senior OT Network Architect Census InfoTech Inc

Senior Python Full Stack Engineer Vaco LLC

Senior AI Technical Lead Credence

Linux Administrator Credence

User Experience Designer Sparks Group

Senior Data Engineer - Palantir Sparks Group

Junior Data Engineer - Palantir Sparks Group

Sr. Software Engineer Ellucian Company LLC

Help Desk Specialist Company Confidential

Network Engineer II Company Confidential

Cloud Full-Stack Software Developer Company Confidential

Jr. Software Developer Company Confidential

Senior Agentic AI Developer PlanIT Group

IT - Information Security/Privacy Analyst II PlanIT Group

Sr Cloud Security Engineer PlanIT Group

Enterprise Architect PlanIT Group

Information Security/Privacy Analyst I PlanIT Group

IT- Cyber Security Architect/ Engineer III PlanIT Group

Cybersecurity Analyst DCS Corporation

Full Stack Developer PlanIT Group

Software Developer PlanIT Group

Business Systems Analyst III Pinnacle Technical Resources

Senior Help Desk Engineer System One

Full-Stack Developer System One

Senior IT DevSecOps Engineer (onsite) System One

Lead Systems Engineer - AWS Cloud System One

Senior Telecom Software Engineer (TS/SCI clearance) System One

Desktop Support System One

Senior Cybersecurity Engineer (CSfC Specialist) System One

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