81 application support engineer jobs at 59 companies in Manassas, VA
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.NET Application Support Engineer
Ashburn or Harrisburg or Pennsauken
OnsiteFull Time
TransCore: Provides electronic tolling and intelligent traffic management solutions.
3+ YOE3+ years supporting or developing .NET applications, strong C# debugging, PowerShell scripting, IIS management, T-SQL/MS SQL proficiency, and experience with monitoring and automation; bachelor’s degree or equivalent.
C#, .NET Core, .NET Framework, ASP.NET MVC, Web API, PowerShell, IIS, T-SQL, Microsoft SQL Server, Event Viewer, Serilog, Log4Net, Azure, Google, AWS, Docker, Azure DevOps, Jenkins, GitHub Actions, Jira
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
14+ YOETS/SCI with Polygraph; bachelor’s in a technical field or equivalent experience (14 years); experience supporting enterprise applications (Maximo), Java, SQL, Linux, and troubleshooting across middleware and integrations.
IBM Maximo, Java Server Pages (JSP), Linux, IBM Installation Manager, WebSphere Application Server, SQL, Java, AWS, MySQL, Maven, SpringBoot, Docker, Angular, Git, GitLab, Atlassian Tool Suite, Oracle, Node.JS
CACINYSE: CACI: Provides information technology and professional services to government clients.
2+ YOETS/SCI with Polygraph; 10+ years with HS; 8 with an Associate; 6 with a Bachelor; 4 with a Master; 2 with a Doctorate; Linux admin; AWS; monitoring tools; 24/7 support.
Washington D.C. or Chicago or New York City or Los Angeles
$133k-$183k/yrHybridFull Time
Kirkland & Ellis: Provides legal services for corporate, litigation, and transactional matters.
8+ YOE8+ years in advanced application support/configuration, experience with e-discovery and litigation platforms, APIs/ETL/data integrations, Microsoft SQL, Linux, REST APIs, PowerShell, emerging AI, strong communication and problem-solving.
Relativity Server/One, Reveal, BrainSpace, AI, APIs, REST APIs, ETL, data pipelines, Microsoft SQL, Linux, PowerShell
Tyler TechnologiesNYSE: TYL: Provides software and technology services for the public sector.
Proficiency in Java, JavaScript, and SQL; experience with relational databases and J2EE application servers; ability to develop and support web-based applications on a low-code platform; bachelor's degree or equivalent.
ManTech: Provides technology solutions for defense and intelligence agencies.
4+ YOEBachelor's in IT/CS/MIS or equivalent with 4+ years (or HS diploma with 10+ years); strong SQL/NoSQL, HTML/CSS/JavaScript, REST API familiarity, Postman, Splunk/Datadog, AWS/Azure, ServiceNow experience; active TS/SCI with poly required.
MetroStar: Provides digital transformation and IT services to government agencies.
5+ YOEActive Top Secret/SCI clearance,5+ years supporting application delivery and load-balancing with hands-on F5 experience,automation/orchestration and monitoring skills;Bachelor's preferred.
Senior Staff Engineer Field Application Engineering
Washington or Andover
$128k-$176k/yrOnsiteFull Time
Infineon TechnologiesFrankfurt Stock Exchange: IFX: Designs and manufactures semiconductors for power and IoT systems.
5+ YOEBachelor's in EE/CE or related; 5+ years in field/applications engineering supporting power electronics or semiconductors; expertise in GaN/Si MOSFETs, power switching and high-frequency power design; schematic/PCB review experience; strong communication and account management skills.
Bespoke Technologies: Provides technical engineering and data solutions for national security.
Active Poly clearance required. Experience developing ServiceNow applications, using Jira, version control (Github/Subversion), supporting Tier 1-3, producing IT documentation, and strong web/UX skills; HTML5/CSS/XML/JavaScript and Tableau experience preferred.
Johnson ControlsNYSE: JCI: Provides integrated building technologies including HVAC, fire, and security systems.
Bachelor's in Engineering required; provides technical support for pre/post sales, equipment selection, submittals, estimating, and project execution. Proficiency with Microsoft Office (Word, Excel, Visio), Adobe Writer, and Windows. US citizen or permanent resident; no sponsorship.
Microsoft Word, Microsoft Excel, Microsoft Visio, Adobe Writer, Windows, AutoCad
Clark Construction Group: Constructs large-scale buildings and major civil infrastructure projects.
6+ YOEBachelor's in CS or related; 6+ years supporting Microsoft-stack applications (C#, VB.NET, .NET Framework, Microsoft SQL Server, IIS); experience with WebForms/MVC/WCF, HTML/CSS/JavaScript, troubleshooting, and legacy system modernization.
.NET Framework, C#, VB.NET, WebForms, MVC, WCF, Microsoft SQL Server, T-SQL, IIS, HTML, CSS, JavaScript, RESTful APIs, Git, Microsoft Azure DevOps, Microsoft Azure, AWS, Mendix, Microsoft PowerApps, CI/CD
California or New York City or Boston or San Francisco or Washington, D.C. or Seattle or Santa Monica
$115k-$173k/yrHybridFull Time, Temporary
Fenwick & West: Legal services for technology and life sciences companies.
5+ YOE5+ years supporting and developing financial applications, experience with application development (UI, middle tier, stored procedures), SQL, Microsoft Windows support, APIs, automation and AI/ML familiarity; Bachelor's in CS/IS or equivalent experience.
Microsoft Windows, SQL, APIs, AI services, AI/ML frameworks
Recorded Future: Provides AI-driven threat intelligence to protect organizations from cyberattacks.
5+ YOE5+ years in DevOps/SRE/platform roles with strong Kubernetes, Docker, Linux, cloud, networking, CI/CD, and scripting skills; experience with image/VM builds and security integrations.
Federal Communications Commission: Regulates communications via radio, television, wire, satellite, and cable.
1+ YOEOne year specialized IT experience equivalent to GS-13 designing, developing, testing, deploying, modernizing, and maintaining enterprise applications using low-code, cloud-native, microservices, APIs, CI/CD and DevSecOps; ensures security, accessibility, and operational support; mentors developers.
ElsightASX: ELS: Provides real-time connectivity bonding for unmanned vehicles and drones.
2+ YOE2+ years customer-facing technical support or professional services, networking fundamentals (TCP/IP, VPN, routing, NAT), Linux and Python experience, strong communication, US work authorization, willingness to travel multiple times per month.
Python, Linux, TCP/IP, VPN, routing, NAT, LTE, 5G, RF, SAT
Myth Software: Provides software development and IT services to federal agencies.
3+ YOE3+ years supporting Java applications (Spring); 1 year Angular; Agile experience with Jira; unit testing; strong communication and collaboration skills; ability to obtain CBP clearance.
Java, Spring, Angular, AngularJS, Jira, Git, Bamboo, Jenkins, SonarQube, Amazon Web Services (AWS), JMS, IBM MQ, ActiveMQ, Oracle, PostgreSQL, Linux
Integrated Computer Solutions: An IT services providing enterprise and mission IT solutions for government clients.
5+ YOEPublic Trust clearance and 5+ years supporting enterprise application infrastructure, with experience in messaging, proxy, DNS, authentication, remote support, monitoring, troubleshooting, and incident response.
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
4+ YOERequires 4+ years supporting DoD enterprise architecture, 4+ years designing/administrating F5 BIG-IP, experience with inline break-and-inspect proxies, TLS/mTLS configuration, knowledge of PKI/cryptography, Secret clearance, HS diploma or GED.
CellebriteNASDAQ: CLBT: Provider of digital forensic and investigative intelligence software solutions.
2+ YOERemote (Pacific Time) or hybrid support role; 2+ years technical/IT support experience; advanced Windows workstation support, intermediate networking, application software support, CRM case management, strong communication and problem-solving skills.
Windows, CRM, Salesforce, Microsoft Project, Monday Board, SQL, Claude, ChatGPT, Copilot, iOS, Android, AWS, Microsoft Cloud services