UNKNOWN

FEED

This position provides systems engineering and integration support for complex operational environments, serving as a key technical interface between software development teams, government customers, SETA representatives, and 24×7 mission operations personnel. The ideal candidate has experience supporting operational systems, coordinating software integration and deliveries, troubleshooting technical issues, analyzing system performance, and collaborating across multiple engineering and operational organizations.

CACI provides information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. A member of the Fortune 1000 Largest Companies, the Russell 2000 Index, and the S&amp;P SmallCap 600 Index, CACI provides dynamic careers for over 15,800 employees working in over 120 offices worldwide. Visit <a href="http://www.caci.com" target="_blank" itemprop="url" mns_rt="Company">www.caci.com</a>. 
 
 We strive to sustain a corporate culture based on integrity - one that's focused on treating customers ethically and making their priorities our priorities. We pride ourselves in finding and hiring people with the highest intellectual capital, and providing them with challenging opportunities and encouraging their innovation and initiative.

CACI

Systems Engineer

sourcestack_via_bold

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. This role involves building and maintaining highly used and critically important cloud-native microservices based applications that provide Situational Awareness and Collaboration capabilities.

Full Stack Software Engineer, Mid level

FULL_TIME

Clearance: Active Top Secret clearance with an ability to obtain SCI access and willingness to obtain CI Polygraph US Citizenship Required *This job posting is for a potential upcoming opening, and we encourage interested candidates to apply for future consideration. RGi provides opportunities, resources, training, and mentorship to all our employees to let them take control of their careers and become a leader or a crucial member of our company.

Reinventing Geospatial, Inc. (RGi)

Software Engineer

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Bachelor's degree in a network engineering/computer engineering related discipline and 10+ years IT network engineering and architecture experience (Tier III and above, network infrastructure design and implementation) with large, complex networks and cloud environments; Masters and 8+ years of related experience; may accept additional experience in lieu of degree. Strong/Deep knowledge of Layer2/Layer3, routing and switching, tunneling, and networking protocols: BGP, OSPF, EIGRP, static, L2TP, IPSEC, VPN, DMVPN, GRE Spanning tree, etherchannel, vlan trunking, 802.1q, HSRP, VRRP, GLBP, VPC, MPLS, and VLANs, as well as experience with enterprise-grade routers and switches.

SkyePoint Decisions

Network Engineer

GreenHouseAPI

A Bachelor’s degree in a Qualified Engineering Field or a related discipline from an accredited college or university plus ten (10) years of experience in system engineering (OR) An Associate's Degree, a High School Diploma or GED plus fourteen (14) years of general system engineering experience (OR) A Master’s degree in a Qualified Engineering Field or a related discipline from an accredited college or university plus eight (8) years of systems engineering experience (OR) A PhD in a Qualified Engineering Field or a related discipline from an accredited college or university plus six (6) years of systems engineering experience. Advanced Linux Operations — Perform deep‑level administration, tuning, and troubleshooting across complex Linux environments, including NSYS‑level diagnostic workflows and root‑cause analysis.

Prosync

System Engineer IV

Create test logs documenting testing performed during release sprints and observed defects; analyze results and provide regular progress reports. Communication Skills: Clear written and verbal communicator, able to write test plans and communicate defects to developers and other stakeholders.

Unissant Inc

Manual Test Engineer

You'll be contributing to systems designed for a modeling and simulation SaaS platform that provides dynamic compute power, access to tools, and collaboration capability through a model that will revolutionize the future of military research and development. A key aspect of your technical team lead role will be to lead development of the platform's administrative and platform services, including user management, licensing, usage tracking, application on-boarding, and core platform infrastructure in a secure, cloud-based environment.

YEAR

When you become part of the When you become part of the KBR team, your opportunities are endless. As a leading global technology, engineering, procurement and construction company serving the hydrocarbons and government services industries. For decades it has been the company that customers turn to for their most challenging assignments.
 
With operations in 40 countries, KBR has more than 25,000 people delivering services to customers in over 70 countries. Together they represent an unmatched reservoir of talent and experience in a wide range of markets.
 
Whatever the assignment, no matter how complex or demanding, KBR can marshal resources across every product line to respond quickly and effectively to changing markets and customer needs.
 
Whether it's providing the technology and consulting know-how to develop our customers' valuable assets; designing and constructing the infrastructure and facilities to develop energy resources in some of the world's more remote and challenging locations; providing support and services for men and women of their countries' armed forces; or navigating the intricacies of undertaking major projects in geopolitically or culturally sensitive environments, our clients depend on KBR because they know that We Deliver.
 
Join us and you'll be part of a dynamic, elite team of professionals who understand what it takes to get a job done and has the experience, knowledge and determination to succeed.”

ea_via_bold

Enterprise Integration & API Management: Develop and maintain custom APIs (REST, GraphQL, webhooks) and integration pipelines connecting AFO/Agentforce to Salesforce Data Cloud (Data 360), cloud warehouses (Snowflake, Databricks), and core ERPs (SAP, Oracle, NetSuite) via MuleSoft or custom middleware. Enterprise AI Grounding Systems: Architect, build, and maintain real-time data grounding infrastructure using RAG (Retrieval-Augmented Generation), vector databases, search indexes, and knowledge bases to supply agents with accurate enterprise context.

Salesforce.com, Inc.

Forward Deployed Engineer (Fde) - Agentforce Orchestration

Umbra’s ecosystem operates through three business units: Remote Sensing (the data), Space Systems (the components), and Mission Solutions (the platforms).Together, our teams develop capabilities that deliver persistent access, resilient performance, and mission-ready solutions, advancing U.S. space leadership while keeping the world safe and informed. This engineer will contribute to software systems across our mission planning, scheduling, command, control, and communications domains, partnering with product owners and multidisciplinary engineering teams to develop and operate the services that enable spacecraft operations at scale.

Umbra

Senior Software Engineer (Remote Sensing)

ADAPTED_NOW

Create test logs documenting testing performed during release sprints and observed defects; analyze results and provide regular progress reports. Ensure all defects are entered into the defect tracking system (Jira), and report bugs and errors to the Product Team with clear reproduction steps.

Unissant

Unissant Jobs

Role Summary: The Senior Test Engineerwill be supporting the Defense Information Systems Agency (DISA) and leads test strategy, automation, and performance validation efforts for Spectrum XXI software suite, ensuring compliance with DoD cybersecurity, performance, and operational requirements. Define and manage test plans, scenarios, and scripts to align with DoD spectrum management workflows coordinated with Spectrum Manager SMEs.

BluestoneLogic

Test Engineer - Senior

The SPM tracks the team's work to the completion of all deliverables accepted into a PI; coordinates with team members and customer sets to ensure stories have all the information needed to complete the work and that all necessary stories are created; and coordinate / socialize production changes and brief appropriate boards for deployment approval. Provide systems engineering and integration support to the government for the integration of newly developed Capabilities targeted for Integration test and operational environments and develop and deliver the processes to perform integration, staging, and release management for these Capabilities.

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Leidos Holdings Inc.

Principal Integration Engineer SPM

Required Education & Experience: Bachelor''s degree in a network engineering/computer engineering related discipline and 10+ years IT network engineering and architecture experience (Tier III and above, network infrastructure design and implementation) with large, complex networks and cloud environments; Masters and 8+ years of related experience; may accept additional experience in lieu of degree. The SAIC Vanguard 2025 Program provides comprehensive IT support consisting of the Department''s servers, network devices, network perimeter security, anti-virus engineering, public key infrastructure (PKI)/biometrics/encryption, monitoring tools, telephony, mobile computing platforms, virtual environments, cloud services, and enclave design/security engineering.

Science Applications International Corp

SDWAN Network Engineer

The company specializes in designing, fabricating, and installing complex HVAC, process piping, and other mechanical, electrical, and plumbing (MEP) systems-enhancing energy efficiency, reliability, and sustainability in new and existing facilities. Where pay ranges are indicated, please note that a successful candidate's exact pay will be determined based relevant job-related factors, including any of the following: candidate's experience, skills, and qualifications, as well as geographic and market considerations.

Legence Corp

Data Engineer

Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. Utilize Azure Automation and Intune to manage and secure cloud-based and on-premises Windows workstations and servers, ensuring they are patched to correct levels.

Mobile Device Management (MDM) Engineer Senior

We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. GliaCell’s Enterprise capabilities include Full-Stack Application Development, Big Data, Cloud Technologies, Analytics, Machine Learning, AI, and DevOps Containerization.

GliaCell Technologies

Software Engineer (Partial Telework)

partner JazzHR

We apply modern capabilities, including AI/ML, cloud, cybersecurity, and IT modernization to solve complex challenges, enable faster and more secure operations, and drive measurable mission outcomes. This program is driving a large-scale transformation of systems into a data-centric, cloud-native ecosystem capable of supporting high-volume, near real-time data processing and advanced analytics.

Revolutional, LLC

Lead Security Engineer

UI/UX Developer, Frontend Engineer, UI Developer, Web Application Developer, Interaction Designer, Full Stack Developer, Software Engineer (UI/UX), Frontend Developer, UX Designer, Product Designer, ect. Computer Science, Software Engineering, Web Development, Human-Computer Interaction, Graphic Design, Interaction Design, Information Technology, Digital Media, Multimedia Design, Applied Mathematics, ect.

Cymertek

UI/UX Software Engineer

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. We are looking for a highly motivated Systems Engineer who thrives on tackling complex challenges, integrating diverse systems, and designing intelligent, software-enabled solutions to enhance mission outcomes.

System Engineer

You advance the governance of Continuous Integration and Continuous Delivery (CI/CD) pipelines with partner teams, and you incorporate their feedback to improve efficiency while maintaining service-owner feature velocity, patching, and maintenance. You will be part of the team that solves infrastructure deployment challenges with software, delivers high-velocity and high-quality infrastructure in specialized cloud environments, and ships solutions.

Applications Engineer Jobs in Vienna, VA

Systems Engineer CACI

Full Stack Software Engineer, Mid level CACI

Software Engineer Reinventing Geospatial, Inc. (RGi)

Network Engineer SkyePoint Decisions

System Engineer IV Prosync

Manual Test Engineer Unissant Inc

Software Engineer KBR

Forward Deployed Engineer (Fde) - Agentforce Orchestration Salesforce.com, Inc.

Senior Software Engineer (Remote Sensing) Umbra

Manual Test Engineer Unissant

Test Engineer - Senior BluestoneLogic

Principal Integration Engineer SPM Leidos Holdings Inc.

SDWAN Network Engineer Science Applications International Corp

Data Engineer Legence Corp

Mobile Device Management (MDM) Engineer Senior Science Applications International Corp

Software Engineer (Partial Telework) GliaCell Technologies

Lead Security Engineer Revolutional, LLC

UI/UX Software Engineer Cymertek

System Engineer CACI

Senior Systems Engineer (Cleared) Salesforce.com, Inc.

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