56 senior software systems engineer jobs found

ECS is seeking a Junior Software Engineer Intern to work in our Fairfax, VA office for the summer of 2026. This internship offers a unique opportunity to move beyond the classroom and gain firsthand experience with production-grade workflows and real-world datasets. You will work alongside senior engineers and scientists to move models from research to the tactical edge, ensuring from end to end, both our warfighters & decision makers are empowered with the latest technology solutions at their fingertips. Job Description: ECS is seeking a Junior Software Engineer to participate in a team of scientists and engineers, and to support the execution of a variety of projects including Artificial Intelligence/Machine Learning and Big Data/Cloud Solutions. The candidate works closely with the Project Manager and technical team to swiftly develop solutions in an agile environment and deploy capabilities to the operational end user. The candidate cultivates an environment...

Description SAIC is seeking an experienced Senior Java Developer and AWS engineer to join our dynamic Agile teams delivering software solutions to the United States Patent and Trademark Office. In this role you will develop and maintain robust, scalable, and reliable Java applications within an automated DevSecOps AWS Environment. Responsibilities Design, develop, maintain, and deliver highly scalable and reliable software using Java web technologies. Demonstrate experience developing enterprise web-based applications. Develop and deploy Java applications on AWS using best practices and cloud-native services ⁠ Ensure compliance with AWS security and compliance standards (FedRAMP, HIPAA, etc.) Complete tasks to migrate large, complex Java applications from on-premises to AWS cloud ⁠ Optimize application performance, scalability, and cost efficiency on AWS Create Terraform scripts to automate various DevOps tasks Provide software development support to...

Description SAIC is searching for a motivated, career and customer-oriented Senior Database Engineer who performs high-level, day-to-day software testing solutions to join our team and begin an exciting and challenging career. This is a 100% Remote role. Responsibilities: Establishes database management systems, standards, requirements, guidelines and quality assurance for database deliverables, such as conceptual design and architecture, logical database, capacity planning, external data interface specification, data loading plan, data maintenance plan and security policy. Works with clients to translate business requirements into a logical model that will accurately support and represent the client s entity relationship and flow of data. Develops the appropriate database framework to convert the logical model into a physical model including the creation and maintenance of schemas containing windows, screens, tables and columns and reports that support the model; and...

ECS is seeking a Systems Engineer Senior to work in our Winchester, VA office. Please Note: This position is contingent upon contract award. Supervise, coordinate and/or perform additions and changes to network hardware and operating systems, and attached devices, including investigation, analysis, recommendation, configuration, installation, and testing of new network hardware and software. Provide direct support in the day-to-day operations on network hardware and operating systems including the evaluation of system utilization, monitoring response time and primary support for detection and correction of operational problems. Troubleshoot at the physical level of the network, working with network measurement hardware and software, as well as physical checking and testing of hardware devices at the logical level working with communication protocols. Participate in planning design, technical review and implementation for new network infrastructure hardware and...

Description SAIC is seeking a Systems Engineer for the Cloud team to support an IT Service Management effort for USTRANSCOM located at Scott Air Force Base (AFB) in Illinois. The USTC Managed Information Technology Services (MITS) contract is intended to provide strategic, technical, and program management guidance and support services to facilitate the operations and modernization of the combatant command's infrastructure, systems, and applications. This support will be provided to the USTC Command, Control, Communications & Cyber Systems Directorate (TCJ6). The successful candidate initiates, supervises, and/or develops requirements from a project's inception to conclusion for complex to extremely complex programs; Provides strategic advice, technical guidance and expertise to program and project staff; Provides detailed analysis, evaluation and recommendations for improvements, optimization development, and/or maintenance efforts for client-specific or mission critical...

Description This is an opening for a Senior Network Engineer to support the Department of State's (DoS) Diplomatic Technology Operations Division. This program provides transparent, interconnected systems and security supporting the DoS in successfully carrying out U.S. foreign policy missions worldwide. The Operations Division provides enterprise operations and maintenance support worldwide. SAIC's program is named "Vanguard" and is an IT consolidation consisting of the Department's data center, cloud, domestic and foreign network switch, routers and WAN devices. Currently, the role is three days onsite and 2 days remote in Springfield, VA. Typically M-F 0830-1700. (Hour's dependent on mission priorities to include potential on-call). Description of Duties: Evaluates, designs, documents, implements, validation testing, and performs problem isolation and resolution, and performance monitoring, tunes, sets standards and maintains a range of network components and...

Description SAIC is looking for a Senior VMware Engineer. This position is in support of the Department of State (DOS) as a part of the Vanguard 2.2.1 contract. The Vanguard 2.2.1 program provides transparent, interconnected systems and security support for the Department of State (DOS) DT program. The DT program enables the Department of State to successfully carry out its foreign policy mission by providing enterprise architecture design, engineering, operations and maintenance support services for data center services, desktop computers, servers, networks, firewalls, voice and data communications and other unique enterprise applications. The candidate will be responsible for the development of Virtualization solutions utilizing VMWare and Storage technologies. The candidate will research, analyze, evaluate and integrate as necessary new and emerging technologies in order to find ways to deliver a superior IT environment to the bureaus in a cost effective and secure manner....

Clearance Requirement: Ability to obtain and maintain a Secret Clearance Travel Requirements: None Location: Norfolk, VA SUMMARY: WR has an opportunity for a Software Engineer to support the GBS division by providing software development, computer systems, and lab support. This is an entry-level role working under the guidance of senior engineers, contributing to software development, testing, and system support activities. Position responsibilities will include, but are not limited to the following: Assist engineering staff with daily lab operations, test data collection, and general technical support tasks. Work under the direct technical supervision of senior personnel to complete assigned tasks. Support the analysis, definition, and documentation of requirements, including data flow, workflows, system interfaces, and outputs. Assist in developing plans, schedules, and tasking for software development activities. Participate in client...

Overview SCCI is seeking a Senior Software Engineer to join our team in support of a high-performing DoD acquisition program. The successful candidate will provide software engineering technical support, and mentor junior and mid-level software engineers. In this position your work will have a great impact on the program's overall mission in providing support to the Department of Defense. This position is available for immediate hire and is located in Dahlgren, VA . SCCI offers a comprehensive and competitive benefits package including Health, Dental, Vision, Life and Disability benefits, 401k with Company Match, time off consisting of 2 weeks of paid vacation, 48 hours of sick/personal leave, and 11 paid Holidays. Responsibilities: Provide Software Engineering technical support Provide mentorship for Junior - Mid level Software Engineers Support software engineering code-design reviews Perform requirements assessments and requirements...

Description SAIC is seeking GEOINT Systems Engineer to support SAIC's Prime Program, Landmark AOS in Chantilly, VA. Landmark AOS is a large SETA program, supporting the NRO's Ground Enterprise Directorate (GED), responsible for the acquisition of systems over the complete end-to-end life cycle. As the GEOINT Systems Engineer you will interact daily with senior government and Program staff to analyze new concepts and technologies; support the definition and baselining of new capabilities and/or enhancements; advise on all aspects of System Engineering analysis (architecture, requirements, Concept of Operations (CONOPs), interfaces, schedule, and dependency identification); test support, and provide Readiness Event support. Responsibilities to include Collaborate daily with development contractors, government program personnel, and customers on systems engineering and acquisition functions for GEOINT collection, mission management, and mission processing. Provide oversight...

Description SAIC is seeking a Senior Data Engineer with an Active TS/SCI clearance in support of NAVWAR's Naval Operational Architecture (NOA) program . The Senior Data Engineer will to support a transformational, Navy-led network-centric initiative that converges existing systems, automating the correlation of multiple ISR data streams, dramatically reducing the "sensor-to-shooter" timeline. This is a recently awarded contract, funded for five years. Work is performed ON-SITE and we are looking to hire in either one of the following locations listed below and you must be local to one of them: San Diego, CA Charleston, SC Monterey, CA Washington Liason Office and Pentagon Fort Carson, CO Colorado Springs, CO Denver, CO There will be up to 15% of travel required for this role. Please view our program page for more information and to view all open positions available: company website JOB DUTIES: Collaborate with cross-functional teams to...

Description Introduction Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities of the Defense Counterintelligence and Security Agency (DCSA). The Air Force Space and Intel Business Group of SAIC is seeking a Senior Virtual Desktop Engineer to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in safeguarding our nation's information. DCSA is the designated oversight authority on the accreditation of classified facilities, information systems, and the insider threat program. This involves security oversight of more than 10,000 companies and approximately 13,000 facilities involved in classified work throughout the DoD and 31 Federal agencies. Specifically, on the DCSA One IT program, SAIC will provide an enterprise IT solution that delivers highly secured and adaptable IT infrastructure, provides customer support, and...

Description The Senior Cyber Capabilities Software Engineer plays a central role in advancing SAIC's mission of excellence in innovative software development. By delivering solutions that meet stringent cybersecurity and operational requirements, this position ensures the deployment of mission-critical cyber capabilities that enhance operational success. The Senior Cyber Capabilities Engineer is responsible for designing, developing, and demonstrating cutting-edge cyber solutions that meet complex operational and technical needs. Leveraging deep technical and software engineering expertise, this individual plays a pivotal role in delivering mission-critical capabilities. The role supports the entire lifecycle-from requirements refinement and development through testing, integration, and delivery-while ensuring high-quality results that align with SAIC's strategic objectives and maintain cybersecurity compliance standards. This role also emphasizes collaboration, innovation,...

Description SAIC is seeking a Senior Field Support Engineer to join our team in Colorado Springs, CO. The Indicium Product Office is seeking candidates to represent and operate Network, System Integration and Test Environment (NSITE) software. Support typically involves Missile Defense Agency test execution activities (Flight Tests, Ground Tests and Wargames/Exercises). The candidate should also have the ability to perform hardware integration and maintenance, have a basic understanding of computer networking, and a general understanding of computer hardware troubleshooting. The candidate will also be responsible for conducting validating configuration management documentation in support of information assurance certification and accreditation activities. The candidate should be a self-starter and be able operate with minimal supervision. The candidate will support S3I, Redstone Arsenal, Huntsville, Alabama or MDIOC, Schriever SFB, Colorado Springs. Duties and...

ECS is seeking an Identity Credential and Access Management (ICAM) Subject Matter Expert (SME)/Engineer to work in our Ft. Meade, MD office in an onsite capacity. ECS is seeking an ICAM SME/Engineer (ICAM SME/E) to support robust Impact Level (IL) 5 and IL6 programs in an operational DoD environment that houses multiple U.S. Coalition Mission Partner Environments (MPE). The ICAM SME/E will help clients understand emerging technical solutions relative to client policies and operational requirements and apply analytical and innovative strategies to develop solutions to address client needs. The candidate will contribute to technical artifacts and thought leadership for IAM tools relating to Credential Management, Public Key Infrastructure, Alternate Credentials, Directory Services, Authentication solutions, and ICAM integrations. This position is a demanding, high-energy role that requires innovative ideas to manage identities, credentials, and access across Mission...

ECS is looking for a Principal Systems Engineer - Embedded Software Engineer to work Onsite in Arlington, VA. The Principal Systems Engineer will provide senior-level technical oversight, quality assurance, and lifecycle governance for embedded tactical software supporting Department of Defense and Navy weapon and combat systems. This is a principal individual-contributor role focused on reviewing, validating, and auditing embedded software and engineering decisions-not people management or day-to-day software development. The ideal candidate has deep experience in safety-critical, highly regulated environments such as missile systems, Aegis or Navy combat systems, or other real-time defense platforms, and brings the technical judgment needed to independently assess software quality, integration impacts, and engineering rigor. What You'll Do Serve as a senior technical authority on Change Control Boards (CCBs) governing embedded software updates and configuration...

Clearance Requirement: Active Secret Clearance is required to start Travel Requirements: 5-10% Location: Dam Neck, VA SUMMARY: WR has an opportunity for a Systems Engineer, Senior to provide technical support to project teams using sound judgment and experience. This role also involves evaluating new technical resources and contributing to systems development and integration efforts. Position responsibilities will include, but are not limited to the following: Independently analyzing the performance of hardware and software interfaces, and identifying alternatives to optimize resource usage and implement modern hardware solutions. Participating in the design, coding, testing, debugging, configuration, and documentation of operating systems and software. Supporting the evaluation and integration of new technical resources. Assisting users with the development and integration of systems and environments. Installing and managing system and...

Description SAIC is seeking a Cloud Engineer to support an IT Service Management effort for USTRANSCOM located at Scott Air Force Base (AFB) in Illinois. The USTC Managed Information Technology Services (MITS) contract is intended to provide strategic, technical, and program management guidance and support services to facilitate the operations and modernization of the combatant command's infrastructure, systems, and applications. This support will be provided to the USTC Command, Control, Communications & Cyber Systems Directorate (TCJ6). The successful candidate initiates, supervises, and/or develops requirements from a project's inception to conclusion for complex to extremely complex programs; Provides strategic advice, technical guidance and expertise to program and project staff; Provides detailed analysis, evaluation and recommendations for improvements, optimization development, and/or maintenance efforts for client-specific or mission critical challenges/issues;...

Description SAIC is seeking a qualified Senior Scientific Systems Engineer to support FDA operations. This role provides advanced scientific computing support to FDA scientists within the Center for Drug Evaluation and Research (CDER) in Silver Spring, MD. Our team supports FDA's scientific mission through comprehensive technical services including workstation administration, scientific software support, and infrastructure integration across macOS, Windows, and Linux environments within specialized laboratory environments. This position requires strong experience deploying, configuring, and supporting scientific computing systems across macOS, Windows and Linux environments. Key Responsibilities: Configure, deploy, and support Windows, macOS and Linux workstations in an enterprise scientific computing environment. Install, configure and support scientific applications on macOS, Windows and Linux systems. Install, configure and support scientific applications on...

Description As a CyberArk Senior Systems Engineer, you'll play a key role in enhancing our cybersecurity and identity management capabilities. You'll coordinate with external stakeholders, including DHS CISA integrators, to implement the Identity Lifecycle Management (ILM)/Mandatory User Re-Authentication (MUR) solutions at the Department of Transportation (DOT). This involves integrating DOT's SailPoint infrastructure with the ServiceNow environment and maintaining the ILM solution across development, testing, and production environments. Your responsibilities will also include: Supporting ILM workflows for Privileged Account Management (PAM) tools and Active Directory (AD), building new system connections, and maintaining Continuous Diagnostics and Mitigation (CDM) Dashboard integrations. You'll be responsible for deploying software updates, reporting on SailPoint IdentityIQ operations, and supporting the identification and remediation of security...