39 senior software engineer jobs found

Description SAIC is searching for a motivated, career and customer-oriented Senior Software Test 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. Job Description: Develops and executes test plans, test cases, and test procedures to ensure that all information systems products and services meet organization standards and end-user requirements. Develops test plans, test schedule, and approach. Writes test cases and scripts and identifies data for test scenarios. Conducts a walk through on test case/script with Test Managers, Requirement Leads, Project Managers, and Development Leads. Performs and leads tests of software and/or IT systems to ensure proper operation and freedom from defects. Performs verification activities on work products using defined methods, procedures and criteria with an appropriate verification environment. Documents and communicates...

Description SAIC has an immediate opening for a Software Engineer to maintain, upgrade, and develop as necessary a custom software solution critical to the daily execution of our customer's mission. The software the candidate will be responsible for maintains the customer office's configuration management library and automated processes. The current software solution runs in a SharePoint environment and integrates custom Java code to perform customer specific use cases. Roles and Responsibilities: Working with a team responsible for office governance and configuration management activities, the candidate will: Perform software maintenance and minor upgrades to address user concerns Perform testing and debugging ahead of software release to ensure no interruption to operations Provide support, troubleshooting, and training to end users as necessary in use of system Develop emerging team use cases into software as necessary Maintain...

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...

Everforth ECS is seeking a AI/ML Engineer to work in our Dahlgren,VA office . The Program The AI/ML Software Engineer will be part of a team of experts charged with providing support in the areas of cyber analysis and cyber development capabilities in response to Navy's and DoD's needs for Cyber Situational Awareness (SA), Cyber Command and Control (C2), Mission Assurance, and Homeland Defense. Program scope includes identifying cyber key terrain by analyzing operational requirements, conducting cyber analyses and assessments, and developing and performing modeling and simulation in support of different cyber threat scenarios. Additionally, program support includes developing methodology and framework in support of cyber risk assessment life cycle. Our team will provide capabilities to support the customer with rapid design, development, test, deployment, maintenance and operation of specific software and hardware capabilities to meet current Cyber Defensive needs. As...

Everforth ECS is seeking a Senior Scientist/Engineer with a mix of expertise in oncology and medical device development to serve as a Scientific Engineering Technical Advisor (SETA) to support an ARPA-H Program Manager and work in our Remote office. Are you a passionate scientist with expertise in medical device development (hardware and software), with at least 8 years of industry experience working in the areas of oncology, cancer biology, biomedical engineering, and/or biochemistry? Are you ready to support the Advanced Research Projects Agency for Health (ARPA-H) in their mission to accelerate better health outcomes for everyone by supporting complex and leading-edge research and development (R&D) projects designed to arrive at high-impact solutions to society's most challenging health problems? In this role, you will collaborate with the ARPA-H Program Manager and team to effectuate bold ARPA-H research initiatives, support the development, funding, and management...

Everforth ECS is seeking a Senior Zero Trust Engineer to work in the National Capital Region covering the Pentagon, Falls Church, and Fairfax . Please Note: This position is contingent upon contract award. The War Data Platform (WDP) is a key initiative within the U.S. Department of War's (DoW) AI-First strategy introduced in early 2026. The WDP separates business and financial data from operational warfighting data, aiming to accelerate the deployment of artificial intelligence (AI) on the battlefield. The WDP extends to Unclassified, Secret, and Top Secret environments, and supports collaboration between Combatant Commands, Joint Staff directorates, Senior Executive Service leaders, and operational analysts. • The Senior Zero Trust Engineer serves as the technical authority for Zero Trust Architecture (ZTA) design and implementation across the WDP enterprise, leading the enforcement of identity-centric access controls, network micro-segmentation, and continuous...

Everforth ECS is seeking a Senior Electrical Engineer to join the RPL team in Chantilly, VA . As a Senior Electrical Engineer, you will work on high performance RF systems used for Radar and Flight Termination System (FTS). Based on system requirements, you will collaborate with a multidisciplinary engineering team of RF Engineers, Mechanical Engineers, and Software Engineers, to derive solutions, perform verification testing, and troubleshoot any issues. A successful candidate will solve complex problems and complete hardware and firmware designs and perform hands on testing.

Description SAIC is seeking a Senior Firewall Engineer to support DCSA for an ONSITE position out of Quantico, VA. (All qualified candidates must possess a TS/SCI and a Sec+) 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 and Combatant Commands Business Group of SAIC is seeking a Senior Firewall 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....

Description Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities for the Defense Counterintelligence and Security Agency (DCSA). The Air Force, Space and Intelligence Business Group (AFSI) of SAIC is seeking a ServiceNow Software Developer Senior 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...

QED Systems, LLC, is currently recruiting a Senior Systems Engineer, to join our team in Fort Belvoir, VA to support our customer, Project Manager Expeditionary Energy & Sustainment Systems (PM E2S2) . Duties: Interact with system users to translate their requirements into systems, hardware, and software requirements and design. Participate in the development of test strategies. Solve engineering problems (or managing the solution of engineering problems) in the functional area to which assigned. Provide engineering support to PM E2S2 divisions and Product Management Offices across the product lifecycle applying principles, processes, and doctrine of DoD acquisition. Required Skills & Experience: Detail-oriented with excellent technical, verbal, and written communication skills. Required Clearance: ACTIVE CLEARANCE LEVEL REQUIRED: Secret Qualifications: Bachelor’s degree required. Degree in Computer Science, Information Systems,...

ECS is seeking a Senior Network Engineer to work remot ely. ECS is seeking a highly skilled Network Engineer to support and maintain enterprise network infrastructure across corporate office environments and three geographically distributed data centers. This role is responsible for designing, implementing, securing, and optimizing network systems that support mission-critical operations. The ideal candidate brings strong experience in multi-site networking, data center architecture, and enterprise-grade routing/switching, along with a proactive approach to reliability, security, and performance. Key Responsibilities Design, implement, and maintain network infrastructure across ECS corporate offices and data centers Manage core networking components, including routers, switches, firewalls, and load balancers Ensure high availability and performance of WAN/LAN connectivity between sites Support data center networking, including spine-leaf architecture, VLANs,...

Description SAIC is seeking a full time Senior Test & Evaluation Engineer to provide on site support at Quantico, VA, in direct support of United States Marine Corps (USMC) programs. This role supports both software and networking hardware testing activities and works closely with developers, system engineers, and government stakeholders to ensure solutions meet operational requirements. The engineer will develop and execute test plans, test cases, and procedures; perform Test & Evaluation (T&E) of new and existing USMC systems; and support the delivery of required test documentation. This position requires strong analytical abilities, experience with enterprise grade networks, and the ability to work collaboratively in a dynamic, mission focused environment. Job Duties: Develop, review, and execute test plans, test procedures, and test cases supporting USMC hardware and software systems. Conduct Test & Evaluation of systems across various platforms,...

Description SAIC has an immediate need for a Mid to Senior Full Stack Software Engineer with expertise in Java, C#, React and NiFi to support the Department of Defense (DoD) with the Defense Readiness Reporting System (DRRS) Sustainment system. The ideal candidate should possess deep technical acumen, thrive in a collaborative environment, and have the ability to deliver robust, scalable, and innovative solutions. While proficiency in all the listed technologies is ideal, we are also open to candidates who are highly skilled in some with a willingness to learn others. As a Software Engineer, you will play a key role in designing, developing, and maintaining enterprise-level applications. You will work closely with cross-functional teams to deliver high-quality software solutions aligned with organizational goals and user needs. NOTE: This position is hybrid/remote to the D.C. metro area. Candidates must be local to the D.C. metro area as there will be occasional onsite work....

Description Join a winning team!! SAIC is currently hiring to advance space capabilities supporting our Department of War (DOW) and Intelligence Community (IC) customers. Ten miles from the SAIC headquarters, our Chantilly, VA team supports systems development, targeting & intelligence analysis, systems engineering & integration and more. This role is for a Satellite Systems Engineering Manager assigned to a large-scale, multi-year contract supporting advanced and innovative space programs. The Satellite Systems Engineering Manager oversees a highly skilled technical team comprising systems engineers and satellite subject matter experts. Collaborating closely with the SAIC Program Management Team, the manager functions as a servant leader, ensuring effective execution of engineering objectives by facilitating team support across multiple satellite programs, translating strategic guidance from the Program Manager, and serving as the team's advocate to foster a...

ECS is seeking a Quality Assurance Engineer Senior to work in our Winchester, VA office. Please Note: This position is contingent upon contract award. Responsible for creating software test and automating test cases, performing application testing, validating bugs, and isolating issues; writing and initiating tests and then analyzing and reporting the test results in the ticketing system; and performing configuration management, change management, and release management

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 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....

ECS is seeking a Data Engineer Senior to work in our Winchester, VA office. Please Note: This position is contingent upon contract award. Responsible for carrying out engineering tasks to deliver an advanced visual analytic application to include: developing data analytics for desktop and web-developed visual analytic software; facilitating the bulk analysis of relational information utilizing advanced graphics, visualization, and high-performance computing, as well as using the specified open source, COTS, and GOTS technologies; and establishing an application that produces manageable, actionable intelligence from streams of a structured and semi-structured data.

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...