Senior Software Engineer, Perception (R5420) Shield AI IncSenior Software Engineer, Perception (R5420)Washington, DC$163,200–$244,800 / yearWorking at the intersection of research and production, our engineers build the data pipelines, supervised fine-tuning (SFT) workflows, evaluation frameworks, and deployment infrastructure needed to transform cutting-edge AI research into reliable, mission-ready perception capabilities. The team advances how autonomous platforms understand and interpret the world by developing vision, vision-language (VLM), and vision-language-action (VLA) models that tackle core perception challenges such as object understanding, scene interpretation, and mission-relevant environmental awareness.
Software Engineer 1 GD Information TechnologySoftware Engineer 1Annapolis JunctionTo ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
Senior Software Simulation Engineer By Light Professional IT Services LLCSenior Software Simulation EngineerChantilly, VirginiaPosition Overview: Candidate will have the opportunity to work on a variety of flight simulators and develop/integrate software in areas such as avionics, tactical environments, interfaces to audio, visual, motion, and I/O systems, and Instructor Operator Stations (IOS). Veraxx has a high level of expertise in flight simulation hardware and software development, as well as computer architecture, tactical environments, interoperability (HLA/DIS), avionics systems, graphics and real-time embedded systems.
Senior Front End Software Engineer Axon Enterprise IncSenior Front End Software EngineerWashington, DC$141,000–$225,600 / yearIf you receive a suspicious offer or outreach from an email address that is not @axon.com, or if you are asked for sensitive personal information (bank details, Social Security Number) prematurely, please ignore the message and report it to recruitingops@axon.com. The actual base pay is dependent upon many factors, such as: level, function, training, transferable skills, work experience, business needs, geographic market, and often a combination of all these factors.
Senior Software Engineer, Front End, Public Sector GoogleSenior Software Engineer, Front End, Public SectorReston, VAWe're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. We focus on helping United States public sector institutions accelerate their digital transformations, and we continue to make significant investments and grow our team to meet the complex needs of local, state and federal government and educational institutions.
Lead Software Engineer ROY Jorgensen Associates IncLead Software EngineerWashington, DCRemoteThis role owns the architecture and end-to-end delivery of a three-layer geospatial (Esri ArcGIS), work-management, and agentic-AI platform, operating as part of a small, AI-native engineering team in which each engineer is equipped with AI coding tools as a force-multiplier rather than a side tool. The position requires performing a wide range of responsibilities related to software architecture, full-stack development, cloud infrastructure, data and system integration, security, and production support for enterprise applications that serve the Firm's highway and infrastructure maintenance operations.
Cloud Software Engineer| All Levels -TS/SCI w/MD Poly Security Clearance Required Tulzi TechnologiesCloud Software Engineer| All Levels -TS/SCI w/MD Poly Security Clearance RequiredMarylandTulzi Technologies, LLC (Tulzi) prides ourselves on an open, and honest culture in the workplace which builds a morale conducive to inspiring growth on our team, while balancing lifestyle by supporting personal and family goals with flexibility. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.
Software Engineer ManTechSoftware EngineerFort Meade, MDBachelor’s Degree in Computer Science or related discipline with 20+ years of software engineering experience; Four years of additional software engineering experience may be substituted for a Bachelor’s Degree. The Software Engineer will leverage their strong technical background and knowledge to design, develop, and maintain complex software systems while ensuring all functional and performance requirements are met.
Cloud Software Engineer TS/SCI with poly Peraton IncCloud Software Engineer TS/SCI with polyAnnapolis Junction, MD$104,000–$166,000 / yearBenefits: Peraton offers enhanced benefits to employees supporting this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap, and eligibility to participate in an attractive bonus plan. A Bachelor''s Degree in Computer Science or in a related technical field from an accredited college or university is highly desired which will be considered equivalent to two (2) years of experience.
Software Engineer Merit 321Software EngineerElkridge, MDLocation: Elkridge, MD This role offers the opportunity to contribute to a fast-paced development environment focused on delivering tools that help users turn complex data into actionable intelligence. You will work within a priority-driven team focused on making data more accessible and useful, incorporating direct user feedback to guide ongoing enhancements.
NewSenior Software Engineer Two Six Technologies IncSenior Software EngineerHerndon, VA$125,000–$190,000 / yearAs a Two Six Technologies Senior Software Engineer for a large-scale platform for situational awareness and command and control, you will work with the development team, designers, and users to develop and implement new features and generally help shape program functionality and usability. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.
DevOps Software Engineer Lockheed Martin CorpDevOps Software EngineerManassas, VABasic Qualifications: Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, Electrical Engineering or equivalent STEM field with 2+ years of related experience; or equivalent education/experience. Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees.
NewSoftware Engineer 2 - Linux/Bash/Python/IAM/CI/CD/Git Captivation SoftwareSoftware Engineer 2 - Linux/Bash/Python/IAM/CI/CD/GitAnnapolis Junction, MarylandMinimum Qualifications: Master's degree in Computer Science or related discipline from an accredited college or university, plus three (3) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity. Bachelor's degree in Computer Science or related discipline from an accredited college or university, plus five (5) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.
Full Stack Software Engineer Reinventing GeospatialFull Stack Software EngineerFairfax, VAWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. 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.
NewSoftware Engineer III Omega Enterprise Solutions, LLCSoftware Engineer IIIAnnapolis Junction, MDFull timeAt the highest levels the SWE may work independently or in a lead technical role, developing system architecture and requirements, defining processes and methodologies, resolving complex technical issues or research problems, and may have responsibility for directing the software activities of a large program. Omega Enterprise Solutions is a Maryland-based, Service-Disabled Veteran-Owned Small Business (SDVOSB) with a special focus on the U.S. Department of Defense (DoD) and Intelligence Community (IC) mission and enabling technologies.
Senior Software Engineer - FFPP-8801 Innovative Systems & SolutionsSenior Software Engineer - FFPP-8801Annapolis Junction, MarylandProvides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components. The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements.
Senior Software Engineer 3 T-Rex Solutions LLCSenior Software Engineer 3Annapolis Junction, MD$200,000–$250,000 / yearT-Rex offers both IT and professional services to numerous Federal agencies and is a leader in providing high quality and innovative solutions in the areas of Cloud and Infrastructure Services, Cyber Security, and Big Data Engineering. Established in 1999, T-Rex Solutions, LLC is a proven mid-tier business providing data-centric mission services to the Federal government as it increasingly tries to secure and leverage the power of data.
Principal Software Engineer- TS/SCI w/Poly GD Information TechnologyPrincipal Software Engineer- TS/SCI w/PolyAnnapolis JunctionThe Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. Provides specific input to the software components of system design to include hardware/software tradeoffs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.
Software Engineer (Hybrid) - 28021 HII Mission Technologies DivisionSoftware Engineer (Hybrid) - 28021Columbia, MD$115,199–$155,000 / yearYou will work closely with other talented engineers to create secure, enterprise-grade AI software solutions, including Model Context Protocol (MCP) servers, reusable AI skills, strict safety guardrails, and other AI framework capabilities that meet the complex needs of our clients. Build Model Context Protocol (MCP) servers and a library of reusable "skills" (function calling/tools) that enable AI models to safely interact with our internal databases, microservices, and external APIs.
Senior Software Engineer Mastercard IncSenior Software EngineerArlington, VA$132,000–$212,000 / yearAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. Hands‑on experience building and operating cloud‑native systems (AWS/Azure), including APIs, event‑driven services, and distributed data stores (SQL, key‑value, or document databases).
Cyber Software Engineer, TS/SCI w/ Poly PeratonCyber Software Engineer, TS/SCI w/ PolyAnnapolis Junction, Maryland$176,000–$282,000 / yearFull timePeraton offers enhanced benefits to employees working on our critical National Security programs, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan. Your work will directly support high-stakes missions through: Developing and maintaining complex, scalable software systems for advanced data processing, real-time analytics, and intelligence operations.
Senior Software Engineer - Architecture & Systems Design CACI International IncSenior Software Engineer - Architecture & Systems DesignHerndon, VA$94,400–$198,200 / yearPay 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. Create technical documentation including message sequence charts, UML class diagrams, and software architecture specifications that enable distributed teams to build complex systems correctly and efficiently.
Ontology Software Developer (TS/SCI) VantorOntology Software Developer (TS/SCI)Herndon, Virginia$220,000–$242,000 / yearWorking within an Agile DevSecOps environment, the Software Engineer collaborates with ontology engineers, database engineers, data scientists, and Government stakeholders to deliver secure, high-performance applications that leverage Semantic Web technologies and AI/ML capabilities. This position develops scalable applications, APIs, and microservices that integrate ontology-driven data models, knowledge graphs, and enterprise data sources to support Object-Based Intelligence workflows.
Senior Cloud Software Engineer (Python & JavaScript) The Josef GroupSenior Cloud Software Engineer (Python & JavaScript)Chantilly, VirginiaMinimum 8 years of experience with a Bachelor’s degree; or 7 years of experience with a Master’s degree; or 6 years of experience with a Doctorate. What Would be Nice to Have Demonstrated experience with tools, such as IDA Pro, Ghidra, JADX, or APKtool.
Java Software Engineer - Space Domain PeratonJava Software Engineer - Space DomainHerndon, Virginia$104,000–$166,000 / yearFull timePeraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan. The EMMETT program, a next gen Space Domain Awareness (SDA) Indications and Warning (I&W) system, establishes a repository of resident space objects (RSOs), finds RSOs of interest, and provides data to ground operators.
Application Software Engineer GIGATEC EngineeringApplication Software EngineerAnnapolis Junction, MDFull timeYou will work closely with developers, system administrators, project managers, and mission customers to streamline workflows, improve user experience, and keep productivity engines humming. Experience using an integrated development environment such as the Atlassian plugin software developer kit (SDK) or Visual Studio Code (VS Code).
NewSoftware Engineer JobotSoftware EngineerArlington, VA$120,000–$150,000 / yearInformation 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!
NewSystem Test Engineer (Hardware & Software / FAA) JobotSystem Test Engineer (Hardware & Software / FAA)Rockville, MD$120,000–$170,000 / yearInformation 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 committed to creating an environment where employees are empowered to make an impact, work alongside highly talented teams, and contribute to meaningful, mission-critical initiatives in a supportive and forward-thinking workplace.
NewSr. Software Engineer JobotSr. Software EngineerGaithersburg, MD$140,000–$165,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. Our teams partner closely with customers to deliver innovative solutions across cloud strategy, cybersecurity, systems integration, data engineering, machine learning, AI, disaster recovery, and enterprise infrastructure initiatives.
NewSenior Software Engineer JobotSenior Software EngineerFalls Church, VA$150,000–$200,000 / yearInformation 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 client is a well-funded deep tech company headquartered in Northern Virginia, building a suite of autonomous software reliability and testing products.
Computer Vision Engineer JobotComputer Vision EngineerHerndon, VA$125,000–$160,000 / yearInformation 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. This is a permanent position in the autonomous systems industry where you will be instrumental in developing, implementing, and optimizing cutting-edge computer vision systems.
NewSoftware Systems Engineer (Linux/Windows/Clearance) JobotSoftware Systems Engineer (Linux/Windows/Clearance)Manassas, VA$80,000–$100,000 / yearInformation 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.
Senior Manager, Software Engineering HITT ContractingSenior Manager, Software EngineeringFalls Church, VA$120,000–$175,000 / yearReporting to the Head of Software Engineering, the Principal Software Engineer sets the technical direction for how software gets built at HITT — architecting the practice’s first AI-native applications, establishing the platform and paved-road tooling every team will use, and writing production code every day alongside AI coding agents. The Principal Software Engineer will help recruit engineers into a lean, agile, AI-augmented team and will train HITT’s existing developers in AI-enabled methods — through pairing, code review, workshops, and reference implementations — raising the technical bar for the entire practice.
Director, Software Product HITT ContractingDirector, Software ProductFalls Church, VA$130,000–$210,000 / yearThis leader owns the software product portfolio for their area end to end: partnering with business and field leaders to find the highest-value problems, translating them into clear product bets, sequencing the roadmap, and driving delivery through rapid, iterative cycles. This is a hands-on leadership role for a product-minded builder: someone who is happiest close to the work — shaping backlogs, pressure-testing prototypes, clearing blockers — and who knows how to get small, AI-augmented teams to ship.
Senior Roadway Engineer Whitman, Requardt & Associates, LLPSenior Roadway EngineerFairfax, VA$160,000–$240,000 / yearFull timeThe Senior Project Engineer is responsible for managing the development of the project including coordination with client and subconsultants and will be responsible for the design of horizontal and vertical alignments, development of roadway plans and profiles, roadside evaluation and design, maintenance of traffic design, preparation of construction plans, specifications, cost estimates and the development of technical reports. The Senior Project Engineer will be responsible for the planning and design of assigned projects by supervising the design efforts of junior engineers and coordinating with other design disciplines to develop project deliverables.
Mechanical Engineer - Mid Level Whitman, Requardt & Associates, LLPMechanical Engineer - Mid LevelFairfax, VA$140,000–$215,000 / yearFull timeWe are looking for a highly experienced mechanical engineer with in-depth knowledge of various mechanical system designs, including DX packaged systems, hydronic systems, chilled water plants, heating water plants, and plumbing. As a Mechanical Project Engineer, you will be a key player in completing the design and construction administration for small to medium-sized projects, as well as collaborating within larger design teams for substantial projects.
Roadway Engineer Whitman, Requardt & Associates, LLPRoadway EngineerFairfax, VA$90,000–$185,000 / yearFull timeThe specific compensation offered to a candidate may vary based on factors including, but not limited to, the candidate’s relevant knowledge, training, skills, work location, and/or experience. The engineer will lead multidiscipline design teams in the delivery of major transportation improvement projects across Virginia.
Senior Rail and Transit Engineer Whitman, Requardt & Associates, LLPSenior Rail and Transit EngineerFairfax, VA$160,000–$240,000 / yearFull timeThe candidate will be responsible for coordination and oversight of a wide variety of rail related design projects including, but not limited to MDOT Maryland Transit Administration, CSXT, WMATA, Amtrak, DRPT, and VPRA. Participates in Design/Build efforts including consulting with contractor/construction personnel concerning design constructability as related to field conditions, sequencing and scheduling of construction activities.
Water Tank Engineer Whitman, Requardt & Associates, LLPWater Tank EngineerFairfax, VA$90,000–$185,000 / yearFull timeThis role involves collaborating with multidisciplinary teams, delivering high-quality engineering solutions, and ensuring projects meet client expectations, budget, and schedule. The specific compensation offered to a candidate may vary based on factors including, but not limited to, the candidate’s relevant knowledge, training, skills, work location, and/or experience.
Building Structural Engineer - Entry Level Whitman, Requardt & Associates, LLPBuilding Structural Engineer - Entry LevelFairfax, VA$70,000–$125,000 / yearFull timeCome join our collaborative team of engineers and architects on a variety of challenging projects, including buildings, industrial facilities, mission critical/secure facilities, water/wastewater plants, and waterfront facilities. A copy of current, or most recent, school transcript (If you are applying via a 3rd party site that does not allow attachments, please email transcript to careers@wrallp.com.
Transportation - Water Resources Engineer Whitman, Requardt & Associates, LLPTransportation - Water Resources EngineerFairfax, VA$90,000–$185,000 / yearFull timeExperience designing drainage, stormwater management systems/BMP’s, erosion and sediment pollution controls; and preparing contract documents preferred. The specific compensation offered to a candidate may vary based on factors including, but not limited to, the candidate’s relevant knowledge, training, skills, work location, and/or experience.
Water/Wastewater Process Mechanical Engineer Whitman, Requardt & Associates, LLPWater/Wastewater Process Mechanical EngineerFairfax, VA$90,000–$185,000 / yearFull timeThe Water/Wastewater Process Mechanical Engineer will be responsible for the evaluation, planning, design, and construction administration of municipal water and wastewater treatment facilities & processes, distribution and collection systems, chemical storage & feed systems, and process mechanical, piping and pumping systems. The specific compensation offered to a candidate may vary based on factors including, but not limited to, the candidate’s relevant knowledge, training, skills, work location, and/or experience.
Transportation - Water Resources Engineer - Mid Level Whitman, Requardt & Associates, LLPTransportation - Water Resources Engineer - Mid LevelFairfax, VA$140,000–$215,000 / yearFull timeVarious Hydraulic Engineering Circulars (HEC’s) for scour, stream and bank stability, roadway stability and stream scour/stability countermeasure design including but not limited to HEC-18, HEC-20 and HEC-23. The specific compensation offered to a candidate may vary based on factors including, but not limited to, the candidate’s relevant knowledge, training, skills, work location, and/or experience.
Sr. Software Engineer TS/SCI Poly LeidosSr. Software Engineer TS/SCI PolyAlexandria, VirginiaYou will provide software process management and control throughout the coding portion of the software development process and will promote code reuse and cross-program collaboration while reducing maintenance costs by creating common functions and shared actions for developers and testers. Must have experience or familiarity with multiple Java frameworks: Spring to include Boot and Data, Java Enterprise Edition (JEE) (i.e., JPA, EJB, JTA, Servlet), Jackson, Jersey, Swing, JavaFX.
Software Engineer, Lead Booz Allen HamiltonSoftware Engineer, LeadLaurel, MarylandOnsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.
Junior Software Engineer Belay TechnologiesJunior Software EngineerTBD (Maryland Area), MD$70,000–$190,000 / yearCandidates are desired to have the following skills: Implementation of the MOAT system in Java/Python using AWS services, Implementation of automated tests at functional and systems levels, Partnership with System engineers to execute the agile process, Prototyping of solution space in the AWS cloud. Provides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.
Software Engineer in Deployment - JobID-0241 INNOVATIVE DEFENSE TECHNOLOGIESSoftware Engineer in Deployment - JobID-0241Arlington, VA$135,000–$273,000 / yearWho You Are (Required): Bachelor's Degree in Information Technology, Computer Science, Computer Engineering, Electrical Engineering, Systems Engineering, Physics, or Math, or equivalent full-time professional experience; Master's Degree in Engineering or other technical field highly desired. Manage, mentor, and lead a small team of engineers working operational and development tasks while championing the use of AI to streamline the team's workflow, incorporating AI-driven approaches to optimize automation and reduce the complexity of installations.
Senior Tracking Software Engineer, Space ANDURIL INDUSTRIESSenior Tracking Software Engineer, SpaceWashington, DC$191,000–$253,000 / yearAs a senior member of the team, you will architect and implement sophisticated multi-target tracking systems using cutting-edge state estimation and data association techniques, develop physics-based models to validate performance, and mentor engineers while working closely with software teams to deploy your algorithms into operational systems. We're developing fully integrated hardware and software systems, including Lattice for Space Missions and modular payloads, to address growing threats in space and ensure our Guardians maintain a decisive advantage in this contested war-fighting domain.
Electrical Engineer II (VA) GCR Professional ServicesElectrical Engineer II (VA)Chantilly, Virginia$40–$50 / hourContractorProject Management: Plan and manage electrical engineering projects, including creating project timelines, allocating resources, and coordinating with cross-functional teams. Collaboration: Collaborate with other engineers, technicians, and professionals to integrate electrical systems into larger projects or products.
Software Engineer - Python/FASApi/JavaScript/JSON/CSS/MongoDB/Docker Captivation SoftwareSoftware Engineer - Python/FASApi/JavaScript/JSON/CSS/MongoDB/DockerAnnapolis JunctionCaptivation Software is looking for a software engineer to provide customer support and infrastructure services with quick response capabilities for SIGINT and Cyber Solutions. Security Clearance: Must currently hold a Top Secret/SCI U.S. Government security clearance with a favorable Polygraph, therefore all candidates must be a U.S. citizen.