Software Developer Associate General Dynamics Information TechnologySoftware Developer AssociateAnnapolis Junction, MD$66,602–$80,500 / yearA global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development.
Senior Software Developer LeidosSenior Software DeveloperGaithersburg, MD$107,900–$195,050If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . June 8, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Software Developer LeidosSoftware DeveloperGaithersburg, MD$69,550–$125,725If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . June 11, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Senior Software Engineer (C++ / Java) JobotSenior Software Engineer (C++ / Java)MONTGOMRY VLG, MD$165,000–$185,000 / 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. This role is ideal for a seasoned engineer who enjoys solving complex technical challenges, contributing to system architecture, and partnering closely with Systems Engineering, Development, and Test teams to deliver robust, scalable solutions.
Software Engineer (TS/SCI & full scope Polygraph) JobotSoftware Engineer (TS/SCI & full scope Polygraph)Annapolis Junction, MD$80,000–$220,000 / 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. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.
Sr. 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.
Junior NextGen Developer DCS CorporationJunior NextGen DeveloperCalifornia Maryland, MDRemote$73,160–$120,000 / yearDCS is seeking an experienced Junior Developer to join its teams developing exciting and modern Air Force and Navy next-generation mission planning software on an Agile/SAFe team. Contribute to software development as part of a team contributing to a multi-team, multi-organization enterprise using Scaled Agile Framework (SAFe).
Principal Software Engineer (SWE-4) LeidosPrincipal Software Engineer (SWE-4)Annapolis Junction, MD$131,300–$237,350Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. Seeking an experienced and talented software developer to join an existing team that develops and manages software products and tools integral to discovering new mobile data related to the mission.
NewFormal Verification and Software Assurance Engineer Johns Hopkins Applied Physics Laboratory (APL)Formal Verification and Software Assurance EngineerLaurel, MD$100,000–$245,000Experience with (1) Static Analysis tools such as Coverity and Klockwork, (2) Dynamic Analysis tools such as Valgrind, libFuzzer, and Java Pathfinder, (3) Symbolic Execution Engines such as KLEE and angr, (4) Model Checkers such as TLA+ and SPIN, (5) SMT Solvers such as Z3, CVC5 and MathSAT (6) other Automated Theorem Provers such as ACL-2 and GnatProve, (7) Interactive Theorem Provers such as Lean and Rocq, and any other formal methods tools. Experience with formal methods tools and techniques, such as language safety properties, symbolic execution, abstract interpretation, model checking, automated and interactive theorem proving, programming language analysis and design, type theory, static source code analysis, and formal logic.
Reverse Engineer and Offensive Cyber Developer Johns Hopkins Applied Physics Laboratory (APL)Reverse Engineer and Offensive Cyber DeveloperLaurel, MD$100,000–$245,000The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges. We seek experienced reverse engineers and developers who will build inventive cyber capabilities leveraging novel reverse engineering and exploitation techniques.
AI-Enabled Cyber Capabilities Developer Johns Hopkins Applied Physics Laboratory (APL)AI-Enabled Cyber Capabilities DeveloperLaurel, MD$105,000–$290,000It requires designing AI-native architectures, orchestrating tool-using agents, and rapidly iterating on prototypes that demonstrate functional, outcome-driven impact. The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges.
AI Software Engineer Lead LeidosAI Software Engineer LeadGaithersburg, MD$107,900–$195,050If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . Requires BS degree (Computer Science, Engineering or related field) and 10+ year’s of prior relevant experience OR, MS with 7+ year’s of prior relevant experience; OR 7 years of additional experience in lieu of degree.
DevOps Engineer By Light Professional IT ServicesDevOps EngineerHanover, MDAbility to perform many duties involving DevOps functions including, but not limited to, authoring and maintaining automation deployment and monitoring scripts, researching, implementing and maintaining Continuous Integration / Continuous Delivery (CI-CD) tools and processes, automating application deployments, managing virtualized and containerized assets, creating virtual and physical network configurations, servers, communications, and test and developer engineering support. Interact with developers to understand software changes that will impact development and testing activities, examine any relevant change implementation, then report the changes to developers and testers welcoming feedback for future improvements.
NewRadar System Engineer - Maritime and Next-Generation Radars Johns Hopkins Applied Physics Laboratory (APL)Radar System Engineer - Maritime and Next-Generation RadarsLaurel, MD$85,000–$195,000The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.
Maritime Surveillance LFA/CLFA System Design and Operations Analyst Johns Hopkins Applied Physics Laboratory (APL)Maritime Surveillance LFA/CLFA System Design and Operations AnalystLaurel, MD$100,000–$245,000We are seeking a dynamic, creative, and analytical candidate to help us assess the design and influence the capability development of the U.S. Navy's Maritime Surveillance Systems (MSS) Low Frequency Active (LFA), Compact LFA (CLFA), and prototype Deployable Active Systems. Have earned a US Navy designator, billet classification, or enlisted classification code related to surveillance systems and/or active sonar, or have a B.S. in Engineering, Physics, Mathematics, Computer Science, or related technical field.
Signal Processing Engineer Johns Hopkins Applied Physics Laboratory (APL)Signal Processing EngineerLaurel, MD$100,000–$245,000You'll be joining our hardworking team of system engineers, algorithm developers, FPGA and embedded software engineers, and advanced EW technology enthusiasts who enjoy working together to craft creative solutions to complex challenges. The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges.
NewLead Security Engineer with TS/SCI Poly LeidosLead Security Engineer with TS/SCI PolyAnnapolis Junction, MD$154,050–$278,475The selected individual will lead all security engineering efforts for a large, complex network environment with geographically distributed systems; and will manage a team of Information Systems Security Officers (ISSOs) and Information Systems Security Engineers (ISSEs), providing technical leadership and direction to meet program requirements. At least twelve years of experience with defense-in-depth principals/technology (including access control, authorization, identification and authentication, public key infrastructure, network and enterprise security architecture) and applying risk assessment methodology to system development.
NewSoftware Developer (Journeyman Software Developer; Systems Software) Avid Technology Professionals LLCSoftware Developer (Journeyman Software Developer; Systems Software)Columbia, MDBachelor's degree from an accredited college or university in a related discipline and 3+ years of experience. Experience supporting USCYBERCOM, NSA, DoD cyber operations, or related mission environments.
Junior Software Developer Nightwing Intelligence SolutionsJunior Software DeveloperAnnapolis Junction, MarylandOur capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges.
Senior Software Developer VTGSenior Software DeveloperHanover, MarylandFull timeOverview: As a Senior Software Developer supporting mission-essential national security initiatives, you will design, develop, integrate, and maintain secure, high-performance software solutions that enable critical intelligence, defense, and operational missions. Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design.
Sr. Software Developer Leidos Holdings IncSr. Software DeveloperMD$154,050–$278,475 / yearYou will be responsible for analyzing and resolving highly complex software issues related to multiple aspects and components of the system; collaborate with other experts within the program and in the user community to design, develop, and debug existing software, and to design and develop enhancements that incorporate new capabilities into various components of the existing systems; provide technical leadership for software development activities as a member of an agile team and will actively participate in program increment planning and related team activities. Preferred Qualifications: Experience with the following: JEE, SQL, application servers (Tomcat, WebLogic, JBoss), scripting; experience with high level requirements management including requirements decomposition, secure systems engineering and development, trade-off analysis, interface control, and testing and continuous integration.
Software Engineer 3 (AI Assisted Developer Tooling) Bigbear.aiSoftware Engineer 3 (AI Assisted Developer Tooling)Columbia, MarylandFull timeThis role emphasizes AI-assisted IDE capabilities, automated code quality workflows, and experimentation with agentic and autonomous systems to support software development tasks. Overview: BigBear.ai is seeking a Software Engineer 3 to focus on improving the productivity and experience of software developers by building and integrating advanced development tooling.
Senior Software Developer VTG.Senior Software DeveloperHanover, MDThe software engineer should have experience with enterprise backend development (preferably, with Java), interfacing with a database, and some experience passing objects between programming layers using Google Protocol Buffers, RPC, or a variant thereof. This position will support a mission-focused customer developing, deploying, and maintaining user-facing Command and Control Systems for embedded devices.
In Office Software Developer and Microsoft Power Platform Engineer Ghanem Forwarding LLCIn Office Software Developer and Microsoft Power Platform Engineer68 Alco Place, MDWe want someone who will sit in the office, learn our business end‑to‑end, understand how our systems are actually used by real people, and help us build, fix, and improve internal platforms that drive operations. -You’ll work hands‑on with leadership, operations, and technical systems—and you’ll be expected to suggest better solutions, not just follow tickets.
Junior Level Software Developer SkillStormJunior Level Software DeveloperBaltimore, MDWe build customer-ready technology workforces for top Fortune 100 companies, government, and system integrators within the U.S. Through collaboration with our software partners and customers, we create and advance purpose-built technology experts with the custom tech stacks, clearances, certifications, and location requirements of our clients. As a result of a robust supply chain of experienced tech professionals, our clients realize their business initiatives faster, and significantly increase productivity with Day-One effective technology teams at scale.
AI Software Developer Leidos Holdings IncAI Software DeveloperGaithersburg, MD$69,550–$125,725 / yearAs a member of a Scaled Agile software development organization, you will contribute to the technical execution of a program that integrates proven, globally deployed technologies with modern cloud-native and AI-enabled capabilities. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Lead AI Software Developer Leidos Holdings IncLead AI Software DeveloperGaithersburg, MD$87,100–$157,450 / yearWhat You'll Do Design, develop, and maintain microservices-based applications using modern software engineering best practices Collaborate with product owners, architects, and engineers in an Agile/SAFe environment Participate in sprint planning, daily standups, reviews, and retrospectives Collaborate with systems engineering and program teams to translate requirements into working software solutions Develop clean, maintainable, and testable code following CI/CD and DevSecOps practices Contribute to system design discussions and technical decision-making Integrate services with databases, messaging systems, and external APIs Support troubleshooting, performance tuning, and continuous improvement Work closely with QA, DevOps, and platform teams to ensure reliable delivery Implement modern automated testing strategies, including unit, integration, contract, and end-to-end testing Use AI-assisted development tools to accelerate coding, refactoring, debugging, and test creation Core Technical Qualifications: Bachelor's degree in Computer Science, Engineering, or a related technical field (or equivalent experience) 4+ years of relevant experience or a Master's Degree and 2+ years of relevant experience Hands-on experience building and supporting microservices-based systems Proficiency in at least one modern programming language (e.g., Java, Python, C++, or similar on a Linux-based system) Experience or exposure to AI/ML-enabled systems (Claude-Code), automation, or intelligent platforms. Experience working in Agile environments Understanding of APIs and distributed system concepts Ability to obtain and maintain a Public Trust U.S. citizenship required Successful completion of background investigations as required by the government customer Preferred / Desired Qualifications Experience with Git-based version control and CI/CD pipelines Familiarity with Scaled Agile Framework (SAFe) Experience working with relational and/or NoSQL databases Hands-on experience with Kafka or other event-streaming technologies Cloud experience (AWS, Azure, or GCP) Containerization and orchestration experience (Docker, Kubernetes) Experience working in DevSecOps environments * Experience with test automation frameworks and integration of automated test suites into CI/CD pipelines Why Leidos?
Software Developer PeratonSoftware DeveloperLinthicum, Maryland$135,000–$216,000 / yearFull timeResponsibilities: Peraton is seeking a Software Developer in our Linthicum, MD office in support of our Department of Defense (DoD) customer as part of a highly talented, highly motivated, and high-performing team. The successful candidate will contribute to protecting national security interests by leveraging technical expertise, analytical skills, and innovative problem-solving to address complex cyber challenges.
Senior Software Developer Intelliforce-IT Solutions GroupSenior Software DeveloperAnnapolis Junction, MarylandYou will work at the intersection of software engineering and applied AI, building capabilities that help developers move faster through smarter IDE experiences, better automation, and more effective engineering workflows. You will design AI-assisted developer tooling, experiment with agentic and semi-autonomous systems, and integrate new capabilities into existing platforms and pipelines.
NewFront-End Senior Software Developer By Light Professional IT Services LLCFront-End Senior Software DeveloperHanover, MarylandResponsibilities: As a key member of our Cyber Range Development Team, you will: Design, develop, and test high-performance front-end web applications supporting cyber training platforms used worldwide. Company Overview: By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next.
NewJunior Software Developer (Active TS/SCI with Poly Required) GD Information TechnologyJunior Software Developer (Active TS/SCI with Poly Required)Annapolis 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. At General Dynamics Information Technology (GDIT) you'll be part of a team that makes a true impact by building cutting-edge mission-critical applications that help the end user accomplish their mission and keep people safe.
Software Developer Lentech Inc.Software DeveloperLinthicum, MDFull timePay 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. The engineer will be heavily involved with the creation, maintenance, and running of Pig and or PySpark analytics and is responsible for reviewing data ingest tickets and merge requests with other developers on the team.
NGTS Software Engineer/Developer American Systems CorpNGTS Software Engineer/DeveloperMDAMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance.
Software Developer VTGSoftware DeveloperHanover, MarylandFull timeOverview: VTG, is seeking a Mid-Level Software Engineer to support a mission-focused customer developing, deploying, and maintaining user-facing Command and Control (C2) systems for embedded devices. Debug and resolve software defects across multiple programming languages (e.g., Java, JavaScript, Python, C++).
Full Stack Software Developer EvapcoFull Stack Software DeveloperMarylandThis role is ideal for an engineer who enjoys solving complex integration problems, building intuitive user experiences, and delivering reliable systems that operate in high-availability manufacturing environments (production lines, inventory movement, quality workflows, equipment data, etc.). You will develop solutions across web, desktop, and mobile using Microsoft technologies including ASP.NET Core MVC, Blazor, WPF, and .NET MAUI , enabling real-time visibility and streamlined workflows from the shop floor to the back office.
Software Developer Nightwing Intelligence SolutionsSoftware DeveloperAnnapolis Junction, Maryland$64,000–$128,000 / yearOur capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges.
Software Developer Peraton IncSoftware DeveloperMD$135,000–$216,000 / yearCode new features: integrate APIs, configure software packages; conduct unit testing and prepare for production; O&M support for running applications (improve and patch). Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace.
Junior Software Developer T-Rex Solutions LLCJunior Software DeveloperHanover, MDThe 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.
Junior Backend Software Developer Visionist IncJunior Backend Software DeveloperColumbia, MD$115,000–$160,000 / yearWe embed small engineering teams with analysts to rapidly identify and solve mission capability gaps playing a critical role in defending our nation's cyber infrastructure & providing expertise in malware analysis, attribution, mapping adversarial infrastructure, pen testing, and operational planning. This premier program encompasses traditional software services including Systems Design and Engineering, Database Administration, Data Science and Knowledge Management, Enterprise Risk Management, Integration and Test, as well as Operations and Systems Support.
Software Developer Intelliforce-IT Solutions GroupSoftware DeveloperAnnapolis Junction, MarylandOr bachelor’s degree in computer science or related discipline from an accredited college or university, plus five years of experience as a Software Engineer in programs and contracts of similar scope, type, and complexity. Master’s degree in computer science or related discipline from an accredited college or university, plus three years of experience as a Software Engineer in programs and contracts of similar scope, type, and complexity.
Senior Software Developer ParsonsSenior Software DeveloperMarylandThe Senior Developer will design and implement logical, functional software code across multiple programming languages, make informed technology choices for different environments, and rapidly diagnose and correct complex software issues in mission-critical systems. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace.
NewSenior Software Developer - TS/SCI with Polygraph GD Information TechnologySenior Software Developer - TS/SCI with PolygraphAnnapolis JunctionYou'll participate across the full software development lifecycle — designing and documenting systems, writing code and automated tests, and planning and monitoring production deployments — taking ownership of what you build, from architecture and implementation through containerized build and deployment. Put your software and architecture expertise to work designing, building, and sustaining the systems that keep sensitive operations secure, reliable, and ready, and grow your career alongside a team that values iteration and shares every improvement to lift the whole group up.
AWS Software Developer Parsons CorpAWS Software DeveloperMD$148,300–$266,900 / yearYou will contribute to the design, deployment, automation, and sustainment of scalable cloud-native capabilities across AWS and hybrid environments leveraging Kubernetes, AWS serverless technologies (Lambda, Step Functions, API Gateway), Infrastructure as Code (Terraform, CloudFormation), and modern DevSecOps practices. In this role you will develop, maintain, and enhance a complex software system comprised of distributed microservices, Elasticsearch/OpenSearch analytics platforms, event-driven workflows, and multiple data persistence technologies.
Software Developer -Senior Vets HiredSoftware Developer -SeniorPatuxent, MarylandThe Software Developer (C++) – Senior is responsible for designing, developing, integrating, testing, and maintaining advanced software applications that support modeling, simulation, and training environments. This role focuses on C++ software development, system integration, code review, debugging, software enhancements, and collaboration with engineering teams to deliver high-quality software solutions.
Software Developer CACI International IncSoftware DeveloperColumbia, MD$103,800–$218,100 / yearProvides 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 develop, maintain, and enhance 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 Developer Leidos Holdings IncSenior Software DeveloperGaithersburg, MD$107,900–$195,050 / yearAAC is part of the FAA's broader initiative to modernize legacy flight service systems, replacing aging infrastructure with a scalable, cloud-based platform designed to improve safety and operational efficiency-particularly in remote and high-dependency aviation environments like Alaska. Leidos is seeking Senior Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of the Alaska Automation Capability (AAC).
Lead Software Developer Leidos Holdings IncLead Software DeveloperGaithersburg, MD$87,100–$157,450 / yearAAC is part of the FAA's broader initiative to modernize legacy flight service systems, replacing aging infrastructure with a scalable, cloud-based platform designed to improve safety and operational efficiency-particularly in remote and high-dependency aviation environments like Alaska. Leidos is seeking Lead Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of the Alaska Automation Capability (AAC).
Software Developer Leidos Holdings IncSoftware DeveloperGaithersburg, MD$69,550–$125,725 / yearThe Terminal Flight Data Management (TFDM) program is a Federal Aviation Administrations (FAA) NextGen program based on airport surface management that provides efficiency for both the airport surface and terminal airspace by providing a new and comprehensive integrated surface traffic control and management system. TFDM functions include Surface Collaborative Decision making (SCDM), departure scheduler and other airport decision tools Electronic Flight Data (EFD); Enhanced Air Traffic Control Tower (ATCT) Traffic Flow Management System (TFMS) Replacement or integration of multiple systems in the National Airspace System (NAS).
Principal Software Developer Leidos Holdings IncPrincipal Software DeveloperGaithersburg, MD$131,300–$237,350 / yearAAC is part of the FAA's broader initiative to modernize legacy flight service systems, replacing aging infrastructure with a scalable, cloud-based platform designed to improve safety and operational efficiency-particularly in remote and high-dependency aviation environments like Alaska. Leidos is seeking Principal Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of the Alaska Automation Capability (AAC).