Jobs at Leidos

Design and architect full-stack embedded software solutions for airborne defense systems including tactical strike, sensors, CUAS, and UAS platforms. Responsibilities span embedded software architecture, code implementation, unit testing, and integration of distributed software modules across subsystems; leading technical design decisions within DevOps/CI/CD pipelines; developing software tools and test infrastructure; and mentoring junior engineers.…See more Requires 4–8 years of relevant experience, a bachelor's degree in a technical field, and ability to obtain a Secret security clearance.

A software engineer will join a small development team to participate across the full software development lifecycle—from requirements analysis through coding, testing, and documentation. The role emphasizes Java backend development (Spring, Hibernate, JPA) paired with React/JavaScript frontend work, RESTful APIs, and MySQL databases.…See more The engineer will conduct code reviews, write unit tests (JUnit), propose infrastructure improvements, and support production troubleshooting across distributed CONUS and OCONUS teams in varying time zones.

This role supports the Naval Undersea Warfare Center in planning and executing hardware and software integration within secure IT environments for unmanned underwater vehicle operations. The Systems Engineer will coordinate across technical teams, translate complex concepts into actionable documentation, manage the full system lifecycle from integration planning through deployment, and ensure alignment with cybersecurity and mission requirements.…See more Required qualifications include a bachelor's degree in IT/Engineering with 4+ years of relevant experience, an active TS/SCI clearance, DoD 8140 compliance (CompTIA Network+/Security+ or Cisco CCNA), 3+ years integrating hardware/software in networked IT environments, and 2+ years with AWS cloud services.

Senior Systems Engineer supporting complex maritime and naval defense programs. Will lead and coordinate engineering activities across multiple disciplines, translate customer operational needs into technical requirements, manage program schedules and risks, and guide engineering teams through systems architecture, integration, verification, and validation.…See more Requires 10+ years of systems engineering or naval engineering experience, strong stakeholder coordination across military and government leaders, and ability to manage technical scope, deliverables, and program artifacts.

Lead technical program execution for complex maritime and naval defense systems at Leidos, coordinating engineering activities across multiple disciplines and stakeholder organizations. Translate customer operational needs into technically sound engineering approaches, manage schedules, risks, and deliverables, and guide engineering teams through systems architecture, requirements analysis, integration, and verification.…See more Prepare technical briefings for senior military and government leadership, facilitate technical interchange meetings, and resolve technical and operational issues across engineers, subcontractors, fleet personnel, and government stakeholders. Requires 10+ years of progressively responsible experience in systems engineering, naval engineering, maritime operations, or technical program management in defense systems.

Software engineer supporting mission-critical systems across distributed CONUS and OCONUS teams. Responsible for full software development lifecycle including requirements analysis, Java/Spring backend development, React/JavaScript frontend work, unit testing, code review, and production troubleshooting.…See more Must have 4+ years experience (or equivalent degree combination), proficiency in Java, Spring, Hibernate, React, scripting languages, and Linux command line, with active TS/SCI clearance required.

Develop high-performance embedded software for custom system-on-chip hardware, working across DSP, ARM, and RISC-V microarchitectures in multi-core environments ranging from bare metal to Linux. Write low-level C code to interface with hardware components, validate performance under nominal and stress conditions, and build test plans and software requirements specifications using test-driven development methodologies.…See more Requires 4+ years of C/C++ embedded systems experience, strong understanding of hardware-software interaction and computer architecture, proficiency with version control and CI/CD tools, and active Secret-level security clearance with ability to obtain TS/SCI.

An embedded systems software engineer role designing, implementing, and optimizing C applications for real-time signal processing on custom SoCs. The engineer will port signal processing algorithms from MATLAB/Python/C++ to optimized C code, develop Hardware-in-the-loop tests, and work across multi-disciplinary teams of software engineers, systems engineers, hardware designers, and signal processing experts.…See more Requires 8+ years of C/C++ embedded systems development, strong signal processing fundamentals, and hands-on Linux development experience.

Software Engineer I will design, develop, and integrate maintainable software applications, data pipelines, and user interfaces using Python, with direct customer interaction to understand mission needs and translate operational objectives into technical requirements. Responsibilities include building REST APIs, web and desktop UIs, hardware integration, test automation, and supporting laboratory and field testing of prototype systems.…See more The role requires proficiency in Python, Git/GitHub, Linux command-line tools, REST API design, and experience with multi-component software integration and debugging.

Software Engineer at Leidos' Undersea Systems Division developing and testing uncrewed underwater vehicles (UUVs) for Naval Information Warfare Center, Pacific. Responsibilities include UUV operations software, sensor integration and control, behavior optimization, and platform-independent data processing tools.…See more Requires strong systems programming in Linux, Python, and C/C++; practical TCP networking and socket-level data transport; ROS2, CAN bus, UDP, and telemetry analysis experience. Role includes hands-on hardware/software bring-up, benchtop troubleshooting, sea-based testing, and occasional travel.

As a Systems Engineer, you will lead and coordinate engineering activities across multiple technical disciplines while supporting program planning, execution, and customer coordination for complex maritime and naval defense systems. You will translate customer operational needs into technically sound engineering approaches, manage technical scope and schedules, conduct requirements analysis and systems integration, and guide engineering teams through verification and validation.…See more You will prepare technical briefings, analyze technical and operational information to identify risks and opportunities, and provide technical leadership during surge activities, with frequent domestic and international travel required.

Senior Systems Engineer responsible for leading complex maritime and defense system engineering programs. Translates customer operational needs into technical requirements and engineering approaches, coordinates activities across multiple disciplines and stakeholder organizations, and manages program execution including schedules, risks, deliverables, and technical documentation.…See more Guides engineering teams through systems architecture, requirements analysis, systems integration, and verification/validation. Prepares technical briefings and decision presentations for senior military and government leadership.

The Technical Program Lead will support program execution and mission priorities by coordinating engineering activities across multiple technical disciplines and stakeholder organizations. The role involves translating customer operational needs into engineering approaches, managing schedules, risks, and deliverables, and guiding engineering teams through systems architecture, requirements analysis, and integration.…See more The candidate will facilitate technical interchanges, review engineering products for alignment with requirements, and prepare technical briefings for senior military and government leadership. This position requires a bachelor's degree in a technical discipline and at least 10 years of progressively responsible experience in systems engineering, naval engineering, or program management within defense or maritime systems.

Design, deploy, and maintain virtualized Linux training environments for Navy simulation systems, migrating workloads from tactical hardware platforms to KVM-based virtual infrastructure. Develop Python automation scripts and Ansible playbooks for system administration, testing, and deployment; configure and troubleshoot Open vSwitch networking, hardware passthrough (PCIe, VFIO, SR-IOV), and RHEL 7/8 environments.…See more Support performance optimization, cybersecurity compliance (STIG, RMF), and integration testing across hardware, OS, networking, and application layers.

Senior Software Architect responsible for designing, managing, and defending large-scale classified software systems while leading development teams and ensuring architectural flexibility and maintainability. The role requires 12+ years of experience designing integrated classified systems, 10+ years leading development teams, and expertise in secure systems architecture, code quality analysis, and CI/CD pipelines.…See more Responsibilities include overseeing team training, participating in technical discussions, managing architectural changes, and performing systems architecture activities in support of Agile/SCRUM teams.

Lead cybersecurity and compliance activities for classified DoD and Special Access Program Information Systems. Manage Risk Management Framework (RMF) authorization packages, security control assessments, and continuous monitoring.…See more Coordinate with Security Control Assessors, Authorizing Officials, and Program Security Officers to achieve and maintain authorization to operate (ATO). Evaluate vulnerabilities, security deficiencies, and risks while developing mitigation strategies in a fast-paced, regulated environment.

This UI/UX Engineer role focuses on designing mobile and touch-based user experiences for defense and intelligence applications. The designer will develop UX strategy across multiple platforms, create interactive prototypes using industry-standard tools (Sketch, Adobe Creative Suite, Pixate), and lead design execution for highly usable interfaces.…See more The role requires 8+ years of overall experience with 5+ years specifically in mobile UX design, lean UX processes, and UX research techniques, working closely with developers and engineers in an engineering-heavy environment.

Design, develop, and integrate Python-based software applications, data pipelines, REST APIs, and user interfaces for defense/mission-critical systems. Work directly with customers to translate operational requirements into technical solutions, support hardware integration and testing, and maintain comprehensive engineering documentation.…See more The role requires proficiency in Python, Git, Linux, and REST API design, with experience testing and debugging multi-component systems. Candidates should be comfortable presenting technical concepts to customers and collaborating within small engineering teams across the full software-development lifecycle.

Technical Lead responsible for managing IT enterprise operations, including computer/network support, incident response, and data spillage asset recovery on classified networks (NIPR/SIPR). Provide peer coaching and mentorship to technicians, troubleshoot hardware/software/networking issues, manage customer tickets to SLA, and support VIP/executive-level users.…See more Lead operational and training activities at the site with hands-on expertise in layer 1 networking, VoIP/VTC, and multi-function device troubleshooting.

Technical Lead responsible for managing IT operations, incident response, and Information Assurance across a 24/7 DoD environment. Provides technical coaching and mentorship to technicians while troubleshooting hardware, software, networking, VoIP, and VTC issues.…See more Manages NIPR/SIPR access, customer tickets per SLRs, and escalations to VIP/executive customers. Requires DoD Secret clearance, Security+ or higher certification, and 4+ years of IT operations experience.

Software engineer with 6+ years of backend development experience (or 4+ with a Master's degree) designing and optimizing high-performance algorithms for radar, optical, and infrared sensor systems. You'll work with a cross-disciplinary team to engineer scalable distributed systems, accelerate code on GPUs using CUDA, and integrate scientific codebases in Linux/Unix environments.…See more Strong expertise in C/C++, high-performance computing, MPI, parallel/distributed processing, and AI/ML algorithms is required, along with advanced mathematics or physics foundations and proven system-level problem-solving ability.

The Software Test Engineer will author and execute manual and automated test cases in an agile environment, ensuring product requirements and quality standards are met before code merges. Responsibilities include developing testing tools and techniques, participating in design reviews, documenting bugs and test results, and collaborating with product owners and developers.…See more The role requires 4–8 years of experience, proficiency in scripting languages (Python, JavaScript), familiarity with automated testing tools, and a DoD 8570 security certification within 90 days of hire.

This role develops web and mobile applications for cybersecurity and cryptographic key management systems serving defense/intelligence customers. The engineer will work full-stack (frontend, backend, persistence layer) in an Agile/Scrum environment, applying secure software development practices, Test-Driven Development, and clean coding principles (S.O.L.I.D).…See more Responsibilities include web service development, automated testing, CI/CD integration, and setting team standards for testing rigor and Agile practices.

Application Software Engineer role focused on full-stack web and mobile application development for cybersecurity and cryptographic key management systems. The engineer will develop web services, enterprise applications, and persistence layers using modern frameworks (React, Angular, Node.js) in an Agile Scrum environment.…See more Responsibilities include implementing secure software development practices, Test-Driven Development (TDD), continuous integration/testing automation, and collaborating with cross-functional teams including systems engineers, security engineers, and QA. Requires 4+ years of relevant experience, an active Secret clearance, and DoD 8570 security certification within 90 days of hire.

Sr. Systems Engineer supporting the Navy's Key Management project portfolio, responsible for leading system engineering, hardware, and software analysis to develop systems meeting customer requirements.…See more Will define and apply systems engineering processes, manage requirements (decomposition, allocation, verification, validation), develop system architecture and CONOPS, and produce comprehensive technical documentation including specifications, manuals, and design documents. Requires 8+ years of experience with model-based systems engineering, database management (MySQL, Oracle, SQL Server), Linux/UNIX, Agile methodologies, and DoD 8570-approved security certification. Will work at customer facilities up to 5 days/week, participating in customer meetings and technical interchange meetings.