Jobs at Leidos

Lead systems administration and IT support across secure Linux and Windows environments. Manage servers, storage, virtualization, cloud infrastructure, patching, hardening, automation, backups, and disaster recovery. Troubleshoot complex hardware, software, and user issues; monitor performance; maintain documentation and configuration baselines; and support compliance, incident response, and modernization efforts. Collaborate with cybersecurity, networking, DevOps, software engineering, and customer teams in classified mission environments while covering either morning or evening shifts.

Supports Tier III operations and maintenance for customer LAN and WAN networks. Responsibilities include monitoring performance, troubleshooting incidents, configuring routers, switches, firewalls, and network software, implementing routing and firewall changes, optimizing topologies, documenting configurations, analyzing network traffic, coordinating implementations, and resolving after-hours incidents. The role also supports compliance, configuration management, reporting, and occasional COMSEC responsibilities.

Designs, documents, tests, secures, and transitions global CAN/LAN networks for a government customer. Responsibilities include developing network architectures and configurations, testing technologies in a private lab, migrating legacy infrastructure, troubleshooting routing and switching issues, supporting operations teams, aligning designs with DISA STIGs, obtaining ATOs, and supervising network support specialists. The role may also involve MPLS WANs, firewalls, network management tools, and process improvement.

Senior Tier III O&M engineer responsible for administering and troubleshooting LAN/WAN networks, performing tier-3 incident resolution, configuring routers, switches, and firewalls, monitoring performance, maintaining network documentation, coordinating changes, and ensuring compliance with DoD/IA standards. May handle COMSEC tasks and after-hours on-call support.

Design and document CAN/LAN solutions, build BOMs and configs, test changes in a lab, schedule migrations, support operations troubleshooting, develop secure DISA STIG-compliant designs and obtain ATOs, supervise network specialists, and improve design processes. Opportunity to work with MPLS WANs.

The Network Design Engineer will modernize networks, support transitions, design secure networks, supervise specialists, and evaluate technologies while ensuring compliance with security standards.

Develop and deploy mission-critical, containerized Java and C++ software for missile defense systems. Perform design, code reviews, system integration, demonstrations, and coordinate with systems engineering and stakeholders to deliver validated capabilities.

The Network Implementation Engineer designs, tests, and implements network systems while providing technical support and ensuring secure configurations compliant with industry standards.

Build and deploy agentic AI, machine learning, and generative AI solutions across distributed and cloud environments. Develop LLM features including RAG, summarization, embeddings, and prompt-engineered workflows. Evaluate model quality, hallucinations, grounding, and production performance. Use Python and SQL to develop models, collaborate with technical and business teams, and manage end-to-end AI/ML projects from data preparation through deployment and monitoring.

Provides ServiceNow engineering and administration support for TSA’s FOCUS program. Configures workflows, integrations, dashboards, reports, CMDB, service mapping, and ITSM/ITOM processes. Troubleshoots platform issues, develops automation, supports testing and deployments, improves service management workflows, analyzes operational data, and maintains technical documentation while coordinating with government and contractor stakeholders.

Supports NASA’s RISCS cybersecurity application by triaging tickets, assisting users, monitoring system environments and data feeds, supporting change-request governance, conducting testing, and maintaining operational guides, training materials, reports, meeting content, and website updates. The role requires application troubleshooting, Tier 1 technical support, ticket escalation, customer communication, after-hours availability, and the ability to obtain Public Trust clearance.

Manage the full lifecycle of TSA IT hardware and software assets, including inventory, issuance, movement, returns, reconciliation, configuration records, chain-of-custody, and disposition. Coordinate with technical, logistics, facilities, project, and property teams. Maintain audit-ready documentation, produce asset metrics and reports, resolve discrepancies, support licensing compliance, and improve asset management processes. The role may involve onsite support and physical inventory activities across TSA locations.

Updates, edits, formats, and organizes technical manuals, maintenance procedures, and system administration guides. Maintains document libraries, enforces configuration control and version-tracking workflows, applies advanced Microsoft Word formatting, and audits documents for consistency, clarity, and accuracy. The role supports aviation automation initiatives and requires coordination with engineering and configuration management teams.

Build and maintain secure CI/CD pipelines, hardened Kubernetes environments, and automated compliance controls for Navy and DoD deployments. Responsibilities include Infrastructure as Code, GitOps, SBOM generation, vulnerability scanning, DISA STIG compliance, secrets management, ATO evidence automation, and deployment infrastructure across cloud and air-gapped environments. The engineer partners with software and security teams, contributes to application development, uses AI tools to improve workflows, and maintains operational documentation.

Leads security accreditation and authorization activities for information systems, including RMF implementation, security control assessments, risk assessments, authorization packages, POA&M management, vulnerability management, continuous monitoring, compliance reporting, and audit support. Collaborates with system owners and engineers to implement controls and maintain compliance with NIST, FISMA, FedRAMP, and related cybersecurity requirements.

Supports financial control for multiple IT contracts by monitoring actuals and performance, analyzing plan-versus-actual variances, reviewing invoices, tracking accounts receivable, preparing quarterly financial status reviews and forecasts, and producing ad hoc reports. Serves as a liaison among project management, finance, line management, and customers while identifying issues and supporting problem resolution.

Lead administration, configuration, integration, deployment, maintenance, and production support for the enterprise MES platform. Troubleshoot application, database, performance, configuration, and integration issues; perform root-cause analysis; coordinate upgrades and releases; and ensure system reliability, security alignment, scalability, and supportability. Collaborate with manufacturing, engineering, supply chain, infrastructure, cybersecurity, database, suppliers, and business teams while mentoring technical staff and improving automation and monitoring.

Leads finance and business operations for a $300M enterprise science division, managing program finance analysts and supporting financial performance. Oversees forecasting, FP&A, budgeting, cost management, contractual compliance, proposal support, financial modeling, month-end close, variance analysis, and operational risk assessment. Partners with business development, capture, pricing, and executive teams on growth strategy, cost reviews, cash flows, and business recommendations.

The Compensation Partner advises leaders and HR stakeholders on compensation philosophy, pay administration, incentives, job architecture, market analysis, FLSA compliance, and regulatory requirements. The role evaluates salary and bonus requests, analyzes pay equity and workforce trends, prepares leadership presentations, and implements compensation programs and initiatives. It requires strong analytical, communication, judgment, and consultative partnering skills, along with extensive compensation experience and knowledge of HR systems.

Designs and implements secure, scalable Microsoft Azure platforms for mission-critical applications in U.S. Government environments. Builds landing zones, infrastructure-as-code, networking, identity, deployment automation, monitoring, integrations, and reusable architecture patterns. Partners with cybersecurity and RMF teams on authorization, security boundaries, inherited controls, and ATO requirements. Leads troubleshooting, production readiness, resiliency, recovery, cost planning, and technical mentoring across engineering and DevSecOps teams.