Senior Software Engineer (ML) Bigbear.aiSenior Software Engineer (ML)Columbia, MarylandFull timeThe software engineer will work closely with data scientists and end users to develop innovative analytic tools to further discovery and tradecraft around critical global challenges, then deliver innovative solutions focused on operationalizing data science. Customers and partners rely on Bigbear.ai’s predictive analytics capabilities in highly complex, distributed, mission-based operating environments.
Sr Firewall Engineer MGM Resorts InternationalSr Firewall EngineerMD$100,800–$134,300 / yearLead complex incident response and root cause analysis for application-layer network security issues, driving continuous improvement and enhancing vendor governance to ensure quality and cost-effective outcomes. Collaborate with business and technical teams to ensure network security initiatives support broader business goals, while leading continuous improvement efforts focused on cost, scalability, supportability, and performance.
Senior Software Engineer - FFLL-8808 Innovative Systems & SolutionsSenior Software Engineer - FFLL-8808Annapolis Junction, MarylandThe Senior 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 trade-offs, software reuse, use ofCommercial 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.
Senior Software Engineer - FFPP-8803 Innovative Systems & SolutionsSenior Software Engineer - FFPP-8803Annapolis 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 Recruiter AeroVironment IncSenior RecruiterAnnapolis Junction, MD$89,000–$135,750 / yearManages full life-cycle recruitment including setting search strategy, actively sourcing candidates, and pre-screening, interviewing and presenting qualified candidates to hiring managers. In order to comply with the requirements of the ITAR and/or the EAR, applicants must qualify as a U.S. person under the ITAR and the EAR, or a person to be approved for an export license by the governing agency whose technology comes under its jurisdiction.
Senior System/Network Administrator – Systems Integration LeidosSenior System/Network Administrator – Systems IntegrationLaurel, MarylandYou will administer Linux, UNIX, and Windows environments; build and maintain virtual and storage environments; configure network components; resolve complex technical problems; and support reliable day-to-day infrastructure operations. August 24, 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 System Administrator ClearEdgeSenior System AdministratorLinthicum, MDThis position is ideal for an experienced system administrator who is comfortable working at the command line, enjoys maintaining stable systems, and values operational excellence. In this role, you will be responsible for maintaining system health, applying updates, supporting cloud-based infrastructure, and ensuring systems remain reliable, compliant, and operational.
Sr. Oracle DBA with TS/SCI Polygraph LeidosSr. Oracle DBA with TS/SCI PolygraphAnnapolis Junction, Maryland$154,050–$278,475 / yearThe selected individual will evaluate and recommend available database management system products; perform database and software lifecycle activities to ensure the highest level of system performance, availability, and compliance with business requirements; and will organize and format data for efficient query and storage processes. Translate requirements and data into usable database schemas by creating or recreating ad hoc queries, scripts and macros, making updates to existing queries, and creating new queries to manipulate data into a master file.
Sr. Manual Test Engineer TS/SCI Polygraph LeidosSr. Manual Test Engineer TS/SCI PolygraphAnnapolis Junction, MarylandThe selected candidate will perform component, integration, and system level testing by writing and executing system-level test procedures, evaluating changes made to software applications, and verifying defect corrective actions discovered during development, testing, and/or operational use. Our 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.
Senior DevOps Engineer 25k Sign On Bonus LeidosSenior DevOps Engineer 25k Sign On BonusColumbia, MarylandSeptember 21, 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. Our 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.
Senior Software Configuration Manager LeidosSenior Software Configuration ManagerAnnapolis Junction, Maryland$131,300–$237,350 / yearMust have excellent interpersonal skills, with the ability to build effective working relationships and interface professionally with peers and leadership, including developers, engineers, testers, customer points of contact, and company management. Our 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.
Senior DevOps Engineer 25k Sign on Bonus LeidosSenior DevOps Engineer 25k Sign on BonusAnnapolis Junction, MarylandAugust 20, 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. Our 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.
Sr. Manual Test Engineer TS/SCI Poly LeidosSr. Manual Test Engineer TS/SCI PolyAnnapolis Junction, MarylandMust have experience participating in formal test events (Acceptance Test, User Acceptance Test, Software Final Release Test, Maintenance Release Test, etc.); demonstrated experience developing and executing formal system tests to verify compliance with customer requirements; experience collaborating with software developers to create formal test procedures. The selected candidate will perform component, integration, and system level testing by writing and executing system-level test procedures, evaluating changes made to software applications, and verifying defect corrective actions discovered during development, testing, and/or operational use.
Senior Software Engineer LeidosSenior Software EngineerLaurel, MarylandAs a Senior Software Engineer, you will bring advanced technical judgment to those challenges—developing and integrating software, solving complex performance problems, improving engineering practices, and helping ensure software teams deliver reliable capabilities into operational environments. Working knowledge of project data-flow technologies, including Niagrafiles, low-latency message transport, smart-collection systems, site-specific distribution management, and relevant protocols.
Senior Linux Systems Administrator - Quality Assurance LeidosSenior Linux Systems Administrator - Quality AssuranceLaurel, MarylandThe Leidos Intel Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support Intelligence Community customers as they address evolving national security challenges. As a Senior Linux Systems Administrator – Quality Assurance, you will leverage your experience to resolve complex operational issues, improve Linux platform reliability, and ensure systems remain ready to support testing, deployment, and mission execution.
Senior Windows Systems Administrator BAE Systems PlcSenior Windows Systems AdministratorAnnapolis Junction, MD$146,670–$249,330 / yearAbout BAE Systems Intelligence & Security BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Infrastructure Oversight: Monitor and optimize a sophisticated ecosystem comprising VMware server hosts, Windows and Linux guest servers, and Virtual Desktop Infrastructure (VDI).
Senior Manager, Insurance and Claims Advocacy Sun LifeSenior Manager, Insurance and Claims AdvocacyBaltimore, Maryland$76,200–$114,300 / yearThrough employers, industry partners and government programs, Sun Life U.S. offers a portfolio of benefits and services, including dental, vision, disability, absence management, life, supplemental health, medical stop-loss insurance, and healthcare navigation. You will set the vision, drive operational excellence, build scalable processes, and deliver measurable financial and experience outcomes—serving as the final escalation point for sensitive cases and establishing best practices across the organization.
Senior DevOps Engineer LeidosSenior DevOps EngineerGaithersburg, MD$131,300–$237,350 / yearYou will work closely with a multi-disciplinary team of engineers, architects, developers, software integrators, and system administrators on the following key tasks: Deploy, triage and maintain a production big data pipeline using a microservice architecture running on Kubernetes, Elasticsearch backend, and Kafka messaging. You bring enthusiasm, the ability to work well with people from different disciplines with varying degrees of technical experience, and meet the following qualifications: BS in Engineering, Computer Science, Systems Engineering, or related field or equivalent experience with 12+ years in software development, system engineering or related field.
R-00192196 Senior Inventory Specialist/Logistician TS/SCI Poly LeidosR-00192196 Senior Inventory Specialist/Logistician TS/SCI PolyAnnapolis Junction, MarylandExperience managing multiple purchases simultaneously across various stages of the procurement process, including partial receipts, backorders, goods receipts, data transfers, BOM updates, purchase closeouts, and delivery tracking. Our 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.
Sr. Software Developer LeidosSr. Software DeveloperGaithersburg, MarylandJuly 13, 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. • Optimizing the experience for the flying public, Air Traffic Control, and the airline industry by improving the collaboration and decision-making capabilities of flight controllers.