OneMain FinancialNewPrincipal Cybersecurity Engineer- Architecture OneMain FinancialPrincipal Cybersecurity Engineer- ArchitectureBaltimore, MD$130,000–$156,000 / yearAlong with security platform mastery in more than one platform area (IDS/IPS, firewall/WAF, access and identity, malware defense, threat modeling, exposure management, among others), the Principal Cybersecurity Engineer is formally trained in enterprise IT design and architecture practices. The Principal Cybersecurity Engineer has a demonstrated mastery in multiple security and non-security technology platforms, with the ability to both lead and advise on the overall designs and strategies of both security and non-security technologies.
Constellation EnergyNewPrincipal Technical Sales Manager - Federal Engineer Projects Constellation EnergyPrincipal Technical Sales Manager - Federal Engineer ProjectsHalethorpe, MD$127,800–$142,000The Technical Sales Manager (TSM) provides building-systems knowledge & development/design expertise in support of sales efforts for Energy Efficiency focused Infrastructure Renewal and Building Upgrade & Improvement projects. Bachelor's degree in Mechanical Engineering and 8-years of project development or sales engineering experience developing facilities-based or building infrastructure projects or equivalent combination of education and relevant experience.
LeidosPrincipal Software Developer LeidosPrincipal Software DeveloperGaithersburg, MD$131,300–$237,350If 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. April 1, 2026For 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.
System OneCloud Security Engineer System OneCloud Security EngineerSalisbury, MD$126,000–$190,000 / yearSystem One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. You will work closely with DevOps, IT, and development teams to design and implement best practices for cloud security, threat detection, incident response, and compliance.
OneMain FinancialNewSoftware Engineering Manager - (Rails, Node, Angular, JavaScript) OneMain FinancialSoftware Engineering Manager - (Rails, Node, Angular, JavaScript)Baltimore, MD$110,000–$132,000 / yearIn this role, you will lead the team responsible for our shared application platform and its operational excellence—ensuring deployments run smoothly, environments remain stable, and cross-functional engineering teams are empowered to deliver with consistency and confidence. 8–10+ years of experience in software engineering, 3 or more years of progressive responsibility as an engineer on development teams directly responsible for building and delivering software-intensive systems.
Company ConfidentialPrincipal AI/ML Engineer - 27560 Company ConfidentialPrincipal AI/ML Engineer - 27560Annapolis Junction, MD$133,555–$175,000Full time7 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in realted field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 12 years relevant experience. HII, Mission Technologies has a need for an AI/ML Engineer who will be responsible for designing advanced model architectures, developing machine learning pipelines, and optimizing AI systems for operational deployment in government and mission critical environments.
Northrop Grumman CorpSr. Principal/Principal Engineer Propulsion Northrop Grumman CorpSr. Principal/Principal Engineer PropulsionElkton, MDPreferred Qualifications both levels: • Ability to lead a multi-disciplinary team through various efforts required to plan, design, fabricate and install multiple subsystems • Experience with complex electro-mechanical systems • Current active Security Clearance • Proficiency with Siemens NX • Proficiency with Siemens Teamcenter United Architecture • Knowledgeable in systems engineering approach to ensure program requirements are met • Experience as a Cost Account Manager (CAM) maintaining budgetary and schedule compliance, while ensuring technical quality • Familiar with proactive risk management techniques, such as risk registers and failure modes, effects and criticality analysis (FMECA). Basic Qualifications for Principal Engineer (level 3): • Requires Bachelors in Engineering & 5 years of experience or Masters Degree in Engineering & 3 years of experience or a PhD & one year of experience • Ability to obtain a Secret Clearance which requires US Citizenship as a pre-requisite • Ability and willingness to travel.
Russell Solutions GroupPrincipal Electrical Engineer Russell Solutions GroupPrincipal Electrical EngineerGermantown, MDJob Summary: We are looking for a Principal Electrical Engineer with 12+ years’ experience in design and development of Application Specific Integrated Circuits (ASIC) and micro-controller based embedded systems, specifically for battery powered medical devices. Building system architecture for sensor interface and connectivity to wearable and mobile devices using technologies such as near field communication (NFC) and Bluetooth.
Northrop Grumman CorpSpace RADAR Tasking Model - Principal/Sr Principal Engineer Systems Northrop Grumman CorpSpace RADAR Tasking Model - Principal/Sr Principal Engineer SystemsLinthicum, MD$105,400–$158,000 / yearThe above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidates experience, education, skills and current market conditions. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nations history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon.
Northrop Grumman CorpPrincipal/ Sr Principal Engineer Embedded Software Northrop Grumman CorpPrincipal/ Sr Principal Engineer Embedded SoftwareAnnapolis Junction, MD$110,300–$165,500 / yearPrincipal Crypto Software Engineer Basic Qualifications:Bachelor''s degree in Computer Engineering or another STEM discipline with 5 years of related experience, or Master''s degree with 3 years or a PhD with 1 year of experienceProficient in C/C++Crypto Experience: experience with Crypto Systems, familiarity/experience with developing HAIPE, OTNK and/or IKE, experience implementing cryptographic mechanisms using dedicated software librariesProficient in Object Oriented programmingProficient in all areas of the formal software lifecycle process from requirements to testingExperience integrating low-level firmware and software in complex real-time multi-threaded embedded applicationsExperience with developing and debugging embedded real-time systems. Proficient in C/C++Crypto Experience: experience with Crypto Systems, familiarity/experience with developing HAIPE, OTNK and/or IKE, experience implementing cryptographic mechanisms using dedicated software librariesProficient in Object Oriented programmingProficient in all areas of the formal software lifecycle process from requirements to testingExperience integrating low-level firmware and software in complex real-time multi-threaded embedded applicationsExperience with developing and debugging embedded real-time systems.
General Dynamics Mission Systems, IncSenior Principal Electrical-Optics Engineer General Dynamics Mission Systems, IncSenior Principal Electrical-Optics EngineerAnnapolis Junction, Maryland$202,197–$213,254 / yearThe breadth of these projects includes technologies for application in free-space optical (FSO) and fiber communications and sensors, photonic integrated circuits, active and passive optical remote sensing and imaging, microwave photonics, and quantum technologies. Company Overview: General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation.
RTX CorpPrincipal Systems Engineer (ONSITE) RTX CorpPrincipal Systems Engineer (ONSITE)Fulton, MDSolipsys is a wholly owned subsidiary of Collins Aerospace/RTX and is an industry leader in the development of command and control software systems and operates in a dynamic, complex, fast-paced business environment with both commercial and Government customers, including a mix of domestic and international pursuits and programs. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.
Northrop Grumman CorpRF/Digital Test & Principal RF/Digital Test Engineer 2nd shift Northrop Grumman CorpRF/Digital Test & Principal RF/Digital Test Engineer 2nd shiftBaltimore, MD$87,600–$131,400 / yearBasic Qualifications for the Principal RF/Digital Test and Development Engineer 3: Bachelor's degree in Electrical Engineering or related STEM field and a minimum of 5 years of relevant experience; or a Master's degree in Electrical Engineering or related STEM field and a minimum of 3 years of experience. Basic Qualifications for the RF/Digital Test and Development Engineer 2: Bachelor's degree in Electrical Engineering or related STEM field and a minimum of 2 years of relevant experience; or a Master's degree in Electrical Engineering or related STEM field and a minimum of 0 years of experience.
PeratonLead Principal Engineer PeratonLead Principal EngineerFort Meade, Maryland$176,000–$282,000 / yearResponsibilities: In this role, you will serve as Lead Principal Engineer for a Multi-Level Secure Voice and Video (MLSV2) program—a software and hardware integration effort to develop and operate a prototype secure conferencing system supporting multi-level voice, video, and chat for Senior National Leadership. You will initiate, plan, monitor, control, and report on a variety of small- to mid-level IT projects, applying deep technical and managerial expertise in advanced Multi-Level Secure Voice and Video, software, networking, information assurance, and cybersecurity.
Northrop Grumman CorpSpace Payload I&T - Engineer/Principal Engineer Northrop Grumman CorpSpace Payload I&T - Engineer/Principal EngineerLinthicum, MD$85,400–$128,000 / yearinclude I&T analysis and analysis tool development, coding/script development to analyze and interpret RF data for the purposes of debug/troubleshooting and system compliance assessment, support various test environments with different analysis needs, create/improve/operate custom SW tools during I&T and operational workflow. Basic Requirements: Level 2: BS in STEM (Science, Technology, Engineering, or Math) with 2 years relevant experience Level 3: BS in STEM (Science, Technology, Engineering, or Math) with 5 years relevant experience; or 3 years of relevant experience with MS degree.
Artech LLCJop Opportunity for RF Test and Development Engineer / Principal RF Test and Development Engineer Artech LLCJop Opportunity for RF Test and Development Engineer / Principal RF Test and Development EngineerBaltimore, MD$50–$55 / hourInterface cross-functionally with manufacturing, production engineering, design engineering, systems engineering, and program management teams. Bachelor’s degree in Electrical Engineering or related STEM field with 2+ years of relevant experience, OR Master’s degree with 0+ years of experience.
Peraton IncLead Principal Engineer Peraton IncLead Principal Engineerfort meade, MD$176,000–$282,000 / yearResponsibilities In this role, you will serve as Lead Principal Engineer for a Multi-Level Secure Voice and Video (MLSV2) program-a software and hardware integration effort to develop and operate a prototype secure conferencing system supporting multi-level voice, video, and chat for Senior National Leadership. You will initiate, plan, monitor, control, and report on a variety of small- to mid-level IT projects, applying deep technical and managerial expertise in advanced Multi-Level Secure Voice and Video, software, networking, information assurance, and cybersecurity.
EchoStarPrincipal Engineer I - Software EchoStarPrincipal Engineer I - SoftwareGermantown, MarylandSkills, Experience and Requirements: Requires: Bachelor’s degree in Computer Science, or a closely related field plus 5 years of experience in job offered, senior software engineer, or closely related role. Whether through research and development, technology innovation or solution engineering, our team members play a vital role in connecting consumers with the products and platforms of tomorrow.
Exponent IncPrincipal Structural or Architectural Engineer (MS/PhD) Exponent IncPrincipal Structural or Architectural Engineer (MS/PhD)Bowie, MD$181,000–$284,000 / yearD. in Civil Engineering, Structural Engineering, Architectural Engineering, or a related field Significant business development experience with a proven track record Licensure as a Professional Engineer (PE) or Structural Engineer (SE) in at least one state Ability to attract projects to support full-time staff and to manage and develop a group of highly motivated individuals Minimum of 10 years of experience in technical engineering and project management post-graduation An outstanding professional reputation with an existing client base Experience providing expert testimony in a dispute resolution setting Significant experience in construction claims, dispute resolution, and litigation services Experience in architectural engineering and building technology is a plus, but not required Experience drafting/reviewing analysis, reports, and presentations Effective leadership skills with the ability to positively interact with professionals, technical staff, and administrative staff Outstanding professional reputation and a record of publications Strong client base in similar market areas A dedication to quality and accuracy. You will be responsible for: Lead business generation and client development efforts Inspection, analysis, and determination of root causes of structural/building envelope performance failures Conducting projects and supervising others Analytical and computer problem-solving Leading field investigations and diagnostic surveys Preparing and presenting technical reports and complicated engineering assessments Continued professional development towards maintaining professional expertise Providing expert testimony where appropriate.
Verint Systems, Inc.Principal Engineer, Software Verint Systems, Inc.Principal Engineer, SoftwareAnnapolis, MDYou will operate at the intersection of hands-on engineering excellence and strategic technical leadership — contributing directly to complex features while shaping how the entire engineering organization builds, scales, and operates its software. + Cloud and Infrastructure: Deep hands-on experience with AWS or Azure including serverless compute, managed messaging (SQS/SNS/Service Bus), managed databases, and cost optimization.
INSPYR SolutionsPrincipal Software Engineer INSPYR SolutionsPrincipal Software EngineerMilford Mill, MD$70–$78 / hourImplementation of Graphical User Interface (GUI) using the presentation tier technologies such as AngularJS, ReactJS, Node JS, Type Script, JavaScript, JSP, HTML, CSS, XML, AJAX, and jQuery, Front end development using modern JavaScript and experience with ES13+ features, such as classes, arrow functions, template literals and modules. Demonstrate a strong understanding of the latest trends in Artificial Intelligence (AI) and showcase the ability to apply AI knowledge to enhance or redesign existing system architectures, identifying opportunities where AI-driven solutions can add value, improve efficiency, or enable new capabilities.
GliaCell TechnologiesPrincipal DevOps Engineer GliaCell TechnologiesPrincipal DevOps EngineerColumbia, MDFull timeWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. Terraform Expertise: Proven, hands-on experience writing, deploying, and managing production-grade infrastructure using Terraform, including deep knowledge of state management and modularity.
GliaCell TechnologiesPrincipal Systems Engineer GliaCell TechnologiesPrincipal Systems EngineerAnnapolis Junction, MDFull timeWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. A PhD in a Qualified Engineering Field or a related discipline from an accredited college or university plus eighteen (18) years of systems engineering experiencePossess Storage experience.
GliaCell TechnologiesPrincipal DevOps / Software Engineer GliaCell TechnologiesPrincipal DevOps / Software EngineerLaurel, MDFull timeWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. You will also contribute to the MI team as a software engineer and analytic developer where you will design, develop, and integrate solutions involving the analysis of large data sets to establish mission cognizance and deliver mission-centric insights.
GliaCell TechnologiesPrincipal Software Engineer GliaCell TechnologiesPrincipal Software EngineerAnnapolis Junction, MDFull timeWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. GliaCell’s Enterprise capabilities include Full-Stack Application Development, Big Data, Cloud Technologies, Analytics, Machine Learning, AI, and DevOps Containerization.
GliaCell TechnologiesPrincipal Cloud Systems Engineer GliaCell TechnologiesPrincipal Cloud Systems EngineerColumbia, MDFull timeWe are seeking an innovative and analytical Systems Engineer to join our research and development team focused on the future of cloud-native architectures, specifically Content Delivery Networks (CDNs). We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat.
AstrionRadar Modeling Engineer - Principal /SME AstrionRadar Modeling Engineer - Principal /SMEColumbia, Maryland$170,000–$190,000 / yearUnderstanding customer requirements, demonstrating the capability to customers and stakeholders, and potentially leading a team of engineers and software developers to design and develop these simulation solutions. Twenty (20) years of experience in the design of, or analysis of sensor systems, seekers, electronic warfare systems, or weapon systems.
Leidos Holdings IncPrincipal Software Engineer Leidos Holdings IncPrincipal Software EngineerAnnapolis Junction, MD$154,050–$278,475 / yearOriginal Posting: March 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.
IDS InternationalPrincipal‑Level Software Engineer (Java, Python) IDS InternationalPrincipal‑Level Software Engineer (Java, Python)Annapolis Junction, MDFull timeThe engineer will work closely with data scientists and end users to develop analytic tools that support discovery and tradecraft around critical global challenges and operationalize data science within customer environments. Combining operational expertise with an intimate understanding of today’s greatest challenges, we bring our customers the solutions required for success in a complex and multidimensional world.
GliaCell TechnologiesPrincipal Reverse Engineer GliaCell TechnologiesPrincipal Reverse EngineerLaurel, MDFull timePerform technical analysis of malicious binaries through controlled execution and/or static analysis of assembly code, overcoming techniques designed to defeat analysis, in order to ascertain functionality, capability, call-backs, assist with attribution to adversary infrastructure, and identification of indications or compromise. We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat.
GliaCell TechnologiesPrincipal AWS Software Engineer (Partial Telework) GliaCell TechnologiesPrincipal AWS Software Engineer (Partial Telework)Annapolis Junction, MDFull timeWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. GliaCell’s Enterprise capabilities include Full-Stack Application Development, Big Data, Cloud Technologies, Analytics, Machine Learning, AI, and DevOps Containerization.
GliaCell TechnologiesPrincipal Software Engineer (Partial Telework) GliaCell TechnologiesPrincipal Software Engineer (Partial Telework)Annapolis Junction, MDFull timeWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. GliaCell’s Enterprise capabilities include Full-Stack Application Development, Big Data, Cloud Technologies, Analytics, Machine Learning, AI, and DevOps Containerization.
GliaCell TechnologiesPrincipal Full Stack Software Engineer GliaCell TechnologiesPrincipal Full Stack Software EngineerLaurel, MDFull timeWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. You will be responsible for designing and delivering custom applications, providing data visualization, workflow automation, and mission cognizance for mission critical activities.
GliaCell TechnologiesPrincipal HPC Software Engineer GliaCell TechnologiesPrincipal HPC Software EngineerAnnapolis Junction, MDFull timeOr, a Master’s degree in Math, Computer Engineering, Computer Science, or related discipline from an accredited college or university, plus 5 years of experience as an HSE in programs and contracts of similar scope, type, and complexity. We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat.
GliaCell TechnologiesPrincipal Software Engineer (AI - Assisted Developer Tooling) GliaCell TechnologiesPrincipal Software Engineer (AI - Assisted Developer Tooling)Laurel, MDFull timeWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. The role emphasizes AI-assisted IDE capabilities, automated code quality workflows, and experimentation with agentic and autonomous systems to support software development tasks.
GliaCell TechnologiesPrincipal Full Stack Software Engineer (Partial Telework) GliaCell TechnologiesPrincipal Full Stack Software Engineer (Partial Telework)Annapolis Junction, MDFull timeCritical: Java threading, SpringBoot, JavaScript, JMS, MongoDB, AWS, Amazon RDS, REST, Docker, Kubernetes, ElasticSearch, Cockroach DB or other RDBMS at similar scale, COOP, Large scale distributed systems with high availability. We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat.
GliaCell TechnologiesPrincipal Test Engineer GliaCell TechnologiesPrincipal Test EngineerAnnapolis Junction, MDFull timeWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. Bachelor’s degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or related discipline from an accredited college or university is required.
GliaCell TechnologiesPrincipal Python Software Engineer (Partial Telework) GliaCell TechnologiesPrincipal Python Software Engineer (Partial Telework)Annapolis Junction, MDFull timeWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. GliaCell’s Enterprise capabilities include Full-Stack Application Development, Big Data, Cloud Technologies, Analytics, Machine Learning, AI, and DevOps Containerization.
Themis InsightPrincipal Systems Engineer (Terrestrial SIGINT) Themis InsightPrincipal Systems Engineer (Terrestrial SIGINT)Fort Meade, MDWork closely with government Systems Engineers to support the reengineering of the existing SIGINT ground architecture to facilitate the elimination of collection/processing stovepipes and replace the deprecated systems with collections/processing systems that support automation, dynamic tasking, multi-access cross-cueing and orchestration. As a Terrestrial SIGINT Systems Engineer, you will support a customer terrestrial sensors team in tracking, monitoring and facilitating planning for the deployment, upgrade, and replacement of Terrestrial SIGINT collection and processing systems.
Constellation Energy Generation, LLC.Principal Technical Sales Manager - Federal Engineer Projects Constellation Energy Generation, LLC.Principal Technical Sales Manager - Federal Engineer ProjectsBaltimore, MarylandThe Technical Sales Manager (TSM) provides building-systems knowledge & development/design expertise in support of sales efforts for Energy Efficiency focused Infrastructure Renewal and Building Upgrade & Improvement projects. Bachelor's degree in Mechanical Engineering and 8-years of project development or sales engineering experience developing facilities-based or building infrastructure projects; or equivalent combination of education and relevant experience.
Envision Innovative SolutionsPrincipal DevOps Engineer Envision Innovative SolutionsPrincipal DevOps EngineerAnnapolis Junction, MD$200,000–$220,000 / yearThere are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location, education and certifications as well as Federal Government Contract Labor categories. Architect and develop best; practices for software build tools (Gradle, Maven, ANT, Shell) and continuous integration tools (Jenkins, Bamboo), and infrastructure automation (Amazon Web Services, VMWare, Puppet, Chef, ansible, etc.).
Northrop Grumman CorpSenior Principal Mechanical Systems Engineer Northrop Grumman CorpSenior Principal Mechanical Systems EngineerAnnapolis, MD$135,800–$203,600 / yearExperience with underwater or naval systems-such as torpedoes, towed vehicles, Uncrewed Underwater Vehicles (UUVs), Remotely Operated Vehicles (ROVs), acoustic communications, sonar systems, and submarine interfacing-is highly valued, as the role will also include work on undersea-domain systems programs. The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidates experience, education, skills and current market conditions.
RTX CorpSenior Principal DevOps Lead Engineer (ONSITE) RTX CorpSenior Principal DevOps Lead Engineer (ONSITE)Fulton, MD$145,600–$276,800 / yearTypically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.
Intelliforce-IT Solutions GroupPrincipal Software Engineer Intelliforce-IT Solutions GroupPrincipal Software EngineerAnnapolis Junction, MDFull timeYou will lead the technical vision for a new capability, define what done looks like, and work closely with an Integrated Feature Team to carry the work across the full lifecycle. This is a strong fit for an engineer who likes solving hard problems, influencing system direction, and building software that has to perform in real operational environments.
Leidos Holdings IncPrincipal Data Engineer Leidos Holdings IncPrincipal Data EngineerBethesda, MD$131,300–$237,350 / yearOriginal Posting:January 29, 2026For 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.
Hydrasearch Company LLCSr. / Principal Hose Design Engineer Hydrasearch Company LLCSr. / Principal Hose Design EngineerStevensville, MD$116,000–$156,000 / yearPart timeThe Senior Principal Hose Design Engineer will work within a small, highly capable technical team executing rapid development cycles including design, prototype, validation, and transition to production. Internal Capability: Support the development of proprietary Hydrasearch hose constructions and internal testing capabilities to reduce dependency on external design authorities.
Envision Innovative SolutionsPrincipal Software Engineer Envision Innovative SolutionsPrincipal Software EngineerAnnapolis Junction, MD$215,000–$250,000 / yearThere are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location, education and certifications as well as Federal Government Contract Labor categories. Since 2008, we have supported critical national security programs by building high-performing engineering teams and developing innovative enterprise solutions.
Expert In Recruitment SolutionsPrincipal Software Engineer Expert In Recruitment SolutionsPrincipal Software EngineerWoodlawn, MD$65–$70 / hourImplementation of Graphical User Interface (GUI) using the presentation tier technologies such as AngularJS, ReactJS, Node JS, Type Script, JavaScript, JSP, HTML, CSS, XML, AJAX, and jQuery, Front end development using modern JavaScript and experience with ES13+ features, such as classes, arrow functions, template literals and modules. Develop the Data Access Layer (DAO) to interface the application with IBM DB2 9.0 and PostgreSQL databases running on z/OS mainframe and Linux operating systems and other platforms, utilizing JPA or Spring Data API for querying and retrieving data through Object Relational Mapping (ORM).
Hillis-CarnesPrincipal Geotechnical/CMT Engineer Hillis-CarnesPrincipal Geotechnical/CMT EngineerFrederick, MDDuties may include but are not limited to; general geotechnical engineering practice including the preparation of geotechnical reports/calculation, technical support of field staff, review of construction inspection daily field reports, and occasional project site field visits related to the projects you are involved in. Candidate will work with our geotechnical and materials testing/inspections departments and be responsible for a wide variety of projects for public and private sector clients.
Leidos Holdings IncPrincipal Information Systems Security Engineer Leidos Holdings IncPrincipal Information Systems Security EngineerLinthicum, MD$154,050–$278,475 / yearValidates and verifies system security requirements definitions and analysis and establishes system security designDesigns, develops, implements and/or integrates IA and security systems and system components including those for networking, computing and enclave environment to include those with multiple enclaves and with differing data protection/classification requirementsAssist architects and systems developers in the identification and implementation of appropriate information security functionality to ensure uniform application of Agency security policy and enterprise solutionsContributes to the security planning, assessment, risk analysis, risk management, certification and awareness activities for system and networking operationsReviews C&A documentation, providing feedback on completeness and compliance of its contentCLEARANCE REQUIRED: Active TS/SCI with polygraph. QualificationsBachelor of Science degree from an accredited university ideally in Computer Science, Information Assurance, Information Security System Engineering or related field with a minimum of 20 years of experience as an Information Systems Security Engineer (ISSE) or System Engineer on programs and/or contracts with the customer spaceCISSP - ISSEPStrong writing skillsConfidence and ability to present briefing to senior level DoD officials in both prepared briefings and/or in ad hoc discussions.