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.
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.
Oshkosh CorpPrincipal Engineer - Robotics Oshkosh CorpPrincipal Engineer - RoboticsFrederick, MD$91,500–$148,100 / yearHowever, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with Oshkosh Corporation's legal duty to furnish information. The Principal Engineer-Robotics will provide lead engineering support efforts for active safety, advanced driver assistance systems and unmanned ground vehicles system and subsystem design projects involving broad design assignments of considerable scope and complexity.
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.
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.
Science Applications International CorpNewSenior Principal Software Engineer Science Applications International CorpSenior Principal Software EngineerPatuxent River, MD$160,001–$200,000 / yearThe software engineer will work as part of the PMA-275 government Software Integrated Product Team (IPT) responsible for modifying aircraft and ground system software to correct defects, implement new capability, and improve aircraft readiness and maintainability. REQUIREMENTS: Bachelors in Computer Science, Mathematics, Electrical Engineering, Aerospace Engineering, or similar discipline and fourteen (14) years or more experience; Masters and twelve (12) years or more experience; PhD or JD and nine (9) years or more experience.
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.
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.
Northrop Grumman CorpPrincipal/Sr. Principal RF Hardware Subsystem Integration and Test Engineer (Evergreen) Northrop Grumman CorpPrincipal/Sr. Principal RF Hardware Subsystem Integration and Test Engineer (Evergreen)Baltimore, MD$108,800–$163,200 / yearExhibit proficiency in near field or compact antenna test ranges on tasks including antenna range integration, test, data collection, data analysis, and system integration Exhibit proficiency with RF test equipment including network analyzers, signal generators, spectrum analyzers, and oscilloscopes Ability to develop highly novel solutions to a broad variety of RF/Microwave design and test related problems of complex difficulty which require the regular use of ingenuity and creativity Established subject matter expertise in numerous areas of RF/Microwave discipline including but not limited to: Antenna, RF performance analysis, RF test verification, and production test support Exhibit proficiency in electrical and mechanical troubleshooting Exhibit proficiency in software scripting and debugging in MATLAB, Visual Basic, and C++ Exhibit general aptitude in antenna range scheduling, staffing, technical team leadership, requirements, prioritization, time management, team building, work dissemination, planning, and early identification of issues Ability to design, implement, install and maintain electrical systems. Ability to obtain a SAP Clearance Expert user of both near-field and compact antenna test ranges Expert user of NSI-MI Technology antenna range test systems Expert user of MATLAB for post-processing antenna range test data.
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.
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.
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.
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.
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.
Northrop Grumman CorpNewSr. Principal Chief Engineer/Hardware IPT Lead Northrop Grumman CorpSr. Principal Chief Engineer/Hardware IPT LeadBaltimore, MD$135,800–$203,600 / yearLead engineering teams to define changes to hardware or hardware test sets (specifically Near Field Ranges and Far Field Ranges) to allow for increased production capacity and throughput. What You'll Get To Do: This individual will serve as a Hardware IPT Lead, leading a cross-discipline engineering team typically greater than 5 people for a low to medium risk project and interface with Engineering & Program Management, Manufacturing, Supply Chain, and Mission Assurance.
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.
Leidos Holdings IncPrincipal Software Engineer Leidos Holdings IncPrincipal Software EngineerBethesda, MD$131,300–$237,350 / yearSupport the Agile software development lifecycle following SAFe practices, using industry leading DevOps tools like GitHub, Jenkins, Unix bash scripting and leveraging tools such as JIRA and Confluence to track activities. Based in a DevOps framework, this role participates in and/or directs major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing.
Raft Company WebsiteNewPrincipal Software Engineer, Field Engineering Raft Company WebsitePrincipal Software Engineer, Field EngineeringAberdeen Proving Ground, MD$160,000–$220,000 / yearWe are looking for an experienced Principal Software Engineer to be embedded with our Army customers at Aberdeen Proving Ground, serving as Raft's senior technical presence on the ground: someone who can write production code in the morning, troubleshoot a Kubernetes deployment in a SCIF in the afternoon, and brief a program office on fielding status before end of day. You will partner closely with Raft's product, platform, and delivery teams to ensure our products are fielded well: installed cleanly, integrated with Army data sources and mission systems, observable in production, and easy for operators and downstream developers to use.
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.).
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.
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.
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.
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.
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.