Principal AI & Machine Learning Engineer - U.S. Based Hybrid Opportunity Common AppPrincipal AI & Machine Learning Engineer - U.S. Based Hybrid OpportunityArlington, VA$144,160–$162,180 / yearThe Principal Artificial Intelligence (AI) & Machine Learning (ML) Engineer is the technical leader responsible for embedding artificial intelligence into enterprise workflows and analytic processes to drive measurable gains in productivity, insight generation, and decision support within the Data Analytics & Research (DAR) division. Reporting to the Senior Director, Analytics Engineering, the Principal AI/ML Engineer partners closely with Data Engineering, Data Governance, and cross-functional business stakeholders to ensure that AI solutions are scalable, secure, compliant, and aligned with enterprise data strategy.
Principal Consultant - FirstNet Oracle CorpPrincipal Consultant - FirstNetDC$71,200–$158,200 / yearWe are looking for an experienced Consultant to help design, build/configure, activate, and support the implementation of Oracle Health EHR (Millennium) solutions across Federal agencies including the Department of Defense, United States Coast Guard, Veterans Affairs and Indian Health Service. Basic Qualifications: At least 3+ years total combined related work experience and completed higher education, including: At least 2 years healthcare information technology (HCIT) consulting, HCIT support and/or other client-facing or information technology (IT) solution work experience.
Principal Cloud Engineer Meso Scale Diagnostics LLCPrincipal Cloud EngineerMD$116,600–$177,800 / yearPartner with Cybersecurity on cloud security engineering: IAM, KMS encryption, secrets management, GuardDuty, Security Hub, AWS Config, vulnerability management, and SIEM (SIEMonster/Wazuh) integration; lead remediation of cloud security findings. Strong cloud security engineering knowledge: IAM design at scale, KMS and secrets management, GuardDuty/Security Hub/AWS Config, vulnerability management, and integration with enterprise SIEM platforms (Wazuh, Splunk, Sentinel, or comparable).
Principal Threat Surface Analyst - Remote or Hybrid in MN or DC UnitedHealth Group IncPrincipal Threat Surface Analyst - Remote or Hybrid in MN or DCWashington, DCRemote$112,700–$193,200 / yearThe fraudulent LinkedIn messages and emails, which do not originate from any Executives LinkedIn account or of UnitedHealth Group's email domains, or those of any of its operating divisions, supposedly conducts an interview via a Zoom meeting, offers a work from home job at Optum, emails an application, sends a fake check by next day delivery through USPS and asks recipients to pay a vendor a large dollar amount. Experience implementing and supporting enterprise endpoint platforms such as: Microsoft Defender for Endpoint, Trend Micro, CrowdStrike, SentinelOne, Carbon Black.
Consultant, Senior Principal ABS Group of Companies IncConsultant, Senior PrincipalWashington, DCRemote$150,000–$160,000 / yearAbility to actively listen to the needs of our clients by receiving shared information and determine context of the information provided and generating probing questions to better understand, retaining the information for future access, engaging with sales team on potential opportunities, suggesting solutions to sales team, and responding with proposed solutions. Ability to utilize established rapport and role as a subject matter expert with existing clients to facilitate development of new business through identifying and consistently generating new business opportunities.
Principal Developer TeamcenterX Meso Scale Diagnostics LLCPrincipal Developer TeamcenterXMD$116,600–$177,800 / yearThe position owns the technical architecture for server-side customization (ITK, SOA, custom handlers), codeful BMIDE extensions, Active Workspace Client (AWC) customization, and integrations connecting Teamcenter with JD Edwards ERP, CAD systems, manufacturing systems, and downstream consumers across MSD's digital thread. Architect integrations between Teamcenter X and downstream/upstream systems (JD Edwards ERP, MES, CAD, quality systems, middleware) using T4S, T4EA, SOA, REST, and message-based patterns; own end-to-end integration design across the MSD digital thread.
Sr Principal Architect - Architecture Practice - Remote National Railroad Passenger CorpSr Principal Architect - Architecture Practice - RemoteWashington, DCRemote$149,400–$193,644 / hourOur values of 'Do the Right Thing, Excel Together and Put Customers First' are at the heart of what matters most to us, and our Core Capabilities, 'Building Trust, Accountability, Effective Communication, Customer Focus, and Proactive Safety & Security' are what every employee needs to know and do to be most impactful at Amtrak. Strong expertise in architectural practices: Architectural Decision Records, Build vs Buy analysis, Business Capability Maps, Value-Stream Analysis, Solution Architecture work products, Architecture Governance.
Consultant, Senior Principal (Cybersecurity) ABS Group of CompaniesConsultant, Senior Principal (Cybersecurity)Washington, DCRemote$150,000–$190,000 / yearAbility to actively listen to the needs of our clients by receiving shared information and determine context of the information provided and generating probing questions to better understand, retaining the information for future access, engaging with sales team on potential opportunities, suggesting solutions to sales team, and responding with proposed solutions. Ability to utilize established rapport and role as a subject matter expert with existing clients to facilitate development of new business through identifying and consistently generating new business opportunities.
Principal Network Evaluator MarkonPrincipal Network EvaluatorAnnapolis Junction, Maryland$120,000–$225,000 / yearFull timeResponsibilities: Mission Focus: Conduct proactive computer network defense activities by analyzing systems and networks to identify vulnerabilities, detect network intrusions, monitor security events, assess attack surfaces, and develop operational courses of action to mitigate cyber threats. Knowledge of Network Defense Integrity (NDI) Methodology, digital forensics, intrusion detection systems, vulnerability scanning technologies, MITRE ATT&CK, NIST cybersecurity frameworks, and scripting languages.
Sr. / Principal Welding Process Engineer Hydrasearch Company LLCSr. / Principal Welding Process EngineerStevensville, MD$116,000–$156,000 / yearPart timeDesign for Weldability: Provide early technical input to development teams to ensure manufacturability and prevent late-stage rework. To that end, personal information will be collected solely for those legitimate business purposes recognized by law, and then maintained in a manner consistent with all applicable laws and regulations pertaining to document retention requirements.
Principal Engineer - Digital AI, Consumer TIC UL Solutions IncPrincipal Engineer - Digital AI, Consumer TICWashington, DC$155,000–$175,000 / yearDemonstrated ability to evaluate and test AI systems and identify failure modes, risks, and control gaps, including model performance, transparency, traceability, explainability, reliability, robustness, human-in-the-loop controls, fairness and bias, privacy, security, accountability, and operational resilience. 15+ years of technical experience in software platforms, cloud systems, AI/ML systems, cybersecurity, technology risk, model lifecycle management, digital assurance, or related technology domains, including 5+ years of direct experience working with AI technologies.
Sr. Principal Technical Program Manager, End-To-End Data Center Delivery OracleSr. Principal Technical Program Manager, End-To-End Data Center DeliveryVA, VAOracle Cloud Infrastructure is seeking a highly technical Senior Principal Technical Program Manager to lead end-to-end delivery of hyperscale data center capacity-from site strategy through customer-ready compute and GPU capacity, operational handover, and production go-live. The role operates with broad autonomy, resolves high-impact technical and commercial tradeoffs, and aligns senior leaders and external partners around capacity commitments.
Principal FPGA Designer – TeraWave Blue OriginPrincipal FPGA Designer – TeraWaveWashingtonand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.
Principal Project Mgr - 90360099 - Washington National Railroad Passenger CorpPrincipal Project Mgr - 90360099 - WashingtonWashington, DC$113,200–$146,664 / hourOur values of 'Do the Right Thing, Excel Together and Put Customers First' are at the heart of what matters most to us, and our Core Capabilities, 'Building Trust, Accountability, Effective Communication, Customer Focus, and Proactive Safety & Security' are what every employee needs to know and do to be most impactful at Amtrak. In accordance with DOT regulations (49 CFR § 40.25), Amtrak is required to obtain prior drug and alcohol testing records for applicants/employees intending to perform safety-sensitive duties for covered Department of Transportation positions.
Senior Principal Solutions Architect - PLM & Digital Thred Meso Scale Diagnostics LLCSenior Principal Solutions Architect - PLM & Digital ThredRockville, MDPOSITION SUMMARY: The Senior Principal Solutions Architect - PLM & Digital Thread serves as MSDs enterprise authority for Product Lifecycle Management (PLM), Digital Thread, Product Data Model Management, and Digital Thread initiatives. Familiarity with digital thread concepts: Production configuration management, routers, BOM lifecycle management, document management, change management and closed-loop quality integration across enterprise systems preferred.
NewPrincipal Value Management Specialist - 90414945 National Railroad Passenger CorpPrincipal Value Management Specialist - 90414945DC$124,600–$161,352 / hourOur values of 'Do the Right Thing, Excel Together and Put Customers First' are at the heart of what matters most to us, and our Core Capabilities, 'Building Trust, Accountability, Effective Communication, Customer Focus, and Proactive Safety & Security' are what every employee needs to know and do to be most impactful at Amtrak. This role coaches VMO stakeholders, leadership across business and technology on LPM, and identifies how to leverage key principles of LPM to solve real problems facing delivery teams, business teams, or their processes.
Principal Analytic Software Engineer GliaCell TechnologiesPrincipal Analytic Software EngineerLaurel, MD$200,000–$280,000 / yearWe 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.
Principal Software Engineer Ts/Sci Polygraph Leidos Holdings Inc.Principal Software Engineer Ts/Sci PolygraphHanover, MD$154,050–$278,475 / yearOur 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. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Data Scientist, Principal (Senior Software Developer; Systems Software) Avid Technology Professionals LLCData Scientist, Principal (Senior Software Developer; Systems Software)Columbia, MDExposure to AWS (Amazon Web Services), Cisco (CCNA), and/or STIGs/IAVA, Big Data Platform (BDP). Bachelor's degree in relevant field and 8 years of experience; an advanced degree will be considered in lieu of years of experience.
Senior Principal Data Scientist / AI-ML SME (Analytic Superiority) Leidos Holdings IncSenior Principal Data Scientist / AI-ML SME (Analytic Superiority)Fort Meade, MD$154,050–$278,475 / yearAutonomous Cyber Integration: Connect intelligent agents directly into security orchestration platforms (e.g., Palo Alto Cortex XSIAM/XSOAR) to trigger automated network defense actions and ingest massive, real-time PCAP and telemetry streams via Apache Kafka/Spark. Dual-Spectrum Operations: Proven capability to support both Defensive Cyber Operations (DCO) (log parsing, behavioral threat hunting, anomaly detection) and Offensive Cyber Operations (OCO) (automated vulnerability discovery, exploit generation, payload optimization).