1,449 Results for

Cleaning Jobs in Willow Grove, PA

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Principal Desktop Engineer T. Rowe Price

Owings Mills, Maryland

Blending hands-on technical depth with execution-focused leadership, the Principal serves as both a strategic partner to Workplace Experience Technology leadership and the highest technical escalation point for complex endpoint challenges — ensuring that strategy is realized through rigorous engineering, operational excellence, and measurable platform performance. Deliver Major Programs and Projects: Oversee large‑scale desktop initiatives such as OS migrations, hardware refreshes, enterprise software deployments, and new platform rollouts, coordinating across Security, Networking, Cloud, and Service Desk teams.

30+ days ago

Regional Geotechnical Principal Engineering Consulting Services Ltd

Hanover, MD

$125,000–$175,000 / year

ECS is currently ranked #60 in Engineering News-Record's Top 500 Design Firms (April 2026), #148 in Engineering News-Record's Top 200 Environmental Firms (October 2025) and #50 in Zweig Group's Hot Firm List (May 2025). The Geotechnical Principal serves as the highest level of technical leadership within the geotechnical practice, responsible for ensuring overall quality, performance, and strategic direction of projects and services.

30+ days ago

Building Enclosure Associate Principal Engineering Consulting Services Ltd

Hanover, MD

$105,000–$150,000 / year

ECS is currently ranked #60 in Engineering News-Record's Top 500 Design Firms (April 2026), #148 in Engineering News-Record's Top 200 Environmental Firms (October 2025) and #38 in Zweig Group's Hot Firm List (June 2026). You will work closely with clients and multidisciplinary project teams to evaluate building envelope performance, support construction quality, and deliver practical consulting solutions across a variety of facility types.

24 days ago

Principal FSW Engineer AST SpaceMobile

Maryland

This role is central to the design and development of our satellite fleet's Linux-based networking capabilities, with a specific focus on networking subsystems; general embedded computing knowledge is also crucial, since there are RTOS platforms in our stack that are not Linux. Own the networking subsystem architecture for satellite flight software, including protocol stack implementation, network driver development, and link-layer communication.

30+ days ago

Principal Signals Software Engineer Envision Innovative Solutions

Columbia, MD

$190,000–$215,000 / year

At least 12 years' experience as a Signals Software Engineer or equivalent on a project with a focus on Radio Frequency (RF) to include experience with Fourier transforms, filtering, communications theory, digital modulation, error control coding, signals analysis tools (e.g. There 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.

30+ days ago

Software Engineer (Principal) - FULLY CLEARED with POLYGRAPH REQUIRED Constellation Technologies

Annapolis Junction, Maryland

$150,000–$200,000 / year

The benefits package: • Affordable healthcare options with 80% employer paid premium PLUS a company-funded HSA • Comprehensive Dental insurance • Vision with 80% employer paid premium • Employer paid Life insurance 100% • Employer paid Short-term and Long-term disability 100% • Annual training, continued education, and professional memberships reimbursement • Unlimited access to Red Hat Enterprise Linux and AWS training and accreditation • Annual reimbursement for technology i.e. phones, computers, printers, etc. Python, JAVA, C++, JavaScript, Spark analytics, Jupyter Notebooks, GHOSTMACHINE, MapReduce Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position.

30+ days ago

SAP Principal Lead ST Engineering North America

Baltimore, MD

$135,000–$170,000 / year

A pioneer in the production and assembly of complex aerostructures including aircraft and rocket components, engine nacelle systems, thrust reversers and advanced composite products, we apply the latest digital technologies and automation in composite design and manufacturing that are second to none. The ideal candidate will bring deep end-to-end business process knowledge, proven consulting experience, and exposure to Digital Manufacturing and MES (Manufacturing Execution Systems) to support smart factory initiatives and drive operational excellence.

30+ days ago

Sr. Principal Software Engineer - Backend, Identity & Access Management (Chronosphere) Palo Alto Networks Inc

Baltimore, MD

Set the architectural direction for the platform on a 1-3 year horizon, including APIs for other teams, shippable iterations, build-versus-buy decisions, how we manage technical debt, and how to scale reliably. The Identity & Access Management team owns our authentication and access control platform: the APIs, libraries, services, and data stores other engineering teams integrate with to control who can do what in their part of the product.

30+ days ago

Software Engineer, Associate Principal Kratos Defense

Annapolis Junction, MD

Keyword: Java, Python, Linux, Skyfield, STK, GMAT, database, Kafka, PostgreSQL, MongoDB, shell scripting, satellite, geolocation, TDOA, FDOA, SIGINT, signal processing, algorithms, Git, Scrum, Jira, GNSS. Expertise in architecting enterprise-scale message-oriented architectures or streaming data frameworks (Kafka, RabbitMQ, Redis) for real-time signal processing and global data distribution .

30+ days ago

Principal Software Escalation Engineer Palo Alto Networks Inc

Columbia, MD

$147,000–$237,500 / year

Own the R&D Escalation Strategy: Act as the single accountable authority for technical escalations, replacing reactive "ping-pong" with a structured, predictive pipeline that restores delivery predictability to the sprint teams. Influence the Roadmap: Use data from the field (trends, escaped bugs, and friction points) to drive strategic roadmap decisions, ensuring we prioritize technical debt and usability improvements alongside new features.

30+ days ago

Master Principal Architect, Data Platform - FSI Oracle

Annapolis, MD

$147,300–$243,800 / year

This strategic presales role combines deep technical expertise, industry knowledge, and executive engagement skills to help customers modernize their data estates and accelerate business transformation using Oracle's Data Platform portfolio. Oracle's Data Platform portfolio delivers industry-leading database, analytics, AI, and data management solutions that enable customers to modernize mission-critical workloads, unlock business insights, and accelerate innovation.

30+ days ago

Labor Relations Principal Exelon

BALTIMORE, MD

We are a Fortune 200 company, 20,000 colleagues strong serving more than 10.7 million customers at six energy companies -- Atlantic City Electric (ACE), Baltimore Gas and Electric (BGE), Commonwealth Edison (ComEd), Delmarva Power & Light (DPL), PECO Energy Company (PECO), and Potomac Electric Power Company (Pepco). + 4-year degree in Human Resources, Labor Relations, Business or related field and a minimum of 7 to 10 years of experience in specialty areas of HR such as Benefits, Compensation, Generalist, and/or Labor Relations.

24 days ago

Network Evaluator (Principal) - FULLY CLEARED with POLYGRAPH REQUIRED Constellation Technologies

Linthicum Heights, Maryland

$200,000–$252,000 / year

The benefits package: • Affordable healthcare options with 80% employer paid premium PLUS a company-funded HSA • Comprehensive Dental insurance • Vision with 80% employer paid premium • Employer paid Life insurance 100% • Employer paid Short-term and Long-term disability 100% • Annual training, continued education, and professional memberships reimbursement • Unlimited access to Red Hat Enterprise Linux and AWS training and accreditation • Annual reimbursement for technology i.e. phones, computers, printers, etc. Cisco, Juniper, & Arista devices and protocols, SIEM technologies, cybersecurity analysis, Splunk and Elastic, Hunt/Blue Team experience, Network Defense Integrity (NDI) Methodology, digital forensics, intrusion detection systems, vulnerability scanning technologies, MITRE ATT&CK, NIST cybersecurity frameworks, and scripting languages.

1 day ago

Principal Cybersecurity Systems Engineer Leidos Holdings Inc

$154,050–$278,475 / year

Provide technical support for the development, engineering, interfacing, integration, and testing of specific components of complex hardware/software systems to include requirements elicitation, analysis and functional allocation, conducting systems requirements reviews, and performing technical/non-technical assessments. Primary Responsibilities: Perform cybersecurity high assurance evaluation activities to include reviews of security evaluation documents and other high assurance artifacts/documents for devices undergoing certification and assessment, to ensure devices meet security requirements.

30+ days ago

Senior Principal Data Scientist / AI-ML SME (Analytic Superiority) Leidos Holdings Inc

Fort Meade, MD

$154,050–$278,475 / year

Autonomous 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).

30+ days ago

Data Scientist, Principal (Senior Software Developer; Systems Software) Avid Technology Professionals LLC

Columbia, MD

Exposure 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.

30+ days ago

SAP EWM- Principal Solution Architect Capgemini SE

Columbia, MD

$123,750–$326,250 / year

As a trusted advisor and solution leader, you will partner with business and technology stakeholders to design scalable warehouse management solutions aligned to SAP S/4HANA, Transportation Management (TM), and broader Demand-to-Supply (DTS) business processes. As a SaaS Solution Architect, you will bring your SaaS - and also non-SaaS - technology capabilities to architect solutions, converting business ambitions into Multi-Pillar SaaS architectures that enable agile, flexible and end-to-end business outcomes.

30+ days ago

Principal Architect - Sales Engineer Verizon Communications Inc

Annapolis Junction, MD

$124,500–$239,000 / year

Experience in the development and implementation of one or more of the following: data and IP services (VoIP, MPLS, VPN, Internet), managed network services (LAN, WAN, content delivery, WLAN, managed IP PBX), managed security solutions (firewall, proxy, VPN), managed mobility Solutions, data center outsourcing (cloud, application hosting, managed storage), call center technologies (ACD, IVR, customer portal, WFM), or IT applications management (SOA, web services, RTE). From health and wellness benefit options including: medical, dental, vision, short and long term disability, basic life insurance, supplemental life insurance, AD&D insurance, identity theft protection, pet insurance and group home & auto insurance.

30+ days ago

Information Security Engineer, Principal Blue Cross and Blue Shield Association

Baltimore, MD

In this role you will design, build, and operate security as code across application, data, cloud, and infrastructure environments, ensuring secure-by-default outcomes through automation and developer-native platforms. We are looking for leaders that are energized by creative and critical thinking, building and sustaining high-performing teams, getting results the right way, and fostering continuous learning.

8 days ago

Attendance Clerk - High School Arlington Independent School District

Bowie, MD

Interacts with parents, community members, and students in face-to-face interactions maintaining professionalism and exemplary customer service. Calls parents of absent students who have not been cleared maintaining professionalism and exemplary customer service.

30+ days ago

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Cleaning Jobs in Willow Grove, PA

Principal Desktop Engineer T. Rowe Price

Regional Geotechnical Principal Engineering Consulting Services Ltd

Building Enclosure Associate Principal Engineering Consulting Services Ltd

Principal FSW Engineer AST SpaceMobile

Principal Signals Software Engineer Envision Innovative Solutions

Software Engineer (Principal) - FULLY CLEARED with POLYGRAPH REQUIRED Constellation Technologies

SAP Principal Lead ST Engineering North America

Sr. Principal Software Engineer - Backend, Identity & Access Management (Chronosphere) Palo Alto Networks Inc

Software Engineer, Associate Principal Kratos Defense

Principal Software Escalation Engineer Palo Alto Networks Inc

Master Principal Architect, Data Platform - FSI Oracle

Labor Relations Principal Exelon

Network Evaluator (Principal) - FULLY CLEARED with POLYGRAPH REQUIRED Constellation Technologies

Principal Cybersecurity Systems Engineer Leidos Holdings Inc

Senior Principal Data Scientist / AI-ML SME (Analytic Superiority) Leidos Holdings Inc

Data Scientist, Principal (Senior Software Developer; Systems Software) Avid Technology Professionals LLC

SAP EWM- Principal Solution Architect Capgemini SE

Principal Architect - Sales Engineer Verizon Communications Inc

Information Security Engineer, Principal Blue Cross and Blue Shield Association

Attendance Clerk - High School Arlington Independent School District

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