April 30, 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. If 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.
Philadelphia, PA2 days ago
This role focuses on building and operating scalable, high-quality data infrastructure that powers agentic AI systems, including LLM-based agents, multi-agent workflows, and tool-using AI systems. • Architect and build scalable, secure, and observable data infrastructure to power LLM-based agents, multi-agent systems, and tool-using AI workflows.
Philadelphia, PA2 days ago
p>• Design and implement core components of the SMTP relay harness, including Mail Transfer Agent (MTA) infrastructure, scalability, IP management, encryption, and DMARC support, working from conception through production operation. • Contribute to technical design discussions on how the relay integrates with existing inline products (outbound DLP, behavioral outbound, misdirected email), helping define the architecture of the broader Mail Flow platform.
Philadelphia, PA2 days ago
p>• Collaborate with Technical Program Managers, Product Managers, and Go-To-Market teams in order to implement, verify, and iterate on the issues & requests coming from our customers. The team’s goal is to automate security analysts workflows by providing them with reliable, intuitive, and delightful agentic products that give them back time in their day.
p>Columbia Research Laboratories (CRL) one of the world leaders in manufacturing and distribution of Accelerometers, Inclinometers, LVDT's, Strain Sensors, Dynamic Pressure sensors and Signal conditioning Instruments is looking for a Sensors Design Engineer for our Woodlyn, PA Location. Candidate must be a team player and have the ability to work directly with our senior engineers in order to develop new designs and solutions.
Columbia Research Laboratories (CRL) one of the world leaders in manufacturing and distribution of Accelerometers, Inclinometers, LVDT's, Strain Sensors, Dynamic Pressure sensors and Signal conditioning Instruments is looking for a Sensors Design Engineer for our Woodlyn, PA Location. Candidate must be a team player and have the ability to work directly with our senior engineers in order to develop new designs and solutions.
Philadelphia, PA2 days ago
p>• Be a guardian of data quality: You’ll ensure our datasets stay accurate and performant by using our observability tools to monitor quality and joining a weekly triage rotation to resolve data issues as they arise. Recent platform improvements the team has driven include launching a data catalog, introducing data observability, and implementing a medallion architecture to ensure our data is reliable, accurate, and accessible.
Philadelphia, PA2 days ago
As a Software Engineer focused on building systems for Detection’s Model Platform, you will be responsible for making feature development at Abnormal a fast, responsive, stable, and confident experience for our ML and Data Science team. The Detection Division is focused on building the world’s most advanced technology for identifying and stopping email and cloud-based attacks that were previously undetectable and help make the world a safer place.
Qualifications: · A Bachelor’s Degree in an engineering discipline, Master’s degree highly desired · At least 6 years’ experience in Systems Engineering of Information Assurance systems/products · Active US Government security clearance (DOD SECRET minimum) · US Citizenship required · Excellent verbal and written communications skills; works with others to coordinate efforts, influence and resolve cross-team issues and effectively communicate changes. o Exceptional security architecture development skills; specifically including the ability to make complex design trade-offs affecting system security o Experience negotiating security requirements with NSA Technical Evaluators.
Wilmington, DE30+ days ago
The ideal candidate will have strong experience in enterprise-scale software engineering, Agile delivery, and modern DevOps practices and a proven ability to coach teams, drive engineering excellence, and deliver resilient, secure applications. With delivery centers and offices across North America and India, we take pride in building long-term relationships and delivering excellence through innovation, collaboration, and integrity.
- Design and implement security solutions using protocols such as BGP, VxLAN, SD-WAN, SDN, EVPN, IS-IS, MPLS, LDP, and Segment Routing.
Preferred:
- Familiarity with Wireless LAN Controllers, Arista Velo Cloud, Arista Cloud Vision, and RADIUS.
Philadelphia, PA21 days ago
A working knowledge of Cisco network environment along with the ability to support a wide range of infrastructure technologies including Cisco routing and switching, WAN/LAN, VoIP, Unified Communications, enterprise, border and optimization management architectures/systems (VMWare, NetApp, AD, Citrix and Net Scalers). '',''Pennsylvania-Philadelphia'',''Pennsylvania-Philadelphia'',''Information Technology'',''Information Technology'',''Full-time'',''Full-time'',''Day Job'',''Day Job'',''Regular'',''Regular'',''false'',''404185'',''404185'',''true'',''404185'',''false'',''Submission for the position: Sr Network Security Engineer - (Job Number: 262814)'',''false'',''404185'',''false'',''true''.
Conshohocken, PA30+ days ago
p>Primary Responsibilities: Designs, implements, and supports security controls for operational technology networks, industrial control systems, manufacturing systems, warehouse automation platforms, building management systems, and related connected environments.
Partners with network engineering, infrastructure, operations, facilities, manufacturing, warehouse automation, and cybersecurity teams to implement secure network designs, firewall policies, access controls, and remote access solutions for OT environments.
To help spot these scams, remember that during our formal recruitment process, L3Harris will NOT (1) ask you for money; (2) offer to send you a check before doing any work; (3) require you to provide sensitive personal information early in the process or sensitive information about your previous employer; (4) send you emails from free commercial services (e.g. Develops Concepts of Operations (CONOPS), decomposing and synthesizing security requirements, verifying security features, supporting security architecture development and analysis, and assisting with design and security test planning and execution.
King of Prussia, Pennsylvania30+ days ago
You will collaborate with software developers, systems engineers, and government stakeholders to navigate the Risk Management Framework (RMF) lifecycle and maintain the Authority to Operate (ATO) for complex cloud and on-premise environments. - RMF & ATO Management: Lead the end-to-end Risk Management Framework (RMF) process, managing NIST 800-53/171 control sets and coordinating with cybersecurity entities (SCA/DAO) to secure and maintain Authority to Operate (ATO).
li>Build and administer core network and systems security controls, including: Next Gen firewalls, ZTNA - Zero Trust Network Architecture, intrusion detection and prevention, anti-malware, application whitelisting, host intrusion prevention, endpoint detection and response (EDR), vulnerability scanners, content monitoring/filtering, and security monitoring (SIEM). This role is responsible for managing the controls that protect the organization''s computer networks, systems, and data from cyberattacks, working closely with IT teams to identify, assess, and mitigate security risks, and supporting incident response to contain the damage from security incidents and prevent future attacks.
Philadelphia, PA5 days ago
li>3+ years of experience with Cisco Identity Services Engine (ISE) 802.1X Network Access Control (NAC), guest lifecycle management, profiling policies, TrustSec segmentation, and Cisco Firepower capabilities including intrusion prevention system (IPS), malware protection, Uniform Resource Locator (URL) filtering, Domain Name System (DNS)-based security, Secure Sockets Layer/Transport Layer Security (SSL/TLS) decryption, and cloud firewall deployments in Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Platform (GCP). 5+ years of experience designing, deploying, and managing Cisco Firepower Threat Defense (FTD) and Firepower Management Center (FMC) in enterprise environments, including physical appliances, virtual instances, and cloud-delivered Firewall Management Center (cdFMC).
Newtown Square, PA30+ days ago
The SAP Security Engineer will design and implement a secure SAP authorization model aligned with DOE cybersecurity requirements. The role requires on-site engagement for security reviews, compliance validation, and audit readiness, with remote support for role configuration and documentation.
This role requires deep hands-on expertise with Palo Alto Networks and Cisco firewall platforms, along with strong knowledge of network security principles, zero-trust architecture, VPN technologies, Cisco ISE, and SD-WAN security. What You'll Do:
As a Network Security Engineer at Customers Bank, you will be a key member of our IT Network team, responsible for designing, implementing, administering, and supporting our enterprise network security infrastructure.
Wilmington, DE30+ days ago
In this role, you will serve as a hands-on technical leader responsible for designing, engineering, and optimizing Cortex XSIAM to deliver high-fidelity detections, scalable automation, and rapid incident response. You'll have the opportunity to shape how security operations evolves, driving improvements in signal quality, automation maturity, and mean time to respond, while continuously expanding your technical depth in XSIAM, XQL, and advanced security analytics.
Philadelphia, PA30+ days ago
p>Responsibilities: - RMF & ATO Management: Lead the end-to-end Risk Management Framework (RMF) process, managing NIST 800-53/171 control sets and coordinating with cybersecurity entities (SCA/DAO) to secure and maintain Authority to Operate (ATO). You will collaborate with software developers, systems engineers, and government stakeholders to navigate the Risk Management Framework (RMF) lifecycle and maintain the Authority to Operate (ATO) for complex cloud and on-premise environments.
Wilmington, Delaware30+ days ago
li style="margin-left:0.5in">5 years experience in security systems, including firewalls, intrusion detection systems, endpoint protection systems, web application firewalls, vulnerability scanning software, privilege access management, data loss protection, log management, content filtering. Develop and engineer technical security solutions to mitigate risk and improve operational efficiency, with a strong focus on:- Privileged Access Management (vaulting, session management, just‑in‑time access, secrets management).
Fort Washington, PA30+ days ago
NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com and @talent.nttdataservices.com email addresses. We are one of the world''s leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services.