53 principal security engineer jobs at 20 companies in Valley View, TX
2w
Save
Mark Applied
Hide
Principal Security Engineer - Reliability
Irving or Chandler or Charlotte
HybridFull Time
7+ YOE7+ years network security experience, 5+ years with enterprise security platforms, SRE/reliability practices, automation (Python/Ansible/Terraform), and incident leadership; bachelor\u0002s in related field or equivalent experience.
Python, Ansible, Terraform, APIs
1mo
Save
Mark Applied
Hide
Principal Security Engineer
Johnston or Dallas or Irving or Plano or Franklin or Iselin or Boston or Providence
$140k-$180k/yr OnsiteFull Time
10+ YOE10+ years security experience across domains, BA/BS in IT security or computer science, knowledge of IAM, DLP, vulnerability management, pen testing, cloud security, scripting (Python, PowerShell), Active Directory, strong written/verbal communication and risk-based decision-making.
Python, PowerShell, Active Directory, Linux, Windows, OWASP, DLP, Anti-Virus, Firewall, Generative AI
2w
Save
Mark Applied
Hide
Principal Security Engineer
Basking Ridge or Alpharetta or Irving or Ashburn or Temple Terrace or Cary
$121k-$231k/yr HybridFull Time
6+ YOE6+ years network security experience, expertise in routing/switching and BGP/IGP security, SIEM/Splunk, automation with Python/Ansible/Terraform, and leadership in cross-functional projects.
Splunk, Python, Ansible, Terraform, API, ISE
1mo
Save
Mark Applied
Hide
Principal Systems Engineer
Plano, Texas, United States
HybridFull Time
14+ YOEMastery in requirements engineering, systems integration, V&V, MBSE; 14+ years systems engineering experience; bachelor’s in engineering (master’s preferred); active U.S. security clearance with Top Secret/SCI eligibility.
DOORS, Cameo, MATLAB, Open Mission System, Universal Command and Control Interface
1mo
Save
Mark Applied
Hide
Principal Security Engineer
Basking Ridge or Alpharetta or Ashburn or Irving or Cary or Temple Terrace
$121k-$231k/yr HybridFull Time
6+ YOE6+ years relevant experience, bachelor’s degree or equivalent experience, leadership experience, deep routing/switching and network security expertise, hands-on with Python/Ansible/Terraform, Splunk/SIEM, and network telemetry analysis.
Python, Ansible, Terraform, Splunk, Confluence, SIEM, API
2mo
Save
Mark Applied
Hide
Principal Engineer - Stablecoin
Jersey City or Seattle or Plano or San Francisco or Charlotte
$157k-$230k/yr HybridFull Time
Experience designing and building secure, scalable financial blockchain apps and smart contracts; multi-cloud, multi-region; cloud providers (AWS, GCP, Azure); web3 protocols; Solidity/Rust; cryptography; DeFi; code reviews and security analysis; integration with external systems.
Solidity, Rust, Web3, Truffle, Hardhat, Remix, Web3.js, Ethers.js, Terraform, AWS, GCP, Azure
1mo
Save
Mark Applied
Hide
Principal AI Security Platform & Harness Engineer
Jersey City or Coppell or Tampa
$95k-$180k/yr HybridFull Time
8+ YOE8+ years related experience; bachelor's preferred; strong Python and distributed systems background; experience with LLM integrations, Docker, Kubernetes/OpenShift, AWS, CI/CD tooling, and application security concepts.
Python, Java, Claude, OpenAI, Bedrock, Docker, Kubernetes, OpenShift, AWS, Git, Bitbucket, Jenkins, Jira
3w
Save
Mark Applied
Hide
Principal Systems Security Engineer – Anti-Tamper/Program Protection - P4 (Onsite-McKinney, TX)
McKinney, Texas, United States
$108k-$205k/yr OnsiteFull Time
8+ YOEU.S. citizen with active transferable Secret clearance, typically Bachelor's in STEM and 8+ years experience in system security engineering, anti-tamper, embedded security, DoD programs, and CPI/threat modeling.
FPGA
3w
Save
Mark Applied
Hide
AI Security Principal Developer
Irving, Texas, United States
HybridFull Time
8+ YOE8+ years in data management/integration/APIs or related practice; AI fluency; experience designing and scaling AI solutions; strong problem-solving and systems thinking; collaboration skills; SAS, Hadoop, and cloud experience desirable.
SAS, Hadoop
3mo
Save
Mark Applied
Hide
AI Solutions Principal Engineer
Plano, Texas, United States
$111k-$185k/yr OnsiteFull Time
8+ YOEBachelor’s or Master’s in CS/Engineering/IS/Data AI; 8–12 years in solution architecture; strong API, AI, security, and production readiness experience.
Python, Java, C++, Langchain, CrewAi, MCP, A2A, AWS, Azure, Google Cloud
2mo
Save
Mark Applied
Hide
Principal Engineer - Stablecoin
Jersey City or Seattle or Plano or San Francisco or Charlotte
$157k-$230k/yr OnsiteFull Time
10+ YOE10+ years experience designing and delivering secure, scalable blockchain and stablecoin solutions; smart contract development (Solidity,Rust); Web3 protocols; cloud (AWS/GCP/Azure); cryptography and DLT security.
AWS, GCP, Azure, Solidity, Rust, Ethereum, Solana, Hyperledger, Truffle, Hardhat, Remix, Web3.js, Ethers.js, Terraform, Chainlink
3mo
Save
Mark Applied
Hide
Principal AI Architect/Engineer
Plano, Texas, United States
$111k-$185k/yr OnsiteFull Time
6+ YOELead observability and AI platform work; strong Python, OTEL, distributed systems, and security governance skills; 6–8 years in software/platform engineering with 2–3 years in observability.
OpenTelemetry (OTEL), Python, Docker, Kubernetes, Grafana, Datadog, Splunk, Prometheus, Poetry, Ruff, pytest, REST, gRPC, Kafka
1mo
Save
Mark Applied
Hide
Principal Mechanical Engineer
Richardson, Texas, United States
OnsiteFull Time
12+ YOEUS citizen able to obtain a U.S. government security clearance; BS (minimum) in Mechanical Engineering; 12+ years mechanical design experience for ruggedized electronics; FEA thermal/structural analysis, BOM and 2D/3D modeling, GD&T, Microsoft Office proficiency.
SolidWorks, Flotherm CFD, Ansys Structures FEA, Microsoft Excel, Microsoft Word, Microsoft PowerPoint
3mo
Save
Mark Applied
Hide
AI Solutions Sr Principal Engineer
Plano, Texas, United States
$124k-$207k/yr OnsiteFull Time
12+ YOELead AI/agentic platform architecture; 12+ years enterprise architecture; Salesforce Agentforce and ServiceNow AssistNow expertise; strong SaaS governance, security, and integration.
Salesforce Agentforce, ServiceNow AssistNow, Python, Java, C++, API gateway, SSO/OAuth, AWS, Azure, GCP, LangChain, CrewAI
5d
Save
Mark Applied
Hide
Principal MMIC Design Engineer
Richardson, Texas, United States
OnsiteFull Time
6+ YOEElectrical engineering degree with 6–12+ years of experience, advanced GaN/GaAs MMIC design expertise, nonlinear and electromagnetic simulation proficiency, microwave measurement knowledge, US citizenship, and ability to obtain security clearance.
ADS, Microwave Office (MWO), SONNET, Axiem, Momentum, HFSS
2w
Save
Mark Applied
Hide
Principal Software Engineer/Developer
Westlake, Texas, United States
OnsiteFull Time
3+ YOERequires 3–7 years of software engineering experience depending on education, with expertise in cloud-native applications, Java, microservices, AWS, REST APIs, DevOps, databases, streaming, and automated testing.
SaaS, Docker, Elastic Kubernetes Service (EKS), Java, REST, Kafka, Amazon Web Services (AWS) SQS, Active MQ, Jenkins Core, Git, Artifactory, Jira, Unit, Component, Functional, Performance, Security, AWS, Azure, IKS, Pivotal Cloud Foundry (PCF), HTML5, Angular, JavaScript, Kubernetes, Agile, Spring Boot, MyBatis, Hibernate, Java Persistence API (JPA), Spring Batch, Mule ESB, IBM DataPower, Redshift, AWS Lambda, API Gateway, DynamoDB, S3, Oracle, MongoDB, Cassandra, RabbitMQ, SQS, SNS, Kinesis, Apache, Camel, JUnit, Protractor, Chaos Mesh, AWS KMS, Secrets Manager, Cognito
1mo
Save
Mark Applied
Hide
Principal Project Engineer - Technical Export Focal (39763)
Greenville or Plano
OnsiteFull Time
12+ YOE12+ years engineering experience (or 16 with no degree) with export licensing experience, ability to obtain U.S. security clearance, and experience coordinating cross-functional stakeholders for DCS/FMS programs.
1mo
Save
Mark Applied
Hide
Principal Network Engineer
Westlake, Texas, United States
OnsiteFull Time
7+ YOE7+ years network engineering experience with data center segmentation, micro-segmentation, and Zero Trust; hands-on with Illumio, Guardicore (Akamai), Cisco Secure Workload/Tetration, enterprise networking vendors, cloud, Kubernetes, scripting, ServiceNow, and security tooling.
Illumio, Guardicore (Akamai), Cisco Secure Workload, Tetration, Cisco, HP, Arista, Palo Alto, Check Point, Juniper, TCP/IP, SIEM, SOAR, CMDB, ServiceNow, AWS, Azure, GCP, Kubernetes, Python, Microsoft PowerShell, APIs, Linux, Windows, ZTNA, SASE
1mo
Save
Mark Applied
Hide
Principal Cybersecurity Engineer, Telco
Bellevue or Overland Park or Frisco or United States
$128k-$231k/yr OnsiteFull Time
5+ YOEBachelor's degree +7 years (or advanced degree +5 years) in CS/IT; expertise in 3GPP/5G, IMS, packet core; experience conducting security assessments, automation, incident management, threat modeling, and AI; CISSP/CISM/CRISC preferred.
3GPP, IMS, EPC, UPF, Diameter, SIP, HTTP/2, AI, e911, VoLTE, RCS, SMS, MMS, zero-trust
1w
Save
Mark Applied
Hide
Distinguished Engineer, AI Threat Defense
Eagan or Frisco or New York City or Richmond or San Francisco or Los Angeles or Irvine or McLean or Washington
$198k-$368k/yr HybridFull Time
12+ YOE12+ years of cybersecurity engineering experience at Principal, Staff, or Distinguished Engineer level, with AI threat defense, production AI systems, mature SOC/CIRT, enterprise security architecture, and technical influence expertise.
Model Context Protocol (MCP), SIEM, SOAR, SAST, AppSec, AWS, Azure, GCP, LLM
Explore Jobs