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64 principal security engineer jobs at 29 companies in Flower Mound, TX

1mo
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Principal Security Engineer, Security Platform
Dallas, Texas, United States
$155k-$233k/yr HybridFull Time
Equinix
EquinixNASDAQ: EQIX: Provides global data center colocation and digital interconnection services.
8+ YOE8+ years in security or platform engineering with strong security fundamentals (IAM, app sec, data protection), API and service architecture, containers/orchestration, cloud delivery, CI/CD, and programming experience.
Docker, Kubernetes, API gateways, service meshes, Python, Java, C++, GitHub Actions, AWS, Azure, GCP
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Principal Security Engineer, Security Platform
Dallas, Texas, United States
$155k-$233k/yr HybridFull Time
Equinix
EquinixNASDAQ: EQIX: Global provider of data center and digital infrastructure services.
8+ YOE8+ years in security or platform engineering; expertise in secure software, REST APIs, containers, Kubernetes, CI/CD, cloud delivery, security architecture, and cross-team technical leadership.
Docker, Kubernetes, Python, Java, C++, GitHub Actions, AWS, Azure, GCP, RESTful APIs, IAM, API gateways, service meshes, CI/CD, DevSecOps, ML, AI
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2mo
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Principal Security Engineer
Johnston or Dallas or Irving or Plano or Franklin or Iselin or Boston or Providence
$140k-$180k/yr OnsiteFull Time
Citizens Financial Group
Citizens Financial GroupNYSE: CFG: Provides retail, commercial, and private banking services to customers.
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
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Principal Systems Engineer
Plano, Texas, United States
HybridFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
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
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2mo
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Principal Engineer - Stablecoin
Jersey City or Seattle or Plano or San Francisco or Charlotte
$157k-$230k/yr HybridFull Time
Bank of America
Bank of AmericaNYSE: BAC: Provides global banking, investing, and financial risk management services.
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
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1w
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Principal Engineer - Secure Network Services
Iselin or Irving or Chandler or Columbus or Charlotte
$159k-$305k/yr OnsiteFull Time
Wells Fargo
Wells FargoNYSE: WFC: Global provider of banking, investment, and mortgage financial services.
7+ YOERequires 7+ years engineering and load-balancing or firewall experience, 5+ years software development and advanced scripting, and 2+ years GitHub or similar source control experience.
F5, AVI, A10, NetScaler, AWS ELB, Azure Load Balancer, Palo Alto, Fortinet, Ansible, Terraform, Python, YAML, Java, PL-SQL, GitHub
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1mo
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Principal AI Security Platform & Harness Engineer
Jersey City or Coppell or Tampa
$95k-$180k/yr HybridFull Time
DTCC
DTCC: Provides post-trade infrastructure for the global financial services industry
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
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3w
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Principal Systems Security Engineer – Anti-Tamper/Program Protection - P4 (Onsite-McKinney, TX)
McKinney, Texas, United States
$108k-$205k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
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
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3w
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AI Security Principal Developer
Irving, Texas, United States
HybridFull Time
Vistra
VistraNYSE: VST: Generates and sells electricity to residential and industrial customers.
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
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Principal Manufacturing Engineer
Melbourne or Dallas or Austin or Cypress
OnsiteFull Time
Leonardo DRS
Leonardo DRSNASDAQ: DRS: Manufactures advanced electronic systems for defense and military applications.
8+ YOEBachelor’s degree in engineering with 8+ years of progressively complex engineering experience (or equivalent), U.S. citizenship, active or obtainable DOD security clearance, specialties in production/industrial/welding/tooling/testing/robotics possible.
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3mo
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AI Solutions Principal Engineer
Plano, Texas, United States
$111k-$185k/yr OnsiteFull Time
PepsiCo
PepsiCoNASDAQ: PEP: Global manufacturer and distributor of snacks and beverages.
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
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2mo
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Principal Engineer - Stablecoin
Jersey City or Seattle or Plano or San Francisco or Charlotte
$157k-$230k/yr OnsiteFull Time
Bank of America
Bank of AmericaNYSE: BAC: Provides banking, investment, and financial risk management services.
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
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3mo
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Principal AI Architect/Engineer
Plano, Texas, United States
$111k-$185k/yr OnsiteFull Time
PepsiCo
PepsiCoNASDAQ: PEP: Produces and distributes global snack and beverage products.
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
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2mo
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Principal Engineer I, Cyber - IT Security Governance
Phoenix or Dallas or Columbus
OnsiteFull Time
Western Alliance Bank
Western Alliance BankNYSE: WAL: National commercial bank providing specialized financial and business solutions.
8+ YOE8+ years in Cybersecurity/IT risk; Bachelor in IS/CS/Cybersecurity; knowledge of NIST/FFIEC/ISO; RCSAs; policy lifecycle; regulatory/audit support; strong communication; AI/automation experience; certifications preferred.
Python, PowerShell, Automation, AI/ML, Scripting
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1mo
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Principal DevSecOps & Release Engineer
Dallas, Texas, United States
OnsiteFull Time
Las Vegas Sands
Las Vegas SandsNYSE: LVS: Operates integrated resorts featuring casinos, hotels, and convention centers.
10+ YOE10+ years DevOps/DevSecOps/release engineering experience; bachelor's or master's in CS/IT/cybersecurity; CI/CD, IaC, container, cloud, scripting, and security practice expertise.
Prometheus, Grafana, OpenTelemetry, Jenkins, GitLab CI, CircleCI, Ansible, Chef, Puppet, Kubernetes, OpenShift, Docker, Terraform, AWS CloudFormation, AWS, Azure, Google Cloud, Python, Bash, PowerShell
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3mo
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AI Solutions Sr Principal Engineer
Plano, Texas, United States
$124k-$207k/yr OnsiteFull Time
PepsiCo
PepsiCoNASDAQ: PEP: Global food and beverage manufacturer and distributor.
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
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Principal Test Engineer - Guided Munitions Programs
Fort Worth, Texas, United States
OnsiteFull Time
Elbit Systems of America
Elbit Systems of America: Provides advanced technology systems for defense and commercial aviation.
9+ YOEBachelor's in electrical engineering, 9+ years engineering experience (5+ with optical systems), proficiency with Python, C++, NI LabView/TestStand, PXI/GPIB instrumentation, MIL-STD-1553 and other interfaces, ability to obtain DoD security clearance.
Python, C++, NI LabView, TestStand, MIL-STD-1553, ARINC 429, RS-232/422, Ethernet, PCIe, PXI, GPIB, DOORS, JIRA, MS Project, Product LifeCycle Management (PLM)
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2w
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Principal Software Engineer/Developer
Westlake, Texas, United States
OnsiteFull Time
Fidelity Investments
Fidelity Investments: Provides investment management, retirement planning, and brokerage services.
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
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Principal Project Engineer - Technical Export Focal (39763)
Greenville or Plano
OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
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.
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Principal Network Engineer
Westlake, Texas, United States
OnsiteFull Time
Fidelity Investments
Fidelity Investments: Provides investment management, retirement planning, and brokerage services.
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
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