16 software product security engineer jobs at 14 companies in Winchester, VA
1mo
Save
Mark Applied
Hide
Senior DoD Product Security Engineer
Clarksburg, Maryland, United States
OnsiteFull Time
5+ YOEHands-on RMF/ATO experience, 5+ years security engineering, knowledge of NIST/STIGs/eMASS, hardware and software security, secure-SDLC and SBOMs, US Person and eligible for security clearance.
NIST 800-37, NIST 800-53, NIST 800-171, DISA STIGs, eMASS, SAST, DAST, SBOM, CI/CD, C, C++, Python, ARM, x86, FIPS 140-3, TPM, HSM
4w
Save
Mark Applied
Hide
Software Engineer
Sterling, Virginia, United States
$75k-$125k/yr OnsiteFull Time
Design and deploy AI agents, build secure RESTful APIs, implement automated testing, optimize data architectures, mitigate web security risks, debug production systems; must be US citizen/green card holder eligible for Top Secret clearance.
Python, JavaScript, TypeScript, agentic coding tools, RESTful APIs, Docker, Kubernetes, Google Cloud Platform (GCP), Amazon Web Services (AWS)
2d
Save
Mark Applied
Hide
Rust Software Engineer
Reston, Virginia, United States
OnsiteFull Time
3+ YOEBachelor's degree in a related field, 3+ years of industry experience, production Rust development, backend services, async programming, and ability to obtain an interim security clearance; U.S. citizenship required.
Rust, Axum, Tokio, Java, Python, TypeScript, React
4d
Save
Mark Applied
Hide
Software Developer/Systems Engineer
Herndon, Virginia, United States
$180k-$230k/yr OnsiteFull Time
5+ YOERequires active TS/SCI clearance with polygraph, 5+ years building production data pipelines with Python, large-scale REST API experience, security tool familiarity, and AI application integration experience.
Python, REST, Nmap, Rapid7
2mo
Save
Mark Applied
Hide
Ground Software Engineer (Mid Career) - Millennium Space Systems
Chantilly or El Segundo
$128k-$189k/yr OnsiteFull Time
Bachelor's in CS/CE/AE or related; experience designing and developing production software, scripting and backend development; ability to obtain U.S. security clearance (Secret required); support classified testing and integrations.
2mo
Save
Mark Applied
Hide
Ground Software Engineer (Mid Career) - Millennium Space Systems
Chantilly or El Segundo
$128k-$189k/yr OnsiteFull Time
Bachelor's in CS/CE/AE or related; experience designing and developing production software, scripting and backend applications; ability to obtain U.S. Secret security clearance (U.S. citizenship required); must meet U.S. export control (US Person) requirements.
1w
Save
Mark Applied
Hide
Full Stack Engineer / Software Developer (CBP)
Ashburn, Virginia, United States
HybridFull Time
Production software development experience, secure coding and CI/CD experience, full-stack capability, and U.S. citizenship required. Active CBP BI and EOD preferred; government or regulated-environment experience preferred.
CI/CD
3mo
Save
Mark Applied
Hide
Software Engineer - HR (Workday personnel) - Mobility
Centreville, Virginia, United States
OnsiteFull Time
4+ YOE4+ years of Workday production support; experience in HCM, Benefits, Recruiting, Absence, Time Tracking, Payroll (or interfaces), Security; strong data flows and integrations; translate business requirements into technical solutions.
Workday, EIB, Core Connectors, Studio, REST APIs, SOAP APIs, Python, PowerShell, SFTP
2d
Save
Mark Applied
Hide
Modeling and Simulation Software Architect
Chantilly or El Segundo or Colorado Springs
$117k-$176k/yr OnsiteFull Time
6+ YOEBachelor's degree in Computer Science, Software Engineering, or related STEM field; 6+ years in modeling and simulation; C++ production software expertise; technical leadership, mentoring, communication, and security clearance eligibility.
C++, Bitbucket, Jira, GitHub, CMake, podman, Docker, Apptainer
3w
Save
Mark Applied
Hide
Principal AI Engineer
Reston, Virginia, United States
$179k-$198k/yr HybridFull Time
8+ YOE8+ years engineering experience; bachelor's degree or equivalent; production experience with LLM APIs, agent frameworks, Python, cloud platforms, evaluation, security, and governance; hybrid work in Reston required.
Anthropic Claude, Claude Code, Snowflake, Omni, Model Context Protocol (MCP), Microsoft Azure, Microsoft Dynamics, Salesforce, Python, TypeScript, JavaScript, SQL, Copilot Studio, Azure AI Foundry, Power Platform
4w
Save
Mark Applied
Hide
AI - Cybersecurity Forward Deployed Engineer - FDE Senior Manager
Albany or Arlington or Atlanta or Austin or Beaverton or Bentonville or Boston or Carmel or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Culver City or Denver or Des Moines or Detroit or Hartford or Herndon or Houston or Irvine or Irving or Kirkland or Miami or Milwaukee or Minneapolis or Morristown or Mountain View or Nashville or New York City or Oklahoma City or Overland Park or Philadelphia or Pittsburgh or Raleigh or Redmond or Sacramento or San Diego or San Francisco or Scottsdale or Seattle or St. Louis or St. Petersburg or Walnut Creek or United States
$113k-$366k/yr FieldFull Time
10+ YOERequires 10+ years cybersecurity engineering, 2+ years production agentic AI delivery, 8+ years security ownership and cloud security, bachelor's degree or equivalent, and people-management experience.
Claude Code, Cursor, GitHub Copilot, OWASP LLM Top 10, AWS, Azure, GCP, EU AI Act, NIST AI RMF
2mo
Save
Mark Applied
Hide
Lead Engineer, Secure Client Engineering
United States or New York City or Reston
$168k-$183k/yr RemoteFull Time
8+ YOE8+ years production software development with significant native desktop or platform-level experience; deep C++ and lower-level Windows expertise; familiarity with JavaScript/TypeScript, React, Node.js, Swift, GitHub, and AWS; mob programming and US work authorization required; travel 3-5x/yr.
C++, JavaScript, TypeScript, React, Node.js, Swift, GitHub, AWS, Win32 APIs, Assembly
2w
Save
Mark Applied
Hide
DevOps Engineer
Chantilly, Virginia, United States
$78k-$176k/yr OnsiteFull Time
5+ YOERequires 5+ years with AWS, CI/CD, Kubernetes, infrastructure as code, Helm, and automation tools; 4+ years developing production applications; TS/SCI with polygraph; high school diploma; required security certification within 6 months.
AWS Cloud, Kubernetes, Helm, Ansible, Puppet, Chef, Bash, PowerShell, Python, Groovy, Ruby, JSON, REST, XML, YAML, AWS Certification, Certified Solutions Architect Associate Certification, Google Certified Professional – Cloud Architect, MCSE – Cloud Platform and Infrastructure Certification
1w
Save
Mark Applied
Hide
Principal AI Engineer
Austin or Menlo Park or Reston
HybridFull Time
Production AI/ML platform experience, strong Python or Go skills, Docker, Kubernetes, Linux, APIs, infrastructure-as-code, model serving, security, testing, observability, and edge deployment expertise.
Python, Go, Docker, Kubernetes, Linux, APIs, ONNX, TensorRT, PyTorch, Triton, vLLM
1mo
Save
Mark Applied
Hide
AI/ML Engineer, Mid
Chantilly, Virginia, United States
$78k-$176k/yr OnsiteFull Time
Experience building/deploying AI/ML solutions and LLMs, proficiency with Python, knowledge of AI frameworks and production security, TS/SCI with polygraph required, bachelor's degree in STEM.
Python, LangGraph, MCP, A2A, PyTorch, Keras
1mo
Save
Mark Applied
Hide
Sr. Technical Program Manager - DC Security, Infrastructure Security
Seattle or Herndon
$149k-$201k/yr HybridFull Time
5+ YOE5+ years technical program/product management, experience working with engineering teams, software development experience, program delivery across cross-functional teams, KPI/SLA definition and reporting to senior leadership.