110 security software engineer jobs at 58 companies in Trinity, AL
2w
Save
Mark Applied
Hide
Software Engineer (Active Security Clearance)
Huntsville, Alabama, United States
OnsiteFull Time
Bachelor's degree in software, computer engineering, computer science, or related field; software development experience; ADA, C, C++, or Python; active DoD Secret clearance; and US citizenship.
ADA, C, C++, Python, machine learning, artificial intelligence, RF, Optical
1mo
Save
Mark Applied
Hide
Junior Level Software Engineer/Software Test Engineer
Huntsville or Redstone Arsenal
OnsiteFull Time
2+ YOEUS citizen with Bachelor’s in CS/CE (or equivalent), 2 years software engineering experience, C++ development, Linux, Git, software testing, and ability to obtain a security clearance.
C++, Linux, Git, CUDA
3d
Save
Mark Applied
Hide
Senior Software Engineer
Huntsville, Alabama, United States
HybridFull Time
Requires 5–15 years of software engineering experience, extensive C/C++ expertise, U.S. citizenship, ability to obtain security clearance, and a bachelor's degree in computer science, software engineering, or related STEM field.
C, C++, Python, YAML, Bash, ADA, Linux, Windows
3d
Save
Mark Applied
Hide
Senior Software Engineer
Huntsville or Austin
HybridFull Time
5+ YOERequires 5–15 years of software engineering experience, extensive C/C++ expertise, U.S. citizenship, ability to obtain security clearance, and a bachelor's degree in computer science, software engineering, or related STEM field.
C, C++, Python, YAML, Bash, Ada, Linux, Windows
3mo
Save
Mark Applied
Hide
Sr Software Engineer
Huntsville, Alabama, United States
OnsiteFull Time
8+ YOEExtensive software engineering experience in modern C++, Linux, build systems (Make/CMake), Agile Scrum, team leadership, and eligibility for Secret security clearance.
C++, Linux, RedHat, Make, CMake, Atlassian, GitLab, DevOps, CI, CD, Security Technical Implementation Guide (STIG), Risk Management Framework (RMF), LMOC, TBCF, XLCC
1w
Save
Mark Applied
Hide
Senior Software Engineer
Huntsville, Alabama, United States
OnsiteFull Time
7+ YOEBachelor's degree and 7+ years of software engineering experience required. Requires C++, Python, MATLAB, Fortran, algorithm development, optimization, Git, US citizenship, and active security clearance.
C++, Python, MATLAB, Fortran, Git, Linux, CI/CD, DevSecOps
2mo
Save
Mark Applied
Hide
Senior Software Engineer
Huntsville or Hawaii or Nevada or Alabama
OnsiteFull Time
8+ YOEBachelor's in CS/SE/CE/EE, 8+ years software engineering experience, strong C/C++ and embedded/real-time development, GUI and Linux experience, hardware integration, security/ATO/RMF familiarity, and ability to obtain a U.S. security clearance.
C++, C, Python, Rust, VHDL, Verilog, Docker, FreeRTOS, STM32, Linux, Risk Management Framework (RMF), STIGs, Authority to Operate (ATO), SIPRNet, JWICS, MOSA, SOSA
1w
Save
Mark Applied
Hide
Senior Software Engineer
Huntsville, Alabama, United States
OnsiteFull Time
7+ YOEBachelor's degree in a technical field, 7+ years of software engineering experience, advanced C++ plus Python, MATLAB, and Fortran, algorithm development, optimization, Git, US citizenship, and active security clearance.
C++, Python, MATLAB, Fortran, Git, Linux
2w
Save
Mark Applied
Hide
Software Engineer
Huntsville, Alabama, United States
OnsiteFull Time
Bachelor's degree, active Secret or higher security clearance, and software development experience with Java, Python, C++, or Rust, backend systems, testing, deployment, version control, and operating systems.
Java, Python, C++, Rust, GitLab, Windows, Linux
2mo
Save
Mark Applied
Hide
Software Engineer Staff
Huntsville, Alabama, United States
OnsiteFull Time
Full-time software engineer with C/C++ experience; requires US citizenship and Secret security clearance; onsite in Huntsville, AL.
C, C++, RTOS (GreenHill, VxWorks), MBSE
4w
Save
Mark Applied
Hide
Software Engineer, Mid -Level
Huntsville, Alabama, United States
OnsiteFull Time
3+ YOEBachelor's or Master's in engineering/CS/physics/math, 3+ years software engineering, proficiency in C++ and Python, CUDA capability, Linux (RedHat/Debain), DevSecOps experience, and active Secret security clearance required.
C++, CUDA, Python, Linux, RedHat, Debain, doxygen, UML, CI/CD, DevSecOps
3w
Save
Mark Applied
Hide
Embedded Software Engineer
Huntsville or McLean or El Segundo or Colorado Springs
$87k-$198k/yr OnsiteFull Time
7+ YOE7+ years software engineering with Rust,C,C++,or Python; experience with production full-stack apps,Kubernetes,CI/CD,DevSecOps,security best practices; Secret clearance; bachelor's in CS/Engineering or equivalent experience.
Rust, C, C++, Python, Kubernetes, CI/CD, PyO3, SonarQube, Clippy, cargo-deny, cargo-audit, GitHub, SysML, DoDAF, UAF
2w
Save
Mark Applied
Hide
Software Engineer
Huntsville, Alabama, United States
OnsiteFull Time
3+ YOEBachelor's degree in computer science, engineering, or related technical field; 3 years of related experience; Python, secure REST APIs, Docker, AI agents, RAG pipelines, cloud deployment, and clearance eligibility required.
Python, REST APIs, Docker, SQL, Model Context Protocol (MCP)
2mo
Save
Mark Applied
Hide
Senior Software Engineer
Huntsville, Alabama, United States
OnsiteFull Time
8+ YOEU.S. citizen with active DoD Top Secret clearance with SCI, 8 years experience, proficiency in Java, Springboot, Angular, Python, AWS, and familiarity with software testing, deployment, and security requirements.
Java, Springboot, Angular, Python, AWS
1w
Save
Mark Applied
Hide
Software Engineer Senior Staff
Littleton or Huntsville
$167k-$310k/yr OnsiteFull Time
Experience with C or C++, embedded software or hardware, software development lifecycle, and unit testing. U.S. citizenship and government security clearance required; bachelor's degree preferred.
C, C++, Agile Software Development, Model Based Systems Engineering (MBSE)
2mo
Save
Mark Applied
Hide
Principal Software Engineer, Manufacturing Test
Huntsville, Alabama, United States
OnsiteFull Time
7+ YOEBachelor’s in CS/Software/EE/Robotics; 7+ years in software engineering/manufacturing automation; Python plus Bash/PowerShell/C/C++; automated test systems; Linux admin; CM/CI/CD; hardware interfaces; robotics/embedded systems; ability to obtain US security clearance.
Python, Bash, PowerShell, C/C++, Linux, Git, CI/CD
1mo
Save
Mark Applied
Hide
Software Developer (Senior)
Huntsville, Alabama, United States
OnsiteFull Time
8+ YOE8+ years software development experience; proficiency with Java/C#/Python, Angular or Vue.js, AWS; strong troubleshooting, security awareness, and integration/automation experience; active Top Secret clearance required.
Java, C#, Python, Angular, Vue.js, AWS, CI/CD
4d
Save
Mark Applied
Hide
Modeling & Simulation Software Integration Engineer
Huntsville or United States
OnsiteFull Time
5+ YOEBachelor's degree in engineering, mathematics, or computer science; 5–7 years of experience; active security clearance; software integration, testing, troubleshooting, and defense simulation experience.
Hardware-in-the-Loop (HWIL), Objective Simulation Framework (OSF), GMD System Trainer (GST), Ballistic Missile Defense System (BMDS) Command and Control, Battle Management, and Communications (C2BMC) Model, Threat Generator External (TGx)
1mo
Save
Mark Applied
Hide
MBSE Software Systems Engineer, HSV
Huntsville, Alabama, United States
$175k-$198k/yr OnsiteFull Time
15+ YOEActive DoD security clearance, 15+ years software/systems engineering, Bachelor's (or 4 yrs experience substitute), MBSE experience, SysML/UML, strong organizational and facilitation skills.
SysML, UML, DOORS, Cameo
4d
Save
Mark Applied
Hide
Software Developer - Senior (SMDC)
Huntsville, Alabama, United States
OnsiteFull Time
8+ YOERequires 8+ years of DoD software development, Secret clearance, U.S. citizenship, Security+ and computing environment certifications, and expertise with SharePoint, Microsoft 365, ASP.NET, C#, JavaScript, SQL Server, and web services.
Microsoft Copilot, SharePoint, Microsoft 365, PowerAutomate, PowerApps, ASP.NET, C#, JavaScript, JQuery, XML, CSS, SQL Server, web services, NIPRNet, SIPRNet, Army Regulation (AR) 25-1, DA PAM 25-1-1, DISA STIGs
Explore Jobs