48 sr principal software engineer jobs at 20 companies in Hagerstown, MD
3mo
Save
Mark Applied
Hide
Principal Antenna Test / Sr Principal Antenna Test Engineer
Sykesville, Maryland, United States
$109k-$163k/yr OnsiteFull Time
5+ YOEBS/MS in Electrical Eng; 5+ years (Principal) or 8+ years (Sr Principal) in RF/test; RF test equipment; software dev in C#, VB, MATLAB; DoD Secret clearance with SAP; US citizenship.
Oscilloscope, Power meter, Spectrum analyzer, Signal generator, C#, Visual Basic, MATLAB
1mo
Save
Mark Applied
Hide
Sr Principal Engineer Embedded Software
Sterling, Virginia, United States
$142k-$213k/yr OnsiteFull Time
4+ YOEUS citizen able to obtain/maintain Top Secret/SCI clearance; advanced degree in EE/CE or related STEM with 4–8+ years embedded software experience; proficiency in C/C++, Python, Windows/Linux scripting, and revision control; hardware-in-the-loop simulation experience.
C/C++, Python, Windows, Linux, Subversion, Git, Jenkins, Jira, Bitbucket, National Instruments, SpaceWire, MIL-STD-1553, RS-422, UART
1w
Save
Mark Applied
Hide
Principal Engineer-Software Development
Irving or Alpharetta or Ashburn or Temple Terrace or Basking Ridge
$121k-$231k/yr HybridFull Time
6+ YOEBachelor's degree or 4+ years of work experience and 6+ years of relevant experience. Requires Java, Spring Boot, JavaScript/TypeScript, React, software architecture, microservices, REST APIs, and distributed systems expertise.
Java, Spring Boot, React, JavaScript, TypeScript, Apigee, Kibana, GIT, Jenkins, AWS, GCP, Azure, Docker, Kubernetes, Kafka, SQS, Kinesis, RabbitMQ, Redis
1w
Save
Mark Applied
Hide
Principal Engineer-Software Development
Irving or Alpharetta or Ashburn or Temple Terrace or Basking Ridge
$121k-$231k/yr HybridFull Time
6+ YOEBachelor's degree or equivalent experience and 6+ years of relevant experience. Requires Java, Spring Boot, JavaScript/TypeScript, React, software architecture, microservices, REST APIs, and distributed systems expertise.
Java, Spring Boot, React, JavaScript, TypeScript, Apigee, Kibana, GIT, Jenkins, AWS, GCP, Azure, Docker, Kubernetes, Kafka, SQS, Kinesis, RabbitMQ, Redis
1mo
Save
Mark Applied
Hide
Principal Software Engineer
Germantown, Maryland, United States
$190k-$225k/yr OnsiteFull Time
10+ YOEBachelor's in engineering or CS, 10+ years software experience including embedded systems, image/video processing, real-time/microsecond control, proficiency in C/C++, and strong hardware collaboration and mentoring skills.
C/C++, continuous integration, DevOps
2w
Save
Mark Applied
Hide
Principal Software Engineer
Colorado Springs or Dayton or Herndon
$175k-$200k/yr HybridFull Time
Software development experience with Unix/Linux, microservices, messaging, REST APIs, Agile/DevOps, Python, Java, JavaScript/React, and Cucumber; ability to obtain and maintain Top Secret clearance.
Unix, Linux, RabbitMQ, REST APIs, Agile, DevOps, Python, Java, JavaScript, React, Cucumber, CI/CD, GitHub, GitLab, Jira, Sphinx, NASA GMAT
1mo
Save
Mark Applied
Hide
Principal Software Engineer
Ashburn, Virginia, United States
HybridFull Time
8+ YOE8+ years embedded software experience (or 6+ with MS), strong C and C++, embedded systems and debugging, Unix/Linux proficiency, unit testing, ability to work with hardware teams; eligible for DOD security clearance.
C, C++, Unix, Linux, yocto, JIRA, Confluence, Git
1w
Save
Mark Applied
Hide
Principal Engineer-Software Development
Irving or Alpharetta or Ashburn or Temple Terrace or Basking Ridge
$121k-$231k/yr HybridFull Time
6+ YOEBachelor's degree or equivalent experience; 6+ years relevant experience; Java, Spring Boot, JavaScript/TypeScript, and React expertise; knowledge of architecture, microservices, REST APIs, and scalable distributed systems.
Java, Spring Boot, React, JavaScript, TypeScript, Apigee, Kibana, GIT, Jenkins, AWS, GCP, Azure, Docker, Kubernetes, Kafka, SQS, Kinesis, RabbitMQ, Redis
1mo
Save
Mark Applied
Hide
Software Engineer, Principal - TS/SCI
Centreville or Herndon or Columbia or Augusta or San Antonio or United States
$125k-$225k/yr HybridFull Time
10+ YOE10+ years software engineering experience, C/C++ proficiency, strong Windows knowledge, Git familiarity, active Top Secret/SCI clearance, bachelor’s in CS preferred, documentation and collaboration skills.
C/C++, Git, Python, CI/CD, Windows APIs, win32, Windows Native
1mo
Save
Mark Applied
Hide
Principal Software Engineer
Ashburn or Massachusetts
OnsiteFull Time
5+ YOEBachelor's in EE/Comp Eng (or equivalent), 5+ years experience, strong C, Linux/VxWorks, device driver and firmware/BIOS development, hardware verification, familiarity with git/svn and JIRA, secret clearance desirable.
C, Linux, VxWorks, Yocto Linux, Xilinx PetaLinux, git, svn, JIRA
1mo
Save
Mark Applied
Hide
Principal Software Engineer
Herndon or Columbia
OnsiteFull Time
TS/SCI clearance required; bachelor's in CS or equivalent experience; experience with Python or GoLang, Kubernetes, containerization (Docker/Podman), GitOps/CI/CD/IaC, and modern DevSecOps practices; architecture and mentoring experience.
Python, GoLang, Kubernetes (K8s), CI/CD, IaC, GitOps, Docker, Podman, Crossplane, Backstage, DevSecOps, Microsoft Azure, Amazon Web Services (AWS)
2mo
Save
Mark Applied
Hide
(USA) Principal, Software Engineer, Information Security
Bentonville or Herndon
$110k-$220k/yr OnsiteFull Time
5+ YOEBachelor's degree in a relevant field and 5 years of software engineering experience, or 7 years of related experience; expertise in Java, Python, security, cloud, automation, and DevSecOps.
Java, Python, Public Key Infrastructure (PKI), Hardware Security Modules (HSM), CI/CD, AWS, Microsoft Azure, Google Cloud Platform (GCP), Kubernetes, Docker, cert-manager, ACME, Terraform, Ansible, CloudFormation, API
1w
Save
Mark Applied
Hide
Principal Engineer
United States or Herndon
$160k-$190k/yr OnsiteFull Time
8+ YOERequires 8+ years of software engineering experience, large-scale distributed systems expertise, backend development with Java or Go, APIs, cloud platforms, data stores, caching, CI/CD, and strong communication skills.
Java, Go, REST, gRPC, CI/CD, DNS, Motivosity, LinkedIn Learning
2mo
Save
Mark Applied
Hide
Senior Principal Software Engineer (Frederick, MD, US, 21703)
Frederick, Maryland, United States
OnsiteFull Time
10+ YOEBachelor's in engineering, 10+ years experience, mastery of multiple engineering disciplines, ability to design/develop/debug software/systems (real-time, firmware, signal processing, databases, OS), lead projects, mentor engineers, and support business development.
Image and Signal Processing, Real-time, Firmware, Nuclear/Hi-Rel, FAA Certified, Database Design, Operating Systems, compilers, routers, networks, databases, Internet-related tools
1d
Save
Mark Applied
Hide
Principal Software Engineer - Radar Modeling (Onsite)
Sterling, Virginia, United States
$118k-$225k/yr OnsiteFull Time
8+ YOESTEM degree with 8+ years of relevant experience or advanced degree with 5+ years; radar software expertise; C/C++ and object-oriented programming; leadership experience; ability to obtain DoD clearance.
C, C++, Wireshark, Agile
2mo
Save
Mark Applied
Hide
(USA) Principal, Software Engineer, Information Security
Bentonville or Herndon
$110k-$264k/yr OnsiteFull Time
5+ YOEBachelor's in related field +5 years or 7 years' software engineering experience. Expertise in Java and Python, PKI/HSM, cloud platforms, CI/CD, cert-manager/ACME, Terraform/Ansible/CloudFormation, and API development.
Java, Python, Public Key Infrastructure, Hardware Security Modules, AWS, Azure, GCP, Kubernetes, cert-manager, ACME, Terraform, Ansible, CloudFormation, CI/CD, API
1d
Save
Mark Applied
Hide
Principal Software Engineer, AI Agents & Generative AI
Herndon or United States or Colorado or New Jersey or Delaware or Washington or California
$150k-$220k/yr HybridFull Time
7+ YOEBachelor's degree in a relevant field, 7 years of relevant technology experience, U.S. citizenship, cloud data and ML pipeline knowledge, and software development experience with Python or JavaScript.
Google Cloud, Google ADK, LangChain, LangGraph, GPT-4, Claude, Gemini, Codex, Gemini CLI, Claude Code, Python, JavaScript, AWS, GCP, CI/CD
3w
Save
Mark Applied
Hide
Principal Software Engineering Lead (eCOA) - Evinova
Gaithersburg, Maryland, United States
$166k-$217k/yr HybridFull Time
8+ YOE3+ MgmtBachelor's/Master's in CS or engineering (or equivalent),8+ years software engineering,3+ years leading teams,proficiency with React/React Native,Node.js/Java,AWS,and AI-assisted development tools;regulated software experience preferred.
React, React Native, Node.js, Java, AWS, GitHub Copilot, Claude, Cursor
3mo
Save
Mark Applied
Hide
Senior Principal Cyber Software Engineer (iOS)
Sterling, Virginia, United States
OnsiteFull Time
10+ YOETS/SCI/Top Secret clearance; 10+ years C/C++ on Unix/Linux; iOS development; Objective-C; Unix features; reverse engineering tools like Hex-Rays and Ghidra.
iOS, C/C++, Unix/Linux, Objective-C, Ghidra, Hex-Rays, Corellium, Docker, Git
1mo
Save
Mark Applied
Hide
Principal Software Developer Architect
Herndon, Virginia, United States
$180k-$200k/yr RemoteFull Time
10+ YOE10+ years software development and system architecture experience; Bachelor's (or Master's with 5+ years); Azure/AWS/cloud and DevOps experience; Agile/SCRUM; strong communication and problem-solving; ability to obtain Public Trust clearance.
Azure, AWS, Azure DevOps, ALM, Microsoft Office Word, Microsoft Excel, Microsoft PowerPoint, Microsoft SharePoint, RichFaces, PrimeFaces