436 principal engineer jobs at 64 companies in Centreville, MD
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Principal Engineer
Annapolis Junction or Laurel
$50k-$290k/yr OnsiteFull Time
The Swift Group: Providing engineering and cybersecurity services for national security missions.
15+ YOEProvide system engineering oversight for HPC environments: configure and maintain Linux clusters, support users, develop documentation, coordinate testing, use GitLab/GitLab CI; minimum 15 years technical experience and current government clearance with polygraph.
Linux, HPC, GitLab, GitLab CI
3mo
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Principal Engineer, Mechanical
Atlanta or Annapolis or Montgomery or Austin or Granbury or Fort Worth or Wharton or Alexander City or Perryman or Harrisburg
$151k-$168k/yr RemoteFull Time
10+ YOEBachelor's in engineering with 10 years experience; strong expertise in combustion turbines or steam turbines; leadership or senior-level credentials preferred.
Gas Turbine Technology, Engineering Analysis Tools
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Principal/Sr. Principal Engineer Systems
Baltimore, Maryland, United States
$109k-$204k/yr OnsiteFull Time
5+ YOE0.5+ MgmtActive Secret clearance, hardware design/test and BWI factory experience, leadership as IPT lead, bachelor's or master's in engineering or STEM (experience may substitute), 5+ years industry experience (principal) or 8+ (sr principal).
1mo
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Sr Principal Engineer Propulsion
Elkton, Maryland, United States
$136k-$204k/yr OnsiteFull Time
Bachelor's in Engineering (or higher) with relevant experience; ability to obtain a Secret clearance (US citizenship required); willingness to travel ~25%; experience with propulsion, systems engineering, and design practices preferred.
Siemens NX, Siemens Teamcenter United Architecture
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Senior Principal Software Engineer
Annapolis Junction, Maryland, United States
$183k-$193k/yr HybridFull Time
8+ YOEBachelor's in software engineering (or related STEM) with 10+ years experience or Master's with 8+ years; ability to obtain DoD TS/SCI clearance; strong software lifecycle, embedded/Linux development, Kubernetes/CI/CD experience.
CI/CD, Kubernetes, Helm, containerd, Docker, Podman, FPGA, Linux, Model Context Protocol (MCP), AI/ML
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Principal Engineer
Beltsville, Maryland, United States
$140k-$190k/yr OnsiteFull Time
10+ YOE10+ years engineering experience, B.S. (required) in mechanical/electrical/mechatronics, strong hands-on hardware and automation experience, 3D CAD skills, prototype line and equipment build experience, ability to lead root-cause investigations and mentor engineers.
3D CAD
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Principal Software Engineer
Annapolis Junction, Maryland, United States
$207k-$266k/yr OnsiteFull Time
12+ YOETop Secret clearance with Full Scope Polygraph; US citizenship; 12+ years of software engineering; BS or higher in Computer Engineering/CS; 5 years in SIGINT/IA/IT domains; expert Java (17+), REST, Spring Boot, SOLID OO design; leadership and mentoring.
Java, Spring Boot, REST, MongoDB, Docker, Kubernetes, Elasticsearch, Logstash, Kibana, PKI, TLS, SSL, Confluence, Jira
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Principal Software Engineer
Annapolis Junction, Maryland, United States
$190k-$280k/yr OnsiteFull Time
20+ YOEActive TS/SCI with Polygraph; US citizenship; 20+ years software engineering experience; bachelor's in CS or related; able to work independently and in a team; strong communication.
Java, NiFi, SQL, PostgreSQL, Elasticsearch
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Principal Software Engineer
Annapolis Junction, Maryland, United States
$215k-$250k/yr OnsiteFull Time
12+ YOE12 years of software engineering experience; BS in computer science; experience with Java, Spring Boot, MongoDB, Kubernetes, AWS; TS/SCI with Full Scope Polygraph clearance.
Java, Spring Boot, MongoDB, Kubernetes, Rancher, RKE2, AWS, RHEL, LLMs, S3/MinIO, Elasticsearch, NiFi
3mo
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Systems Engineer - Principal
Hanover, Maryland, United States
OnsiteFull Time
10+ YOEBachelor’s degree in engineering or computer science; 10+ years systems engineering for DoD programs; active DoD Top Secret/SCI clearance; travel willingness.
1mo
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Principal – Principal Systems MBD Engineer
Towson, Maryland, United States
$111k-$178k/yr HybridFull Time
10+ YOEMaster's or PhD in engineering or related field,10+ years plant/model-based development experience,expertise with multi-domain simulation and custom model development,experience with Dymola/TwinBuilder/Amesim/Modelica/Simulink/Simscape,scripting and model integration.
Dymola, TwinBuilder, Amesim, Modelica, Simulink, Simscape, FMU
2w
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Principal Mechanical Engineer
Laurel, Maryland, United States
$168k-$176k/yr OnsiteFull Time
10+ YOEBSME required, 10+ years mechanical engineering experience, SolidWorks and FEA proficiency, ASME Y14.100 drawing experience, DFMEA and prototype testing skills, strong communication and manufacturing knowledge.
SolidWorks, FEA, ASME Y14.100, DFMEA
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Principal Software Engineer
Hanover, Maryland, United States
$200k-$245k/yr OnsiteFull Time
20+ YOEUS citizen with TS/SCI+Poly, bachelor\u0019s degree in a technical discipline, 20+ years software engineering experience, advanced Python, Protocol Buffers, gRPC, Kubernetes, and Helm expertise.
Python, Protocol Buffers, gRPC, Kubernetes, Helm, Docker, Docker Buildx, GitLab CI/CD, Java, RESTful APIs, GNU Autotools, MongoDB, etcd, Elasticsearch, RabbitMQ
2mo
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Principal Software Engineer, Field Engineering
Aberdeen Proving Ground, Maryland, United States
$160k-$220k/yr OnsiteFull Time
5+ YOE5+ years hands-on software engineering; active Secret clearance; backend Go/Java/Rust; DevSecOps; Kubernetes; Bash/Python; Army-domain knowledge; customer-facing; Security+ readiness; willing to relocate to APG.
Go, Java, Rust, Kubernetes, Helm, CI/CD, Infrastructure as Code, Bash, Python, RMF
2mo
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Principal Software/Data Engineer
Laurel, Maryland, United States
OnsiteFull Time
19+ YOEExtensive software engineering experience; TS/SCI with polygraph; cloud infrastructure experience; strong Linux and Python; IT management understanding.
OpenStack, Linux, Python, Cloud infrastructure, COTS, GOTS
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Principal Software Engineer
Hanover, Maryland, United States
OnsiteFull Time
20+ YOEUS citizen with Top Secret/SCI+Poly, bachelor\u0002s degree in a technical field, 20+ years software engineering experience, advanced Python, Protocol Buffers, gRPC, Kubernetes, Helm, and distributed systems expertise.
Python, Protocol Buffers, gRPC, Kubernetes, Helm, Docker, Docker Buildx, GitLab, GitLab CI/CD, Java, RESTful APIs, GNU Autotools, MongoDB, etcd, Elasticsearch, RabbitMQ
3w
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Principal AI Engineer
Columbia, Maryland, United States
$144k-$200k/yr RemoteFull Time
10+ YOEBachelor's degree and 10+ years software engineering; experience building agentic AI, MCP integrations, LLM workflows, cloud deployments, Python, EMR/CI/CD knowledge, and ability to obtain public trust clearance.
Model Context Protocol (MCP), LLM, Python, Azure, AWS, Google Cloud Platform (GCP), Databricks, Snowflake, Spark, Strands Agents, LangGraph, CrewAI
1mo
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Systems Engineer-Principal
Annapolis Junction, Maryland, United States
OnsiteFull Time
9+ YOE6+ MgmtTS/SCI with polygraph; 9+ years relevant experience (or B.S.+11 years, M.S.+9 years, or 15 years without degree); 6+ years systems engineering leadership; vulnerability assessment and Zero Trust experience.
INCOSE, NIST SP 800-160, Zero Trust
3mo
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Principal Software Engineer (ONSITE)
Fulton, Maryland, United States
$118k-$225k/yr OnsiteFull Time
8+ YOESoftware development with OO languages (Java/C++), full lifecycle, CS fundamentals; 8+ years experience or advanced degree.
Java, C++, Angular, GraphQL, REST, Kafka, Typescript, Docker, Kubernetes, OpenShift, Redis, Postgresql, HTML/CSS
2mo
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383 - Principal Software Engineer
Annapolis Junction, Maryland, United States
$216k-$241k/yr OnsiteFull Time
11+ YOEBachelor's degree with 11+ years of relevant experience; strong software development and scripting skills; experience in security/Android/automation preferred.
Java, Python, JavaScript, Shell, Android, Selenium
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