HiringCafe
Join our community

188 principal engineer software development jobs at 68 companies in Rockville, MD

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
Verizon
VerizonNYSE: VZ: Provides wireless, fiber-optic internet, and telecommunications services globally.
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
Job PostingView all
6d
Save
Mark Applied
Hide
Principal Engineer-Software Development
Irving or Alpharetta or Ashburn or Temple Terrace or Basking Ridge
$121k-$231k/yr HybridFull Time
Verizon
VerizonNYSE: VZ: Provides wireless, broadband, and telecommunications services to customers.
6+ YOEBachelor's degree or 4+ years' 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
Job PostingView all
3mo
Save
Mark Applied
Hide
Principal Software Engineer
Waltham or North Bethesda
$200k-$225k/yr HybridFull Time
Xometry
XometryNASDAQ: XMTR: Operates an AI-powered marketplace for custom manufacturing and prototyping.
8+ YOE8–12+ years of software development; expert in Python, React/TypeScript, AWS; strong system architecture and enterprise integration experience; Bachelor's degree in CS/Engineering or related field.
Python, React, TypeScript, AWS
Job PostingView all
3mo
Save
Mark Applied
Hide
Principal Software Engineer
Arlington, Virginia, United States
OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Extensive software engineering leadership; delivery of large-scale distributed systems; cloud, AI/data platforms; strong communication and mentorship.
AWS, Cloud, DevOps, AI tooling, LLMs, distributed systems
Job PostingView all
3mo
Save
Mark Applied
Hide
Principal Software Engineer
Annapolis Junction, Maryland, United States
$190k-$280k/yr OnsiteFull Time
GliaCell Technologies
GliaCell Technologies: Software and systems engineering for the intelligence community.
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
Job PostingView all
3mo
Save
Mark Applied
Hide
Principal Software Engineer
Annapolis Junction, Maryland, United States
$215k-$250k/yr OnsiteFull Time
Envision Innovative Solutions
Envision Innovative Solutions: Provides technical engineering and mission support to government agencies.
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
Job PostingView all
3mo
Save
Mark Applied
Hide
Principal Software Engineer
Annapolis Junction, Maryland, United States
$207k-$266k/yr OnsiteFull Time
Intelliforce
Intelliforce: Provides engineering and technical solutions for the intelligence community.
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
Job PostingView all
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
Verizon
VerizonNYSE: VZ: Global provider of wireless, internet, and communication services.
6+ YOEBachelor's degree or 4+ years' experience and 6+ years of relevant experience. Requires Java, Spring Boot, JavaScript or TypeScript, React, 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
Job PostingView all
3mo
Save
Mark Applied
Hide
Principal Software Engineer (ONSITE)
Fulton, Maryland, United States
$118k-$225k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
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
Job PostingView all
3mo
Save
Mark Applied
Hide
383 - Principal Software Engineer
Annapolis Junction, Maryland, United States
$216k-$241k/yr OnsiteFull Time
ARSIEM
ARSIEM: Provides cybersecurity and software engineering to government agencies.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Senior Principal Software Engineer
Annapolis Junction, Maryland, United States
$183k-$193k/yr HybridFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Engineers secure communication and mission-critical defense technology systems.
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
Job PostingView all
2d
Save
Mark Applied
Hide
Principal / Sr. Principal Cyber Software Engineer
Chantilly, Virginia, United States
$125k-$235k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
5+ YOERequires active Top Secret/SCI clearance with polygraph, 5+ years of experience for Principal or 8+ for Senior Principal, proficiency in C# and C/C++, .NET Framework on Windows, PowerShell, Agile development, and software life cycle knowledge.
C#, C, C++, .NET Framework, Windows, PowerShell, Agile, Python, IDA Pro, Ghidra, Microsoft Azure DevOps, CI/CD
Job PostingView all
2mo
Save
Mark Applied
Hide
Principal Software/Data Engineer
Laurel, Maryland, United States
OnsiteFull Time
Themis Insight
Themis Insight: Provides technical consulting and data analytics for national security.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Principal Software Engineer TS/SCI w/Poly
Fort Meade, Maryland, United States
$200k-$255k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
Design, develop, test, and maintain low-level and high-performance software; proficiency with Python and ability to read C/C++ and x86 Assembly; experience with OS internals, compilers, and reverse engineering.
Python, C/C++, Assembly (x86)
Job PostingView all
4w
Save
Mark Applied
Hide
Principal Software Engineer
Columbia, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: AI-powered decision intelligence for complex mission environments.
11+ YOEBachelor's in CS or Software Engineering plus 11 years' relevant experience; TS/SCI w/Poly clearance; proven experience designing and delivering complex production software, making architecture decisions, and mentoring engineers.
Job PostingView all
3mo
Save
Mark Applied
Hide
Principal Software Automation Engineer
Gaithersburg, Maryland, United States
$117k-$178k/yr HybridFull Time
Meso Scale Diagnostics
Meso Scale Diagnostics: Manufacturer of high-sensitivity multiplexed immunoassay systems and reagents.
7+ YOEBachelor's or higher in a related field; 7+ years of automation software design; experience with industrial robots/PLCs, C#/.NET or Java/C++, XML/SQL, MATLAB; hardware/software integration; machine vision preferred.
C# .Net, Java, C++, XML, SQL, MATLAB, PLC, Ladder Logic, Structured Text, Machine Vision, GPUs, Networking
Job PostingView all
1mo
Save
Mark Applied
Hide
Principal Software Development Engineer - US Federal
Reston, Virginia, United States
$192k-$287k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
8+ YOEMust be U.S. citizen and able to obtain/maintain security clearance; 8+ years deploying large-scale applications with 3+ years cloud experience; expertise in automation, CI/CD, networking, and scripting; BS in CS or equivalent.
AWS, GCP, Azure, Terraform, Puppet, Ansible, Chef, CloudFormation, Docker, Kubernetes, Helm, Jenkins, Git, TeamCity, GitLab CI/CD, Go (Golang), Python, Ruby, Java, Bash, MySQL, PostgreSQL, Tomcat, ZooKeeper, Kafka, Jira, tcpdump
Job PostingView all
2mo
Save
Mark Applied
Hide
Principal Software Engineer
Fairfax, Virginia, United States
OnsiteFull Time
Trident Systems
Trident Systems: Develops high-performance electronics for space and defense.
9+ YOEBachelor's in CS/Software Eng/Data Science (or equivalent experience), 9+ years related experience (7+ with graduate degree) with Python, Linux/Windows, databases, JSON/REST, Git/SVN, and production-quality software development.
Python, Linux, Windows, Android, JSON, CSV, XML, REST APIs, sockets, message queues, PostgreSQL, SQLite, InfluxDB, object storage, Git, SVN, Flask, FastAPI, Django, Dash, Docker, CI/CD pipelines
Job PostingView all
4w
Save
Mark Applied
Hide
Principal Software Engineer
Columbia, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: Provides AI-powered decision intelligence software for national security.
11+ YOEBachelor's in CS or software engineering plus 11 years relevant experience, TS/SCI w/Poly clearance, design and deliver complex production software, proficiency with modern programming, CI, source control, automated testing, and strong communication.
Job PostingView all
1mo
Save
Mark Applied
Hide
Principal Software Engineer
Tysons, Virginia, United States
$168k-$214k/yr HybridFull Time
Alarm.com
Alarm.comNasdaq: ALRM: Provides cloud-based smart home security and automation solutions.
15+ YOEBachelor's or equivalent, 15+ years software development, strong object-oriented skills, C#/.NET experience preferred, database design, technical leadership and mentoring experience.
C#/.NET
Job PostingView all

Explore Jobs

Expand Your Job Search