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137 principal software engineer jobs at 48 companies in Maryland

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Senior Principal Software Engineer
Annapolis Junction, Maryland, United States
$183k-$193k/yr HybridFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNew York Stock Exchange: GD: Defense electronics manufacturer and systems integrator for mission-critical solutions.
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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1mo
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Principal Software Engineer
Rothschild or Alabama or Arkansas or Arizona or Colorado or Florida or Georgia or Illinois or Indiana or Kentucky or Louisiana or Maryland or Michigan or Minnesota or Missouri or Mississippi or North Carolina or New Jersey or Nevada or New York or Ohio or Oklahoma or Oregon or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin
$135k-$160k/yr RemoteFull Time
Foundation Finance Company
Foundation Finance Company: Private consumer finance providing point-of-sale home-improvement financing to contractors and homeowners nationwide.
7+ YOEBachelor's in CS/Engineering or related,7+ years development experience,technical leadership and architecture experience,mentoring skills,and strong presentation and stakeholder communication.
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3mo
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Principal Software/Data Engineer
Laurel, Maryland, United States
OnsiteFull Time
Themis Insight
Themis Insight: Private consulting firm providing business, IT, and analytics solutions to National Security clients.
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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Software Engineer / Principal Software Engineer (AHT)
Hollywood, Maryland, United States
$92k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
2+ YOESTEM bachelor's degree with 2+ years or master's degree with 0+ years for Software Engineer; principal level requires 5+ years. Secret clearance, Agile, Scrum Master, C# or Java, CI/CD, testing, and troubleshooting experience required.
Bamboo, Jenkins, C#, Java, Microsoft Windows, yaml, Python, PowerShell, Batch, Typescript, TestComplete, Bitbucket, git, CVS, .NET Framework, Windows Presentation Foundation (WPF), gRPC, REST, SQL, Jira, Confluence, Crucible, Fish-eye, Azure, AWS, Docker, Kubernetes, Ansible, Terraform, Chef, Puppet, DOORS
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3w
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Software Engineer / Principal Software Engineer (AHT)
Hollywood, Maryland, United States
$114k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
2+ YOERequires STEM bachelor's degree with 2+ years or master's degree with 0+ years for Software Engineer; 5+ years or master's with 3+ years for Principal. Requires Secret clearance, Agile, CI/CD, C#/Java, Windows, testing, scripting, and troubleshooting.
Bamboo, Jenkins, C#, Java, Microsoft Windows, YAML, Python, PowerShell, Batch, TypeScript, TestComplete, Bitbucket, Git, CVS, .NET Framework, Windows Presentation Foundation (WPF), gRPC, REST, SQL, Jira, Confluence, Crucible, Fish-eye, Azure, AWS, Docker, Kubernetes, Ansible, Terraform, Chef, Puppet, DOORS
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Principal Software Engineer
Columbia, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: Public U.S. defense technology providing AI-powered decision-intelligence software and services to government and commercial customers.
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.
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Principal Software Engineer
Columbia, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: Public U.S. defense technology providing AI-powered decision-intelligence software and services to government and commercial customers.
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.
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3mo
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Principal Engineer
Alabama or Arizona or Arkansas or California or Colorado or Connecticut or Florida or Georgia or Hawaii or Idaho or Illinois or Indiana or Iowa or Kansas or Kentucky or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Vermont or Virginia or Washington or Wisconsin
$210k-$262k/yr RemoteFull Time
Truepill
Truepill: A digital health and pharmacy-focused that connects patients with care providers and delivers technology-enabled diagnostics and pharmacy solutions.
10+ YOEBachelor's in CS or related; 10+ years software engineering experience with 3+ years at staff/principal level; deep expertise in AWS, PostgreSQL, Ruby on Rails, Python, TypeScript/JavaScript; experience building scalable, high-throughput systems; strong communication; U.S. work authorization required.
AWS, PostgreSQL, Ruby on Rails, Python, TypeScript, JavaScript, Slack, GSuite, Jira, HL7, FHIR, NCPDP, EHR
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Principal Software Engineer
Hanover, Maryland, United States
OnsiteFull Time
Triaplex
Triaplex: Private RF cybersecurity protecting government and defense customers from radio-frequency hacking.
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
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1w
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Principal Software Engineer
Hanover, Maryland, United States
OnsiteFull Time
Base-2 Solutions
Base-2 Solutions: Federal technology provider supporting national security and intelligence missions.
20+ YOERequires 20 years of software engineering experience, a computer science bachelor's degree or 24 years without one, and active Top Secret/SCI clearance with Full Scope Polygraph.
Java, C#, C++, JavaScript, Python, Scala, Ruby, Go, Eclipse, NetBeans, IntelliJ IDEA, PyCharm, Visual Studio, VS Code, Windows, Unix, Linux, macOS, Atlassian Suite, JIRA, Confluence, GitHub, ServiceNow, Spring, Angular, Bootstrap, Oracle, MySQL, MongoDB, Maven, Jenkins, Docker, Kubernetes, Git, SVN, CVS, AWS, Azure, Google Cloud
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1mo
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Principal Software Engineer
Germantown, Maryland, United States
$190k-$225k/yr OnsiteFull Time
LKC Technologies
LKC Technologies: Ophthalmic medical-device manufacturer providing visual electrophysiology systems to clinicians, researchers, and veterinarians.
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
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Principal Software Engineer TS/SCI w/Poly
Fort Meade, Maryland, United States
$200k-$255k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission-critical services.
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)
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Principal Software Engineer
Annapolis Junction, Maryland, United States
$200k-$280k/yr HybridFull Time
GliaCell Technologies
GliaCell Technologies: Private software engineering firm delivering cloud, cybersecurity, AI, and enterprise solutions for U.S. government and commercial customers.
20+ YOEActive or rein-statable TS/SCI with Polygraph, U.S. citizenship, 20+ years software engineering experience, BS in Computer Science (or 4 additional years SWE experience), full-stack development with backend focus, strong communication.
Java, JavaScript, Spring, SpringBoot, JMS, MongoDB, Amazon RDS, AWS, Docker, Kubernetes, EKS, Rancher, Tomcat, ElasticSearch, CockroachDB, REST, Kibana, Alfresco, Node, Svelt, React, Angular
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2w
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Senior Principal Software Engineer
United States or Phoenix or Dallas or Charlotte or California or Connecticut or New York or Colorado or Illinois or Minnesota or Washington or Nevada or Maryland or New Jersey or Hawaii or District of Columbia or North Dakota or Mississippi or Rhode Island or Vermont or Wyoming
$150k-$226k/yr RemoteFull Time
Shutterfly
Shutterfly: Digital retailer and manufacturer of personalized photo products.
12+ YOEBachelor's in engineering or computer science and 12+ years of software engineering experience, distributed systems expertise, large-scale architecture, cloud operations, coding, and technical strategy leadership.
LLMs, vector databases, orchestration frameworks, A/B testing
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1mo
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Principal Software Engineer
United States or Vienna or Baltimore
$220k-$372k/yr OnsiteFull Time
NetApp
NetAppNASDAQ: NTAP: Global cloud-led, data-centric software.
12+ YOE12+ years software development experience with expertise in cloud-native, storage and data management; proficiency in NFS/SMB/iSCSI and programming in C/C++/Golang/Node.js/Python.
C, C++, Golang, Node.js, Python, NFS, SMB, iSCSI, Docker, Kubernetes, GitHub, Jenkins, Ansible
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1mo
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Principal Software Engineer
Baltimore or Seattle or Vienna or United States or United States
$220k-$372k/yr HybridFull Time
NetApp
NetAppNASDAQ: NTAP: Global cloud-led, data-centric software.
12+ YOE12+ years software development, 5+ years data management/storage experience, 3+ years cloud-native and SOA expertise, proficiency with storage protocols and listed programming tools, strong communication and architectural skills.
C, C++, Golang, Node.js, Python, Docker, Kubernetes, GitHub, Jenkins, Ansible, CI build systems, Automated Testing, NFS, SMB, iSCSI
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2mo
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397 - Principal Software Engineer
Fort Meade or Annapolis Junction
$216k-$241k/yr OnsiteFull Time
ARSIEM Corporation
ARSIEM Corporation: Private IT consulting and engineering firm providing cybersecurity and software services to U.S. government agencies.
11+ YOEBachelor's degree plus 11 years of relevant experience or equivalent; Python proficiency; C/C++ and x86 Assembly comprehension; software architecture, OS internals, debugging, malware analysis, and reverse engineering experience.
Python, C, C++, Assembly, x86
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Principal Platform Software Engineer
Vienna or Virginia or Maryland or United States
OnsiteFull Time
Oracle Corporation
Oracle CorporationNYSE: ORCL: Cloud infrastructure and enterprise software solutions provider.
6+ YOESenior software engineer with expertise in OCI integrations, API platforms, observability, automation, and production operations; coding/scripting (6+ years), databases (4+ years), cloud experience (3+ years).
Oracle Cloud Infrastructure (OCI), Oracle Integration Cloud (OIC Gen3), OCI API Gateway, OCI GoldenGate, OCI Logging Analytics, REST APIs, JSON, XML, OAuth 2.0, JWT, SSL/TLS, Terraform, Python, Shell scripting, CI/CD, SQL, C/C++, JavaScript, Dynatrace, Grafana, Splunk, Kubernetes, Oracle Banking Cloud Services (OBCS)
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2mo
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Software Engineer Principal II
Fort Meade or Maryland or United States
$150k-$254k/yr OnsiteFull Time
BAE Systems
BAE SystemsLSE: BA.: Global defense, aerospace, and security technology.
8+ YOEMust possess Top Secret/SCI with polygraph, Bachelor's in a related field, 8+ years software development experience with cleared/intelligence community work, and experience coding, testing, and deploying secure applications.
Docker, Java, HPC, AI agents, QPU, GPU
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2mo
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Software Engineer, Principal - TS/SCI
Centreville or Herndon or Columbia or Augusta or San Antonio or United States
$125k-$225k/yr HybridFull Time
Parsons
ParsonsNYSE: PSN: Technology and engineering solutions for defense and infrastructure.
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
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