220 principal software engineer jobs at 85 companies in Tysons, VA
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Principal Software Engineer
Arlington, Virginia, United States
OnsiteFull Time
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
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Principal Software Engineer
Bethesda or Waltham
$164k-$257k/yr HybridFull Time
8+ YOE8+ years software engineering; production-grade APIs; GraphQL; Node.js; TypeScript; Go; OAuth2/JWT; security; scalable SaaS APIs.
GraphQL, Node.js, TypeScript, Go, Jenkins, ArgoCD, Datadog, OAuth 2.0, JWT
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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
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Principal Software Engineer
Waltham or North Bethesda
$200k-$225k/yr HybridFull Time
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
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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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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, Mission Software
Arvada or Los Angeles or San Francisco or Seattle or Washington
HybridFull Time
8+ YOE3+ MgmtLead complex software and systems engineering in aerospace/defense; architecture focus; leadership; government programs; security clearance readiness.
Programming, Software Architecture, Distributed Systems, APIs, Operator tooling, Mission-critical applications
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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 (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
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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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Principal Software Development Engineer
Reston, Virginia, United States
$185k-$277k/yr HybridFull Time
9+ YOE9+ years in software engineering; Python/Go/Java; SDLC mastery; architecture and data modeling; security risk automation; leading roadmaps and mentoring.
Python, Go, Java, Git, APIs, Data pipelines, ETL/ELT, SRS, PoCs
3mo
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Principal Software Automation Engineer
Gaithersburg, Maryland, United States
$117k-$178k/yr HybridFull Time
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
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Principal Software Engineer
Columbia, Maryland, United States
OnsiteFull Time
11+ YOETS/SCI w/Poly, Bachelor's in CS or Software Engineering plus 11 years' experience (or equivalent); strong software architecture, modern programming, CI/CD, automated testing, and stakeholder communication skills.
1d
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Principal Software Engineer
Hanover, Maryland, United States
OnsiteFull Time
20+ YOE20 years software engineering experience, bachelor's in CS or related (or equivalent experience), active Top Secret/SCI with Full Scope Polygraph, proficiency in multiple programming languages and tools.
Java, C#, C++, JavaScript, Python, Scala, Ruby, Go, Eclipse, NetBeans, IntelliJ IDEA, PyCharm, Microsoft 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
1w
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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
2w
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Principal Software Engineer
McLean or Raleigh or Irving or Iselin
$159k-$305k/yr OnsiteFull Time
7+ YOE7+ years software engineering experience; strong in backend and frontend development (Java, C#, JavaScript); experience with databases, cloud providers, and Agile; Golang, Temporal, and AI model experience desired; excellent communication.
Java, C#, JavaScript, Golang, Temporal, Microsoft Azure, Google Cloud Platform, Amazon Web Services
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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
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Principal or Senior Principal Embedded Software Engineer
Annapolis, Maryland, United States
$109k-$204k/yr OnsiteFull Time
5+ YOEB.S. in CS/EE/CE or equivalent with 5+ yrs (Principal) or 8+ yrs (Senior Principal) embedded real-time software experience; proficiency in C++, Python, Linux/Windows; technical lead and microelectronics programming experience; US citizen able to obtain TS/SCI with poly.
C++, Python, Linux, Windows, Jira, Confluence, Bitbucket, JavaScript, Qt, CUDA, ArrayFire, Docker, k8s
3w
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Principal Software Engineer TS/SCI w/Poly
Fort Meade, Maryland, United States
$200k-$255k/yr OnsiteFull Time
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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