1mo
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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
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
2w
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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
7+ YOEBachelor's in computer science/engineering,7+ years development experience,technical certifications a plus,ability to present to senior leadership and respond to stakeholder inquiries.
1mo
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Principal Software Engineer - AI
Woodland Hills or Los Angeles or Alabama or Arizona or California or Colorado or Connecticut or Florida or Georgia or Illinois or Indiana or Kentucky or Massachusetts or Michigan or North Carolina or New Jersey or Nevada or New York or Ohio or Pennsylvania or South Carolina or Texas or Utah or Virginia
$200k-$230k/yr HybridFull Time
10+ YOE10+ years software engineering experience, 5+ years backend work in Python or PHP, expertise building LLM-based AI agent systems, production LLM API integration, MySQL proficiency, and automated testing for AI workflows.
LLM, OpenAI, Claude, GitHub Copilot, MySQL, Python, Django, Flask, PHP, Symfony, Laravel, React
2w
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Principal Software Engineer
Rhode Island or Mississippi or Montana or North Carolina or Louisiana or Maryland or Maine or Minnesota or Nebraska or Missouri or North Dakota or New York or New Jersey or New Mexico or Nevada or Ohio or South Carolina or Texas or South Dakota or Vermont or Tennessee or Virginia or Washington or Utah or Wisconsin or West Virginia or Oregon or Wyoming or Oklahoma or Pennsylvania or Colorado or Alabama or Arizona or California or Connecticut or District of Columbia or Florida or Iowa or Arkansas or Idaho or Illinois or Kansas or Delaware or Georgia or Indiana or Kentucky or Michigan or Massachusetts or New Hampshire
$144k-$288k/yr RemoteFull Time
10+ YOE10+ years IT experience, 7+ years Java/Swift/SwiftUI/Kotlin, 5+ years mobile architecture experience, CI/CD and testing experience, 1+ year AI/ML experience, Flutter and EM/ML framework familiarity.
Java, Swift, SwiftUI, Kotlin, MVVM, Clean Architecture, Flutter, TensorFlow, PyTorch, Scikit-learn, JavaScript, AngularJS, Angular, NodeJS, LangSmith, Braintrust, Promptfoo, Claude Code, Codex, Cursor, GitHub Copilot, Oracle
2d
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Principal Software Engineer
Pennsylvania or Maryland or Washington or North Carolina or Louisiana or Kentucky or Kansas or Indiana or Illinois or Georgia or Iowa or Florida or Colorado or California or Delaware or Connecticut or Arkansas or Arizona or Alabama or Alaska or Nevada or Vermont or Tennessee or Idaho or Oklahoma or Hawaii or Mississippi or Utah or New Hampshire or New Mexico or Wyoming or North Dakota or South Dakota or Rhode Island or West Virginia or Montana or Texas or District of Columbia or Ohio or New Jersey or Oregon or South Carolina or Missouri or Virginia or Massachusetts or Nebraska or Minnesota or Michigan or Wisconsin or New York or Maine
$129k-$215k/yr RemoteFull Time
9+ YOE9+ years experience designing scalable, highly available systems; proficiency in multiple programming languages and web services; bachelor\u001fs degree in CS or related; strong architecture, coding, and mentorship skills.
Java, Python, JavaScript, ACE, IIB/ITX, Informatica, React, Angular v4+, NodeJS, NoSQL, HTML5, CSS, Google Cloud Platform, Amazon Web Services, Django, Flask, C/C++, C#, Objective C, Go
3w
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Principal Software Engineer
Phoenix or Las Vegas or Miami
HybridFull Time
10+ YOE10+ years building cloud-native distributed backend/platform systems, delivering greenfield products, experience with AI/LLM components, strong system design and production delivery skills.
GenAI, LLMs, AI/ML, DAG
1mo
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Principal Software Engineer - AI-First Development
Las Vegas or United States
RemoteFull Time
8+ YOE8+ years software development experience, bachelor’s degree or equivalent, demonstrated technical leadership, daily use of AI-assisted development tools, strong knowledge of major programming ecosystems, cloud platforms, databases, and DevOps/CI-CD practices.
Claude Code, Cursor, GitHub Copilot, Windsurf, .NET, C#, JavaScript, TypeScript, Python, Java, Go, Azure, AWS, GCP, Kafka, RabbitMQ, Azure Service Bus, MCP, OWASP
3w
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Principal Tetragon Software Engineer
San Jose or North Dakota or Montana or Maine or Ohio or Nebraska or Louisiana or Texas or Nevada or Hawaii or Georgia or Mississippi or Connecticut or Colorado or Wyoming or Wisconsin or West Virginia or Maryland or California or Vermont or New York or New Jersey or Arkansas or South Dakota or Pennsylvania or Michigan or Indiana or Idaho or Arizona or New Mexico or New Hampshire or Kentucky or Alabama or South Carolina or Illinois or Missouri or Massachusetts or Iowa or Tennessee or North Carolina or Minnesota or Kansas or Alaska or Rhode Island or Delaware or Washington or Virginia or Utah or Oregon or Florida or Oklahoma
$231k-$332k/yr RemoteFull Time
10+ YOE10+ years systems programming experience; strong Go and eBPF knowledge; Linux, distributed systems, and kernel-level experience; architecture and performance optimization skills.
Go, eBPF, C, C++, Java, Python, Rust, Kubernetes, Cilium, Tetragon, Splunk, Linux
1d
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Principal Software Engineer (Security & Policy Platform) (Remote)
San Jose or North Dakota or Montana or Maine or Ohio or Nebraska or Louisiana or Texas or Nevada or Hawaii or Georgia or Mississippi or Connecticut or Colorado or Wyoming or Wisconsin or West Virginia or Maryland or California or Vermont or New York or New Jersey or Arkansas or South Dakota or Pennsylvania or Michigan or Indiana or Idaho or Arizona or New Mexico or New Hampshire or Kentucky or Alabama or South Carolina or Illinois or Missouri or Massachusetts or Iowa or Tennessee or North Carolina or Minnesota or Kansas or Alaska or Rhode Island or Delaware or Washington or Virginia or Utah or Oregon or Florida or Oklahoma
$251k-$363k/yr RemoteFull Time
12+ YOEBachelor's in CS/EE or related and 12+ years designing large-scale distributed systems; experience with cloud/hybrid, security and privacy for platform systems; production coding in Go/Rust/C++; strong communication.
Go, Rust, C++
1mo
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Principal Machine Learning Engineer
Denver or Arizona or Arkansas or California or Florida or Georgia or Illinois or Indiana or Iowa or Kansas or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Montana or Nevada or New Jersey or New York or North Carolina or Ohio or Oklahoma or Pennsylvania or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin
$228k-$253k/yr HybridFull Time
10+ YOE10+ years building and deploying large-scale ML systems; expertise with cloud (AWS), big-data tools, ML frameworks, and leading ML strategy and mentoring engineers.
Python, Apache Spark, Databricks, AWS, Amazon SageMaker, scikit-learn, TensorFlow, Spark ML, Apache Kafka
1w
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Senior Principal Full Stack Engineer
Las Vegas, Nevada, United States
$171k-$201k/yr OnsiteFull Time
9+ YOE12+ years development experience (9+ in software development), Bachelor's degree, deep expertise in Java and distributed systems, experience with microservices, CI/CD, cloud platforms, and strong design and leadership skills.
Java, Node.js, Meteor, PHP 7.x, C#, C++, Python, HTML5, CSS3, AJAX, JavaScript, JQuery, AngularJS, ReactJS/Redux, Backbone, JBoss, Wildfly, Spring Boot 2.0, Tomcat, Linux, HTTP, SOAP, REST, XML, JSON, AMQ, RabbitMQ, zeromq, Kafka, EJB, Spring Framework, Maven, JUnit, TestNG, Mockito, Jasmine, Mocha, Jenkins, Bamboo, TravisCI, TeamCity, Kubernetes, Docker, Ansible, AWS, OpenStack, Azure, Google Cloud, Consul, Eureka, Zookeeper, Hibernate, Sequelize, Doctrine, Mongoose, SumoLogic, Splunk, Logstash, ELK, DataDog, DB2, MySQL, Mongo, Cassandra, Git
3w
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Principal Engineer Tech Lead, Embodied AI & Off-Board Performance Evaluation
Boston or Las Vegas or Pittsburgh or United States
$200k-$275k/yr HybridFull Time
10+ YOE10+ years software/AI/AV experience, Bachelor's in CS/Engineering/Robotics, expertise with LLMs/VLMs, Python (expert), AV performance metrics, vector DBs, cloud infrastructure; strong analytical and system-design skills.
Large Language Models (LLMs), Vision-Language Models (VLMs), LanceDB, Ray, AWS, GCP, Python, C++
2w
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Senior/Staff/Principal Backend Engineer, Platform & Data Ingestion
San Francisco or New York City or Arizona or California or Colorado or Connecticut or Florida or Georgia or Illinois or Louisiana or Massachusetts or Minnesota or North Carolina or New Jersey or Nevada or New York or Ohio or Pennsylvania or South Carolina or Tennessee or Texas or Washington or District of Columbia
$150k-$236k/yr HybridFull Time
4+ YOE4+ years building scalable APIs, microservices, and high-volume ETL; experience with Scala/Elixir or typed languages, OpenSearch/Elasticsearch, OCR/document parsing, SQL and data modeling; strong communication skills.
Scala, Elixir, Java, C#, C++, OpenSearch, Elasticsearch, OCR, Postgres, MySQL, Databricks, Snowflake, BigQuery, AWS, GCP, Amazon SQS, Kafka, Google PubSub, TypeScript, Angular, React
2mo
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Principal Hydrogeologist
Seattle or Highlands Ranch or Reno or Salt Lake City or Albuquerque
$134k-$201k/yr HybridFull Time
15+ YOEMS in geology/hydrogeology/engineering/environmental science, 15+ years experience, PE or RG/PG, HAZWOPER 40-hour, proficient with Microsoft Office, clean driving record; travel 5–20% and groundwater modeling/software experience preferred.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint
2w
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Data Scientist, Principal
Oakland or Washington or Ohio or District of Columbia or California or Long Beach or Arizona or Colorado or Connecticut or Florida or Georgia or Maryland or Minnesota or Nevada or Oregon or El Dorado Hills or San Diego or Woodland Hills or Alabama or Illinois or Virginia or Wisconsin or Texas or New York
$182k-$273k/yr HybridFull Time
8+ YOEAdvanced experience in applied AI/ML and software development, strong Python engineering, hands-on with deep learning and LLM frameworks, experience building production AI applications and leading ML design.
Python, PyTorch, TensorFlow, LangChain, LangGraph, SQL, Spark, Azure, Google Cloud, AWS
2mo
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Principal Post Sales Solution Consultant
Miami or New York or Seattle or Washington DC or San Francisco or Carson City
$160k-$200k/yr HybridFull Time
10+ YOE10+ years in professional services or sales engineering; 5+ years in relevant roles; bachelor's in related field; SaaS/enterprise software experience; strong communication; willing to travel up to 30%.
RESTful APIs, Machine Learning, Data Science, RDBMS, SDLC
1mo
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Space Operations Specialist Principal - Low Observable (LO) Mission Planner (Creech AFB, NV)
Indian Springs or Nevada or United States
$105k-$179k/yr OnsiteFull Time
6+ YOERequires Top Secret/SCI clearance and U.S. citizenship; BS/BA in related field plus 6+ years related experience (or equivalent); 4.5+ years LO mission planning experience within last 2 years; Air defense/EW experience; operator experience with airborne LO mission planning software.
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