135 staff software engineer jobs at 51 companies in Frederick, CO

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
2mo
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Staff Software Engineer
Denver, Colorado, United States
$185k-$225k/yr OnsiteFull Time
Performance Drone Works
Performance Drone Works: Manufacturer of autonomous, tactical unmanned aerial systems for defense.
7+ YOELead software engineering, define standards, mentor engineers, and drive cross-team architectural decisions; strong C++, Qt, embedded Linux, and cross-platform UI experience.
C++, Qt, QML, QtWidgets, QMake, CMake, REST, JSON, Linux, Android
1mo
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Staff Software Engineer
Columbus or Austin or Denver
HybridFull Time
Lower
Lower: Provides digital mortgage lending and homeownership financial services.
8+ YOE8+ years in software engineering; full-stack with backend/frontend; TypeScript, React, AWS, Next.js, Node.js, PostgreSQL; AI-assisted tooling experience; strong CS fundamentals; fintech/lending experience a plus.
TypeScript, React, AWS, Next.js, Node.js, PostgreSQL, Cursor, Claude Code, Codex, GitHub Copilot
1mo
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Staff Software Engineer, LowerOS
Columbus or Austin or Denver
HybridFull Time
Lower
Lower: Digital mortgage lending and comprehensive homeownership fintech services
8+ YOE8+ years in software engineering; full-stack expertise; TypeScript/React/AWS/Next.js/Node.js/Postgres; AI-assisted tooling experience; strong CS foundations.
TypeScript, React, AWS, Next.js, Node.js, Postgres, Cursor, Claude Code, Codex, GitHub Copilot
2mo
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Staff Software Engineer - Payload
Lafayette, Colorado, United States
$170k-$220k/yr OnsiteFull Time
EOI Space
EOI Space: Developing and deploying VLEO satellite constellations for Earth imagery.
10+ YOEBachelor’s in CS/SE/aerospace; 10+ years software engineering; GPU/edge compute experience; Kubernetes; Python/C/C++/Go; NVIDIA Jetson/CUDA a plus.
Python, C++, Go, Kubernetes, NVIDIA Jetson, CUDA, Containerization, OS-level programming, embedded systems
3w
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Staff Software Engineer
San Francisco or Denver or Nashville or Santiago
$190k-$264k/yr HybridFull Time
Checkr
Checkr: AI-powered platform for background checks and identity verification.
10+ YOE10+ years software development experience, 3+ years project leadership; backend expertise (Ruby, Node.js), frontend familiarity (JavaScript, React); experience building scalable systems with automated testing and observability; strong communication and mentoring skills.
Ruby, Node.js, JavaScript, React
2mo
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Staff software engineer, full-stack
Denver, Colorado, United States
$215k-$254k/yr OnsiteFull Time
Watershed
Watershed: Software platform for corporate carbon accounting and climate reporting.
8+ YOE8+ years of software engineering experience; Node.js web development or data pipelines; experience building scalable software from user needs; willingness to work in an office four days a week.
Node.js, APIs, Data pipelines, JavaScript
2mo
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Staff Embedded Software Engineer
Golden, Colorado, United States
$137k-$180k/yr OnsiteFull Time
Lunar Outpost
Lunar Outpost: Develops autonomous robotic systems and rovers for lunar exploration.
5+ YOE5+ years embedded software or avionics; BS in computer or electrical engineering; RTOS experience (VxWorks/RTEMS/FreeRTOS); proficient in C for embedded systems; experience with flight software frameworks; US person.
VxWorks, RTEMS, FreeRTOS, C, C++, NASA cFS
1mo
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Staff Software Engineer, Developer Productivity Async
Denver or San Francisco or New York or Los Angeles or Seattle or Toronto
$189k-$250k/yr HybridFull Time
Gusto
Gusto: Cloud-based payroll and HR software for small businesses.
10+ YOE10+ years software development; strong Ruby on Rails; experience with asynchronous processing (Sidekiq/Kafka); tooling for large engineering teams; AI-enabled productivity improvements.
Ruby, Rails, Sidekiq, Kafka, LLMs, AI tools
2mo
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Staff Software Engineer (Boulder, CO)
Boulder, Colorado, United States
HybridFull Time
PickNik Robotics
PickNik Robotics: Provides software platforms for advanced robotic arm motion planning.
8+ YOE8+ years software engineering; expert C++ (C++20+); Python for backend; Linux, Docker, Git; architecture ownership; agentic coding tools; willing to travel; Boulder/Denver resident.
C++, Python, Linux, Docker, CMake, Git, ROS 2, MoveIt, gRPC, WebSocket, TypeScript, React
1mo
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Staff Software Engineer
Denver, Colorado, United States
$124k-$199k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
5+ YOE5+ years experience with a Bachelor’s Degree or 2+ years with an Advanced degree (e.g., Master’s) or 0 years with a PhD, or 8+ years experience; container tech; enterprise web services; leadership; cross-functional collaboration.
Containerization, Web services, Cloud platforms, CI/CD, Monitoring and logging, Automation tools
1mo
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Software Engineer Staff
Littleton, Colorado, United States
$150k-$180k/yr OnsiteFull Time
OASYS
OASYS: Provides technology services and products for government and defense.
Full-time software engineer with C/C++ experience; US citizen; ability to obtain Secret clearance; onsite in Littleton, CO.
C, C++, RTOS, GreenHill, VxWorks
2mo
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Software Engineer Staff
Aurora, Colorado, United States
$114k-$201k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
5+ YOERequires TS/SCI with polygraph, Sec+ certification, Linux experience, BS degree, and 5+ years professional software engineering experience; U.S. citizenship required.
Linux
1w
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Staff Software Engineer
Westminster, Colorado, United States
$102k-$150k/yr HybridFull Time
Vantor
Vantor: Providing AI-powered spatial intelligence and high-resolution Earth observation.
5+ YOEU.S. Person required, 5+ years building complex software, expertise with Python/Django, Linux, REST/JSON/YAML, test automation, CS/Engineering degree or equivalent.
Python, Django, Ubuntu, RHEL, CENTOS/AL3, REST, JSON, YAML, Cucumber, Gherkin, Behave, K8S, docker, jenkins, helm, terraform, RabbitMQ, PostgreSQL, Redis, Elasticsearch, Ruby, Go, CI/CD, EMR
1w
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Staff Software Engineer
Broomfield, Colorado, United States
$145k-$185k/yr HybridFull Time
Recurly
Recurly: Automates subscription billing and management for recurring revenue businesses.
10+ YOE10+ years full‑stack software engineering experience; deep Ruby on Rails and Vue.js expertise; API and MySQL proficiency; proven technical leadership and mentoring; experience with AI-assisted development tools.
Ruby on Rails, ActiveRecord, Vue.js, MySQL, GitHub Copilot, Cursor, Claude Code, Go (Golang), Node.js, Anthropic, OpenAI, AWS, OpenSearch, Redis, Kafka, Docker, CI/CD
1mo
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Staff Cyber Software Engineer
Annapolis Junction or San Antonio or Aurora or Carey
$186k-$292k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
12+ YOEBachelor's degree in computer science/IS or network engineering; 12+ years experience (or 10 for Masters, 8 for PhD); program in C/C++, Java, Python; experience with CNO tools and networking; ability to design and develop end-to-end data flows.
C, C++, Java, Perl, Python, Visual Studio, NET, Windows, UNIX, Makefiles
3w
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Staff Software Engineer
Santiago or Denver or San Francisco or Nashville
$66496k-$78230k/yr HybridFull Time
Checkr
Checkr: Provides AI-powered background checks and identity verification services.
10+ YOE10+ years software development, 3+ years project leadership, backend expertise (Ruby, Node.js), frontend proficiency (JavaScript, React), bachelor’s or equivalent, fluent English, hybrid availability in Santiago (3 days/week).
Ruby, Node.js, JavaScript, React
1w
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Staff Software Engineer
Denver or Austin or United States
$150k-$160k/yr HybridFull Time
LINQ
LINQ: Provides cloud software for K-12 school administration and nutrition.
10+ YOE10+ years software development experience with deep mobile expertise; Bachelor’s or equivalent; production React Native, TypeScript, Swift and/or Kotlin experience; native iOS/Android and CI/CD knowledge; strong communication and technical leadership.
React Native, TypeScript, Swift, Kotlin, Angular, C#, SQL, Git, Xcode, Android Studio
3w
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Staff Software Developer
Boulder, Colorado, United States
$128k-$229k/yr OnsiteFull Time
General Atomics
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
7+ YOERequires advanced software development experience (C++, Linux, multithreading, TCP/UDP sockets), 7+ years' experience (varies by degree), ability to obtain DoD security clearance, and strong communication and testing skills.
C++, TCP, UDP, Linux, GitLab, Git, Bash, Python, ZYNQ Ultrascale, Xilinx SDK, PetaLinux, SPI, I2C, UART, Ethernet, Unit Testing Tools
3mo
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Staff / Senior Staff Software Test Engineer
Boulder, Colorado, United States
$94k-$141k/yr OnsiteFull Time
SciTec
SciTec: Provides advanced remote sensing and missile defense technology solutions.
3+ YOEBachelor's in physical sciences, mathematics, engineering, or computer science; 3 years in software test engineering; strong teamwork and communication; DoD clearance ability.
Python, Test Automation, Model-Based Systems Engineering (MBSE), OPIR processing systems
1mo
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Staff Software Engineer, Salesforce
Beaverton or Denver or Seattle or Portland or Springfield or Toronto or Bengaluru
$195k-$221k/yr HybridFull Time
DAT Freight & Analytics
DAT Freight & Analytics: Software platform for freight matching and logistics data analytics.
7+ YOEBachelor's/Master's in CS or related, 7+ years enterprise software experience with 4+ years on Salesforce; Salesforce Platform Developer I or II required; proficiency in Apex, LWC, Flows, SOQL, integrations, cloud platforms, and modern engineering practices.
Salesforce, Apex, Lightning Web Components, Flows, SOQL, ERP, CPQ, Revenue Cloud Advanced (RCA), Java, Python, Node.js, AWS, Azure, Google Cloud, REST APIs, Microservices, DevOps, CI/CD