1,495 system developer jobs at 437 companies in Littleton, CO

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AI System Developer III
Lakewood, Colorado, United States
$106k-$131k/yr HybridFull Time
Tallgrass
Tallgrass: Provides midstream energy infrastructure and delivery services.
4+ YOEDesign and implement RAG, multi-agent systems, LLM fine-tuning, model serving, integrations, CI/CD, and AI security; 4+ years IT/AI development experience; Python, SQL, MS Office proficiency; valid driver's license.
Python, MS SQL, Oracle, Microsoft Excel, Microsoft Word, Microsoft Access, Microsoft PowerPoint, Microsoft Outlook, Microsoft .NET, Docker, Kubernetes, MLflow
1mo
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Lead System Engineer
Orlando or Tampa or Lakeland or Melbourne or Daytona Beach or Las Vegas or Denver or Houston
$70-$75/hr RemoteFull Time, Contract
CAI
CAI: Provides global IT services and contingent workforce management solutions.
7+ YOE2+ Mgmt7+ years full‑stack development, 2+ years lead experience; hands‑on with Oracle/PL‑SQL, APIs/integrations, Microsoft Azure (.NET), Angular, Python; DevOps/CI/CD; experience with AI tools; strong client communication; must have work authorization not requiring sponsorship.
Oracle, PL/SQL, APIs, Microsoft Azure, .NET, Angular, Python, GitHub Copilot, Azure OpenAI, TestGPT, Docker, Kubernetes, CI/CD
1w
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System Engineer
Sterling or Denver or Sarasota
$69k-$142k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
3+ YOEActive TS/SCI (CI polygraph preferred or eligible), Bachelor's in technical field or equivalent, 3+ years systems/swg engineering or integration experience, EM/automation and technical writing skills.
Atlassian Suite, Jira, Confluence, AWS, PowerShell, JavaScript, Java, REST APIs
2mo
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Ground System Engineer
Colorado Springs or Aurora
$99k-$225k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years in systems engineering for satellite/ground systems; experience with technical specifications, ICDs, architectures, integration plans; experience with software systems for weapon systems; DoD/space program knowledge; Top Secret clearance; travel up to 10%.
2mo
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Ground System Integration Engineer
Arvada or Los Angeles or Washington
$110k-$170k/yr HybridFull Time
Quindar
Quindar: Cloud-native software for automated satellite mission operations.
3+ YOEDevelop and integrate software C2 solutions for satellites; strong software integration/debugging; experience with C2 concepts and satellite protocols; hybrid in Arvada, CO.
Python, C++, Java, Real-time Embedded Systems, Satellite Protocols (CCSDS, CSP, CFDP), XTCE, MIB, AES, AWS, Git
2mo
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Ground System Engineer
Colorado Springs or Aurora
$99k-$225k/yr RemoteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years systems engineering for satellite/ground systems; experience with ICDs, ground architectures, integration and test plans; experience with software for weapon systems; top secret clearance; HS diploma with 15+ years or Bachelor's with 7+ years in space programs.
DevOps, DevSecOps, Model-Based Systems Engineering, MBSE, IEEE 15288
2w
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System Safety Engineer
Edwards or Hampton or Greenbelt or Huntsville or Dallas or Houston or Denver or Mountain View
$127k-$142k/yr OnsiteFull Time
Analytical Mechanics Associates
Analytical Mechanics Associates: Provides aerospace engineering and technical services for space missions.
5+ YOEUS citizen/permanent resident. Degree in engineering/physical science/technology or extensive aerospace experience. 5+ years related experience (or 20 years for non-degreed technicians). NASA system safety training and system safety competency required.
2w
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System Engineer Senior Staff (Level 5)
Huntsville or King of Prussia or Littleton
$128k-$256k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Experienced systems engineer proficient in MBSE (SysML,DODAF), requirements development, verification/validation, trade studies, risk management, cross-discipline collaboration, and able to hold TS/SCI clearance (US citizen).
MBSE, SysML, DODAF, Cameo
2mo
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Network System Engineer
Golden, Colorado, United States
$115k-$140k/yr HybridFull Time
Colorado 811
Colorado 811: A non-profit notification center for underground utility damage prevention.
8+ YOE8+ years network/system engineering experience, bachelor\u0002s degree required, cloud and on-prem expertise (Azure/AWS/GCP), Active Directory/Intune experience, scripting (PowerShell/Python), API and security knowledge.
Windows, Mac, Linux, Azure, Google, AWS, Microsoft 365, JIRA, MS Teams, SharePoint, OneDrive, Dropbox, Smartsheet, Workato, Python, Power BI, SQL, JSON, XML, WSDL, OpenAPI, Swagger, PowerShell, Postman, SoapUI, Insomnia, Hoppscotch, VMWare, Hyper-V, Azure DevOps, MS Project, Trello, Five9, Intune, Active Directory
3w
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Sr. System Development Engineer, PEET
Denver, Colorado, United States
$151k-$205k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
6+ YOEBachelor's degree or CSSLP, active Top Secret/SCI clearance, 6+ years software development, 4+ years system design experience, 6+ years Linux/Unix operations, EM/GenAI familiarity, strong written and verbal communication.
AWS Managed Grafana, Managed Prometheus, Kinesis Video Streams, Linux/Unix
3w
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System Safety Engineer III - Lunar Permanence
Seattle or Brevard County or Denver
$131k-$183k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
5+ YOEB.S. or equivalent in engineering,2+ years system safety experience,5+ years electronic hardware development experience,FMECAs/FHAs/FTAs experience,MIL-HDBK-217F reliability knowledge,systems engineering skills and strong communication.
Windchill, Ansys Sherlock, PRISM, MIL-HDBK-217F, 217Plus, NPRD, EPRD
2w
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System Software Engineer III
Longmont, Colorado, United States
$115k-$145k/yr HybridFull Time
Autonomous Solutions
Autonomous Solutions: ASI develops autonomous vehicle systems and fleet management software.
5+ YOE5+ years writing production compiled-language code, Linux/Ubuntu/Yocto experience, debugging multi-threaded systems, hardware verification, strong problem-solving and collaboration skills.
Rust, C++, Python, Ubuntu, Yocto
5d
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Senior System Protection Engineer
United States or Greenwood Village or Fargo or Minneapolis
$142k-$184k/yr RemoteFull Time
Ulteig
Ulteig: Provides engineering and technical services for critical infrastructure sectors.
10+ YOEPE license, bachelor’s in electrical engineering, 10+ years power systems protection experience, expertise with relay settings, fault analysis tools, NERC PRC familiarity, commissioning and travel flexibility.
ASPEN, CAPE, ETAP, EasyPower, SCADA
1mo
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Principal Engineer, System Architecture
Colorado Springs or Centennial
$149k-$216k/yr OnsiteFull Time
Analog Devices
Analog DevicesNASDAQ: ADI: Designs and manufactures semiconductors for signal processing and power management.
10+ YOE10+ years experience in electrical engineering with expertise in analog/digital design and system architecture; B.Sc. in Electrical Engineering required; travel up to ~10% and international trips; strong communication and presentation skills.
GMSL, OpenGMSL (OGA), SerDes, I2C, SPI, Ethernet, HDMI
1w
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Engineer II - System Safety
Boulder, Colorado, United States
OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
2+ YOEBS in engineering or related plus 2+ years experience; knowledge of system safety, MIL-STD-882 and range safety; strong communication and technical analysis skills; eligible for Top Secret/SCI clearance.
1mo
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Senior Power System Engineer
Greenwood Village, Colorado, United States
$100k-$165k/yr OnsiteFull Time
Kimley-Horn
Kimley-Horn: Provides professional planning, engineering, and design consulting services.
4+ YOEBachelor's in Electrical Engineering, 4+ years in power system studies, PE license (or obtain within 12 months), proficiency with PSCAD and PSS®E, understanding of transient/dynamic behavior and protection coordination, strong reporting and teamwork skills.
PSCAD, PSS®E, ETAP, SKM, EasyPower
2mo
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Sr. Lead System Engineer
Englewood, Colorado, United States
$116k-$209k/yr OnsiteFull Time
General Atomics
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
8+ YOERequires advanced engineering experience (typically 8+ years), supervisory experience, active Top Secret/TS-SCI clearance, BS/MS/PhD in engineering or related field (or equivalent experience), MBSE experience and familiarity with Cameo/Magic Draw, DOORS, and Atlassian tools.
Cameo, Magic Draw, DOORS, Atlassian, JIRA, Confluence
2w
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System Cybersecurity Engineer
Colorado Springs, Colorado, United States
HybridFull Time
Odyssey Systems
Odyssey Systems: Provides engineering, integration, and technical services to defense clients.
2+ YOEUS citizen with Top-Secret clearance, DoD IAM Level I certification (or equivalent), advanced cybersecurity experience, and multi-year DoD experience; ability to lead RMF, eMASS/Xacta, and vulnerability management.
eMASS, Xacta, SGN/CORE, ITIPS, SAST, DAST, SCA
1mo
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System Design Engineer
Louisville, Colorado, United States
$63k-$95k/yr OnsiteFull Time
Summit Integrated Systems
Summit Integrated Systems: Specializing in integrated audio, video, and lighting systems.
5+ YOEBachelor's in a relevant field or equivalent experience, OSHA 10 preferred/provided, 5+ years AVL technical experience, advanced CAD skills (Vectorworks, AutoCAD, SketchUp, Revit), on-site installation/commissioning experience, strong communication and problem-solving.
Vectorworks, AutoCAD, SketchUp, Revit, CAD
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Engineer I – Information System Security
Broomfield, Colorado, United States
OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
BS in engineering or related field, CompTIA Security+ CE, knowledge of NIST 800-37/800-53, DISA STIGs, MBSE and CAMEO familiarity, willing to obtain security clearance, strong communication and systems engineering foundation.
CAMEO, Model-Based Systems Engineering (MBSE), SysML, UML, AWS

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