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402 mid level software engineer jobs at 206 companies in Commerce City, CO

1d
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Mid-Level Software Engineer
United States or Westminster or Herndon
$105k-$177k/yr RemoteFull Time
Vantor
Vantor: Providing AI-powered spatial intelligence and high-resolution Earth observation.
4+ YOEU.S. citizen with active Top Secret (or CBP/DHS suitability) clearance, bachelor\u0002s degree or equivalent, 4+ years software development experience, proficiency in Java/Rust and Python/JavaScript/TypeScript, and experience with agile tools.
Java, Rust, Python, JavaScript, TypeScript, Jira, Confluence, git, Apache Flink, Apache Kafka, React, Next, Leaflet, Map Libre, Redux, AWS, Azure, Google Cloud, OpenStack, Kubernetes, Docker, Jenkins, ArgoCD, Harness, GitLab CI, GitHub Actions, PostgreSQL, Apache Iceberg
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2mo
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Mid-Level Developer (TS/SCI with CI Poly Required)
Aurora, Colorado, United States
$75k-$95k/yr OnsiteFull Time
DeNOVO Solutions
DeNOVO Solutions: Provides defense and intelligence technology, software engineering, and cybersecurity services.
2+ YOETwo to five years of professional software development; TS/SCI with CI Polygraph; Go and API development; containers and CI/CD; mentoring junior developers.
Go, REST, Git, Docker, Kubernetes, Angular, Helm, Traefik, AWS, WebAssembly, wasmCloud, CI/CD
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6d
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Software Engineer - Cloud and Geospatial Data - Mid- Level
Denver, Colorado, United States
$90k-$190k/yr HybridFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEActive TS/SCI clearance, bachelor’s degree, 5+ years software engineering experience, strong Java and AWS skills, geospatial data processing experience, DevOps pipeline familiarity, and Linux/Python knowledge.
Java, AWS, Docker, Kubernetes, Helm, Postgres, GitLab CI/CD, Jenkins, Nexus, Apache Flink, Apache Spark, Apache Iceberg, Python, Linux, Red Hat
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1mo
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Mid-Level Structural Engineer
Billings or Denver or Boise or Hailey or Overland Park
$90k-$120k/yr OnsiteFull Time
WSP
WSPToronto Stock Exchange: WSP: Provides engineering, design, and environmental consultancy services globally.
3+ YOEBachelor's in Civil/Structural, 3–5 years structural engineering experience (substation preferred), EIT, knowledge of ACI/AISC/ASCE codes, structural analysis/finite element and software experience, technical writing, QA/QC, and strong communication.
RISA‑3D, STAAD Pro, MathCAD, LPile, RISA
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1d
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Software Engineer - Level 2 or 3
Boulder, Colorado, United States
$92k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEU.S. citizen with active Secret clearance, STEM bachelor's (or higher) with 2+ years (Level 2) or 5+ years (Level 3) software experience; experience with C++, Python, Linux, containers and CI/CD.
Kubernetes, K3s, C++, Python, Linux, CI/CD, Git, Jenkins, OpenShift, Docker, Podman
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4d
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Jr. to Mid-level Software Engineer - Boulder, CO
Boulder, Colorado, United States
$110k-$138k/yr OnsiteFull Time
Davidson Technologies
Davidson Technologies: Delivers engineering and technology solutions for national security missions.
2+ YOEProficiency in C/C++, Python, Linux, and OOP; experience with algorithm development, state estimation, and data analysis; ability to travel up to 10%; active DoD Secret clearance required to start.
Linux, C, C++, Python, Java, Jira, Git, Conan, CMake, Nexus, Bash, grep, awk, cat, head, Confluence, Bitbucket
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3w
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Software Engineer
Denver, Colorado, United States
$115k-$135k/yr HybridFull Time
Litera
Litera: AI-powered document and workflow software for legal professionals.
3+ YOE3+ years professional software engineering experience; bachelor's degree in CS/Software Engineering or equivalent; experience with full‑stack web apps, APIs, source control, Agile, and AI-assisted development.
Azure, AWS, Google Cloud, CI/CD, containerization, AI-powered development tools, GenAI, Agile
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4w
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Senior Software Engineer
Highlands Ranch or Houston
$93k-$186k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
3+ YOEB.S. in engineering or related, 3+ years software engineering experience, proficiency in C++ and Python, Linux experience, full software lifecycle and debugging experience, real-time simulation and aerospace knowledge preferred.
C++, Python, MATLAB/Simulink, Linux, Perforce
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2w
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Software Engineer
Boulder, Colorado, United States
$120k-$155k/yr OnsiteFull Time
Major League Baseball
Major League Baseball: Professional sports league governing North American baseball teams and media.
3+ YOE3+ years professional software engineering experience; strong iOS development with Swift, UIKit/SwiftUI; mobile architecture, networking, state management, and collaboration in cross-functional teams.
iOS, Swift, UIKit, SwiftUI, tvOS, Apple TV, Android, Android TV, Fire TV
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2mo
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Software Engineer
Tucson or Centennial or Chantilly
$85k-$152k/yr OnsiteFull Time
Rincon Research Corporation
Rincon Research Corporation: Designs high-performance digital signal processing solutions for defense missions
Bachelor’s/Master’s/PhD in Computer Engineering or Computer Science; proficient in modern software practices; C++ and Python on Linux; ability to obtain TS/SCI clearance; US citizenship required.
C++, Python, Linux, Gitlab, CI/CD, Docker, Kubernetes, PIP
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1w
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Software Engineer
Aurora, Colorado, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years software engineering experience, TS/SCI with polygraph required, Bachelor's in a STEM field, experience with cloud environments and building RESTful APIs, proficiency in Python/Java and modern web stacks.
Python, Java, Vue, Node, AWS, Azure, GCP, RESTful APIs, Linux, Docker, Kubernetes, C#, C, C++, JavaScript, React
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1mo
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Software Engineer
Aurora, Colorado, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years software engineering experience; proficiency with Python, Java, web stacks (Vue/Node), Agile, cloud (AWS/Azure/GCP), RESTful APIs; TS/SCI clearance with polygraph required; Bachelor’s degree in a STEM field.
Python, Java, Vue, Node, AWS, Azure, GCP, RESTful APIs, Linux, Docker, Kubernetes, C#, C, C++, JavaScript, React
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2mo
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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
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3w
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Structural Engineer – Mid Level – Hydropower Focus (Hybrid)
Seattle or Salt Lake City or Denver or Minneapolis or Ann Arbor
$85k-$115k/yr HybridFull Time
Barr Engineering
Barr Engineering: Engineering and environmental consulting for industrial and natural resource projects.
4+ YOEBachelor's in structural or civil engineering, PE or eligibility, 4 years' relevant experience, valid driver's license, ability to travel and perform limited fieldwork, proficiency with AutoCAD/Revit and structural analysis software.
AutoCAD, Revit, RISA 3D, STAAD Pro, SAP
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2w
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Software Engineer II
Denver, Colorado, United States
$88k-$171k/yr OnsiteFull Time
Walmart
WalmartNYSE: WMT: Multinational retail operating discount stores and supermarkets.
3+ YOEBachelor's degree or 3 years software engineering experience; familiarity with C#/.NET, cloud-deployed microservices, SQL and messaging systems; strong communication and critical thinking.
C# 12, .NET 8, ASP.NET Core, Microsoft SQL Server, Aurora PostgreSQL, Mongo, MassTransit, RabbitMQ, Swagger/OpenAPI, RestSharp, xUnit, Moq, AWS
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6d
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Flight Software Engineer
Denver or Denver
$115k-$165k/yr HybridFull Time
Bay Systems Consulting
Bay Systems Consulting: Provides engineering and technology support services to government agencies.
Bachelor's in CS/Aerospace/Software Engineering, software verification experience, leadership, advanced Python, Linux and MATLAB knowledge, strong analytical and problem-solving skills.
Python, Linux, MATLAB, C++, IBM DOORS
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2mo
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Software Engineer II
Lone Tree or Englewood
$94k-$130k/yr HybridFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
2+ YOEBachelor's degree in Computer Science or Software Engineering; 2+ years of software development experience; ability to obtain/maintain Secret U.S. Security Clearance.
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3w
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Software Engineer II
Denver, Colorado, United States
$90k-$100k/yr HybridFull Time
Vertafore
VertaforeNYSE: ROP: Provides cloud-based software solutions for the insurance industry.
3+ YOEBachelor's degree,3+ years professional software engineering experience,proficiency in C#/.NET,Python or Java,database and ETL experience,SQL skills,React and Git experience,excellent communication and Agile experience.
C#/.NET, Python, Java, MS SQL, PostgreSQL, SSIS, BIML, SQL Server Management Studio, Visual Studio, IntelliJ, React, Git, Copilot, AWS, REST, ETL
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3w
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Advanced Software Systems Engineer
Boulder, Colorado, United States
$119k-$128k/yr HybridFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Engineers secure communication and mission-critical defense technology systems.
3+ YOEBachelor's in systems engineering (or related) with 5+ years or Master's with 3+ years, DoD Secret clearance required, U.S. citizenship, experience with systems-level software development, MBSE, cloud and DevOps tooling.
Model-Based Systems Engineering (MBSE), AWS, Azure, RHOSP, VIO, Kubernetes, Rancher, Docker, OpenShift, Ansible, Terraform, Terragrunt, Packer, STIG, RMF
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2mo
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Software Engineer
Denver, Colorado, United States
$115k-$155k/yr OnsiteFull Time
Performance Drone Works
Performance Drone Works: Manufacturer of autonomous, tactical unmanned aerial systems for defense.
3+ YOEC++ software development in embedded/Linux environments; UI with Qt/QML; CI/CD; collaboration across teams; 3–5 years experience.
C++, Qt, QML, Linux, Git, CMake, QMake, CI/CD
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