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1,211 junior software jobs at 574 companies in Colorado

2mo
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Junior Software Engineer
Denver, Colorado, United States
$85k-$115k/yr OnsiteFull Time
Performance Drone Works
Performance Drone Works: Manufacturer of autonomous, tactical unmanned aerial systems for defense.
0+ YOEBachelor's in CS/related field; 0-3 years software development; familiar with C++, Linux, Git, and testing.
C++, Linux, Git, CMake, REST APIs, Build Systems
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2mo
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Junior Software Engineer
Denver, Colorado, United States
$70k-$145k/yr HybridFull Time
Medpace
MedpaceNASDAQ: MEDP: Conducts clinical trials for biotechnology and pharmaceutical companies.
Bachelor's in Computer Science (required), strong software development skills with C#, Angular, HTML5, CSS3, Entity Framework, SQL/NoSQL, GitHub; excellent communication and analytical skills; 3.5+ GPA preferred.
C#, SQL, Entity Framework (EF), Angular, ASP.NET, HTML5, CSS3, GitHub, NoSQL
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1mo
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Junior Software Engineer
Denver or Springfield or Sterling or St. Louis
$69k-$142k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
0+ YOEBachelor's in CS or related, 0–3 years software development experience, Java and/or Python, web app and relational DB familiarity, Agile/SDLC knowledge, strong problem solving, TS/SCI clearance with polygraph.
Java, Python, GIS, ArcGIS, GeoServer, OpenLayers, Cesium
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1w
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Junior Software Engineer
Colorado Springs or Beavercreek
$77k-$115k/yr OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
0+ YOEActive Top Secret/SCI clearance, bachelor’s degree in a technical field, 0–2 years relevant experience, knowledge of OOP, Java or Python experience, familiarity with version control, strong communication and problem-solving skills.
Java, Python, XML, JSON, Protocol Buffers
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4w
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Junior Software Engineer
Warrenton or State College or Fort Eisenhower or Centennial
$95k-$140k/yr OnsiteFull Time
Altamira Technologies
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
Bachelor's in CS/CE/EE required. Strong Java and JavaScript/TypeScript skills required. Experience with full-stack technologies (Python, Angular, React, Elasticsearch, containers, Kubernetes) preferred. Top Secret clearance required.
Java, Python, JavaScript, TypeScript, Angular, React, Elasticsearch, ELK Stack, Redis, REST, Docker, LXC, Kubernetes, Helm, Machine Learning, Data Analytics, Android, NoSQL, SQL, Xmidas
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1mo
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Junior Software Engineer
Denver or St. Louis or Sterling or Springfield
$69k-$142k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
0+ YOEBachelor's in CS/Software/IS required; 0–3 years software development experience; experience with Java and/or Python; familiarity with web development, relational databases, SDLC/Agile; TS/SCI clearance with polygraph; up to 10% travel.
Java, Python, ArcGIS, GeoServer, OpenLayers, Cesium
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2w
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Junior Software Packaging Engineer
California or Colorado or Connecticut or Florida or Georgia or Illinois or Kansas or Massachusetts or Maryland or Maine or New Jersey or North Carolina or New York or Oregon or Tennessee or Texas or Virginia or Washington or Austin or Tampa
$85k-$110k/yr HybridFull Time
NinjaOne
NinjaOne: Unified IT platform for automated endpoint management and security.
2+ YOE2+ years technical experience, Windows OS familiarity, scripting or OOP experience, Git knowledge, comfortable with AI coding assistants; packaging, installer analysis, and automation skills.
Java, Kotlin, C++, Golang, Postgres, AWS, Git, PowerShell, Zsh, CI/CD, Copilot, Claude
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2mo
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Junior Developer (TS/SCI with CI Poly Required)
Aurora, Colorado, United States
$60k-$75k/yr OnsiteFull Time
DeNOVO Solutions
DeNOVO Solutions: Provides defense and intelligence technology, software engineering, and cybersecurity services.
1+ YOE1-2 years software development; TS/SCI with CI Poly clearance; Go or modern languages; REST APIs; microservices; Docker; Kubernetes; CI/CD; Git; Agile.
Go, Docker, Kubernetes, Git, Angular, Traefik, Helm, GitLab
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1mo
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Software Engineer - Junior - FULLY CLEARED with POLYGRAPH REQUIRED
Fort Meade or Maryland or Virginia or Colorado or Texas or Utah or Florida or Hawaii
$100k-$125k/yr OnsiteFull Time
Constellation Technologies
Constellation Technologies: Provides technical services and cyber solutions for government agencies.
2+ YOEUS citizen with active TS/SCI clearance and polygraph; 2+ years relevant experience; Bachelor’s in computer science or related; proficiency in Java and Python; experience with PySpark, Hadoop ecosystem, MapReduce, JSON/BSON, JavaScript, Jupyter Notebooks, NiFi, Elasticsearch, and MongoDB.
Python, Java, C++, JavaScript, PySpark, Spark analytics, Jupyter Notebooks, GHOSTMACHINE, MapReduce, ETL, Pig, JSON, BSON, Hadoop, NiFi, Elasticsearch, MongoDB, Query Time Analytics, Red Hat Enterprise Linux, AWS
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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.
2+ YOE2+ years in software development; experience with Java, Python, Rust, or Go; microservices; TS/SCI clearance; bachelor's degree.
Java, Python, Rust, Go, Linux, Docker, Kubernetes, AWS, Azure, Google
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2mo
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Software Engineer
Littleton, Colorado, United States
$75k-$95k/yr OnsiteFull Time
OASYS
OASYS: Provides technology services and products for government and defense.
Experience in C/C++, full software lifecycle, US citizenship, ability to obtain security clearance.
C, C++, RTOS, GreenHill, VxWorks, MBSE, Agile
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2mo
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Software Engineer
Denver, Colorado, United States
OnsiteFull Time, Internship
Connexta
Connexta: Develops open-source software and data interoperability solutions for intelligence.
Bachelor's degree in CS or related field; software development across Mac/Windows/Linux; ability to learn new technologies; U.S. Citizenship.
Java, OSGi, Karaf/ServiceMix, Camel, ActiveMQ, Cassandra, Lucene/Solr, SoapUI, Enterprise Integration standards (WS-*), GeoTools, JavaScript, HTML5, CSS3, Less/Sass, Backbone, Marionette, React, Redux, Bootstrap, Handlebars, Cesium, Ozone Widget Framework (OWF), Ozone Platform (OZP), Grunt, Bower, NPM, WebPack, XML, XSD, XSLT, XPath, XQuery, Geospatial (OGC), CometD, WebSockets, Agile, Scrum processes or tools, Eclipse/IntelliJ, Maven, JUnit, CXF SOAP and REST web services, Git/Stash, JIRA, Confluence, Crucible, Jenkins, SonarQube
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1w
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Software Engineer - Activity & Fitness, Watch Software
Boulder, Colorado, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Design and build fitness and mindfulness features, collaborate across software and hardware teams to create integrated user experiences.
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1w
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Software Engineer II
Lone Tree or Englewood
$108k-$149k/yr HybridFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
2+ YOEBachelor's degree in CS or related,2+ years software development experience,advanced proficiency in C#,knowledge of software engineering principles,ability to work in multi-disciplinary teams.
C#, C, C++, Java
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3w
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Software Engineer
Greenwood Village, Colorado, United States
$108k-$150k/yr HybridFull Time
MiTek
MiTekNYSE: BRK-B: Provides software and automation for the building industry.
2+ YOEBachelor's in CS or related, 2+ years software design and development, professional experience with C# and .NET, desktop application development, debugging large codebases, and strong communication skills.
C#, .NET, C++, Azure DevOps, Entity Framework
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1mo
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Ground Software Engineer
King of Prussia or Littleton
$77k-$152k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
1+ YOEActive Top Secret/SCI clearance, BS degree, typically 1+ years professional software experience, ground subsystems and scaled Agile development experience, strong software engineering and communication skills.
Java, Angular, Python, C# .NET, JavaScript, TypeScript, Docker, Kubernetes, Rancher, GitLab, DevSecOps, CI/CD, SAFe
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1mo
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Software Engineer
United States or Boston or New York City or Denver
$110k-$125k/yr RemoteFull Time
Spoiler Alert
Spoiler Alert: SaaS platform for managing and liquidating surplus food inventory.
2+ YOE2+ years professional software engineering experience; full‑stack web development using TypeScript, React, Express, and MongoDB; strong testing, collaboration, and productive use of AI coding tools.
TypeScript, React, Express, MongoDB
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1w
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Software Engineer
Colorado Springs or Irvine or Longmont or Fremont or Rochester or San Jose
$111k-$148k/yr OnsiteFull Time
Western Digital
Western DigitalNASDAQ: WDC: Design and manufacture data storage devices and systems.
0+ YOEPursuing or recent Bachelor's/Master's in a technical field; experience with C/C++, Python, Java, Go, SQL, or JavaScript through coursework or internships; familiarity with software fundamentals, debugging, and development tools.
C, C++, Python, Java, Go (Golang), SQL, JavaScript, Microsoft Office, Git, Linux, IDEs
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3w
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Software Engineer
Denver, Colorado, United States
$140k-$170k/yr HybridFull Time
Litera
Litera: AI-powered document and workflow software for legal professionals.
2+ YOE2+ years .NET and frontend experience, TypeScript, REST APIs, SQL experience, familiarity with GitHub and VS Code, CS/Software Engineering education or equivalent, strong communication and problem-solving skills.
.NET, .NET Core, ASP.NET Core, Web/REST APIs, React, Vue, Angular, Svelte, Typescript, SQL Azure, SQL Server, PostgreSQL, Unknit, MSTest, GitHub, Microsoft Visual Studio Code, Microsoft Visual Studio, Cognition AI’s Devin, Cline, Replit, Cursor, Docker, Azure, AWS, GCP, GitHub Copilot, Windsurf, Codex, Azure OpenAI, Anthropic, OWASP Top 10, SOLID
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4w
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Software Engineer
Woburn or Arlington or Carlsbad or Aurora
$110k-$138k/yr HybridFull Time
Systems & Technology Research
Systems & Technology Research: Develops advanced technology for national security and defense applications.
2+ YOEBS/MS in CS or related; 2+ years building maintainable APIs and Java-based software; experience with microservices, DevSecOps, and collaborating with scientists; U.S. citizenship and ability to obtain Top Secret clearance required.
Java 17, Spring Boot, Linux, Docker, Kubernetes, Kafka, NATS, GitLab, Python
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