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35 applications development engineer jobs at 15 companies in Fort Collins, CO

2d
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Sr Applications Developer
Broomfield, Colorado, United States
HybridFull Time
Sonepar
Sonepar: Global distributor of electrical products and related services.
3+ YOEBachelor's degree in Computer Science, Information Technology, or related field; 3–5 years of full-stack application development experience in a large organization; strong .NET, web, API, database, and integration skills.
Microsoft .NET Framework, ASP.NET, MVC, C#, Visual Studio, Microsoft SQL Server, RESTful services, Web API, JavaScript, TypeScript, jQuery, JSON, HTML, CSS, XML
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4d
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Junior Applications Developer
Broomfield, Colorado, United States
HybridFull Time
Sonepar
Sonepar: Global distributor of electrical products and B2B solutions.
1+ YOEBachelor's degree in computer science, information technology, or related field; 1–2 years of full-stack development experience with .NET, ASP.NET MVC, C#, SQL Server, web technologies, APIs, and integrations.
Microsoft .NET Framework, ASP.NET MVC, C#, Visual Studio, Microsoft SQL Server, RESTful services, Web API, JavaScript, TypeScript, jQuery, JSON, HTML, CSS, XML
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4w
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Applications Developer II
Louisville, Colorado, United States
$89k-$122k/yr OnsiteFull Time
Sierra Space
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
2+ YOEBachelor's or equivalent, typically 2+ years experience, proficiency in two+ programming languages, Git, debugging, testing, and independent software design and implementation.
Git, Microsoft SQL Server, Microsoft Access, VBA, Microsoft Power BI, Python, MATLAB, AWS, Azure, Google Cloud, Spring, Django, .NET, React, Angular
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1d
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Operational Applications and Infrastructure Developer
Boulder, Colorado, United States
$80k-$128k/yr OnsiteFull Time
Lynker
Lynker: Science and technology solutions for government and environmental agencies.
10+ YOEMaster's degree in a STEM discipline and 10+ years' related experience. Requires Python, Docker, AWS, SQL, PostgreSQL or equivalent databases; supports APIs, CI/CD, infrastructure automation, and on-call operations.
Python, Docker, AWS, SQL, PostgreSQL, DynamoDB, MongoDB, Agile SCRUM, Kanban, GitLab, Jira
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1mo
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Applications Engineer III - Full Stack Developer
Louisville, Colorado, United States
$95k-$166k/yr HybridFull Time
Arcfield
Arcfield: Systems engineering and mission support for defense and space.
5+ YOEBachelor's in engineering/computation plus 5+ years (or MS/PhD equivalents), strong experience with containerized and desktop app development, git and CI/CD, C/C++/Python/Rust/Bash, and familiarity with communication protocols.
C, C++, Python, Rust, Bash, Git, Docker, Docker Compose, Podman, Kubernetes, CI/CD, JavaScript, HTML, React, AWS, Azure, Google Cloud Platform (GCP)
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1mo
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Mechanical Engineer
Thornton or Broomfield
$85k-$95k/yr OnsiteFull Time
StandardAero
StandardAeroNYSE: SARO: Provides maintenance, repair, and overhaul services for aircraft engines.
2+ YOEBachelor's degree in Engineering, 2+ years engineering experience in manufacturing or MRO. Experience developing repairs, tooling, processes, and documentation for component repair; knowledge of shop floor applications and Lean activities preferred.
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3d
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2026 Intern Conversion - Aerospace Software Apps Engineer I
Washington or Van Horn or Denver or Huntsville or Florida or Arlington or Los Angeles or Longmont or Reston
$101k-$155k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
2026 Blue Origin internship completion, college enrollment or recent graduation, B.S. in engineering, full-time availability by September 2027, independent teamwork, communication skills, and U.S. work authorization.
Defense Biometric Identification System (DBIDS)
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1mo
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Controls Gas Turbine Engineer
Greenville or Longmont
$65k-$75k/yr HybridFull Time
Quest Global
Quest Global: Global engineering services for product development and lifecycle management.
B.S. in Electrical, Mechanical, or Industrial Engineering required. Strong communication and interpersonal skills. Experience developing and testing control systems and writing requirements for turbine application code preferred.
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2w
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Application Developer - JavaScript
Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or St. Louis or Vienna
$84k-$141k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years web application development with JavaScript/TypeScript, experience with modern web frameworks, CI/CD, foundational cartography knowledge, bachelor's degree, and ability to travel up to 25–50%.
JavaScript, TypeScript, ArcGIS Maps SDK for JavaScript, React, Angular, Svelte, Vue, WebGL, ArcGIS Experience Builder, CI/CD
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1w
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Commercial Application Engineer
United States or Longmont
$93k-$155k/yr RemoteFull Time
GE Vernova
GE VernovaNYSE: GEV: Designs and services technologies for global power generation and electrification.
Bachelor's degree in engineering, technology, or related field; experience in technical sales, commercial proposals, or application engineering; industrial controls knowledge; and strong technical communication skills.
Distributed Control Systems (DCS), Programmable Logic Controllers (PLCs), Supervisory Control and Data Acquisition (SCADA)
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1mo
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Strategic Cloud Engineer, Application Development, Google Public Sector
Reston or Austin or Boulder
$152k-$222k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
6+ YOEUS citizen required; Bachelor\u0002s in Computer Science or equivalent; 6+ years system design or programming (Java,C++,Python); 6+ years troubleshooting and partner/customer management; active TS/SCI clearance.
Java, C++, Python, Google Cloud Platform
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1mo
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Engineer Principal – Ground/Application Software
Broomfield or Westminster or Boulder or Colorado or United States
$118k-$201k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
6+ YOEBS in Engineering +6 years experience, active Top Secret/SCI clearance required, experience with embedded satellite software, C/C++, Rust, Python, cloud (AWS), Docker/Kubernetes, and formal software development practices.
CI/CD, Containerization, C, C++, Rust, Python, Ruby, AWS, Lambda, Docker, Kubernetes, Spring, Jersey, Flask, CherryPy, Ruby on Rails, JavaScript, Angular, React, JavaFX, Qt, SQL, NoSQL, JPA/ORM, Java, MQTT, AMQP, Kafka, Vue, Nginx, Apache, Postgres, Cameo, PlantUML, gtest, ctest, MATLAB
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4w
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R&D Software Engineer
Boulder, Colorado, United States
$110k-$150k/yr OnsiteFull Time
Excelitas Technologies
Excelitas Technologies: Manufacturer of photonic and optical solutions for industrial markets.
5+ YOERequires a STEM bachelor's degree, 5+ years of professional C# programming, software application design, manufacturing experience preferred, and familiarity with databases, development frameworks, and equipment interfaces.
C#, WPF, ADO.NET, Entity Framework, WCF, Microsoft SQL Server, TSQL, MVVM, Windows Services, MVC, JavaScript, Web API, Git, GitHub, Microsoft Visual Studio, Visual Studio Code, C++, Python, SCADA, RS232, RS488
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2mo
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Engineer II – Ground/Application Software
Broomfield or Westminster or Boulder or Colorado or United States
$79k-$135k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
2+ YOEBS in engineering +2 years experience, current Secret clearance with ability to obtain TS/SCI, experience with cloud, containerization, C/C++, Rust, Python, Ruby, web frameworks, databases, UML, and formal software development practices.
CI/CD, Containerization, AWS, Lambda, Docker, Kubernetes, Spring, Jersey, Flask, CherryPy, Ruby on Rails, JavaScript, Angular, React, JavaFX, Python, Qt, C++, Java, Rust, Ruby, SQL, NoSQL, JPA/ORM, PlantUML, Cameo, MATLAB, gtest, ctest, MQTT, AMQP, Kafka, Nginx, Apache, Postgres
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3w
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Senior Full-Stack Lead Developer
Broomfield, Colorado, United States
$89k-$125k/yr HybridFull Time
Vail Resorts
Vail ResortsNYSE: MTN: Operates mountain resorts and provides hospitality and leisure services.
5+ YOE5+ years C# application development, Web API and Agile experience; SQL Server, HTML/CSS/JavaScript; experience leading developers, BS/MS in CS or related field; strong communication and leadership.
C#, .NET, Web API, Angular, WPF, Microsoft SQL Server, HTML, CSS, JavaScript, Git
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1w
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Software Engineer (5489) (Boulder, CO) (Secret)
Boulder, Colorado, United States
$110k-$140k/yr OnsiteFull Time
SMX
SMX: Providing cloud, cybersecurity, and mission-focused technology solutions to government.
5+ YOEActive DoD Secret clearance and U.S. citizenship,5+ years C++ experience,Proficient Unreal Engine and Linux,EMR not applicable,strong problem-solving and communication skills.
C++, Unreal Engine, Linux, Python, Javascript, Typescript, Jira, Confluence, Gitlab, Gitlab Runner, Docker, Kubernetes, Helm Charts
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3mo
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Systems Analyst I, II, or Systems Engineer
Cheyenne, Wyoming, United States
$19-$43/hr OnsiteFull Time
ANB Bank
ANB Bank: Provides personal and commercial banking and wealth management services.
Delivery, maintenance, and documentation of applications; third-party and in-house software integration; support and development of processes.
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3w
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Postdoctoral Researcher - Physics-Based Engineering Modeling and Validation for Drone Swarm Applications
Boulder or United States
$77k-$126k/yr OnsiteFull Time
National Laboratory of the Rockies
National Laboratory of the Rockies: Conducts applied research in energy systems and technology innovation.
Recent PhD (within 3 years), expertise in physics-based drone modeling, programming (Python/MATLAB/Fortran/C++), V&V, publishing and communication skills, ability to obtain DOE site access and PIV card.
OpenFAST, FAST.Farm, Kynema, Python, MATLAB, Fortran, C++, GitHub, FLORIS, Bladed, HAWC2, DWM, CFD
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