34 react js jobs at 9 companies in Wellington, CO

1mo
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Software Engineer
Silver Spring or Stennis Space Center or Boulder or Asheville
$64k-$70k/yr RemoteFull Time
Alpha Omega
Alpha Omega: Delivering digital transformation and IT solutions for federal agencies.
4+ YOE4+ years experience, Linux and programming proficiency (Python, R, Scala, C++, Java, C#, JavaScript), front-end (React/Angular), APIs/REST, Git, Kafka/NiFi/Spark/RabbitMQ, strong communication and problem-solving; Public Trust clearance and U.S. citizenship required.
Linux, Python, R, Scala, C++, Java, C#, JavaScript, React, Angular, Git, Kafka, NiFi, Spark, RabbitMQ, JSON, XML, Docker, Podman, Terraform, AWS EKS, AWS Step Functions, AWS Lambda, Amazon Aurora, Amazon DynamoDB, Elasticsearch, Atlassian Jira, Confluence
1w
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2026-2027 Information Technology - Software Engineer - Full-Time
Houston or Bakersfield or Denver or Midland or Covington or Greeley
$94k-$110k/yr OnsiteFull Time
Chevron
ChevronNYSE: CVX: Global energy producing oil, gas, and petrochemicals.
Bachelor's or master's in CS/CE/MIS/EE/related or equivalent experience; students graduating by July 2027 or grads <2 years; submit unofficial transcript; ability to demonstrate Chevron Way.
C#, .NET, Java, Python, TypeScript, JavaScript, React, Angular, Node.js, SQL, GitHub Actions, Terraform, Bicep, Kubernetes, OpenShift, Azure Cloud Services, REST APIs, GraphQL, GitHub Copilot, GitHub Enterprise, Service Now, Ansible, Azure DevOps
5d
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Senior Scientific Software Engineer
Broomfield or Fort Collins
$190k-$252k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
8+ YOEBachelor's in CS/Engineering/Math/Physics or equivalent,8+ years experience,proficiency in C++ and Python,strong math foundation,software engineering fundamentals,and ability to obtain Top Secret/SCI clearance.
C++, Python, SQL, NoSQL, MATLAB, Simulink, JavaScript, React, Node.js
4d
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Software Developer (mid-level) - 100% Remote - Public Trust
Herndon or Cheyenne or American Fork or Columbus or Stennis Space Center or Scottsdale or Cincinnati or Jacksonville or Fort Campbell or Pittsburgh or Dallas or Boise or Helena or Spokane or Keesler or Sioux City or Jacksonville or Fort Knox or Kalamazoo or Salt Lake City or Raleigh or Orlando or Bethesda or Baton Rouge or Peterson or Madison or JBSA Randolph or San Antonio or Richland or Kansas City or Seattle or Saint Charles or Montgomery
$75k-$92k/yr RemoteFull Time
AttainX
AttainX: Provides IT, cybersecurity, and program management services to federal agencies.
3+ YOE3+ years Java development; experience with Spring/Spring Boot, Azure, JasperReports/iText, SQL, Git, CI/CD; bachelor\u0002s degree preferred; US citizenship and ability to obtain Public Trust.
Java, Spring, Spring Boot, RESTful, JPA, Hibernate, Microsoft Azure, JasperReports, Jaspersoft Studio, iText, SQL, Git, CI/CD, JavaScript, Angular, React, USDA eAuthentication
4w
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GIS Solution Engineer - Geo Experience Center
Vienna or Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or St. Louis or Washington
$79k-$131k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years using Esri technology, 1+ years industry experience, Python and JavaScript programming, ArcGIS IT understanding, geodatabase/DBMS and cloud familiarity, travel 25–50%, bachelor\u0002s degree required, U.S. work authorization required.
ArcGIS, Python, JavaScript, Microsoft Azure, AWS, React, WebGL
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 or related field plus 2+ years' experience, active Secret clearance required and ability to obtain TS/SCI, experience with cloud, containerization, web and back-end technologies, OOP, UML, 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, Cameo, PlantUML, MATLAB, gtest, ctest, MQTT, AMQP, Kafka, Nginx, Apache, Postgres
2mo
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Senior Software Engineer
Spring or Fort Collins
$131k-$205k/yr OnsiteFull Time
HP
HPNYSE: HPQ: Manufacturer of personal computers, printers, and imaging devices.
4+ YOEDesign, develop, test, and maintain Windows-based software. Requires C++ (C++17+), Win32 API, multithreading, IPC/RPC, Git, CI/CD, Azure/AWS, unit testing, and 3–7 years of relevant experience; degree or equivalent experience preferred.
C++17, C++, Win32 API, IPC, RPC, Git, MSTest, CI/CD, ADO, Microsoft Azure, Amazon Web Services, Docker, Java, JavaScript, Kubernetes, Python, React.js, SQL
2w
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Senior Embedded Software Engineer
Louisville, Colorado, United States
$131k-$231k/yr OnsiteFull Time
Infleqtion
InfleqtionNYSE: INFQ: Develops neutral-atom quantum computing and precision sensing technologies.
5+ YOE5+ years Rust development experience, bachelor's degree or equivalent, embedded Linux and FPGA integration experience, familiarity with C++, frontend tech, and system-level interfaces (SPI, I2C, UART, PCIe, Ethernet).
Rust, C++, JavaScript, TypeScript, React, WebAssembly (WASM), Embedded Linux
1w
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Software Engineer II
Denver or Fort Collins or Boulder
$90k-$110k/yr HybridFull Time
Synergetics
Synergetics: Provides secure cloud infrastructure and logistics software for defense.
3+ YOE3+ years software development with C#/.NET and Angular, Azure and SQL Server experience, CI/CD and DevOps familiarity, strong problem solving and communication; U.S. citizenship required.
.NET, Angular, C#, SQL Server, Microsoft Azure, Microsoft Azure App Services, Microsoft Azure Functions, Microsoft Azure SQL, Microsoft Azure Storage, Microsoft Azure Key Vault, GitHub, Azure DevOps, GitHub Actions, BICEP, Terraform, ARM templates, Docker, Kubernetes, ServiceNow, JavaScript, TypeScript, HTML, CSS, React, Vue
2mo
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Senior Software Engineer
Spring or Fort Collins
$131k-$205k/yr OnsiteFull Time
HP
HPNYSE: HPQ: Produces personal computers, printers, and related digital imaging products.
4+ YOE4-7 years in software engineering; Windows-based app development; C/C++; Win32 API; multithreading; CI/CD; Git; MSTest; Agile; Azure; AI platform familiarity.
C++, Win32 API, Multithreading, Git, CI/CD, MSTest, Agile, Azure, Docker, Kubernetes, Python, JavaScript, React, SQL, API, AWS
3mo
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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 (or related) +2 years experience (advanced degree may substitute), ability to obtain TS/SCI, experience with cloud, web, front-end/back-end, Java/C++/Python, UML, and formal software practices.
AWS, Lambda, Docker, Kubernetes, Spring, Jersey, Flask, CherryPy, Ruby on Rails, JavaScript, Angular, React, JavaFX, Python, Qt, SQL, NoSQL, JPA, ORM, Java, C++, UML, Cameo, PlantUML, MQTT, AMQP, Kafka, Nginx, Apache, Postgres, gtest, ctest