34 react js developer jobs at 16 companies in Windsor, CO

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
1mo
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Senior Software Development Engineer - Developer Platform
Boulder, Colorado, United States
$169k-$253k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
8+ YOE8+ years software engineering experience, 4+ years designing/deploying distributed systems, cloud-native services experience (GCP/AWS/Azure), TypeScript/JavaScript and React, REST/GraphQL, Kubernetes, API design and OAuth/OIDC, bachelor's degree or equivalent.
GCP, AWS, Azure, TypeScript, JavaScript, React, REST, GraphQL, Kubernetes, OAuth 2.0, OIDC, LLM, MCP, GKE, AWS Solutions Architect
6d
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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)
1mo
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Software Engineer
Westminster, Colorado, United States
$123k-$168k/yr HybridFull Time
Trimble
TrimbleNASDAQ: TRMB: Provides hardware, software, and services for construction and geospatial industries.
5+ YOE5+ years application design/programming experience with BS degree; expertise in Python and TypeScript, cloud-native development (Docker, Kubernetes), Web APIs (REST/GraphQL), and AWS serverless technologies.
AWS, AWS Lambda, DynamoDB, Python, TypeScript, JavaScript, Docker, Kubernetes, React, IAM, OAuth, REST, GraphQL, Cursor, Copilot
14h
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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
1mo
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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
1mo
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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
1mo
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Principal Software Test Automation Engineer
Lafayette, Colorado, United States
$122k-$184k/yr OnsiteFull Time
Medtronic
MedtronicNew York Stock Exchange: MDT: Develops and manufactures medical devices and digital health solutions.
7+ YOEBachelors in Computer Science/Engineering, 7+ years in software QA/test automation, 5+ years in medical device or regulated industries, scripting and programming (Python, Bash, JavaScript, Perl, C/C++), Linux, UML, test automation frameworks, Cypress/Jest/Supertest/React, RabbitMQ/REST, FDA QSR and IEC 62304 knowledge, leadership and mentoring expe...
Python, Bash, JavaScript, Perl, C/C++, Linux, UML, Cypress, Jest, Supertest, React, RabbitMQ, REST, Agile, Test-driven development
6d
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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
1d
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Staff Engineer (Java)
Los Angeles or Broomfield
$155k-$180k/yr HybridFull Time
Magnite
MagniteNASDAQ: MGNI: Independent sell-side platform for digital media advertising.
6+ YOE6+ years production Java experience, expertise in microservices, Spring Boot, Docker, AWS, relational and NoSQL databases, messaging systems, CI/CD, and automated testing.
Java, Spring Boot, Docker, AWS, EC2, ECS, Hibernate, MySQL, Oracle, Postgres, Redis, MongoDB, DynamoDB, RabbitMQ, Kafka, Maven, Git, Jenkins, Puppet, Jira, JavaScript, React, Ant Design, Material UI, React Bootstrap, Model Context Protocol (MCP)
9h
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Algorithm Developer, Battlespace Awareness
Broomfield or Fort Collins
$111k-$147k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
2+ YOEBachelor's in CS/Engineering/Math/Physics or equivalent, 2+ years relevant experience, strong C++ and Python skills, solid math foundation, software engineering fundamentals, ability to obtain Top Secret/SCI clearance.
C++, Python, MATLAB, Simulink, SQL, NoSQL, JavaScript, React, Node.js
1w
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SAP/BTP Applications Developer III
Louisville, Colorado, United States
$117k-$161k/yr OnsiteFull Time
Sierra Space
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
5+ YOEBachelor's or equivalent, typically 5+ years experience, expertise in multiple programming languages and frameworks, experience with Git, cloud platforms and SDLC, mentoring and communication skills.
SAP BTP, Git, AWS, Azure, Google Cloud, Java, Python, C#, JavaScript, Spring, Django, .NET, React, Angular
3d
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Junior Front-End Developer
Westminster, Colorado, United States
$88k-$155k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
2+ YOEBachelor's or equivalent, 2+ years related experience, working knowledge of Python and JavaScript, familiarity with PyQT/ReactJS/Dash/Streamlit, HTML/CSS, basic AI/ML concepts, and ability to work onsite in Denver.
Python, JavaScript, PyQT, ReactJS, Dash, Streamlit, HTML, CSS, Git, Azure Machine Learning, Roboflow
2w
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Senior Android Engineer - TrainingPeaks
Louisville, Colorado, United States
$111k-$185k/yr HybridFull Time
Peaksware
Peaksware: Develops software for athletic and musical performance improvement.
2+ YOE2+ years building complex Android apps using Java/Kotlin, experience with testing (unit/integration/e2e/TDD), reactive frameworks (RxJava/Kotlin Flow), DI (Dagger/Koin/Hilt), Retrofit/Ktor, Google Play releases, strong communication.
Java, Kotlin, Android, RxJava, Kotlin Flow, Dagger, Koin, Hilt, Retrofit, Ktor, Google Play Store, Crashlytics, Jetpack Compose, Apple Watch, Garmin, React Native, JavaScript, TypeScript
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
1d
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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
2w
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GIS Solution Engineer - Geo Experience Center
Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or St. Louis or Vienna
$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 knowledge, technical consulting and solution design experience, geodatabases/DBMS and cloud (Microsoft Azure or AWS), ability to travel 25-50%, bachelor’s degree required, U.S. work authorization required.
ArcGIS, Python, JavaScript, Microsoft Azure, AWS, WebGL, React, CI/CD, DBMS, BI, CRM, ERP
4w
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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
1mo
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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
1mo
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Principal Software Test Automation Engineer
Lafayette, Colorado, United States
$122k-$184k/yr OnsiteFull Time
Medtronic
MedtronicNYSE: MDT: Developing and manufacturing medical technologies and therapies globally.
7+ YOEBachelors in Computer Science or Engineering, 7+ years in software QA/test automation/test lead roles, 5+ years in regulated/medical device industries, test automation and scripting (Python, bash, JavaScript, Perl), C/C++, Linux OS, GUI/backend/reliability/performance testing, regulatory compliance (FDA QSR, IEC 62304), leadership and mentoring ski...
Python, bash, JavaScript, Perl, C/C++, Linux OS, UML, Cypress, Jest, Supertest, React, Rabbit MQ, Rest