32 senior react jobs at 18 companies in Windsor, CO

2mo
Save
Mark Applied
Hide
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
2w
Save
Mark Applied
Hide
Senior Software Engineer,
United States or Boulder
$150k-$180k/yr RemoteFull Time
Propelus
Propelus: Software for healthcare workforce compliance and professional credentialing.
8+ YOEProven experience shipping mobile apps (React Native preferred), strong full-stack TypeScript/React/Node.js skills, AWS and CI/CD experience, accessibility (WCAG 2.1 AA), system design and mentoring experience.
React Native, TypeScript, React, Node.js, Fastify, oRPC, tRPC, GraphQL, PostgreSQL, OpenSearch, Redis, AWS, Lambda, SQS, SES, S3, Fargate, RDS, Secrets Manager, Pulumi, GitHub Actions, Vitest, Playwright, OpenTelemetry, Turborepo, pnpm, TanStack, Tailwind CSS, Figma, Claude Code, Copilot
6d
Save
Mark Applied
Hide
Senior Front-End Engineer
Longmont, Colorado, United States
$145k-$165k/yr HybridFull Time
Resource Label Group
Resource Label Group: Manufactures custom labels and innovative packaging products.
5+ YOE5+ years front-end experience with ownership-level responsibilities; deep React, TypeScript, Node.js, Next.js, CI/CD, performance, accessibility, and analytics experience; AI-fluent and strong mentorship skills.
React, TypeScript, Node.js, Tailwind, AWS Amplify, Vercel, Next.js, Amplitude, Segment, GA4, GitHub, GraphQL, Claude Code, Copilot, Cursor
3w
Save
Mark Applied
Hide
Senior Software Engineer
Broomfield or Fort Collins
$165k-$218k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
5+ YOE5+ years relevant experience and Bachelor's in CS/Engineering/Math/Physics (or equivalent); strong C++ and Python skills; foundation in linear algebra, probability, and statistics; ability to obtain Top Secret/SCI clearance.
Lattice OS, C++, Python, SQL, NoSQL, time-series databases, JavaScript, React, Node.js, MATLAB, Simulink
1mo
Save
Mark Applied
Hide
Senior Software Engineer
Boulder or Austin
$140k-$185k/yr HybridFull Time
Atom Computing: Building scalable quantum computers using arrays of neutral atoms.
5+ YOEBachelor's degree in CS/CE or related, 5+ years software engineering experience, proficiency with Python and SQL, Linux and Git experience, familiarity with automated testing and CI/CD practices, willingness to learn atomic/quantum concepts.
Python, Rust, TypeScript, React, SQL, Linux, Git, Terraform, Azure, AWS, GCP, C++
2w
Save
Mark Applied
Hide
Senior Geospatial Engineer
San Francisco or Boulder
$160k-$190k/yr RemoteFull Time
Xylo Risk
Xylo Risk: Physics-based wildfire risk modeling for community resilience.
7+ YOE7+ years geospatial engineering experience, strong Python and geospatial libraries (GeoPandas, Rasterio, GDAL, Shapely), PostGIS, cloud familiarity (AWS/GCP/Azure), experience with large raster/vector pipelines and messy real-world datasets.
Python, GeoPandas, Rasterio, GDAL, Shapely, PostGIS, AWS, GCP, Azure, React, Mapbox, ArcGIS, MapLibre
2w
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
Senior Software Engineer - Java/Kotlin
Boulder, Colorado, United States
$131k-$167k/yr OnsiteFull Time
Garmin
GarminNYSE: GRMN: Designs and manufactures GPS-enabled navigation and wearable technology products.
5+ YOEBachelor's in CS/CE/SE or equivalent and 5+ years experience; mastered Java/Kotlin with Spring; experience designing software systems, microservices, REST APIs, databases, Docker/Kubernetes; strong communication and leadership skills.
Java, Kotlin, Spring Framework, Spring Boot, Spring Cloud, Spring Security, WebFlux, Microservices, RESTful API, Relational Databases, NoSQL, Docker, Kubernetes, Lit, Angular, Svelte, React, Vue, Agile
1mo
Save
Mark Applied
Hide
Senior Principal Engineer – Ground/Application Software
Broomfield or Westminster or Boulder or Colorado or United States
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
8+ YOEBS in engineering +8 years (or higher degree substitution), active Top Secret/SCI, experience in embedded/satellite software, CI/CD, containerization, cloud (AWS), C/C++, Python, UML, and formal software 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, UML, Cameo, PlantUML, MATLAB, gtest, ctest, MQTT, AMQP, Kafka, Nginx, Apache, Postgres, DevSecOps
2w
Save
Mark Applied
Hide
Morpheus Software Principal UI/UX engineer
Fort Collins or Houston or Durham
$152k-$349k/yr HybridFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Providing global edge-to-cloud infrastructure and IT solutions for businesses.
10+ YOEExpert front-end engineer with React and TypeScript, 10+ years' experience, strong UX/product instincts, experience with cloud platforms and design systems, bachelor's degree or equivalent.
React, TypeScript, HTML, CSS, RESTful APIs, AWS, Microsoft Azure, Google Cloud, CI/CD
1w
Save
Mark Applied
Hide
Software Engineer
Cary or Chicago or Peoria or Westminster or Irving
$98k-$158k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
5+ YOE5+ years software development experience; Bachelor's in CS/SE/CE or equivalent; experience with React/Next.js/TypeScript, Java Spring Boot or Node.js; CI/CD, automated testing, and Agile practices.
React, Next.js, TypeScript, Java Spring Boot, Node.js, JavaScript, AWS, Azure, Vercel, Claude Code, GitHub Copilot, Copilot CLI, Claude, ChatGPT, Gemini, Cursor
2w
Save
Mark Applied
Hide
Morpheus Software Principal UI/UX engineer
Fort Collins or Houston or Durham
$152k-$349k/yr HybridFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Provides edge-to-cloud IT infrastructure and platform services.
10+ YOE10+ years building production web applications with React and TypeScript; bachelor’s degree or equivalent; front-end architecture, design systems, accessibility, and cloud platform experience; strong product and communication skills.
React, TypeScript, HTML, CSS, AWS, Microsoft Azure, Google Cloud
2w
Save
Mark Applied
Hide
Morpheus Software Principal UI/UX engineer
Ft. Collins or Houston or Durham
$152k-$349k/yr HybridFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Provides global edge-to-cloud technology solutions and IT infrastructure services.
10+ YOEDeep front-end expertise with React and TypeScript, strong UX and design sense, 10+ years building production web apps, bachelor\u0002s degree or equivalent, experience with cloud platforms and design systems.
React, TypeScript, HTML, CSS, RESTful APIs, AWS, Microsoft Azure, Google Cloud
2mo
Save
Mark Applied
Hide
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
2mo
Save
Mark Applied
Hide
Software Engineer III
Centennial or Louisville
$130k-$178k/yr OnsiteFull Time
Sierra Space
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
5+ YOERequires bachelor’s degree and 5+ years experience; proficient in multiple languages; able to mentor; U.S. security clearance required.
Git, GitHub, GitLab, Bitbucket, Docker, Kubernetes, Helm, ArgoCD, Python, React, FastAPI, AWS, JIRA, Confluence, Bash, PowerShell, Ansible, MySQL, PostgreSQL, MongoDB
2mo
Save
Mark Applied
Hide
Director of Engineering
Boston or Boulder or Chicago or Remote - US or Richmond
$140k-$170k/yr HybridFull Time
Yes Energy
Yes Energy: Provides real-time electric power market data and trading analytics.
7+ YOE5+ Mgmt7+ years engineering experience; 5+ years in leadership; hands-on coding; track record across multiple teams; strong coaching; Kanban; DevOps/CI-CD a plus; energy trading or equities/commodities experience a plus.
React, REST API, Microsoft SQL Server, C#, Snowflake, AWS, Azure, Cloud, DevOps, CI/CD
1w
Save
Mark Applied
Hide
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)
1mo
Save
Mark Applied
Hide
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
1d
Save
Mark Applied
Hide
Databricks Solution Architect
United States or Arlington or Tysons or Washington or New York City or Chicago or Austin or Atlanta or Boston or Boulder
$130k-$216k/yr RemoteFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
5+ YOEBachelor's degree and 5+ years experience in data architecture or platform engineering; hands-on Databricks, Unity Catalog, SQL/Python/Spark, cloud (Azure/AWS/GCP), and consulting delivery experience.
Databricks, Unity Catalog, SQL, Python, Spark, Terraform, Git, MLflow, Databricks Apps, Databricks Agents, React, Delta Tables, CI/CD
1w
Save
Mark Applied
Hide
Forward Deployed Engineer IV, Applied AI, Google Cloud
San Francisco or Austin or Boulder or Chicago or Addison or Detroit or Houston or Sunnyvale
$207k-$301k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
8+ YOEBachelor's degree or equivalent,8+ years software development with Python,experience with Terraform,cloud AI architecture,full-stack and enterprise integrations,ability to travel up to 50%.
Python, Terraform, Google Cloud Platform (GCP), Vertex AI, Gemini, ReAct, Model Context Protocol (MCP)