58 react developer jobs at 25 companies in Granby, CO
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Sr Web Developer
Boulder, Colorado, United States
$163k-$245k/yrHybridFull Time
F5NASDAQ: FFIV: Provides application delivery networking and multi-cloud security solutions.
7+ YOEBachelor's in Computer Science or equivalent,7+ years full-stack web development,expert CSS/JavaScript,TypeScript,React,Next.js,Webpack,Storybook,Git,CI/CD,experience with CMS and web performance/accessibility.
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yrHybridFull Time
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
Loft Orbital: Deploy and operate satellite missions for organizations and governments.
Proficiency in TypeScript, HTML, CSS, experience with Vue.js or React, SPA development, GraphQL APIs, and unit/integration testing (e.g., Vitest, Jest, Cypress). Web Components and geospatial libraries are a plus.
Vue.js, TypeScript, HTML, CSS, GraphQL, Vitest, Jest, Cypress, Web Components (Lit), Leaflet, Mapbox, CesiumJS
Colorado State University: Public research university offering undergraduate and graduate degree programs.
5+ YOEBachelor's degree plus 5 years, master's plus 2 years, or Ph.D. in a technical field; AWS, Python, JavaScript, React, Git, security clearance, and U.S. work authorization required.
Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or St. Louis or Vienna
$84k-$141k/yrOnsiteFull Time
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%.
Bellevue or Boston or Boulder or Chicago or Denver or Los Angeles or New York City or San Francisco or San Jose or Seattle or Ventura
$125k-$229k/yrOnsiteFull Time
The Trade DeskNASDAQ: TTD: Cloud-based programmatic advertising platform for data-driven media buying.
8+ YOE8+ years software engineering experience, 1-2+ years on AI systems, Bachelor's/Master's or equivalent, strong Python and familiarity with C#, SQL, TypeScript/React, experience with LLMs, RAG, vector DBs, and enterprise AI platforms.
LangChain, LlamaIndex, Semantic Kernel, Azure AI Search, vector databases, Microsoft Copilot, Microsoft Copilot Studio, Anthropic Claude, Python, C#, SQL, TypeScript, React
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.
Spire GlobalNYSE: SPIR: Operates satellite constellations for global tracking and weather analytics.
3+ YOE3+ years building production software; strong frontend (React/TypeScript); Python services; AWS; experience deploying/operating production systems.
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
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
2+ YOEBachelor's degree or equivalent; 2+ years experience; strong programming and software development knowledge; Agile/Scrum/Kanban; ability to obtain/maintain US security clearance.
Lynker: Science and technology solutions for government and environmental agencies.
Requires strong TypeScript and modern framework skills, interactive web interface experience, REST/JSON API integration, Git, web tooling, and a relevant degree or equivalent hands-on experience.
TypeScript, React, REST, JSON, Git, MapLibre GL, Leaflet, deck.gl, PMTiles, GeoJSON, Learning Management System (LMS), Employee Assistance Program (EAP)
SynopsysNasdaq: SNPS: Provides software and IP for semiconductor design and manufacturing.
4+ YOEBachelor's with 8 years, master's with 6, or PhD with 4; front-end and back-end development expertise, cloud deployment, web components, Git, Agile, and testing experience.
HTML5, CSS3, JavaScript, React, Angular, C#, Java, Python, Node.js, Docker, Kubernetes, AWS, Microsoft Azure, Git, Jasmine, Karma, Jest, Vitest, Ansys
GarminNYSE: GRMN: Designs and manufactures GPS-enabled navigation and wearable technology products.
5+ YOEBachelor's degree or equivalent education and experience, 5+ years of relevant experience, advanced software development in C, C++, C#, or Java, algorithms, architecture, communication, and technical leadership.
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
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)
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.
Atom Computing: Building scalable quantum computers using arrays of neutral atoms.
10+ YOE10+ years engineering experience, Bachelor's in CS/CE, proven architecture leadership, proficiency with Python and SQL, Linux experience, familiarity with Git and automated testing, and willingness to learn atomic/optical/quantum concepts.
Katalyst Space Technologies: Develops robotic spacecraft for in-orbit satellite servicing and maneuvering.
3+ YOE3–8 years building cloud-based scalable microservice systems, production service ownership, mission-critical reliability, strong backend/frontend fluency, AWS and modern tooling experience, BS in CS or related (MS preferred).
Fervo Energy: Generates clean electricity using advanced geothermal drilling technology.
2+ YOEBachelor’s or Master’s in Computer Engineering or Data Science; 2+ years building agentic AI/LLM apps; strong Python; experience with agent frameworks; cloud experience (Azure/AWS); CI/CD; Docker; observability.
Tradeweb MarketsNasdaq: TW: Operates electronic marketplaces for fixed income and derivatives trading.
8+ YOE8+ years full-stack engineering experience, 5+ years contributing to architecture, AWS/cloud experience, Java Spring/Python or Rust, SQL, ReactJS, REST/RPC, experience with resilient distributed systems and mentoring skills.