258 react engineer jobs at 131 companies in Louisville, CO

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Senior React Developer/Architect
Centennial, Colorado, United States
$99k-$172k/yr HybridFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
10+ YOE10+ years front-end experience with React and TypeScript; expertise in front-end architecture, Node.js, Express.js, Next.js, AEM/Sitecore, testing (Jest/Cypress), Webpack, state management, and CI/CD.
React, TypeScript, Node.js, Express.js, Next.js, Adobe Experience Manager (AEM), Sitecore, Material UI, GraphQL, Jest, Cypress, React Testing Library, Webpack, Redux, Zustand, Recoil, CI/CD, Storybook, SASS, JavaScript
3d
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AI & ML Software Engineer
Fort Collins, Colorado, United States
$144k-$273k/yr HybridFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Providing global edge-to-cloud infrastructure and IT solutions for businesses.
Experience building production AI/ML software using Go, Python, and React; strong software engineering fundamentals; experience with distributed systems, observability, and lifecycle of ML solutions.
Go, Python, React, LLM, High Performance Computing (HPC)
5d
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Staff Software Engineer, HR Experiences
Denver or San Francisco or New York City
$199k-$247k/yr HybridFull Time
Gusto
Gusto: Cloud-based payroll and HR software for small businesses.
8+ YOE8+ years software development experience; experience with Ruby on Rails, JavaScript/React; building AI agents; mentoring engineers; compliance-domain experience preferred.
Ruby on Rails, JavaScript, React, Claude Code, Codex
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Sr Automation Engineer – New Glenn
Seattle or Denver or Los Angeles or Florida
$182k-$277k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
8+ YOEBachelor's in engineering/computer science or equivalent, 8+ years software/automation/data/engineering experience, experience designing automation tools, familiarity with React, TypeScript, Kubernetes, Databricks, SQL, Python, REST APIs, and AWS.
React, TypeScript, Kubernetes, Databricks, SQL, Python, REST APIs, AWS, Git, SVN, Gitlab CI
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BIM Integration Developer - Kiewit Infrastructure Engineers
Omaha or Lone Tree
$92k-$111k/yr OnsiteFull Time
Kiewit
Kiewit: Provides large-scale construction and engineering services for diverse infrastructure.
3+ YOE3+ years software development; bachelor’s in CS/SE/Engineering or equivalent; strong C#/.NET, REST API, React, SQL, Git, CI/CD; familiarity with BIM, ETL, and cloud platforms.
C#, .NET, RESTful APIs, React, JavaScript, TypeScript, SQL, Git, CI/CD, MongoDB, elasticsearch, IFC, Microsoft Azure, Copilot
3d
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AI & ML Software Engineer
Fort Collins, Colorado, United States
$144k-$273k/yr HybridFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Provides edge-to-cloud IT infrastructure and platform services.
Experience building production software systems; familiarity with Go, Python, React; experience with distributed systems, observability, and applying AI/ML or LLMs to products.
Go, Python, React
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Design Engineer, Americas
New York or San Francisco or Austin or Portland or Los Angeles or Seattle or Boston or Chicago or Denver or United States
$122k-$220k/yr RemoteFull Time
Ashby: Provides all-in-one recruiting software for high-growth businesses.
2+ YOEDesign and implement product-facing UI/UX and production code. Expect proficiency with TypeScript, React, CSS; familiarity with GraphQL, Node.js, Postgres, Redis is a plus. 2+ years industry experience preferred.
TypeScript, React, GraphQL, Node.js, Postgres, Redis, CSS
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Mural Pay - Senior Backend Engineer
New York or Denver
HybridFull Time
YieldNest
YieldNest: Liquid restaking protocol for risk-adjusted DeFi yields.
5+ YOE5+ years backend experience; Node.js, NestJS, TypeScript, React, GraphQL, Postgres, Prisma, AWS, Docker; experience building payment or money-movement systems; US work authorization required.
Node.js, NestJS, React, TypeScript, GraphQL, Postgres, Prisma, AWS, Docker, SQS, SNS, AWS Lambda, Vercel
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Lead Engineer, Internal Developer Platform
Madison or Denver or Boston
$131k-$220k/yr HybridFull Time
American Family Insurance
American Family Insurance: Provides diverse insurance products and comprehensive financial services.
Extensive platform engineering experience across AWS and GCP, Kubernetes, Terraform/Crossplane, CI/CD (GitLab), Backstage, scripting (Python/Go/Bash), Datadog, and strong DevEx/DevOps and SRE practices.
Backstage, TypeScript, Node.js, React, AWS, GCP, VPC, IAM, S3, EKS, GKE, Terraform, Crossplane.io, Docker, Kubernetes, GitLab CI/CD, JFrog Artifactory, Python, Go, Bash, Datadog, REST, GraphQL, Git, Argo CD, Flux, Jenkins, GitHub Actions, Bitbucket pipelines, CloudFormation
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Senior Software Engineer II, Web Platform
Broomfield, Colorado, United States
$180k-$210k/yr HybridFull Time
Biofire
Biofire: Manufacturing biometrically-secured smart guns for home defense.
End-to-end ownership of production web platforms; full-stack fluency with Next.js, TypeScript, React, Prisma, GraphQL; system design, reliability, and cross-functional partnership skills.
Next.js, TypeScript, React, Prisma, GraphQL
3d
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AI & ML Software Engineer
Fort Collins, Colorado, United States
$144k-$273k/yr HybridFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Provides global edge-to-cloud technology solutions and IT infrastructure services.
Experience building production AI/ML software and large-scale distributed systems; proficiency with Go, Python, React; experience with ML/LLM integration, observability, and analytics; strong problem solving and communication.
Go, Python, React
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Forward Deployed Software Engineer
Charlotte or Denver
$75k-$95k/yr HybridFull Time
Flagship Specialty Partners
Flagship Specialty Partners: Provides administrative and operational support to oral surgery practices.
0+ YOE0–2 years experience or strong portfolio; strong data fundamentals (data modeling, SQL, ETL); JavaScript/TypeScript + React and Git familiarity; strong quality-control judgment and ability to direct/verify AI coding agents.
Perplexity Computer, Claude Code, JavaScript, TypeScript, React, Vite, Express, Tailwind, Drizzle, SQLite, DuckDB, Docker, GitHub Actions, Fly.io, Git, SQL
3d
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Engineer I - Software
Boulder or Broomfield or Westminster
$65k-$110k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
BS in engineering or related required; experience with satellite ground systems, ground-system tools, cloud, web services, and back-end/front-end languages; eligible for Top Secret/SCI clearance.
COSMOS, ECLIPSE, OS/COMET, OASIS, AWS, Lambda, Docker, Kubernetes, Spring, Jersey, Flask, CherryPy, Ruby on Rails, JavaScript, Angular, React, JavaFX, Python, Qt, SQL, NoSQL, JPA/ORM, Java, C++, Rust, Ada
5d
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Front End Software Developer
Sterling or Denver or Aurora
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOERequire TS/SCI clearance,5+ years front-end development,BA/BS in CS or related,proficiency in JavaScript/TypeScript and frameworks (React/Angular/Vue),HTML/CSS,Git,REST,available to work onsite in Sterling,VA or Aurora,CO.
Java, Spring Boot, Spring Framework, REST, JavaScript, TypeScript, Vue 3, Bootstrap, Vite, Mockito, JUnit, Cypress, PostGres, MySQL, Redis, AWS DynamoDB, AWS EC2, RDS, S3, SNS/SQS, Lamda, Git, Jira, Confluence, Gitlab CI/CD, SonarQube, SAST, Docker, Kubernetes, React, Angular, Vue.js
20h
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Design Systems Engineer
New York or Denver or San Francisco or United States
$115k-$280k/yr HybridFull Time
Ambrook
Ambrook: Financial management platform for agricultural and industrial businesses.
Expert TypeScript and React frontend engineer experienced with design systems, component libraries, migrations, codemods, performance, accessibility, and tooling.
TypeScript, React, Figma
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Software Engineer
United States or Boston or New York City or Denver
$110k-$125k/yr RemoteFull Time
Spoiler Alert
Spoiler Alert: SaaS platform for managing and liquidating surplus food inventory.
2+ YOE2+ years professional software engineering experience; full‑stack web development using TypeScript, React, Express, and MongoDB; strong testing, collaboration, and productive use of AI coding tools.
TypeScript, React, Express, MongoDB
2w
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Software Engineer - Dice
Denver or Des Moines or United States
$100k-$140k/yr HybridFull Time
DHI Group
DHI GroupNYSE: DHX: Operates specialized career marketplaces and talent acquisition software platforms.
Production experience with Node.js and TypeScript, RESTful APIs, NextJS/React, AWS, CI/CD and automated testing (Playwright); strong engineering judgment and collaboration skills.
Claude Code, Codex, Gemini CLI, Node.js, TypeScript, RESTful APIs, NextJS, React, AWS, CI/CD, Playwright, GraphQL, Docker, Fargate, Kubernetes
1w
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Senior Algorithm Developer
Broomfield or Fort Collins
$190k-$252k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
8+ YOE8+ years experience and bachelor's in CS/Engineering/Math/Physics (or equivalent); strong C++ and Python skills; foundation in linear algebra, probability, statistics; ability to obtain Top Secret SCI clearance.
C++, Python, SQL, NoSQL, JavaScript, React, Node.js, MATLAB, Simulink
2mo
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Design Engineer
Austin or Denver or Indianapolis or Los Angeles or Minneapolis or Nashville or New York or Salt Lake City or San Francisco or Seattle
$150k-$170k/yr RemoteFull Time
Givebutter
Givebutter: Fundraising and CRM platform for nonprofit organizations.
4+ YOE4+ years frontend engineering; strong JS/TypeScript; HTML/CSS; modern frameworks (Astro/React/Next.js/Svelte); animation and analytics integration; accessible, performance-focused frontend; Git workflows; collaboration with design and product teams.
JavaScript, TypeScript, Astro, React, Next.js, Svelte, GSAP, Framer Motion, View Transitions API, Lottie, PostHog, LaunchDarkly, Segment, Amplitude
2mo
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Senior Software Engineer
Littleton, Colorado, United States
$152k-$205k/yr OnsiteFull Time
Four Sea Group
Four Sea Group: Technical mission support and software engineering for aerospace.
6+ YOE6+ years software engineering experience; TS/SCI clearance; Bachelors in CS/SE or related field; Java, C++, Angular/React; Agile, REST APIs; CI/CD; Git-based workflows.
Java, C++, Angular, React, GitLab, Jenkins, REST APIs, CI/CD, Jira