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480 react jobs at 149 companies in Castle Rock, CO

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Senior Frontend React Engineer
Fort Collins or Colorado Springs or Denver
$120k-$130k/yr HybridFull Time
Modern Family Law
Modern Family Law: Private family law firm providing divorce, custody, support, and related legal services to families.
Must reside within commutable distance to a Colorado office (Colorado Springs, Fort Collins, Denver). Production experience with React and TypeScript, frontend architecture, state management, API integration, accessibility, and automated testing.
React, TypeScript, Vite
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2mo
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Mobile Developer
Charlotte or Denver or New York City
$93k-$136k/yr HybridFull Time
Judi Health
Judi Health: Privately held health technology providing pharmacy and benefits administration to employers, unions, health plans, and governments.
3+ YOE3+ years of software development experience with React Native; proficiency in TypeScript, JavaScript, React, React Native, React Query, testing, mobile CI/CD, Git, and production iOS and Android support.
React Native, TypeScript, JavaScript, React, React Query, Zustand, Context API, Redux, iOS, Android, GitHub Actions, Fastlane, Git, Amplitude, WCAG, Apple Wallet, Swift, Objective-C, Kotlin, Java, AWS, Terraform, Appium, Maestro, Moropo, Playwright
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2mo
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Senior Front End Graphics Engineer
Long Beach or Denver or Washington
$135k-$195k/yr HybridFull Time
True Anomaly
True Anomaly: Delivering decisive capabilities for space superiority and security.
Requires strong React and TypeScript, deep three.js or react-three-fiber experience, WebGL and GLSL fundamentals, real-time 3D performance expertise, visual design judgment, and end-to-end ownership.
React, three.js, Unity, Unreal, Babylon.js, TypeScript, react-three-fiber, WebGL, GLSL, Blender, glTF
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3mo
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Software Engineer II
Canada or United States or United Kingdom or Jordan or New Zealand or Australia or Denver
$105k-$115k/yr RemoteFull Time
EverCommerce
EverCommerceNasdaq Stock Market LLC: EVCM: Public SaaS platform serving service SMBs with business-management, payment, and customer-engagement software.
3+ YOE3+ years software development experience; strong TypeScript foundation; familiarity with React/React Native, Node.js, mobile app development, MongoDB/PostgreSQL, Git/GitHub, and basic SQL; strong communication and troubleshooting skills; must be eligible to work in Canada without sponsorship.
TypeScript, React Native, React, Node.js, MongoDB, PostgreSQL, Firebase, Git, GitHub, SQL
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1mo
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Sr Software Engineer, Client Applications
Austin or Denver
$131k-$160k/yr HybridFull Time
Jeppesen
Jeppesen: Private aviation software providing flight planning, navigation data, and operations tools to pilots, airlines, and fleets.
Proficiency in systems/backend languages (Rust, C++, C, Java, Kotlin, Swift), frontend experience (React), cross-platform desktop/mobile frameworks (Tauri, Electron, React Native, Flutter), native platform knowledge, and experience building production applications in mission-critical environments.
Rust, C++, C, Java, Kotlin, Swift, React, Tauri, Electron, React Native, Flutter, macOS, Windows, Linux, iOS, Android
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3mo
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Lead Engineer, Internal Developer Platform
Madison or Boston or Denver
$131k-$220k/yr HybridFull Time
American Family Insurance
American Family Insurance: Mutual U.S. insurance providing auto, home, life and business coverage to individuals and businesses.
Experience with cloud platforms, Kubernetes, Terraform, CI/CD, Backstage, TypeScript, Node.js, React, observability, SRE, APIs, Linux, and DevSecOps practices.
AWS, GCP, Kubernetes, Infrastructure as Code (IaC), Backstage.io, TypeScript, Node.js, React, Terraform, Crossplane.io, Docker, GitLab CI/CD, JFrog Artifactory, Python, Go, Bash, Datadog, JavaScript, REST, GraphQL, Git, Agile, CloudFormation, Jenkins, GitHub Actions, Bitbucket pipelines, Argo CD, Flux, Linux, VPC, VNet, DNS, TLS
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1mo
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Senior Back-End Engineer, Sports Platform
Denver, Colorado, United States
$125k-$155k/yr HybridFull Time
bet365
bet365: Private British online gambling group offering sports betting, casino, poker, bingo, and games to customers worldwide.
Experience with high-throughput low-latency systems, coaching/mentoring, agile environment, GCP with Kubernetes, microservices in Golang or Rust, React and TypeScript knowledge.
GCP, Kubernetes, Golang, Rust, React, TypeScript
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1mo
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Ground Software Engineering Intern - Summer 2027
Golden, Colorado, United States
$24/hr OnsiteInternship, Temporary
Lunar Outpost
Lunar Outpost: Private U.S. space-robotics building lunar rovers and off-world mobility infrastructure for government, commercial, and scientific customers.
Pursuing a bachelor's or master's degree in computer science or related field; experience with NodeJS, React, Python, relational databases, unit testing, and Microsoft Office Suite.
NodeJS, React, Python, MySQL, PostgreSQL, Microsoft Office Suite, AWS, S3, DynamoDB, Lambda
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2mo
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Manager, Power Platform & Modern Front‑End Engineering
Chicago or Denver or Minneapolis or Houston or Dallas
$107k-$215k/yr OnsiteFull Time
RSM
RSM: Audit, tax, and consulting services for the middle market.
7+ YOERequires 7+ years in application development or solution delivery, Power Platform expertise, React, JavaScript/TypeScript, REST APIs, Azure integration, and development team leadership.
Microsoft Power Platform, Microsoft Power Apps, Microsoft Power Automate, Microsoft Dataverse, Microsoft Dynamics 365, React, Angular, Next.js, Azure, JavaScript, TypeScript, REST APIs, Copilot, Microsoft Azure Functions, Microsoft Azure App Services, Microsoft Azure API Management, CI/CD, ALM
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4w
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Software Engineer II
Denver, Colorado, United States
$125k-$135k/yr RemoteFull Time
Tilt
Tilt: Private SaaS providing AI-powered leave management software and human support to employers.
2+ YOEFull-stack experience with Python/Django and React; ability to write automated tests, manage own work, and collaborate; authorized to work in the US; background check required.
Python, Django, React, CI/CD
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1mo
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Senior Software Engineer
Santiago or Denver or San Francisco or Nashville
$49980k-$58800k/yr HybridFull Time
Checkr
Checkr: AI verification platform providing background, identity, employment, mortgage, tenant, and trust checks for businesses and individuals.
5+ YOERequires 5+ years of backend development, advanced English, Ruby, Golang, or JavaScript/TypeScript, React, databases, REST APIs, system architecture, and tested code experience.
Ruby, Golang, JavaScript, TypeScript, React, REST APIs
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1mo
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Senior Software Engineer, Trust
San Francisco or Denver or Nashville or Santiago
$185k-$218k/yr HybridFull Time
Checkr
Checkr: AI verification platform providing background, identity, employment, mortgage, tenant, and trust checks for businesses and individuals.
5+ YOE5+ years of full-stack development experience, BS/MS in computer science or engineering, and advanced Ruby/Rails or JavaScript/React knowledge; startup experience preferred.
Ruby, Rails, JavaScript, React
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3mo
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Staff Software Engineer, PEO Benefits
Denver or San Francisco or New York or Toronto or Los Angeles or Seattle
$163k-$247k/yr HybridFull Time
Gusto
Gusto: Gusto is a payroll, benefits, and human-resources software platform serving small and medium-sized businesses.
8+ YOE8+ years software development experience, PEO experience preferred, experience with large Ruby on Rails and JavaScript/React applications, AI tool fluency, and mentoring ability.
Ruby on Rails, Javascript, React
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1mo
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Senior Full Stack Developer
Louisville, Colorado, United States
$170k-$185k/yr OnsiteFull Time
Alchemer
Alchemer: Provides survey and customer-feedback software solutions for businesses and organizations.
10+ YOE10+ years of professional software engineering experience; full-stack expertise with React, databases, data modeling, query optimization, testing, performance, security, and technical mentorship.
Python, TypeScript, PHP, React, Databricks, Lakebase, PostgreSQL, MySQL, ThoughtSpot, AWS, GitHub, Bitbucket, Jenkins
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2mo
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Senior Full Stack Engineer
Colorado Springs, Colorado, United States
$157k-$190k/yr RemoteFull Time
Sphinx Defense
Sphinx Defense: Private aerospace software building secure satellite-operations and ground-data systems for government and commercial space missions.
5+ YOE5+ years of web development experience with JavaScript, TypeScript, React or Svelte, backend integration, containerized microservices, secure government environments, and eligibility for TS/SCI access.
FastAPI, SQLAlchemy, PostgREST, Svelte, React, CesiumJS, Python, JavaScript, TypeScript, CSS, Kubernetes, Docker, HTML
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1w
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Senior Product Designer - Click UI
United States or St. Louis or Detroit or Charlotte or Denver or Chicago or Seattle or Austin or Minneapolis or Phoenix or Atlanta or Washington D.C. or New York or Los Angeles or Houston or Boston or Columbus or San Francisco or Dallas
$142k-$217k/yr RemoteFull Time
ClickHouse
ClickHouse: Provider of a high-performance, real-time analytics database management system.
Strong visual design fundamentals, proven experience with design systems and complex software, advanced Figma proficiency, frontend skills in CSS, React, and TypeScript, and enthusiasm for AI tools.
Figma, CSS, React, TypeScript, Cursor, Copilot, Figma MCP, v0, GitHub
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3w
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Senior Software Engineer, Web
Denver, Colorado, United States
$151k-$192k/yr HybridFull Time
DAT
DAT: Private freight marketplace and logistics software serving shippers, brokers, carriers, and transportation analysts.
Several years of frontend/web development experience; deep knowledge of Next.js and React; experience with headless CMS, REST and GraphQL; ability to lead technical discussions and drive consensus.
Next.js, React, REST, GraphQL, CMS
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2mo
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Sr. Software Engineer
Miami or New York City or Denver or Dallas
$160k-$195k/yr RemoteFull Time
Rightway
Rightway: Private healthcare technology providing care navigation and pharmacy benefits management to employers and members.
5+ YOE5+ years building production software; strong JavaScript or TypeScript and React experience; backend experience with Ruby on Rails, Node, or similar frameworks; API experience with GraphQL or REST.
React, Node, NestJS, TypeScript, Ruby on Rails, JavaScript, Ruby, GraphQL, REST, Protobuf, gRPC
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2mo
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Senior Software Engineer II, Web Platform
Broomfield, Colorado, United States
$180k-$210k/yr HybridFull Time
Biofire Technologies
Biofire Technologies: Firearms-safety developing biometric handguns for gun owners.
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
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