Join our community

Castle Rock • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Castle Rock • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Castle Rock • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Castle Rock • 50 milesRemote · Hybrid · Onsite · Field · All Environments

154 react js jobs at 72 companies in Castle Rock, CO

1mo

Save

Mark Applied

Hide

1mo

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

Job Posting View all

3mo

Save

Mark Applied

Hide

3mo

Staff Software Engineer, Integrations

San Francisco or Denver or Nashville or Santiago

$224k-$264k/yr HybridFull Time

Checkr

Checkr: AI-powered platform for background checks and identity verification.

10+ YOE10+ years software development; 3+ years leadership; backendRuby/Node.js with frontend JS/React; scalable systems; mentoring.

Ruby, Node.js, JavaScript, React, Testing, Observability

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Software Engineer II (Frontend)

San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Miami or New York City or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Washington, D.C. or Ottawa or Toronto or Vancouver or Mexico City

$103k-$186k/yr HybridFull Time

Scribd

Scribd: Subscription-based digital library for e-books, audiobooks, and documents.

4+ YOE4+ years frontend software development; strong TS/JS/React; Next.js; Rails familiarity; API integration; accessibility; testing; A/B testing; AI tools.

TypeScript, JavaScript, React, Next.js, Ruby on Rails, REST, GraphQL, Redis, Kafka, MySQL, Terraform, CI/CD, Monorepos, UI Libraries, AI Tools

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Front End Software Developer

Colorado Springs, Colorado, United States

$101k-$175k/yr HybridFull Time

LMI

LMI: Delivers management, technology, and analytics solutions for federal agencies.

5–10 years of front-end software development experience; strong JS/HTML/CSS; React/Angular/Vue; data visualization; REST APIs; UI/UX.

JavaScript, HTML, CSS, React, Angular, Vue.js, D3.js, Chart.js, REST APIs

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

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

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Front End Software Developer

Colorado Springs, Colorado, United States

$101k-$175k/yr HybridFull Time

LMI

LMI: Provides management consulting and digital solutions to federal government agencies.

5+ YOEBachelor’s in CS/SE or related field; 5–10 years front-end experience; React/Angular/Vue.js; JS/HTML/CSS; data-driven UI; REST APIs; UI/UX; fast-paced environment; strong communication.

React, Angular, Vue.js, D3.js, Chart.js, REST APIs, JavaScript, HTML, CSS

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Software Development Manager - Banking

Edison or San Diego or Irvine or Las Vegas or Centennial or Overland Park or Omaha or Edison

$160k-$175k/yr OnsiteFull Time

Axos Financial

Axos FinancialNYSE: AX: Provides digital-first banking and diverse financial services to customers.

10+ YOE10+ Mgmt10+ years software development with Angular/React; 10+ years leadership; distributed teams; .NET/C#/Java/JS; Agile; banking/clearing experience preferred.

.NET Framework, C#, Java, JavaScript, MVC, Angular 10, TypeScript, jQuery, SQL Server, RabbitMQ, Swagger Docs, REST, SOAP

Job Posting View all

3mo

Save

Mark Applied

Hide

3mo

Sr. Engineering Manager (Clinical Labs - Clinical Insights)

Denver, Colorado, United States

$218k-$251k/yr RemoteFull Time

Cleerly

Cleerly: Provides AI-driven solutions to analyze and prevent heart disease.

8+ YOE2+ Mgmt8+ years software engineering, 2+ years in leadership; healthcare software/Regulatory experience; Python/TypeScript/JS, AWS, APIs; DICOM/PACS; FDA/CE knowledge.

Python, TypeScript, JavaScript, Node.js, React, SQL, NoSQL, AWS, Terraform, CloudFormation, REST, GraphQL, DICOM, PACS

Job Posting View all

3mo

Save

Mark Applied

Hide

3mo

Full Stack Developer

Littleton, Colorado, United States

$100k-$120k/yr OnsiteFull Time

PassTime

PassTime: Provides GPS vehicle tracking and automotive asset management solutions.

6+ YOE6+ years of progressive full stack development; Bachelor's in a related field; strong JS framework experience; US work authorization; ability to work after hours/weekends as needed.

JavaScript, Angular, React, API integration, AWS, Azure, MS SQL Server, TFS, DevOps, Git, GitLab, WebAPI, REST, CSS, UI/UX

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Full-Stack Software Engineers (Experienced/Senior)

Chantilly or Mesa or Aurora

$127k-$233k/yr OnsiteFull Time

Boeing

BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.

5+ YOEBachelor's degree; 5+ years software development; Top Secret with SCI eligibility; CI/Polygraph after start; JS/Java/OO programming; distributed systems; cloud exposure.

Java, JavaScript, HTML5, CSS3, React, Spring, Hibernate, REST, SOAP, AWS, Git, Jenkins, Maven, Gradle, RDBMS, MongoDB

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Full Stack Engineer

Denver, Colorado, United States

$115k-$130k/yr OnsiteFull Time

AIR Communities

AIR Communities: Owns and operates residential apartment communities across the US.

5+ YOE5+ years full-stack development with C#, .NET, React; strong API, database, security, and cloud experience.

C#, .NET, ASP.NET Core, Entity Framework, React.js, JavaScript, TypeScript, SQL, Azure, AWS, GCP, CI/CD, Git

Job Posting View all

1d

Save

Mark Applied

Hide

1d

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

Job Posting View all

2w

Save

Mark Applied

Hide

2w

Engineering Manager - Content API (f/m/d)

Dublin or London or Berlin or Denver or San Francisco or New York City

RemoteFull Time

Contentful

Contentful: SaaS platform for headless content management and delivery.

5+ YOE5+ Mgmt5+ years leading development teams; proficiency in TypeScript, JavaScript, React, Node.js; experience with headless CMS (preferably Contentful); strong mentoring, stakeholder collaboration, and scalability experience.

TypeScript, JavaScript, React, Node.js, Contentful, PostgreSQL

Job Posting View all

1d

Save

Mark Applied

Hide

1d

Software Engineer - MID

Colorado Springs, Colorado, United States

$109k-$147k/yr OnsiteFull Time

GDIT

GDITNYSE: GD: Delivers IT and mission services to government agencies.

5+ YOE5+ years software development experience; proficiency with Python, JavaScript/TypeScript, Flask/FastAPI, React, Postgres, SQLAlchemy; TS/SCI clearance required; Bachelor’s in CS or related.

Python, JavaScript, TypeScript, Streamlit, React, Flask, FastAPI, Postgres, SQLAlchemy, Elasticsearch, AWS, Docker, Kubernetes, Git

Job Posting View all

3w

Save

Mark Applied

Hide

3w

Full Stack Developer

Wheat Ridge, Colorado, United States

OnsiteFull Time

Excel Driver Services

Excel Driver Services: Provides commercial driver license training and safety certification.

Experience building full-stack web and mobile apps using C#/.NET, JavaScript, React Native, HTML/CSS, SQL and Git/GitHub; strong communication, documentation, and collaborative skills.

C#/.NET, JavaScript, HTML, CSS, SQL, React Native, Git, GitHub, Unity

Job Posting View all

20h

Save

Mark Applied

Hide

20h

Mobile Developer, ServeManager

Denver, Colorado, United States

$96k-$135k/yr HybridFull Time

InfoTrack

InfoTrack: Software platform connecting law firms to courts and litigation services.

3+ YOE3+ years building production mobile apps; strong React Native, TypeScript, modern JavaScript; experience debugging iOS/Android, REST APIs, testing tools; understanding of mobile security and privacy.

React Native, TypeScript, JavaScript, Xcode, Android Studio, REST APIs, TestFlight, Google Play, App Store, Jest, React Native Testing Library, Expo, EAS, Google Play

Job Posting View all

6d

Save

Mark Applied

Hide

6d

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

Job Posting View all

1w

Save

Mark Applied

Hide

1w

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

Job Posting View all

1mo

Save

Mark Applied

Hide

1mo

Full Stack Engineer

Denver, Colorado, United States

$120k-$145k/yr HybridFull Time

Sensor Tower

Sensor Tower: Provides digital market intelligence and mobile app analytics software.

Experienced C# developer with SQL skills; familiarity with AWS, SQL Server, Redshift, Mongo, EntityFramework, ASP.NET Core; comfortable with JavaScript/React and DevOps practices; GitHub and Jira experience; on-call with Pagerduty possible.

SQL, C#, js, Ruby, Javascript, React, ASP.NET Core, AWS, SQL Server, Redshift, Mongo, EntityFramework, Github, Jira, Pagerduty

Job Posting View all

4w

Save

Mark Applied

Hide

4w

Software Engineer

Centennial or Warrenton

$95k-$150k/yr OnsiteFull Time

Altamira Technologies

Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.

Bachelor's in CS or related field, active TS/SCI clearance (polygraph-able), experience with Java, Python, JavaScript/TypeScript, Angular, React, ElasticSearch/ELK, CI, databases, and strong verbal/written communication.

Java, Python, JavaScript, TypeScript, Angular, React, ElasticSearch, ELK stack, Redis, Web Services (REST), Machine Learning, Data Analytics, Android, NoSQL, SQL, Xmidas, Digital Signal Processing

Job Posting View all