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315 react software engineer jobs at 141 companies in Castle Rock, CO

1mo
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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
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1mo
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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
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1mo
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Senior Software Engineer
Colorado Springs, Colorado, United States
$127k-$190k/yr OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
5+ YOETS/SCI with Polygraph, bachelor's in computer science or related, 5+ years software engineering, proficiency with Java and Spring Boot, experience with React, containerized apps, Kubernetes, and CI/CD tools.
Java, Spring Boot, React, Kubernetes, Docker, GitLab, Ansible, MongoDB, C++, SQL
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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
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2w
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Software Engineer II
Denver, Colorado, United States
$90k-$100k/yr HybridFull Time
Vertafore
VertaforeNYSE: ROP: Provides cloud-based software solutions for the insurance industry.
3+ YOEBachelor's degree,3+ years professional software engineering experience,proficiency in C#/.NET,Python or Java,database and ETL experience,SQL skills,React and Git experience,excellent communication and Agile experience.
C#/.NET, Python, Java, MS SQL, PostgreSQL, SSIS, BIML, SQL Server Management Studio, Visual Studio, IntelliJ, React, Git, Copilot, AWS, REST, ETL
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1w
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Software Engineer III
Denver, Colorado, United States
$142k-$165k/yr OnsiteFull Time
Cleerly
Cleerly: Provides AI-driven solutions to analyze and prevent heart disease.
5+ YOE5–8 years software engineering experience, fullstack development, proficiency with React, Node.js, TypeScript, RESTful APIs and PostgreSQL; experience with cloud containers, CI/CD, and system design; Bachelor's/Master's or equivalent.
React, CSS, Node.js, TypeScript, RESTful APIs, PostgreSQL, Google Workspace (GMail, Drive, Docs, Sheets, Slides), Slack, Confluence, Jira, Zoom Video, Next.js, Ant, Docker, AWS EKS, CI/CD, Python
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3mo
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Software Engineer
Aurora or Annapolis Junction
$72-$84/hr HybridFull Time
EverWatch
EverWatch: Develops software and intelligence systems for government agencies.
5+ YOE5+ years in software engineering; Java, Spring Boot, Kafka; WebSockets; microservices; SQL/NoSQL databases; OCI containers; Docker/Kubernetes; TS/SCI clearance with polygraph; Bachelor's in Software Development/Engineering
Java, Spring Boot, Kafka, WebSockets, Microservices, MySQL, PostgreSQL, MongoDB, Docker, Kubernetes, OCI containers, ReactJS, HTML, JavaScript, CI/CD, Jira, Confluence
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3w
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Software Engineer
Colorado Springs or Boston
HybridFull Time
Odyssey Systems
Odyssey Systems: Provides engineering, integration, and technical services to defense clients.
1+ YOEUS citizen with active Secret clearance, B.S. in a STEM field, 1+ years software development experience; proficiency in TypeScript/Python/Java/C++/Rust/Julia, React, REST APIs, and writing tested, maintainable code.
TypeScript, Python, Java, C++, Rust, Julia, React, Cesium, Resium, Electron, MATLAB, NumPy, SciPy, GeoJSON, CZML, React Testing Library
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2mo
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Senior Software Engineer
Colorado Springs, Colorado, United States
OnsiteFull Time
NextGen Federal Systems
NextGen Federal Systems: Provides advanced software engineering and mission support to federal agencies.
5+ YOESenior software engineer with 5+ years in aerospace/defense, STK experience, TS/SCI eligibility, strong Python/Flask, React, API integration, Docker, cloud.
STK, STK Engine, STK Components, Cesium, Python, Flask, React, REST, Git, Docker, Cloud, MBSE, Digital Thread
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2d
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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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3w
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Software Engineer, Vertasyn Lead
Denver or Colorado Springs
$145k-$170k/yr OnsiteFull Time
Entarian
Entarian: Provides mission-critical engineering and technology solutions for government agencies.
10+ YOEActive Top Secret/SCI eligibility, bachelor’s in IT/CS/engineering (or equivalent), 10+ years software engineering experience with Node.js, React, Python, Kubernetes, AWS, distributed systems, API design, and SQL; strong technical communication and ~25% travel.
Vertasyn, Node.js, React, Python, Kubernetes, AWS, SQL, Microsoft Word, Microsoft PowerPoint, Microsoft Excel, Microsoft Project, Microsoft Outlook
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2d
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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
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2mo
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Staff Software Engineer
Columbus or Austin or Denver
HybridFull Time
Lower
Lower: Provides digital mortgage lending and homeownership financial services.
8+ YOE8+ years in software engineering; full-stack with backend/frontend; TypeScript, React, AWS, Next.js, Node.js, PostgreSQL; AI-assisted tooling experience; strong CS fundamentals; fintech/lending experience a plus.
TypeScript, React, AWS, Next.js, Node.js, PostgreSQL, Cursor, Claude Code, Codex, GitHub Copilot
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3mo
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Software Engineer
Atlanta or Denver or New York or Albany or Baltimore or Boston or Greenville or Charleston or Columbia or Winston-Salem or Greensboro or Raleigh or Charlotte or Durham or Charlottesville or McLean or Houston or Huntsville or San Francisco or Walnut Creek or Irvine or San Diego or Glendale or Sunnyvale or Reno or Las Vegas or Nashville or Tucson or Phoenix or Washington or Wilmington
$72k-$121k/yr RemoteFull Time
Womble Bond Dickinson
Womble Bond Dickinson: Transatlantic law firm providing comprehensive legal services to businesses.
5+ YOE5+ years data engineering with Microsoft technologies; strong C#, .NET, Blazor, React, TypeScript; SQL Server/T-SQL; Azure Data Factory, Microsoft Fabric, Delta Lake; production AI/RAG experience; Git and Azure DevOps.
C#, .NET, Blazor, React, TypeScript, Microsoft Power Platform, Microsoft Power Apps, Microsoft Power Automate, Microsoft Dataverse, Azure Data Factory, Microsoft Fabric, Delta Lake, Dataflow Gen2, Azure SQL, Azure Synapse, SQL Server, T-SQL, SSRS, SSAS, Boomi, Azure AI Foundry, Microsoft Agent Framework, Copilot Studio, Microsoft Copilot, Microsoft Teams, Microsoft Office add-ins, Git, Azure DevOps
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1mo
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Software Engineer (Full Stack)
Denver, Colorado, United States
$125k-$165k/yr HybridFull Time
Bayview Asset Management
Bayview Asset Management: Investment management firm specializing in credit and mortgage assets.
6+ YOEBA/BS in CS or engineering required; 6+ years software development experience with C#, JavaScript, SQL/T-SQL, REST/.NET Core; experience with web development, React preferred, relational DB and SDLC (Agile/Scrum).
C#, JavaScript, SQL, TSQL, SQL Server, React, .NET Core, .NET, ADO, HTML, XML, ASP, AJAX, REST, Web services, Git, Jira, TeamCity, Octopus
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3mo
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Software Engineer, Labs
Denver or United States
$160k-$180k/yr HybridFull Time
Pax8
Pax8: Cloud marketplace platform for software and managed services.
Senior frontend engineer with React/SolidJS/Vue, TypeScript, CSS, and backend Go or Python; real-time data handling; AI-driven workflows; collaborative, design-focused approach.
React, SolidJS, Vue, TypeScript, CSS, SVG, Canvas, WebGL, Go, Python, cloud APIs
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6h
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Software Engineer
Boulder, Colorado, United States
$120k-$145k/yr OnsiteFull Time
Atom Computing: Building scalable quantum computers using arrays of neutral atoms.
2+ YOEBachelor's degree, 2+ years software engineering experience, proficiency in Python, familiarity with Git and testing, backend development experience, willingness to learn quantum concepts.
Linux, Git, Python, Rust, TypeScript, React, C++, SQL, Azure, AWS, GCP, Terraform, CI/CD
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1w
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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
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2w
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Senior Software Engineer- Full Stack
Centennial, Colorado, United States
$111k-$160k/yr HybridFull Time
Daxko
Daxko: Software solutions for managing fitness and community centers.
7+ YOE7+ years full-stack software engineering experience with Java/Spring Boot, React/TypeScript, deep SQL Server expertise, testing discipline, and legacy-system migration experience.
Java, Spring Boot, pnpm, React, TypeScript, Vite, MUI, TanStack Query, Zod, ColdFusion, Docker, GitLab CI, AWS, S3, DynamoDB, KMS, Kubernetes, JUnit, WireMock, Vitest, Playwright, Selenium, SQL Server, Flyway, OpenAPI, RabbitMQ, Kafka
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2mo
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Staff Software Engineer, LowerOS
Columbus or Austin or Denver
HybridFull Time
Lower
Lower: Digital mortgage lending and comprehensive homeownership fintech services
8+ YOE8+ years in software engineering; full-stack expertise; TypeScript/React/AWS/Next.js/Node.js/Postgres; AI-assisted tooling experience; strong CS foundations.
TypeScript, React, AWS, Next.js, Node.js, Postgres, Cursor, Claude Code, Codex, GitHub Copilot
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