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264 software react jobs at 131 companies in Longmont, 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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2w
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Software Engineer 2 (Full -stack - Spring Boot/React JS)
Irving or Hopkins or Charlotte or Denver
$105k-$124k/yr HybridFull Time
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
3+ YOE3+ years experience; strong Java (8/21), Spring Boot, React and full‑stack skills; microservices, APIs, DevOps, CI/CD, Kubernetes, databases; bachelor's degree or equivalent; strong algorithms and communication.
Java 8, Java 21, Spring Boot, JSP, React, NodeJS, Junits, Mockito, Kubernates, CI/CD, DevOps, Copilot
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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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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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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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1mo
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Staff Software Engineer
Santiago or Denver or San Francisco or Nashville
$66496k-$78230k/yr HybridFull Time
Checkr
Checkr: Provides AI-powered background checks and identity verification services.
10+ YOE10+ years software development, 3+ years project leadership, backend expertise (Ruby, Node.js), frontend proficiency (JavaScript, React), bachelor’s or equivalent, fluent English, hybrid availability in Santiago (3 days/week).
Ruby, Node.js, JavaScript, React
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1mo
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AI Software Developer
Grand Rapids or Denver or Chicago or Massachusetts or New Hampshire or New York or North Carolina or Oregon or Texas or Utah or Vermont or Virginia or United States or Canada
$120k-$160k/yr RemoteFull Time
Campspot
Campspot: Software for booking and managing campgrounds and RV parks.
3+ YOE3+ years professional software development; experience with Claude Code and Anthropic API; strong TypeScript and React; knowledge of prompt engineering, REST APIs, async patterns; ability to review AI-generated code and write tests.
Claude Code, Anthropic API, TypeScript, React, REST APIs
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2w
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Staff Software Engineer
Denver or Austin or United States
$150k-$160k/yr HybridFull Time
LINQ
LINQ: Provides cloud software for K-12 school administration and nutrition.
10+ YOE10+ years software development experience with deep mobile expertise; Bachelor’s or equivalent; production React Native, TypeScript, Swift and/or Kotlin experience; native iOS/Android and CI/CD knowledge; strong communication and technical leadership.
React Native, TypeScript, Swift, Kotlin, Angular, C#, SQL, Git, Xcode, Android Studio
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3mo
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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
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2w
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Senior Software Engineer
Denver, Colorado, United States
$130k-$150k/yr HybridFull Time
OrthoFi
OrthoFi: Software for orthodontic practice operations and patient financing.
10+ YOE10+ years software development experience, 4+ years in senior roles. Strong .NET Core/.NET Framework, React/Angular, SQL Server, AWS, CI/CD experience; Bachelor's in STEM required; experience with AI coding tools preferred.
.NET Core, .NET Framework, React, Angular, SQL Server, AWS, CI/CD, Terraform, Datadog, GraphQL, ElasticSearch, Claude, GitHub Copilot, Cursor, Playwright, Model Context Protocols (MCP)
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4w
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Technical Lead, Software Engineering
Denver, Colorado, United States
$145k-$175k/yr HybridFull Time
Litera
Litera: AI-powered document and workflow software for legal professionals.
6+ YOEBachelor's in CS/Engineering, 6+ years software development, full-stack experience, deep backend expertise (.NET or Laravel), TypeScript/React/Next.js, cloud (AWS/Azure/GCP), leadership and mentorship skills.
.NET, Laravel, TypeScript, React, Next.js, AWS, Azure, GCP, Docker, Kubernetes, PostgreSQL, MongoDB, DynamoDB
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1w
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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: Cloud-based payroll and HR software for small 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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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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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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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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18h
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Full Stack Software Engineer
San Francisco or Denver
$130k-$170k/yr OnsiteFull Time
Flock Homes
Flock Homes: Enables tax-deferred property exchange and management for landlords.
2+ YOE2+ years building production software; full-stack fluency with TypeScript, React, Node, GraphQL, Go or Python; AI experience preferred; strong communication and metrics-driven mindset; able to work in-person 5 days/week.
TypeScript, React, Node, GraphQL, Apollo, Go, Python, AWS, ECS, Beanstalk, Salesforce
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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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1mo
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Software Engineer I - Ground Software
Greenwood Village or Austin or Laurel
$70k-$125k/yr HybridFull Time
York Space Systems
York Space SystemsNYSE: YSS: Designs and manufactures modular spacecraft platforms and mission solutions.
0+ YOEEarly‑career full‑stack engineer; 0–1 years experience; bachelor's (or pursuing) in CS or related; foundational React/Angular knowledge; familiarity with TypeScript, C#, REST, Git, SQL, front-end tools; ability to obtain security clearance.
React, TypeScript, C#, .NET, Docker, Kafka, REST, Yarn, Babel, Material-UI, Git, SQL, TanStack Query
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