179 senior react developer jobs at 98 companies in Boulder, CO

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
2mo
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Senior Application Developer
Aurora, Colorado, United States
$85k-$95k/yr HybridFull Time
University of Colorado
University of Colorado: Public research university providing higher education and healthcare services.
2+ YOESenior developer for identity and access management; design, develop, and support secure, multi‑system web apps with identity/authentication integrations.
ASP.NET, NodeJS, MVC, TypeScript, Angular, Vue, React, MySQL, Oracle, MSSQL Server, Java, Python, Ruby, C#
2mo
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Senior Software Development Engineer
Lakewood, Colorado, United States
$117k-$146k/yr OnsiteFull Time
Mesa Labs
Mesa LabsNASDAQ: MLAB: Manufactures life science tools and critical quality control solutions.
5+ YOEBachelor's degree in CS or related field; 5+ years professional software development; Go/Python/TypeScript; React/JavaScript/HTML/CSS; PostgreSQL; microservices, CI/CD, Docker/Kubernetes; strong problem-solving and leadership.
Go, Python, TypeScript, React, JavaScript, HTML, CSS, PostgreSQL, NATS, Kafka, QuestDB, InfluxDB, Docker, Kubernetes, Prometheus, Grafana, Datadog, Git
6d
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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)
2mo
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Senior Software Engineer
Denver, Colorado, United States
$143k-$183k/yr HybridFull Time
DAT Freight & Analytics
DAT Freight & Analytics: Software platform for freight matching and logistics data analytics.
5+ YOE5+ years of software development; strong Node.js; AWS; Kubernetes; Datadog; microservices; relational and NoSQL databases; Bachelor's degree in CS or related field.
Node.js, Docker, Kubernetes, AWS, Datadog, Angular, React, Web Components, Kafka, SQL, NoSQL
1mo
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Senior Software Engineer, Web Experience
Denver, Colorado, United States
$160k-$200k/yr HybridFull Time
Kharon
Kharon: Global risk analytics platform for sanctions compliance and trade controls.
6+ YOE6+ years in software engineering; strong React/Next.js; technical SEO; OAuth/OIDC; headless CMS; marketing integrations; full stack capability with Python/Java; strong communication.
React, Next.js, TypeScript, Python, Java, Auth0, AWS, Docker, Kubernetes, HubSpot, Google Analytics 4, GTM, Tailwind, GraphQL, REST
1mo
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Senior Software Engineer
Spring or Fort Collins
$131k-$205k/yr OnsiteFull Time
HP
HPNYSE: HPQ: Produces personal computers, printers, and related digital imaging products.
4+ YOE4-7 years in software engineering; Windows-based app development; C/C++; Win32 API; multithreading; CI/CD; Git; MSTest; Agile; Azure; AI platform familiarity.
C++, Win32 API, Multithreading, Git, CI/CD, MSTest, Agile, Azure, Docker, Kubernetes, Python, JavaScript, React, SQL, API, AWS
2w
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Senior Software Engineer
Denver or United States
$120k-$160k/yr HybridFull Time
DHI Group
DHI GroupNYSE: DHX: Operates specialized career marketplaces and talent acquisition software platforms.
Experience building production-grade applications with Node.js and TypeScript, REST/GraphQL services, React/Next.js, AWS and container deployments; automated testing and AI-native workflows; senior technical leadership and mentoring.
Node.js, TypeScript, RESTful, GraphQL, React, Next.js, AWS, Docker, Fargate, Kubernetes, Playwright, LiteLLM, Python, Java, PostgreSQL, SNS, SQS, Lambda
2mo
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Senior Security Engineer
Austin or Chicago or Dallas or Denver or Los Angeles or San Diego or San Francisco
$131k-$169k/yr HybridFull Time
Karbon
Karbon: Practice management software for accounting firms.
4+ YOESenior Security Engineer with 4+ years in security or development; strong communication; cloud and AI experience; hands-on with security tooling and threat modelling.
DotnetCSharp, JavaScript, React, EmberJS, Python, Azure, AWS, GCP, PowerShell, Bash, GitHub Copilot, Burp Suite
2mo
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Senior Software Engineer I
Denver or New York City or San Francisco
$189k-$200k/yr HybridFull Time
Forge Global
Forge GlobalNYSE: FRGE: Marketplace for trading private shares and pre-IPO stock.
5+ YOE3–5+ years in OO languages (TypeScript, C#, Java); Python for data tasks; React/Tailwind; data architectures; private markets data; CI/CD, data orchestration; cloud (AWS/Azure/GCP); Git/GitHub; Agile tools (JIRA).
TypeScript, C#, Java, Python, React, TailwindCSS, Medallion, Data lakes, CI/CD, PostgreSQL, SQL, AWS, Azure, GCP, Git, GitHub, JIRA
4d
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Senior Software Engineer, Offers
Denver, Colorado, United States
$125k-$155k/yr HybridFull Time
bet365
bet365: Provides global online sports betting and digital casino games.
Experience leading development teams, mentoring developers, cloud platform experience, knowledge of React, Typescript, Go/Golang, SQL and Kafka; strong problem-solving and delivery focus.
Go, Typescript, React, SQL, Kafka, GCP, C#, .net, MSSQL, WPF
2mo
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Senior Full Stack Engineer
Golden, Colorado, United States
$115k-$150k/yr OnsiteFull Time
Lunar Outpost
Lunar Outpost: Develops autonomous robotic systems and rovers for lunar exploration.
5+ YOE5+ years software development; cloud AWS; Node.js and C++; SQL; Docker/Kubernetes; CI/CD; CCSDS familiarity
Node.js, C++, AWS, Docker, Kubernetes, CloudFormation, Terraform, CDK, SQL, MySQL, PostgreSQL, S3, CCSDS, React, OpenTelemetry, Prometheus, Grafana, DataDog, Kafka, RabbitMQ
4w
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Senior Software Engineer (Mobile) - ServiceCore
Denver, Colorado, United States
$125k-$165k/yr RemoteFull Time
ServiceCore
ServiceCore: Business management software for liquid and solid waste industries.
5+ YOE5+ years mobile development experience, production React Native and TypeScript expertise, strong mobile architecture and offline-first design skills, experience with AI-assisted development tools, and mentoring experience.
React Native, Expo, TypeScript, React, PHP Laminas Framework, MySQL, AWS, Cursor, Copilot, GitHub Copilot
1w
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Senior Software Engineer, Fleet & Planning
Atlanta or Boston or Chicago or Denver or Los Angeles or New York City or San Francisco or Austin or United States
$160k-$190k/yr RemoteFull Time
Flock Safety
Flock Safety: Sells AI-powered cameras and software for public safety surveillance.
Senior software engineer experienced with Typescript/Node, modern web frameworks (React), SQL, Docker, Helm, Kubernetes, and AWS; builds geospatial routing, automated permitting, and customer dashboards; CJIS eligibility required.
Typescript, Node, React, Vue, Angular, SQL, Docker, Helm, Kubernetes, AWS, S3, API Gateway, SQS, Claude, Copilot, Codex
1w
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Senior Software Engineer
Denver, Colorado, United States
$160k-$185k/yr HybridFull Time
Litera
Litera: AI-powered document and workflow software for legal professionals.
5+ YOE5+ years backend software development with .NET/.NET Core and Web/REST APIs; frontend experience with React/Vue/Angular/Svelte and Typescript; SQL experience; unit testing; AI/LLM development experience; strong communication and problem-solving.
Cognition AI, Devin, Cline, Replit, Cursor, Azure OpenAI, Anthropic, GitHub, Azure DevOps, Bit, Microsoft Visual Studio Code, Microsoft Visual Studio, SQL Azure, SQL Server, Unknit, MSTest, PostgreSQL, Docker, Azure, AWS, GCP, GitHub Copilot, Windsurf, Codex
3mo
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Senior Software Engineer (Channels)
Atlanta or Austin or Boston or Chicago or Denver or New York or San Francisco
$134k-$212k/yr HybridFull Time
Iterable
Iterable: AI-powered customer engagement and cross-channel marketing automation platform.
Experience building production-ready, scalable web apps; proficiency in Scala and/or Java; familiarity with Elasticsearch, Postgres; strong collaboration and learning mindset.
Scala, Elasticsearch, Postgres, Redis, Pulsar, Kafka, AWS, Docker, Kubernetes, React
1w
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Senior Full Stack Product Engineer
Denver, Colorado, United States
OnsiteFull Time
LearnLux
LearnLux: Digital financial planning and advisor access for employee wellbeing.
Senior full-stack engineer with experience shipping GenAI/LLM features, React/TypeScript frontend, Node.js/Python backend, cloud (GCP/AWS/Azure), strong product judgment and cross-functional leadership.
React, TypeScript, Node.js, Python, Google Cloud Platform, GCP, AWS, Azure
2mo
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Sr. Software Engineer - Mixed Portfolio Foundation
Santa Barbara or Dallas or San Diego or Remote United States or San Francisco or Denver or Atlanta or Chicago or Washington, D.C.
$138k-$173k/yr RemoteFull Time
AppFolio
AppFolioNASDAQ: APPF: Provides cloud-based property and investment management software.
5+ YOE5+ years of experience building web-based SaaS apps; strong data modeling; proficient with Ruby on Rails, React, MySQL, AWS; agile processes; test-driven development.
Ruby on Rails, React, MySQL, AWS, SOA
2mo
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Full Stack Engineer, Senior
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yr HybridFull Time
Ascendiun
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
React, Vue, Angular, JavaScript, TypeScript, .NET, Java, Node.js, Python, MS SQL Server, Oracle, NoSQL, REST, Azure, AWS, GCP, Docker, Kubernetes, Ansible, Bicep, ARM, Terraform, GitHub, GitLab, Bitbucket, Git
1mo
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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
3w
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Senior Software Engineer
Denver or London or Amsterdam or United States
$145k-$160k/yr RemoteFull Time
SRS Acquiom
SRS Acquiom: Provides technology and services for M&A and loan transactions.
5+ YOE5+ years building web applications; Bachelor's in CS/Engineering/Math/Business or equivalent; experience with Git/SVN, REST/JSON, Angular or React, HTML/CSS/SASS/SCSS, Docker, Kubernetes, MySQL, PHP/Laravel, testing, mentoring, and Agile.
Git, SVN, REST, JSON, Angular, React, HTML, CSS, SASS, SCSS, Docker, Kubernetes, MySQL, PHP, Laravel