52 senior web software engineer jobs at 43 companies in Thornton, CO
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Senior Software Engineer II, Web Platform
Broomfield, Colorado, United States
$180k-$210k/yrHybridFull Time
Biofire: Manufacturing biometrically-secured smart guns for home defense.
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.
F5NASDAQ: FFIV: Provides application delivery networking and multi-cloud security solutions.
7+ YOEBachelor's in Computer Science or equivalent,7+ years full-stack web development,expert CSS/JavaScript,TypeScript,React,Next.js,Webpack,Storybook,Git,CI/CD,experience with CMS and web performance/accessibility.
BDR Solutions: Provider of IT, engineering, and consulting for federal agencies.
8+ YOESenior full‑stack web developer with 8+ years experience, Sitecore and ASP.NET/C# expertise, HTML/CSS/JavaScript and modern front-end frameworks, SQL, MVC5/PWAs, IAT II and CE certifications (DoD 8570/8140), U.S. citizenship required.
HTML, CSS, JavaScript, React, Angular, Vue, Active Server Pages (ASP.NET), C#, Sitecore Content Management System (CMS), SQL, MVC5, PWAs, Jira
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.
DomainTools: Provides DNS-based threat intelligence and domain investigation solutions.
5+ YOE5+ years professional development (Python, GoLang, Rust), 3+ years cloud (AWS,Docker,Kubernetes), web-scale data engineering, Kafka, Linux/Unix; strong communication and cross-team coordination.
Amatriot Group: Provides IT consulting and mission-critical technology support services.
Experience with full-stack development, microservices, cloud, containers, Kubernetes, REST APIs, modern web frameworks, CI/CD tools, and TS/SCI clearance with CI polygraph.
PTMA Financial Solutions: Provides treasury and investment services to public sector entities.
7+ YOEBachelor's degree or equivalent professional experience, 7+ years of experience, and expertise in Java, node.js, SQL, Python, web technologies, relational databases, and collaborative software development.
Java, node.js, SQL, Python, HTTP, JSON, Web Sockets, ClaudeCode, CoPilot for git, Unix, Microsoft SQL Server, PostgreSQL, Azure SQL, Oracle, DevOps
Newport Beach or Irvine or San Francisco or Denver or Seattle
$165k-$220k/yrHybridFull Time
Compa: AI-powered compensation intelligence platform for enterprise teams.
5+ YOE5+ years shipping production software; proficiency in a modern web language/framework and full‑stack fluency; proven ownership of complex systems; leadership in technical decisions. AI/ML and data-product experience preferred.
Solerity: Provides IT and engineering services for federal government agencies.
Senior frontend engineering experience with modern web development, JavaScript, RESTful APIs, Git/GitHub, agile methods, and Angular or React; active Top Secret clearance required and TS/SCI with Poly eligibility.
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEBachelor's in a technical field, TS/SCI with polygraph, 5+ years software development experience with Java and/or Python, web frameworks, relational/NoSQL databases, Agile experience, and secure coding practices.
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEBachelor's in CS or related, 5+ years software development experience, Java and/or Python proficiency, experience with web frameworks and databases, TS/SCI clearance with polygraph required, Agile and secure coding experience.
LINQ: Provides cloud software for K-12 school administration and nutrition.
10+ YOE10+ years software development experience, expertise in .NET and web technologies, cloud-native development, microservices, CI/CD, strong leadership and mentoring skills, Bachelor’s degree or equivalent.
Node, .NET (C#), PostgreSQL, DynamoDB, Angular, Microsoft Azure DevOps, AWS, Microsoft Azure DevOps Pipelines, Git
Volley Automation: Automated robotic parking systems for space-constrained locations.
BS in CS or related required (MS preferred). Strong backend development experience with Python/JavaScript, web services, cloud platforms (AWS/GCP/Azure), databases, Git and CI/CD. Must be able to work on-site or in the field at least 3 days/week.
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
8+ YOEBachelor’s degree in computer science, electrical engineering, or related field; 8+ years’ software development experience, or 5+ with a master’s; 3+ years HTML5, CSS3, JavaScript, and Web Components; AEM operations expertise.
CaterpillarNYSE: CAT: Manufactures construction and mining equipment, engines, and gas turbines.
8+ YOERequires a bachelor's degree in computer science, electrical engineering, or related field, with 8+ years' experience or 5+ years with a master's. Requires AEM operations, HTML5, CSS3, JavaScript, Web Components, and software integration expertise.
São Paulo or Brazil or Amsterdam or United Kingdom or London or New York City or Philadelphia or Denver
R$213k-R$261k/yrHybridFull Time
B Lab: Certifies businesses for meeting high social and environmental standards.
5+ YOERequires 5+ years in software development, web platforms and integrations, modern architecture, APIs, data governance, and engineer leadership. English fluency required; a computer science or IT degree is preferred.
B Hive, B Academy, LMS, Git, Coderbyte, Google Meet, Zoom
Houston or Raleigh or Charlotte or Chicago or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rochester or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or San Juan or Seattle or Spartanburg or Albany or Stamford or Atlanta or Toledo or Austin or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Fort Worth or Greensboro or Hartford or Grand Rapids or Indianapolis or Jacksonville or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Melville or Miami or Milwaukee or Montpelier or Nashville or New Orleans or New York or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$77k-$202k/yrOnsiteFull Time
PwC: Providing audit, tax, and management consulting services to businesses.
3+ YOEBachelor's degree and 3+ years' experience; GIS, Esri mapping, ArcGIS architecture and conversion, analytical problem-solving, client collaboration, and data interpretation skills.
San Francisco or Ottawa or Phoenix or Toronto or Los Angeles or Denver or Salt Lake City or Atlanta or Chicago or Houston or Portland or New York City or Vancouver or San Diego or Washington, D.C. or Sacramento or Jacksonville or Seattle or Mexico City or Austin or Miami or Boston or Dallas
$124k-$226k/yrHybridFull Time
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
6+ YOERequires 6+ years of frontend software engineering experience, JavaScript/TypeScript and React expertise, modern web framework experience, architecture knowledge, performance optimization, testing, and strong collaboration skills.
VertaforeNYSE: ROP: Provides cloud-based software solutions for the insurance industry.
6+ YOEBachelor's degree in a computer-related field; 6+ years with Python web frameworks, 5+ years with RESTful APIs, 4+ years with Vue 3, and experience with Docker, Agile, AI, security, enterprise architecture, and databases.
United States or Denver or Dallas or Ashburn or Alabama or Arkansas or Arizona or Florida or Georgia or Iowa or Idaho or Indiana or Kansas or Kentucky or Louisiana or Maine or Missouri or Mississippi or Montana or North Dakota or Nebraska or New Mexico or Ohio or Oklahoma or Pennsylvania or South Carolina or South Dakota or Tennessee or Utah or Vermont or Wisconsin or West Virginia or Colorado or Hawaii or Michigan or Minnesota or North Carolina or New Hampshire or Nevada or Oregon or Rhode Island or Alaska or California or Connecticut or Delaware or Illinois or Massachusetts or Maryland or New Jersey or New York or Texas or Virginia or Washington
$106k-$155k/yrRemoteFull Time
Lumen TechnologiesNYSE: LUMN: Providing global enterprise telecommunications and network connectivity services.
5+ YOERequires 10+ years with a bachelor's degree or 5+ years with a master's degree; expertise in Node.js, Vue.js, RESTful services, PostgreSQL, Playwright, JavaScript/TypeScript, Git, and web architecture.