Top Tech Jobs & Startup Jobs in Denver & Boulder, CO

Spontaneous application to join Web Tonics talent pool for roles in digital marketing, project management, web design & development, content creation, automation/systems, operations, and client success. Applicants should show initiative, clear communication, collaboration, adaptability, and passion for helping businesses grow online. Submit resume, portfolio (if relevant), and a brief message; the agency will review profiles and contact candidates for matching openings.

Work across frontend and backend to design, build, and ship annotation and review features; implement ingestion, storage, user management, and annotation pipelines; integrate model inference into workflows; optimize performance for large images/videos; design APIs and collaborate with product, operations, and annotators.

Lead end-to-end product development for Credify's web and WhatsApp chatbot platforms, define roadmap and API integrations with ERP and loan management systems, drive implementation with engineering and QA, build analytics and reporting, and mentor junior product staff while representing the product internally and externally.

Support the sales team by conducting cold calls, generating leads, assisting with sales strategies, handling administrative tasks, maintaining customer databases/CRM, and collaborating to meet sales targets while gaining hands-on experience.

Lead and execute tax credit and clean energy finance transactions, overseeing negotiations, due diligence, and client relationships. Develop playbooks and compliance software features, represent the firm publicly, and collaborate on new financial products to scale clean energy investment.

Join as the founding full-stack engineer to extend a TypeScript React/Next.js prototype, design product features, integrate AI/OCR, write tests and infrastructure, talk to users, and iterate quickly to drive growth.

Lead and mentor a team of engineers while contributing hands-on to complex features. Define architecture, drive development best practices, conduct code reviews, coordinate cross-functional requirements, and ensure timely delivery of high-quality ecommerce marketplace software.

Build and maintain clean, user-friendly React Native screens and components for iOS and Android. Implement UI/UX from provided designs, integrate APIs, collaborate with backend and AI teams, fix bugs, and keep the codebase organized.

Research Fellows will validate AI-generated paper reproductions, simulations, and results; map research taxonomies; define standards for high-quality AI-assisted science; and create benchmark tasks and evaluations for frontier AI models. Fellows will contribute to a publicly released benchmark paper and open evaluation set as lead or first authors. The contract offers flexible, remote global work for current STEM PhD students or postdocs with published research and hands-on AI agent experience.

Lead organic social strategy and execution across eight D2C consumer brands. Manage channel strategies, content calendars, audience engagement, UGC sourcing, customer storytelling, performance reporting, optimization, and AI-enabled workflows. Partner with Content, Community, Growth, Customer Experience, and Marketing teams while mentoring social media coordinators and maintaining distinct brand voices across Instagram, Facebook, TikTok, YouTube, and other platforms.