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

Work across AI, backend, and frontend: curate and clean writing datasets, fine-tune large language models, run training experiments, develop metrics and eval sets, build backend services in Python/Django, and implement frontend features with React.

Own full-cycle enterprise sales independently — prospecting, discovery, demos, negotiation, and close for complex 6–18 month deals. Build outbound pipeline, run multi-stakeholder sales processes, partner with Product/Engineering, and establish long-term enterprise relationships generating SaaS and transaction commissions.

Prepare monthly accounting entries, FX translation, reconciliations, consolidated financial statements and investor reports. Manage cashflow, payments, tax, audit, treasury, internal controls, product costing and KPIs. Lead finance team, coordinate with local firms, support strategic planning and cost-savings initiatives.

Intern will build Zepho's social media presence, create content, manage influencer relationships, and track performance metrics. This role offers potential for full-time conversion.

Own and grow a 45K Facebook community, manage comment moderation across social platforms, run a TikTok affiliate Discord, design shareable programming and ambassador initiatives, and convert community activity into repeat revenue via codes, landing pages, bundles, referrals, and early-access drops while surfacing customer insights to product and retention teams.

Volunteer short-form video editor producing Instagram Reels and TikToks from raw event footage. Add captions, nasheeds, effects, and apply pacing and hooks to drive engagement aligned with Hasana’s mission.

Own end-to-end UI/UX for Headstarter's consumer and B2B products, create user flows, wireframes, high-fidelity designs and a cohesive design system, collaborate with founders and engineers, iterate on feedback and data to drive product and hiring outcomes.

Build end-to-end user features under senior guidance: implement REST endpoints in Node.js/TypeScript, microservices in Python, maintain PostgreSQL schemas, process background jobs with QStash/Upstash, deploy to Cloudflare Workers/Pages/R2, write tests, and collaborate with product/design on React UI components.

Lead platform architecture, development, and reliability for an AI-driven molecular discovery product. Build agentic workflows, full-stack UI features, integrate Console/Builder/Solutions apps, and implement API integrations with sequence and assay providers to support model training, deployment, and researcher workflows.

Contract 2D Art Generalist creating concept art, character illustrations, and game art. Collaborate with the team to develop a cohesive visual direction, contribute art assets to the project, and iterate based on feedback. Work varies week to week; potential for additional future work.