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

Test new web and mobile features, report bugs and usability issues, run manual and automated tests, review requirements and designs, improve QA processes and documentation, and provide UI/UX feedback while collaborating with product, design, and engineering teams.

Lead development and reliability of real-time and batch payment-processing systems across authorization, clearing, settlement, disputes, and card-network integrations. Build scalable, secure, low-latency services using Java, Python, Kotlin, and AWS; improve network peering infrastructure, failover, and capacity. Own initiatives from planning through launch, participate in on-call rotations, reduce technical debt, and drive cross-functional engineering improvements and strategic planning.

Design and document mechanical building systems, including HVAC, plumbing, fire protection, and energy modeling. Perform mechanical calculations, thermal simulations, system layouts, and construction administration tasks under experienced project guidance. Develop proficiency with Revit, AutoCAD, TRACE, IES, building codes, and industry standards while supporting engineering distribution and reading construction plans.

Own and grow Mattermost’s Intelligence Community territory through enterprise SaaS sales, strategic renewals, expansion, and net-new acquisition. Lead complex, multi-million-dollar sales involving security reviews, ATO processes, classified procurement, and executive stakeholders. Build co-sell relationships with cleared Federal Systems Integrators, manage partner-influenced opportunities, maintain Salesforce forecasting discipline, and achieve annual revenue quotas across IC agencies and mission-aligned organizations.

Develop and manage social media content, campaigns, influencer programs, and daily channel activity. Create and edit posts, engage with followers, monitor performance using analytics tools, prepare monthly reports, and recommend strategy improvements. The role also requires staying current with social media trends, applying best practices, and collaborating effectively in a fast-paced environment.

Acquire and grow mid-market customers for AI-powered customer experience, contact center, unified communications, and business communication solutions. Generate pipeline through prospecting, referrals, networking, partners, and inbound opportunities; manage complex multi-stakeholder sales cycles; conduct consultative discovery; develop account plans; present solutions; maintain CRM data and forecasts; use AI-enabled sales tools and analytics; and collaborate with marketing, partners, solution consultants, customer success, and product teams.

Build and iterate full-stack systems powering AI agents, from user-facing experiences through orchestration and deployment. Research agent orchestration, prompting, and model alignment approaches; collaborate with Product, Design, and Engineering to improve usability; document findings, share technical learnings, and participate in reviews and technical discussions.

Support end-to-end onboarding of HR, payroll, benefits, and leave clients. Configure HRIS platforms, migrate and validate employee and payroll data, establish benefits EDI and GL integrations, coordinate cross-functional workstreams, maintain implementation plans, and ensure smooth handoffs to service teams. The role also improves workflows through automation and AI while managing client expectations, timelines, testing, and go-live readiness.

Owns the V2X DC bidirectional charging product from late-stage design through validation, certification, launch, and ramp. Responsibilities include managing suppliers and internal engineering, driving board development, safety and utility approvals, automotive OEM compatibility, business-case economics, gate reviews, go-to-market readiness, and initial field performance. The role serves as the single accountable decision-maker and promotes AI-enabled product development and execution.

Leads Hint’s brand growth agenda, annual planning, integrated campaigns, innovation strategy, commercial partnerships, and consumer engagement across social, creators, partnerships, and experiential channels. Owns campaigns from brief through launch, guides creative development, aligns cross-functional teams, establishes performance measures, and drives brand and commercial results. Develops high-performing teams while balancing strategic leadership with hands-on execution in a fast-moving consumer marketing environment.