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

Provides administrative and coordination support to People Operations, including recruitment, pre-employment activities, onboarding, orientation, manager training, document management, employee records, and related departmental processes. Maintains accurate electronic documentation, handles confidential information, coordinates multiple assignments, and communicates with candidates, employees, leaders, and team members.

Lead PROWIBO’s cross-platform social media strategy across LinkedIn, Instagram, Facebook, and X. Create mission-driven content, grow audience engagement, mentor volunteer contributors, introduce planning and performance-tracking systems, monitor trends, and adjust strategy using analytics. This flexible, remote, pro bono role requires at least five years of brand or nonprofit social media experience and strong storytelling, writing, organizational, and mentoring skills.

Coordinate HR operations, including HRIS and employee record maintenance, onboarding, reporting, scheduling, training support, personnel documentation, expenses, and employee assistance. The role requires maintaining confidentiality, applying employment-law knowledge, managing multiple priorities, and collaborating with payroll, managers, and other departments. This temporary full-time position is expected to work from the Littleton office two to three days weekly and may convert to permanent employment.

Lead the growth of the Perenimals IP: set content and channel strategy, define growth metrics, prioritize workstreams, manage a junior social lead and artist, create briefs and a content calendar, and pursue creator/brand/game collaborations and licensing while embedding the IP authentically in communities.

Manage daily Data team operations, research and analyze datasets, build internal and external reports (including an annual Startup Ecosystem Ranking), and maintain/improve Python scripts and data infrastructure to deliver actionable insights.

Own strategic finance, financial modeling, forecasting, investor materials, and finance operations while coordinating supply chain, production, inventory, logistics, and S&OP initiatives. Develop company-wide KPIs, operating cadences, strategic plans, margin improvement opportunities, supplier relationships, vendor engagements, and innovation roadmaps. The role partners closely with the CEO, COO, Operations, Sales, Marketing, and external accounting partners in a fast-paced startup environment.

Design and implement backend features in Go, build data pipelines and REST APIs, work with PostgreSQL and AWS, contribute to scalable system design, and optionally develop React.js user-facing features while collaborating in a fast-paced AI-focused startup.

Serve as the primary customer success contact for hotel clients, helping them adopt, optimize, and expand use of the company’s SaaS platform. Responsibilities include strategic business reviews, data-driven coaching, renewal and expansion support, issue resolution, onboarding transitions, product feedback, and customer journey improvements. The role is remote, requires West Coast residence, executive-level communication, and travel up to 35% for client meetings and industry events.

Design and productionize ML models and agentic systems for intraday financial alpha generation. Build data pipelines, experiment frameworks, and portfolio optimization methods. Collaborate with quants and engineers to move models from research to live trading environments.

Leads end-to-end QA for web and mobile applications, including test planning, execution, reporting, performance testing, security testing, defect management, and release quality assurance. Implements test automation and CI/CD integration while collaborating with product managers, developers, and international teams. The role also drives QA initiatives, investigates vulnerabilities and bottlenecks, and improves quality processes in a fast-paced startup environment.