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

Lead design, development, and modernization of enterprise Ruby/Rails backend systems. Architect REST and GraphQL APIs, build cloud-native apps (AWS/Azure), drive CI/CD and DevSecOps, troubleshoot production issues, mentor engineers, and establish secure, scalable engineering practices across the full software lifecycle.

Coordinates third-party service appointments, work orders, technician assignments, site readiness, cabling quotes, installations, troubleshooting, and partner communications. Supports onsite technicians in real time, manages vendor and scheduling platforms, evaluates contracted technicians, resolves operational issues, and maintains partner relationships. The role requires customer service, technical troubleshooting, extensive international travel, flexible scheduling, physical site work, and strong organizational and communication skills.

Leads Tilt Collective’s external affairs, reputation, media relations, brand strategy, executive communications, digital engagement, and events strategy. Develops narratives and messaging for philanthropy audiences across climate, health, and nature; manages agencies and media relationships; oversees brand consistency and digital channels; supports fundraising communications; and measures external engagement effectiveness globally.

Lead hands-on development of scalable software, APIs, integrations, automations, and core product features. Architect systems, make technical decisions, ensure code quality, optimize performance and security, and collaborate across Product, Design, Data, and Business teams. Mentor developers, conduct code reviews, shape the technical roadmap, and improve engineering workflows, CI/CD, and architecture. The role also explores AI, automation, and API-first technologies in a fully remote startup environment.

Designs, manages, and supports LAN/WAN, wireless, SD-WAN, and IT/OT segmented network infrastructure across laboratory, manufacturing, and corporate environments. Configures switches, routers, and firewalls; troubleshoots connectivity issues; supports network security measures; monitors network performance; and documents technical procedures, configurations, and project plans. Requires strong routing, switching, VPN, IPv6, cloud, virtualization, and network security knowledge, plus a bachelor’s degree and at least three years of experience.

Own lifecycle CRM strategy and cross-channel campaigns across email, push, in-app, and browser channels. Manage segmentation, journey architecture, automation, personalization, integrations, reporting, and optimization. Partner with Marketing, Product, MarTech, Legal, Compliance, Creative, and Engineering teams to improve onboarding, retention, engagement, reactivation, and product usage while ensuring regulatory compliance.

This sample job contains no substantive responsibilities, qualifications, compensation, technology requirements, travel expectations, or clearance information. It appears to be a test listing created for API integration validation.

Sample job created for API integration testing. No specific responsibilities, qualifications, technologies, compensation, travel, or clearance requirements are provided.

Designs and maintains automated API, UI, security, performance, integration, and end-to-end tests for AI-powered systems. Integrates testing into CI/CD pipelines, validates data across distributed services and pipelines, assesses AI-generated outputs, and performs security and load testing. Collaborates with Engineering, QA, Product, and Operations to identify root causes, improve testing standards, and support release validation.

Build backend APIs, GraphQL services, ETL pipelines, event-driven systems, and distributed infrastructure for cybersecurity workflows involving vulnerability intelligence, EDR validation, deception, tripwires, and autonomous defense. The role includes production reliability, monitoring, incident response, debugging, customer-facing security features, and collaboration with engineering and product teams. The engineer will also mentor less experienced developers and ensure security automation is safe, explainable, and reversible.

Provides senior legal guidance for global payments and fintech operations, including product design, market expansion, payment regulations, cross-border funds flow, commercial agreements, treasury, settlement, and regulatory reviews. Partners with Product, Engineering, Finance, Risk, and Compliance teams to manage legal and operational risk, negotiate complex agreements, and develop scalable compliance approaches.