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

Install, configure, and support LAN/WAN and server systems in collateral/SCI/SAP environments. Administer Windows and RHEL servers, virtualization, networking, and security tools (SIEM, IDS/IPS, Nessus). Execute day-to-day operations, O&M checklists, incident response, RMF-related tasks, and assist in risk analysis and security monitoring. Provide user technical support and maintain DoD policy compliance.

Administer, secure, and sustain enterprise Exchange and M365 messaging across multi-network environments. Ensure high availability, mail flow, authentication/PKI, backup/recovery, patching, compliance, and migration/upgrade support. Troubleshoot complex routing, DNS, mobile access, and hybrid integration issues while maintaining documentation, SOPs, and remediation of vulnerabilities to support mission-critical communications.

Provide day-shift help desk support: troubleshoot and resolve hardware, software, network, and telecommunication issues via phone and ticketing. Maintain records, escalate to specialists, and alert management to recurring problems. Requires TS/SCI with polygraph and Security+ certification.

Design, build, and optimize enterprise database solutions and data pipelines. Ensure performance, scalability, security, and compliance (IATT/ATO). Provide Tier 3 database support, monitoring integration, and ETL/data consolidation across mission-critical systems.

Manage and secure central hub network infrastructure and VPN connectivity, configure and maintain routers, switches, firewalls, and encryption devices, administer Cisco Call Manager, SolarWinds and Microsoft NPS, troubleshoot network issues, perform capacity planning, maintain documentation, ensure compliance with security standards, and provide on-call support for mission-critical operations.

Provide day-to-day IT and information assurance support for Collateral/SCI/SAP environments: maintain servers, firewalls, networks and security monitoring; perform account management, patching, hardware/software configuration, VTC administration, COMSEC/media control, prepare and review authorization packages, identify vulnerabilities and implement countermeasures, and support help desk and troubleshooting in a 24/7 shift setting.

Lead QA for enterprise engineering, operations, and tech refresh services. Develop and report KPIs, drive process improvements, support governance/audits, manage risk and readiness, and ensure service quality across lifecycle.

Administer and maintain a large-scale NGDE thin client and virtual desktop environment, ensuring availability, performance, and security. Monitor infrastructure health, manage consoles/licensing/routing, support backend components, apply patches and firmware, troubleshoot complex authentication and routing issues, and maintain SOPs and documentation while collaborating with network, cybersecurity, and virtualization teams.