cisco Jobs in denver, CO

21 - 40 of 336 Jobs

Senior Network Reliability Engineer - Circuit Ops (Optical)Job Title - Senior Network Reliability Engineer - Circuit Ops (Optical)

Oracle CorporationCompany Name - Oracle Corporation

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Denver, Colorado, USA

Full-time

Job Description The network operations center is responsible for repair and network availability on all of OCI's global network. The resources on this team will support the Tier 1 GNOC as an escalation resource, with additional focus on general network availability of the optical network. Required Experience: Infinera line system & optical line protection Cisco line system & optical line protection Arista or other datacenter switch experience ZR tunable optics experience Understanding of fiber

Sr. O&M Network EngineerJob Title - Sr. O&M Network Engineer

LeidosCompany Name - Leidos

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Aurora, Colorado, USA

Full-time

Description The Digital Modernization Sector at Leidos is seeking a Sr. O&M Network Engineer to support the customer's various wide area networks (WANs) and local area networks (LANs). This position will provide routing and boundary protection to an enterprise level infrastructure across multiple classifications and act as subject matter experts in routing and boundary technologies across multiple vendors. The job duties of Tier O&M Network Engineer are as follows: Tier O&M of Juniper and Cis

Principal Platform Engineer / Linux (Onsite)Job Title - Principal Platform Engineer / Linux (Onsite)

RTX CorporationCompany Name - RTX Corporation

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Aurora, Colorado, USA

Full-time

Date Posted: 2025-06-12 Country: United States of America Location: CO102: 16800 E Centretech Pkwy,Aurora 16800 East Centretech Pkwy Building S75, Aurora, CO, 80011 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: TS/SCI with Polygraph At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to

Voice Systems/Hardware Engineer - TS/SCI with PolyJob Title - Voice Systems/Hardware Engineer - TS/SCI with Poly

LeidosCompany Name - Leidos

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Aurora, Colorado, USA

Full-time

Job DescriptionDescription The National Solutions Group at Leidos has an opening for a Voice Systems/Hardware Engineer to support a client s requirements in a challenging and dynamic setting located at Schriever SFB. The successful candidate will be required to execute, refine, and supervise the processes and procedures of Voice System/Hardware Engineering operations in a purpose-built enterprise environment throughout the operational lifecycle of customer directed mission applications. The VS/

Voice Systems/Hardware Engineer - TS/SCI with PolyJob Title - Voice Systems/Hardware Engineer - TS/SCI with Poly

LeidosCompany Name - Leidos

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Denver, Colorado, USA

Full-time

Network Operations Center (NOC) Designer - Tier 3Job Title - Network Operations Center (NOC) Designer - Tier 3

CACI International, Inc.Company Name - CACI International, Inc.

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Denver, Colorado, USA

Full-time

Network Operations Center (NOC) Designer - Tier 3 Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local Anticipated Posting End: There is not an anticipated end date for this posting since applications are needed on an ongoing basis. Team CACI has an exciting and challenging opportunity available for a Network Engineer supporting an Intellig

Application Security EngineerJob Title - Application Security Engineer

Apex SystemsCompany Name - Apex Systems

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Englewood, Colorado, USA

Full-time

Job#: 2079769 Job Description: Requirements: Experience: Application functional testing, preferably in wireless applications. Creating complex test scenarios to detect weaknesses leading to fraud. Security testing methodology (OWASP). Testing digital web/app applications with a thorough understanding of the wireless telecom domain. Solving complex technical problems independently and in a team environment. Various web/mobile app architectures. Preferred Qualifications: Masters Degree. Professi

Network Engineer III-Docsis, PON, R-PhyJob Title - Network Engineer III-Docsis, PON, R-Phy

Unison Systems, IncCompany Name - Unison Systems, Inc

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Littleton, Colorado, USA

Full-time

Network Engineer Unison Systems is looking for a Telecom Network Engineer II with PON, Docsis, and Harmonic R-Phy experience for our national telecommunications client. This will be a long-term month contract. Our client is located out of Englewood, CO and offers 1 remote day a week. Candidates must be local as we frequently need to physically touch hardware inside of the lab. Cable industry and lab experience is a must have. The candidate will investigate issues on enterprise networks and rel

Computer Systems Analyst - SeniorJob Title - Computer Systems Analyst - Senior

NuAxis LLCCompany Name - NuAxis LLC

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Denver, Colorado, USA

Full-time

We are a federal IT company on a mission to make customer experience (CX) the center of every government solution. Technology is our Passion. People are our Purpose. Grow with us! As a growing business, every NuAxis Innovations employee impacts the success and direction of this company. We all share a true passion for technology and enjoy working together to develop solutions, share ideas, and exchange knowledge. At NuAxis Innovations, we celebrate diversity and the unique perspective each tea

Sr. Staff Network ArchitectJob Title - Sr. Staff Network Architect

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Littleton, Colorado, USA

Full-time

Job Description The Network Design Engineer is responsible for designing, installing, configuring, securing, hardening, troubleshooting, testing, and upgrading network infrastructure, including switches, routers, firewalls, IDS/IPS, encryptors, physical cabling, protected distribution systems (PDS), and software-defined networking (SDN). This role supports mergers and acquisitions (M&A) integration, ensuring seamless onboarding into the enterprise network while maintaining security and performa

Network EngineerJob Title - Network Engineer

Apex SystemsCompany Name - Apex Systems

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Englewood, Colorado, USA

Full-time

Job#: 2079918 Job Description: Description: Job Description: Assists in the planning, forecasting, implementation, and identification of resource requirements for network systems of high complexity. Designs and establishes protocol compatibility standards, develops and implements network enhancements, and makes recommendations for improvement. Responsible for the implementation of network architecture and designs. Core Skills and Responsibilities: Actively and consistently support all efforts

Senior Network EngineerJob Title - Senior Network Engineer

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Littleton, Colorado, USA

Full-time

Job Description As we enter a new era of Strategic Weapon Systems, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing men and women are on a mission to make a difference in the world and every single day we use our unique skills, talents and experiences to design and build solutions to some of the world's hardest engineering problems. Do you want to be part of a culture that inspires employees to envision the impossible, perform with excellence and build incredible produc

Sr. Network Engineer-Troubleshooting (NEIII)Job Title - Sr. Network Engineer-Troubleshooting (NEIII)

Unison Systems, IncCompany Name - Unison Systems, Inc

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Littleton, Colorado, USA

Full-time

Sr. Network Engineer-Troubleshooting Unison Systems is looking for a Sr. Network Engineer with Troubleshooting experience working on the Distribution Network for a Broadband Service Provider for our national telecommunications client. This will be a long-term month contract. Our client is located in Englewood, CO and offers 1 remote day a week. Candidates must be local as we frequently need to physically touch hardware inside of the lab. Cable industry and lab experience is a must have. This per

Senior Network Engineer: InfrastructureJob Title - Senior Network Engineer: Infrastructure

DigitalOceanCompany Name - DigitalOcean

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Denver, Colorado, USA

Full-time

We want people who are passionate about building huge scale networks on the Internet. We're looking for a Senior Network Developer who's excited about building highly scalable networks designed for high-performance GPU and AI workloads. We work with other infrastructure and engineering teams to ensure new products and features have scalable network architectures and will provide the performance our customers require. If you're looking for a fulfilling challenge working with advanced equipment a

Principal Network EngineerJob Title - Principal Network Engineer

Commonspirit HealthCompany Name - Commonspirit Health

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Remote or Englewood, Colorado, USA

Full-time

Overview Inspired by faith. Driven by innovation. Powered by humankindness. CommonSpirit Health is building a healthier future for all through its integrated health services. As one of the nation's largest nonprofit Catholic healthcare organizations, CommonSpirit Health delivers more than 20 million patient encounters annually through more than 2,300 clinics, care sites and 137 hospital-based locations, in addition to its home-based services and virtual care offerings. CommonSpirit has more tha

Senior Cyber Engineer-Information System Security Officer (ISSO)-P3 OnsiteJob Title - Senior Cyber Engineer-Information System Security Officer (ISSO)-P3 Onsite

RTX CorporationCompany Name - RTX Corporation

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Aurora, Colorado, USA

Full-time

Date Posted: 2025-06-11 Country: United States of America Location: CO102: 16800 E Centretech Pkwy,Aurora 16800 East Centretech Pkwy Building S75, Aurora, CO, 80011 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: TS/SCI At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to

Security Dev Test EngineerJob Title - Security Dev Test Engineer

Kforce Technology StaffingCompany Name - Kforce Technology Staffing

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Greenwood Village, Colorado, USA

Contract

RESPONSIBILITIES: Kforce's client in Greenwood Village, CO is seeking a highly skilled Security Dev Test Engineer to join their team and play a critical role in protecting their systems from evolving security threats and fraud-particularly in the wireless cellular and digital identity/payment domains. Summary: The Engineer will focus on front-end web and mobile application security, API security, and telecom-specific risks (e.g., eSIM/SIM/device swaps), applying both a hacker's mindset and stron

Senior VMware ConsultantJob Title - Senior VMware Consultant

URSI Technologies Inc.Company Name - URSI Technologies Inc.

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Remote

Contract

Senior VMware Consultant Remote Duration : 12 months Job Description: The Senior Consulting Engineer is responsible for the hands-on design, implementation, configuration, and optimization of complex IT infrastructure solutions for our diverse clienteleThis senior-level, multi-disciplined engineer will tackle a variety of billable engagements, including project-based deployments, resident engineering assignments, and providing technical expertise during presales activitiesRequirements: 9+ years

SCADA & Automation Engineer 3 -Job Title - SCADA & Automation Engineer 3 -

Sargent & Lundy LLC.Company Name - Sargent & Lundy LLC.

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Englewood, Colorado, USA

Full-time

Description Automation Engineers design SCADA systems to address operational requirements & emerging trends including Smart Grid, Substation & Distribution Automation applications, Battery Energy Storage, and Microgrid controllers. As an Automation Engineer in our Electric Grid Infrastructure Services business unit you will: Engage in fast-paced client projects to plan, engineer, & design SCADA and communications systems. Develop communication block diagrams, panel layout/bill of material drawi

Senior Network Administrator (TS/SCI with Poly Clearance Required)Job Title - Senior Network Administrator (TS/SCI with Poly Clearance Required)

FluorCompany Name - Fluor

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Aurora, Colorado, USA

Full-time

Job Description This position requires an active (or ability to obtain) TS/SCI with Polygraph Clearance The Senior Network Administrator has advanced knowledge within designated Information Technology (IT) area of responsibility that is applied to broad and diverse assignments and associated requirements. This role plans and coordinates activities related to the design, development, implementation and integration of IT solutions. The Network Administrator analyzes, evaluates, and recommends