JobotNewMechanical Engineer JobotMechanical EngineerDenver, CO$80,000–$115,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We prioritize our employees' well-being, fostering work/life balance and a positive culture, which we believe gives us a competitive edge and ensures excellent client experiences.
JobotNewElectrical Design Engineer EIT/PE JobotElectrical Design Engineer EIT/PEDenver, CO$80,000–$115,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Ideal candidates will have experience with engineering consulting firms, electrical power, lighting, fire alarm, and building systems for institutional and commercial buildings, as well as proficiency in Revit and AutoCAD.
JobotNewGeotechnical Engineer JobotGeotechnical EngineerArvada, CO$90,000–$160,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. With a strong presence in Colorado, including a major office in Wheat Ridge, the company supports a wide range of infrastructure and development projects such as transportation systems, water resources, energy facilities, and commercial construction.
JobotNewVDC Engineer JobotVDC EngineerLongmont, CO$35–$45 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The ideal candidate will have a robust understanding of Building Information Modeling (BIM) and Virtual Design and Construction (VDC) processes, and will be adept at using software such as AutoCAD, Revit and Navisworks.
JobotNewProgramming Engineer JobotProgramming EngineerGreenwood Village, CO$90,000–$120,000 / yearThe ideal candidate will serve as a key link between engineering, production, and project teams while helping drive continuous improvement initiatives, supporting team development, and maintaining operational excellence throughout all phases of manufacturing and fabrication. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.
JobotNewProject Engineer JobotProject EngineerDenver, CO$65,000–$90,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. This position is an excellent opportunity for those seeking to enhance their career in the Mechanical Construction industry, offering a chance to work on a diverse range of projects, with the potential for significant professional growth.
JobotNewManufacturing Engineer JobotManufacturing EngineerGreenwood Village, CO$90,000–$120,000 / yearThe ideal candidate will serve as a key link between engineering, production, and project teams while helping drive continuous improvement initiatives, supporting team development, and maintaining operational excellence throughout all phases of manufacturing and fabrication. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.
JobotNewSurvey & Layout Engineer JobotSurvey & Layout EngineerDenver, CO$35–$45 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The role requires a candidate who is comfortable working in dynamic field environments and has a collaborative mindset with a commitment to quality and precision.
JobotNewCivil Project Engineer JobotCivil Project EngineerLoveland, CO$80,000–$160,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Responsibilities will include but are not limited to the design and permitting of construction plans for site layout, grading, drainage, erosion control, stormwater treatment and conveyance, water and sewer, roadway, pump station and force main design.
JobotNewElectrical Design Engineer JobotElectrical Design EngineerDenver, CO$100,000–$120,000 / yearWe are a leading electrical engineering, design, and consulting firm with nearly three decades of experience delivering innovative lighting, power, communications, and technology systems throughout the Western U.S. Our portfolio spans airports, healthcare facilities, transportation hubs, educational institutions, and sports venues. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.
GE VernovaNewSenior Steam Turbine Control Software Standards & Methods Engineer GE VernovaSenior Steam Turbine Control Software Standards & Methods EngineerLongmont, CO$124,500–$207,700GE Vernova Inc. or its affiliates (collectively or individually, “GE Vernova”) sponsor certain employee benefit plans or programs GE Vernova reserves the right to terminate, amend, suspend, replace, or modify its benefit plans and programs at any time and for any reason, in its sole discretion. High experience in review of contracting documentation and customer specifications, with experience creating equipment specifications and detailed design documentation for the development of appropriate product solutions.
ACE Thermal SystemsSupplier Quality Engineer (Aerospace) ACE Thermal SystemsSupplier Quality Engineer (Aerospace)Thornton, CO$90,000–$130,000 / yearAs your single source, dedicated supplier for bleed air systems, air conditioning systems, cabin pressure control systems, components, and more, the ACE team acts as a key extension of your team, providing intelligent innovation and proven design methodologies to deliver safe, reliable, air control technologies and systems for aircraft. Description:At ACE Thermal Systems, we design, engineer, manufacture, and support high-performance environmental control systems (ECS) and components for extreme temperature and operating conditions and reliable everyday use.
LeidosSenior Civil/Structural Engineer LeidosSenior Civil/Structural EngineerDenver, CO$92,300–$166,850Clients requiring subject matter expertise consulting could include private equity, infrastructure and hedge funds, investment and commercial banks, private developers, legal and financial advisors, original equipment manufacturers, DOE, and EIA, among others. Our services include engineering, planning, project management, construction management, and commissioning for electric power substations and transmission and distribution lines; protection and controls design; and electrification programs.
LeidosCivil/Structural Engineer LeidosCivil/Structural EngineerDenver, CORemote$73,450–$132,775Clients requiring subject matter expertise consulting could include private equity, infrastructure and hedge funds, investment and commercial banks, private developers, legal and financial advisors, original equipment manufacturers, DOE, and EIA, among others. Our services include engineering, planning, project management, construction management, and commissioning for electric power substations and transmission and distribution lines; protection and controls design; and electrification programs.
AxelonSr. Data Center Engineer AxelonSr. Data Center EngineerBroomfield, COPerform Asset Management tasks in Configuration Management Database (CMDB) and maintain CAD and Data Center Infrastructure Management (DCIM) elevation/floorplan data. This role will provide infrastructure management for essential operational components such as policies, processes, equipment, data, and external contacts for overall datacenter support operations.
JouléGlobal Quality Digital Operations - Engineer 4 - SAP S4 Hana JouléGlobal Quality Digital Operations - Engineer 4 - SAP S4 HanaLakewood, CO$125,800–$157,200 / year8 years of global quality experience, preferably with a medical device company, but would consider pharma or biotech, so that candidate can contribute to process designs and workflows within ERP (QMS, Quality Management, Master Data Governance, Batch Release, Materials Management, Production Planning, Document Control, CAPA's, Investigations and Document Management System to support Quality operations.) . SAP S/4HANA Configuration & Optimization: Lead the setup, customization, and continuous improvement of SAP S/4HANA modules such as Quality Management, Master Data Governance, Batch Release, Materials Management, Production Planning, and Document Management System to support Quality operations.
LeidosLead Transmission Line Engineer LeidosLead Transmission Line EngineerDenver, CORemote$92,300–$166,850Additionally, the candidate will direct a team of engineers that regularly perform engineering analyses, PLS-CADD modeling, structure loading calculations, design structure framing and hardware assemblies, draft plans and specifications, and prepare bill of materials and procurement documents across project planning, engineering, environmental, permitting, and construction management phases. This is a senior leadership role with primary responsibilities in client relations, staff management, proposal development, scope creation/change, project execution, and new business capture for the teams’ full book of work.
Concrete Frame Associates, LLCFormwork Engineer I - Denver, CO Concrete Frame Associates, LLCFormwork Engineer I - Denver, CODenver, COThe Formwork Engineer supports projects by preparing structural formwork calculations, drafting detailed structural concrete and formwork drawings and coordinating closely with project teams to ensure design accuracy, safety, and cost efficiency. Prepare concrete structure and formwork drawings by incorporating information from project drawings, bulletins, sketches, RFIs, and other trade shop drawings, and coordinate submittals with customers.
United RentalsNewEngineered Systems Region Product Development Manager United RentalsEngineered Systems Region Product Development ManagerDenver, CO$119,130–$196,570 / yearFirm working knowledge of existing products and methods used in support of excavation systems and how they are used in the rental market; Proficiency with MS Office (specifically Word, and Excel). The actual pay rate offered to candidates varies depending upon a wide range of factors including specific position, education, training, experience, skills, and ability.
Davron LLCNewManufacturing / Production Engineer Davron LLCManufacturing / Production EngineerEnglewood, CO2-5 years of manufacturing or production experience with a four-year degree in Engineering, Manufacturing, Industrial Engineering, or a related field, or 5-10 years of experience in manufacturing, production, fabrication, or drafting. This is an exciting opportunity to join a fast-moving, growth-focused team where engineering excellence, craftsmanship, production leadership, and forward-thinking technology come together to shape the future of fabrication and design.
Concrete Frame Associates, LLCNewProject Engineer I - Denver, CO Concrete Frame Associates, LLCProject Engineer I - Denver, CODenver, COThe Project Engineer supports the planning, design, and execution of construction projects by drafting detailed structural concrete and formwork drawings and coordinating closely with project teams to ensure design accuracy, safety, and cost efficiency. Prepare concrete structure and formwork drawings by incorporating information from project drawings, bulletins, sketches, RFIs, and other trade shop drawings, and coordinate submittals with customers.
Vaco LLCNewIT Support Technician Vaco LLCIT Support TechnicianLakewood, CO$28–$29Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs. This role focuses on ensuring optimal hardware/software performance, supporting end-users, and maintaining smooth daily operations in a high-paced, patient-focused environment.
Pyramid Consulting, IncVideo Operations Engineer Pyramid Consulting, IncVideo Operations EngineerDenver, CO$50–$52 / hourBy applying to our jobs you agree to receive calls, AI-generated calls, text messages, or emails from Pyramid Consulting, Inc. and its affiliates, and contracted partners. Troubleshoot complex production issues (video delivery, middleware, customer access) .
Sturgeon Electric CompanyProject Engineer I T&D Sturgeon Electric CompanyProject Engineer I T&DHenderson, CO$58,500–$80,000Comprehensive benefits package - Medical, Dental, Vision, Teledoc, Hearing, Prescriptions, Mental Health, Employee Assistance Plan (EAP), Short Term Disability, Retiree Coverage, and Life Insurance under LINECo – (Low deductibles and out-of-pocket maximums) - Fifteen Dollar weekly premium for employee or employee plus family coverage. Since 1912, Sturgeon Electric Company, Inc. (Sturgeon Electric) – a subsidiary of MYR Group Inc. – has provided complex, large-scale electrical construction services for our clients throughout the western United States.
Barber-Nichols LLCNewSenior Supplier Development Engineer Barber-Nichols LLCSenior Supplier Development EngineerArvada, CO$120,000–$140,000 / yearITAR Requirements: To conform to U.S. Government commercial space technology export regulations, including the International Traffic in Arms Regulations (ITAR), 8 U.S.C. § 1324b(a)(3), applicants for employment at Barber-Nichols must be a U.S. citizen or national, lawfully admitted for permanent residence into the U.S. (i.e., current green card holder), or lawfully admitted as a refugee or granted asylum under 8 U.S.C. § 1157-1158. The Senior Supplier Development Engineer performs strategic sourcing/supplier-related analysis, assesses supplier capabilities throughout program lifecycle, and works closely with procurement to evaluate and approve/disqualify suppliers through data analysis and auditing.
System OneNewProject Engineer System OneProject EngineerDenver, CO$37–$40 / hourAttend morning POD meetings, collaborating with operations and reliability personnel throughout the day, overseeing contractors performing/executing on the projects in the field and would be responsible for all the administrative project paperwork, such as developing scopes of work, technical specifications, helping get quotes for equipment, bidding out if necessary and coordinating material deliveries and installation with the plant as well. Project Engineer Responsibilities: Plant Fleet based engineering role to support energy supply projects group to help manage capital projects at the power plants across the region.
Gables Search GroupElectrical Engineer Gables Search GroupElectrical EngineerEnglewood, COProvide reports to the Project Manager about status of assignment(s) with respect to project milestones, schedule, budgets, delays and adverse problems, Assists with the development of manpower, man-hour, and labor cost requirements for a project and can monitor them to aid in evaluating budget limitations, Takes the lead on estimating tasks and performs material take-offs for a specific discipline, Ensure quality, quantity and completeness of the assigned engineering tasks, Adjusts project milestones schedules as required. a.)Have technical expertise to review and approve Electrical engineering calculations and drawings in the area of:power distribution equipment, power system short circuit, load flow, one-line diagrams, cable ampacity calculations, cable schedules, cable and raceway routing, schematics and wiring diagrams, grounding, lightning and lighting drawings, E-House layout drawings and heat loss calculations, procurement specifications, material requisitions and technical bid analysis.
Gables Search GroupStructural Engineer - Aviation Gables Search GroupStructural Engineer - AviationLakewood, CO$115,000–$135,000This is a rare opportunity to work on nationally recognized aviation projects—from international terminals to regional airports, aircraft hangars, flight training centers, and general aviation facilities. As a project manager and technical lead, you'll take ownership of high-impact projects with budgets ranging from $10K to $1M+, helping shape the infrastructure of airports across the country.
VAST DataSenior Systems Engineer - Higher Ed and SLED VAST DataSenior Systems Engineer - Higher Ed and SLEDDenver, CODemonstrate technical leadership and subject matter expertise on storage products, distributed storage architectures, file systems, and competitive storage offerings in the DAS, NAS and SAN product spaces. We are building the enterprise software infrastructure to capture, catalog, refine, enrich, and protect massive datasets and make them available for real-time data analysis and AI training and inference.
Gables Search GroupSenior Civil Project Engineer Gables Search GroupSenior Civil Project EngineerLakewood, CO$110,000–$130,000Key responsibilities include preparing master plans, conceptual designs, proposals, and project budgets; serving as a primary point of contact for clients and contractors; overseeing AutoCAD/Civil 3D design work; attending project meetings; reviewing submittals and RFIs; mentoring engineering and CAD staff; and supporting business development and client account management. Required qualifications include a bachelor’s degree in civil engineering from an ABET-accredited program, a minimum of 7 years of site development experience, and a PE license in Colorado (or the ability to obtain one within 3 months).
System OneSenior Mechanical Engineer - Remote System OneSenior Mechanical Engineer - RemoteDenver, CORemote$55–$75 / hourThis position will play a key role in managing multi-discipline engineering efforts, supporting EPCm-style projects, and ensuring successful project execution across safety, quality, cost, and schedule. This role is ideal for a hands-on engineering professional who is experienced across the full project lifecycle—from concept and pre-FEED through commissioning and startup.
AxelonSupplier Quality Engineer AxelonSupplier Quality EngineerLongmont, COWork with commercial, engineering, and manufacturing teams to eliminate quality barriers. Minimum 8-10 years industry experience in engineering/design, quality, manufacturing.
EsriNewSoftware Development Engineer II - JavaScript Web Development EsriSoftware Development Engineer II - JavaScript Web DevelopmentDenver, CO$97,240–$162,240 / yearYou’ll collaborate with cross-functional teams to deliver scalable solutions built on ArcGIS to visualize, analyze, and interact with geospatial data, drive intelligent automation and predictive insights through AI, and bring real-world spatial data into digital environments through reality capture and digital twins. Working knowledge of the Esri Calcite Design System and ArcGIS Maps SDK for JavaScript, or similar mapping frameworks, to build interactive and accessible map-based user interfaces.
System OneElectrical Project Engineer System OneElectrical Project EngineerDenver, CO$75–$78.50 / hourSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Experience working with utilities or design firms on dispatchable technologies, especially large-frame combustion turbines .
Kforce Inc.DevOps Engineer Kforce Inc.DevOps EngineerGreenwood Village, CO$55–$66The ideal candidate will have strong experience in DevOps, cloud infrastructure, automation, containerization, and network technologies, with the ability to troubleshoot complex operational issues in fast-paced enterprise environments. Employee pay is based on factors like relevant education, qualifications, certifications, experience, skills, seniority, location, performance, union contract and business needs.
Kforce Inc.DevOps Engineer III - Onsite Kforce Inc.DevOps Engineer III - OnsiteGreenwood Village, CO$55–$65The ideal candidate will have strong experience in DevOps, cloud infrastructure, automation, containerization, and network technologies, with the ability to troubleshoot complex operational issues in fast-paced enterprise environments. Employee pay is based on factors like relevant education, qualifications, certifications, experience, skills, seniority, location, performance, union contract and business needs.
Kforce Inc.NewSenior Backend Engineer (TypeScript/Nodejs) Kforce Inc.Senior Backend Engineer (TypeScript/Nodejs)Greenwood Village, CO$45–$67.50Employee pay is based on factors like relevant education, qualifications, certifications, experience, skills, seniority, location, performance, union contract and business needs. By clicking “Apply Today” you agree to receive calls, AI-generated calls, text messages or emails from Kforce and its affiliates, and service providers.
Gables Search GroupMechanical Engineer / Designer Gables Search GroupMechanical Engineer / DesignerEnglewood, COWe are seeking an experienced CAD Designer / Mechanical Designer to support structural and mechanical engineering projects focused within the bulk material handling industry. This role will be heavily involved in 2D/3D CAD modeling, drafting, layouts, fabrication drawings, and engineering support for large-scale material handling systems and equipment.
AxelonApplication Engineer AxelonApplication EngineerLongmont, COExperience in Unit Control (Gas Turbine, Steam Turbine, Aero, Hydro, Nuclear), DCS, Generator (Excitation/Static Starters), Human Machine Interface (HMI), Cyber Products. Ensure accurate cost estimation including project risk management: (i) technical, (ii) execution, and (iii) commercial risks within the Inquiry to Order (ITO) process.
EsriNewProduct Engineer II – Utility Solutions EsriProduct Engineer II – Utility SolutionsDenver, CO$79,664–$133,120 / yearAs the Product Engineer II – Utilities, you will collaborate with customers, industry teams, and other product development team members to design, develop, and support the right geospatial solutions for electric, gas, water, sewer, stormwater and telecommunications agencies. Design and author test cases for functionality, performance, scalability, and durability; execute both manual and automated tests, analyze test results, and report results.
Kforce Inc.Cloud Solutions Engineer III-Azure / GCP Cloud Kforce Inc.Cloud Solutions Engineer III-Azure / GCP CloudGreenwood Village, CO$58–$65Kforce has a client in Greenwood Village, CO that si seeking a senior-level Cloud Solutions Engineer III to support a highly visible and critical cloud infrastructure environment supporting enterprise AI/ML initiatives. This is a hands-on engineering role focused on Azure cloud infrastructure, networking, security, automation, model deployment support, and cloud operations.
LeidosNewMid-Level SQL Engineer LeidosMid-Level SQL EngineerAurora, CO$87,100–$157,450April 16, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
Kforce Inc.Lead Firmware Embedded Engineer Kforce Inc.Lead Firmware Embedded EngineerWheat Ridge, CO$135,000–$165,000Employee pay is based on factors like relevant education, qualifications, certifications, experience, skills, seniority, location, performance, union contract and business needs. By clicking “Apply Today” you agree to receive calls, AI-generated calls, text messages or emails from Kforce and its affiliates, and service providers.
Gables Search GroupStructural Engineer Gables Search GroupStructural EngineerEnglewood, COSUMMARY: Performs structural engineering analysis and design in order to meet project and client requirements in the mining industrybyperformingthefollowingduties. ComputerSkills/Experience: Drawing Software: 2D & 3D using AutoCad, Advance Steel, SolidWorks (desired but not required).
LeidosNewMid-Level Backend Software Engineer LeidosMid-Level Backend Software EngineerAurora, CO$87,100–$157,450If you’ve been building your skills in backend development, object‑oriented programming, and mission‑driven engineering, and you’re ready for work that actually moves the needle, this is the kind of opportunity cleared engineers pursue when they want to grow while making real impact. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
United AirlinesNewFacilities Maintenance Technician - Building Engineer - Denver International Airport United AirlinesFacilities Maintenance Technician - Building Engineer - Denver International AirportDenver, COOur Technical Operations team is full of aircraft maintenance technicians, engineers, planners, ground equipment and facilities professionals, and supply chain teams that help make sure they’re well taken care of and ready to get our customers to their desired destinations. Requires a thorough knowledge of general building maintenance with emphasis on electrical solving, including AC & DC circuits, high voltage (480), high amperage and some 400 cycle equipment.
LeidosNewSr. Software Engineer TS/SCI Polygraph LeidosSr. Software Engineer TS/SCI PolygraphAurora, CO$131,300–$237,350You will provide software process management and control throughout the coding portion of the software development process and will promote code reuse and cross-program collaboration while reducing maintenance costs by creating common functions and shared actions for developers and testers. Must have experience or familiarity with multiple Java frameworks: Spring to include Boot and Data, Java Enterprise Edition (JEE) (i.e., JPA, EJB, JTA, Servlet), Jackson, Jersey, Swing, JavaFX.
TTECSenior AV Engineer TTECSenior AV EngineerEnglewood, CO$70,000–$80,000 / yearMinimum 3 years’ experience with Video Conferencing/AV integration design, engineering, installation and support, Experience with A/V Platforms: QSC / Qsys environment, Crestron, Extron, Shure, Sennheiser, Mackie, Dante, Running Live Sound, ETC Lighting, DMX, Global Cache, Video Wall processors / RGB Spectrum, IP Cameras Platforms. You will be responsible for all aspects surrounding the engineering, configuration, installation, maintenance, training, and upgrade of our Global IP-Video Tandberg/Cisco and Web based (Zoom) infrastructure (Operating in 16 different Countries).
Adex CorporationData Center Optical Engineer Adex CorporationData Center Optical EngineerDenver, COTemporaryContractorFull timeOptical Testing and Troubleshooting: Complete all activities associated with physically placing equipment identified in project specification documents including but not limited to, routing, lacing, labeling, terminating and local / remote testing and turn up of ethernet, switchboard, fiber, and power cables. The ideal candidate will have experience in racking, cabling, and stacking equipment, decommissioning, break-fix, remote hands services, hardware replacement, and network transport optical troubleshooting.