Field Services Specialist (Northeast) Medline IndustriesField Services Specialist (Northeast)Work From Home, MD$50,000–$75,000 / yearFull timeBachelor’s degree and at least 2 years of sales or customer service related experience OR high school diploma or equivalent and at least 4 years of sales or customer service related experience. Assist sales partners with onboarding new clients, ensuring smooth integration, managing material collection, and overseeing overall program performance.
NewDigital Pathology Field Service Engineer TD SYNNEXDigital Pathology Field Service EngineerWashington, DCWe are looking for highly skilled and customer-focused Field Service Engineers to support our cutting-edge digital pathology systems in clinical environments. Connect with Your Community: Participate in internal, peer-led inclusive communities and activities, including business resource groups, local volunteering events, and more environmental and social initiatives.
NewSenior Real Estate Development Manager, AWS Infrastructure Services Amazon Data Services, Inc.Senior Real Estate Development Manager, AWS Infrastructure ServicesArlington, VAWe are looking for a talented professional to join the AWS Real Estate Team who will operate on both strategic and tactical levels to support the expansion of AWS’s Data Center Network in the U.S. In this role, you will work directly with land owners, data center developers, PE firms, local jurisdictions, land use attorneys and consultants to identify and secure agreements to facilitate AWS’s expansion. We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.
Traveling Field Technician Sebenza, LLCTraveling Field TechnicianMcLean, VA$25 / hourContractorSebenza LLC, is a leading consulting firm in the technology industry, our client provides a range of services to our clients including IT solutions, network infrastructure, and cybersecurity. We are seeking a highly motivated and skilled Cable Field Technician to join our team for a critical initiative, modernizing the IT infrastructure for a government project.
41838 Automotive Service Advisor/Writer Ourisman Chrysler Jeep Dodge Of Alexandria41838 Automotive Service Advisor/WriterAlexandria, VAFull timeThey greet and consult customers on service needs, perform a thorough vehicle walk around inspection as part of the write-up, sell and up sell services by emphasizing value, keep customers updated on services, field all live service calls, and take ownership of the customers experience by carrying out those additional assignments that allow the dealership to leave an impressionable experience with the customer. We have determined some factors that may enable your success as a Service Advisor: One year of experience in a service advisor role strongly preferred.
NewField Service Mechanic B Herc Rentals IncField Service Mechanic BManassas, VA$28–$32 / hourAbility to operate and test equipment such as boom lifts, forklifts, compressors, portable and stationary generators, hydraulics, pumps and assorted tools and equipment. You will serve as a valued resource for utilizing your mechanical expertise to ensure Herc fleet remain in proper operating condition on our customer jobsites, at all times.
NewField Service Mechanic C Herc Rentals IncField Service Mechanic CGainesville, VA$25–$27 / hourYou will serve as a supportive resource for utilizing your mechanical expertise to ensure Herc fleet remain in proper operating condition on our customer jobsites, at all times. Ability to operate and test equipment such as boom lifts, forklifts, compressors, portable and stationary generators, hydraulics, pumps and assorted tools and equipment.
NewField Service Mechanic A - HVAC, Pump & Power Herc Rentals IncField Service Mechanic A - HVAC, Pump & PowerBaltimore, MD$39–$41 / hourAbility to operate and test equipment such as boom lifts, forklifts, compressors, portable and stationary generators, hydraulics, pumps and assorted tools and equipment. You will serve as a go-to resource for utilizing your mechanical expertise to ensure Herc fleet remain in proper operating condition on our customer jobsites, at all times.
NewField Service Mechanic A Herc Rentals IncField Service Mechanic AGainesville, VA$38–$40 / hourAbility to operate and test equipment such as boom lifts, forklifts, compressors, portable and stationary generators, hydraulics, pumps and assorted tools and equipment. You will serve as a go-to resource for utilizing your mechanical expertise to ensure Herc fleet remain in proper operating condition on our customer jobsites, at all times.
IT Project Manager (VMware / Broadcom Professional Services) Calibre SystemsIT Project Manager (VMware / Broadcom Professional Services)Alexandria, VACALIBRE Systems, inc, an employee owned mission focused solutions and digital transformation company, is seeking an IT Project Manager to support Broadcom (VMware) Professional Services engagements. This role ensures projects are delivered on time, within scope and budget, while maintaining high levels of customer satisfaction.
RENTAL FIELD SERVICE TECHNICIAN Carter Machinery Company, IncRENTAL FIELD SERVICE TECHNICIANSterling, VA$35–$49.94 / hourThe Rental Field Service Technician applies basic mechanical aptitude to perform maintenance and repairs to Caterpillar and allied rental equipment in the shop and at customer job sites; applies troubleshooting techniques and determines proper repair procedures; prepares parts requisitions. Required to stand; walk; use hands to finger, handle, or feel; reach with hands and arms; climb or balance; stoop, kneel, crouch, or crawl and talk or hear.
FIELD SERVICE TECHNICIAN Carter Machinery Company, IncFIELD SERVICE TECHNICIANSterling, VA$35–$49.94 / hourService, diagnose and repair all machine components and systems, including engine/components air conditioning units; change hoses; repair cylinders, buckets, and booms; at customer's jobsite. Regularly required to stand; walk; use hands to finger, handle, or feel; reach with hands and arms; climb or balance; stoop, kneel, crouch, or crawl and talk or hear.
Service Operations Manager - MEP/HVAC JobotService Operations Manager - MEP/HVACFairfax, VA$150,000–$220,000 / yearAs a Service Operations Manager, you will lead the day-to-day performance of a growing HVAC and Plumbing Service division, overseeing Field Teams, operational processes, customer relationships, and overall business performance across Commercial, Multifamily, and Residential service operations. 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.
Director of Sales – Data Center Services TeleWorld SolutionsDirector of Sales – Data Center ServicesChantilly, VAFull timeWith the experience of hundreds of thousands of successful implementations, including macro, DAS, Small Cells, and Wi-Fi, the world’s leading network operators and OEMs trust our knowledge and experience to plan, perform, troubleshoot, and implement an array of technologies and solutions. TeleWorld Solutions (TWS), a Samsung company , is a premier telecommunications and technology services firm offering end-to-end engineering, deployment, consulting, and staffing solutions to wireless operators, OEMs, system integrators, and hyperscale customers across North America.
NewClient Services Coordinator Vaco LLCClient Services CoordinatorWashington, DC$22–$28Determining 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. Determining compensation for this role (and others) at Vaco/Highspring depends upon a wide array of factors including but not limited to the individual’s skill sets, experience and training, licensure and certifications, office location and other geographic considerations, as well as other business and organizational needs.
NewProperty Adjuster Specialist - Field USAAProperty Adjuster Specialist - FieldWashington, DCRemote$69,920–$133,620 / yearProactively manages assigned claims caseload comprised of complex damages that require commensurate knowledge and understanding of claims coverage including potential legal liability. 2 years of relevant property claims adjusting experience of moderate complexity losses that includes writing estimates, involving dwelling and structural damages.
BAS Service Technician - Delta Controls JobotBAS Service Technician - Delta ControlsFairfax, VA$40–$50 / 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. About the Role: We are seeking a skilled and motivated Building Automation Service Technician to support service, maintenance, troubleshooting, and commissioning of building automation systems across commercial and mission-critical facilities in Northern Virginia.
NewSenior Manager, Economic Services - Program Evaluation KPMGSenior Manager, Economic Services - Program EvaluationMcLean, VAThese include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness, and safeguard business operations and company reputation. Qualifications: Minimum eight years of experience in an audit, tax, and/or advisory firm, or professional services firm, coupled with experience with public sector agencies and corporations requiring analytical support in areas, such as program evaluation.
Sr. Product Engineer – Web Services EsriSr. Product Engineer – Web ServicesVienna, VA$93,600–$159,328 / yearExperience working with ArcGIS applications and technologies (such as ArcGIS Hub, ArcGIS Map Viewer, ArcGIS REST APIs, ArcGIS API for Python, ArcGIS Maps SDKs). You will act as a service owner and trusted decision‑maker, shaping priorities, balancing tradeoffs, and ensuring our web services remain reliable, scalable, and valuable to customers over time.
NewData Center Project Manager, DCC Communities Amazon Data Services, Inc.Data Center Project Manager, DCC CommunitiesSterling, VAWe support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have continual access to the innovation they rely on. We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.
Director of Inpatient Clinical & Social Services Signet HealthDirector of Inpatient Clinical & Social ServicesWashington DC, DCOur inpatient services, education and research programs, outpatient care and community outreach initiatives are all aimed at meeting today’s health care needs—and at leading the way to meet the future health needs of the nation. Lead, mentor, and evaluate a multidisciplinary team of healthcare professionals, including the intake team, unit social workers, discharge planners, substance abuse counselors and rec/art/music therapist.
NewData Center Category Manager, Data Center Sourcing & Procurement Amazon Data Services, Inc.Data Center Category Manager, Data Center Sourcing & ProcurementArlington, VATo be successful in this role you will be highly analytical; think strategically and globally; exhibit curiosity and learning drive; have a sense of urgency to meet customer timelines, succeed in a fast-paced environment; and have a high level of customer focus and business judgement. We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.
NewData Center Controls Engineer, Data Center Capacity Delivery - Controls, DCC Communities Amazon Data Services, Inc.Data Center Controls Engineer, Data Center Capacity Delivery - Controls, DCC CommunitiesPrince William County, VAAWS Data centers have multiple components such as generators, uninterruptable power sources, diesel generators, electrical switchgear, power distribution units, variable frequency drives, automatic/static transfer switches, chillers [air-cooled and water-cooled], pumps, cooling towers, heat exchangers, CRAHs, air economizers, etc. • Frequently visit (locally) assigned in-operation data centers to troubleshoot, meet customers, supervise vendor’s work to ensure compliance with the scope, design, SOO and applicable local codes.
NewConstruction Cost Engineer, AMER Cost Control Amazon Data Services, Inc.Construction Cost Engineer, AMER Cost ControlHerndon, VAThe AWS AMER Cost Control team is seeking a passionate and motivated construction cost engineer to support a portfolio of Data Center Construction projects in North and South America. We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.
NewSr. Energy Strategy Manager, AWS Energy Team Amazon Data Services, Inc.Sr. Energy Strategy Manager, AWS Energy TeamArlington, VAWithin the overarching strategy, this individual must be resilient in exploring and discovering new supply opportunities (that delivery both near term capacity with an accelerated path to net-zero carbon supply), ultimately converting them into tactically sound and executable energy projects while working to reduce energy capital and operating expenses. Externally, this role takes ownership of managing utility interactions, coordinating efforts between real estate, engineering and planning teams in site evaluation, project engineering, scheduling and budgeting, including influencing and contracting with the utility, EPC and/or Owner’s Engineer to meet AWS’ needs.
NewSr. Technical Infrastructure Program Manager, Infra Capacity Delivery, Infra Capacity Delivery Amazon Data Services, Inc.Sr. Technical Infrastructure Program Manager, Infra Capacity Delivery, Infra Capacity DeliveryHerndon, VAAlong the way, you will use your judgment, negotiation skills, ability to influence without authority, analytical talent, technical aptitude, and leadership to collaborate with a diverse set of stakeholders across multiple time zones, manage capital budgets, eliminate non-value-add activity, design solutions, remove blockers, and find creative ways to accelerate project delivery. Being able to stand up cross-functional teams, establish trust with a variety of stakeholders across multiple time zones, manage capital budgets, eliminate non-value-add activity, design solutions, remove blockers, and find creative ways to accelerate project delivery is a must.
NewData Center Category Manager, AWS Data Center Sourcing & Procurement Amazon Data Services, Inc.Data Center Category Manager, AWS Data Center Sourcing & ProcurementArlington, VATo be successful in this role you will be highly analytical; think strategically and globally; exhibit curiosity and learning drive; have a sense of urgency to meet customer timelines, succeed in a fast-paced environment; and have a high level of customer focus and business judgement. As a Procurement Category Manager, you will create and implement sourcing strategies within construction services space and collaborate with internal business partners and suppliers to drive efficiencies, reduce risks, and costs for Amazon.
NewPrincipal, PJM Grid Integration Strategy, AWS East Energy and Water Team Amazon Data Services, Inc.Principal, PJM Grid Integration Strategy, AWS East Energy and Water TeamArlington, VAThis role combines commercial expertise, technical knowledge, and policy leadership to accelerate data center infrastructure deployment in evolving power markets. Rather than simply monitoring regulatory changes, you will proactively position AWS to influence policy development through technical forums and establish collaborative partnerships that support infrastructure growth.
NewPharmaceutical Field Sales Representative Inizio EngagePharmaceutical Field Sales RepresentativeArlington, VA$60,000–$90,000Our passionate, global workforce augments local expertise and diverse mix of skills with data, science, and technology to deliver bespoke engagement solutions that help clients reimagine how they engage with their patients, payers, people, and providers to improve treatment outcomes. As part of our commitment to a fair and equitable hiring process, candidates are expected to complete all interview activities without the use of artificial intelligence tools or external assistance unless such assistance is authorized in advance by Inizio Engage or otherwise required in accordance with applicable law.
NewSenior Data Scientist JobotSenior Data ScientistArlington, VA$130,000–$170,000 / 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 role will partner cross-functionally with business and technical teams to build scalable data solutions, translate complex insights, and help shape AI-driven strategy.
Nurse Case Manager (RN)-Field & Remote-{171308} A-Line Staffing SolutionsNurse Case Manager (RN)-Field & Remote-{171308}Herndon, VARemote$44.14 / hourFull timep>We’re hiring a Nurse Case Manager (RN) to support members through clinical case management, using assessment tools and data review to identify needs and eligibility, coordinate services, and drive optimal health outcomes. Must reside in/near: Sterling, Reston, Chantilly, Oakton, Herndon (VA).
ELECTRIC POWER GENERATION (EPG) FIELD TECHNICIAN Carter MachineryELECTRIC POWER GENERATION (EPG) FIELD TECHNICIANElkridge, MD$35.32–$50.91 / hourMinimum three years’ experience diagnosing, troubleshooting, and repairing complex issues and performing heavy electrical repairs to electrical generator systems and related equipment. Regularly required to stand, walk; use hands to finger, handle, or feel; reach with hands and arms; climb or balance; stoop, kneel, crouch, or crawl and talk or hear.
Director, Field Sales Engineering SamsaraDirector, Field Sales EngineeringWashington DC, DCRemoteYour team will play a critical role in translating early-stage product capabilities into clear, differentiated customer outcomes, influencing product direction through structured field feedback, and building repeatable technical sales plays that enable broader field adoption. In this role, you will partner closely with Sales, Product, Engineering, and Product Marketing to accelerate adoption of Samsara’s newest innovations and ensure we deliver exceptional technical value to customers — from early-stage introduction through scaled deployment.
Field Diesel Mechanic United RentalsField Diesel MechanicManassas, VA$32.65–$48.95 / hourAs a Field Diesel Mechanic (Service Tech IV - Field Service), you'll use your skills to perform maintenance and repairs of complex equipment with limited or no supervision in a highly skilled, safe, and professional manner. Maintenance and repair of complex mechanical, electrical, hydraulic, and diesel systems on a variety of rental and customer equipment and tools while using a high degree of independent judgment.
Field Diesel Mechanic - CES United RentalsField Diesel Mechanic - CESManassas, VA$29.80–$44.65 / hourAs a Field Diesel Mechanic - Customer Equipment Solutions (Service Tech III - Field Service - CES), you'll use your skills to perform maintenance and repairs of complex equipment on customer owned equipment with limited or no supervision in a highly skilled, safe, and professional manner. Safe maintenance and repair of complex mechanical, electrical, hydraulic, and diesel systems on a variety of customer equipment and tools while using a high degree of independent judgment.
Field Diesel Mechanic- CES United RentalsField Diesel Mechanic- CESHerndon, VA$29.80–$44.65 / hourAs a Field Diesel Mechanic - Customer Equipment Solutions (Service Tech III - Field Service - CES), you'll use your skills to perform maintenance and repairs of complex equipment on customer owned equipment with limited or no supervision in a highly skilled, safe, and professional manner. Safe maintenance and repair of complex mechanical, electrical, hydraulic, and diesel systems on a variety of customer equipment and tools while using a high degree of independent judgment.
System Engineer JobotSystem EngineerAlexandria, VA$95,000–$110,000 / 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 are a leading provider of intelligent transportation and mobility solutions, delivering innovative software, systems, and services that help organizations manage complex transportation infrastructure more efficiently, safely, and sustainably.
NewSr Project Accountant JobotSr Project AccountantArbutus, MD$95,000–$105,000 / 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. The ideal candidate is someone who can operate both strategically and tactically — capable of handling day-to-day accounting responsibilities while also helping improve systems, processes, and financial visibility across the organization.
Senior Oracle Apex Developer Savantage SolutionsSenior Oracle Apex DeveloperRockville, MDRemote$75,000–$110,000 / yearp>Savantage Solutions is seeking a Oracle APEX Developer to join our core engineering team supporting Altimate, a proprietary Federal Financial Management System deployed for federal agency clients. Factors considered when extending an offer include but are not limited to, job responsibilities, education, experience, knowledge, skills, certifications, seniority, performance, and alignment with market data.
NewConstruction Estimator - Multifamily Plumbing JobotConstruction Estimator - Multifamily PlumbingManassas, VA$95,000–$125,000 / 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. You will collaborate with Preconstruction, Project Management, and Operations Teams to support successful bids, identify project risks, and help drive profitable project execution.
Project Manager JobotProject ManagerBowie, MD$100,000–$150,000 / yearA nationally recognized construction services organization with a strong local-market operating model, focused on building regional teams that support employee growth, community involvement, and long-term client relationships. 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.
ELECTRIC POWER GENERATION (EPG) FIELD TECHNICIAN Carter Machinery Company, IncELECTRIC POWER GENERATION (EPG) FIELD TECHNICIANManassas, VA$35.32–$50.91 / hourMinimum three years' experience diagnosing, troubleshooting, and repairing complex issues and performing heavy electrical repairs to electrical generator systems and related equipment. Regularly required to stand, walk; use hands to finger, handle, or feel; reach with hands and arms; climb or balance; stoop, kneel, crouch, or crawl and talk or hear.
Revenue Manager Town of ViennaRevenue ManagerVienna, VA$96,511–$155,383 / yearReads journals, manuals and professional publications; speaks informally to groups of co-workers, staff in other organizational agencies, general public, people in other organizations and presents training; composes original reports, training and other written materials, using proper language, punctuation, grammar and style. Uses mathematics involving the practical application of fractions, percentages, ratios and proportions; or measurements, logarithmic, or geometric construction; may use algebraic solutions of equations and inequalities; descriptive statistics; deductive geometry, plane and solid, and rectangular coordinates; mathematical and classifications or schemes.
ELECTRIC POWER GENERATION (EPG) SERVICE SUPERVISOR Carter MachineryELECTRIC POWER GENERATION (EPG) SERVICE SUPERVISORElkridge, MD$79,000–$101,000 / yearThe EPG Field Service Supervisor is responsible for serving as a team leader, ensuring the successful operation of the department and meeting customers' needs at the highest level. Whether you're turning a wrench, managing operations, or supporting customers, you play a vital role in powering industries that moves the world forward.
NewLead Tutoring Program Coordinator - Part Time COMMUNITY SERVICES FOUNDATIONLead Tutoring Program Coordinator - Part TimeWASHINGTON, DC$20–$22 / hourThis position works closely with the CSF program team, residents, and community partners to ensure the delivery of high-quality programs, compliance with organizational and grant requirements, and the smooth operation of the community center. Key Responsibilities: Works under the direct supervision of the Program Director/Senior Program Specialist to coordinate programming under CSF’s youth development pillar.
MARINE FIELD TECHNICIAN Carter Machinery Company, IncMARINE FIELD TECHNICIANElkridge, MD$33.22–$49.94 / hourThe Marine Field Technician is responsible for diagnosing, troubleshooting and performing intermediate level mechanical and electrical repairs and complete overhauls on marine engines and propulsion systems. Minimum two years' experience diagnosing, troubleshooting, and repairing intermediate level mechanical and electrical DOC/DPF/SCR with marine engines and equipment control systems.
HVAC/R Service Technician CoolSysHVAC/R Service TechnicianCatonsville, MD$28–$46Responsibilities: ESSENTIAL DUTIES AND RESPONSIBILITIES. · Provides expert service to the customer base by repairing and overhauling equipment, such as compressors, water pumps, air handlers, electrical and mechanical control devices in a safe, efficient and timely manner that exceeds the customer’s expectations. · Provides expert repair work on refrigeration, heating and ventilation equipment, such as air conditioning units, evaporative condensers, ice machine equipment, water pumps, gas furnaces, compressors and electric motors in a safe and timely manner.
NewData Center Procurement Manager, Data Center Sourcing & Procurement Amazon Data Services, Inc.Data Center Procurement Manager, Data Center Sourcing & ProcurementHerndon, VATo be successful in this role you will be highly analytical; think strategically and globally; exhibit curiosity and learning drive; have a sense of urgency to meet customer timelines, succeed in a fast-paced environment; and have a high level of customer focus and business judgement. We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.
NewRegistered Nurse Case Manager - Field in Annandale, Springfield and Surrounding areas, VA CVS HealthRegistered Nurse Case Manager - Field in Annandale, Springfield and Surrounding areas, VASpringfield, VA$60,522–$129,615As a Nurse Case Manager, you will play a critical role in improving the health and well-being of members by coordinating care, removing barriers, and supporting better outcomes. Our teams reflect the customers, patients, members and communities we serve and we are committed to fostering a workplace where every colleague feels valued and that they belong.
NewElectronic Security Service Technician Active Security Consulting LLCElectronic Security Service TechnicianSterling, VACustomer Site Ownership: Serve as the primary service technician for designated client sites, maintaining regular scheduled on-site service hours and ensuring systems remain operational, compliant, and properly maintained. Requirements: Responsibilities : System Maintenance & Service Support: Perform advanced diagnostics, repairs, and preventive maintenance on integrated security systems including access control, video surveillance, intrusion detection, and supporting infrastructure to ensure reliable system performance.