NewTooling Engineer ComTec Information SystemsTooling EngineerPeachtree City, GA$80,000–$90,000 / yearFull timeTo ensure success in this role, you should possess strong knowledge of technical drawings, experience with 2D/3D CAD software, and proficiency in MS Office applications (Word, Excel, Outlook, PowerPoint). As a Tooling Engineer, you will be responsible for the maintenance, repair, and optimization of molds and their associated peripherals (e.g., hot runners, ejector rods, switches) used in the injection molding process.
NewQuality Engineer – Data Center Operations & Infrastructure Insight GlobalQuality Engineer – Data Center Operations & InfrastructureGA$50–$70 / hourContractorFull timeThe successful candidate will partner closely with Operations, Engineering, Supply Chain, and Inventory teams to develop scalable quality processes, drive root cause investigations, manage hardware quality issues, and establish metrics that improve overall performance and reliability. This is a highly visible, hands-on role focused on building and scaling operational quality programs that improve hardware reliability, process consistency, and operational excellence across multiple sites.
Commissioning Engineer, AWS Data Center Commissioning Amazon Data Services, Inc.Commissioning Engineer, AWS Data Center CommissioningAtlanta, GAThis team of veteran professional Electrical Engineers, Mechanical Engineers, Controls Engineers, Architectural Engineers, Project Managers, Operators and seasoned Amazonians are uniquely positioned to provide deeply detailed engineering and operational review and testing of equipment designs, operational functionality and construction practices. CxEs review design documents, lead Factory Witness Testing (FWT), and manage third-party commissioning vendors in the performance of onsite pre-functional, functional, and integrated systems testing.
NewSenior Electrical Engineer [Hybrid] JobotSenior Electrical Engineer [Hybrid]Atlanta, GA$90,000–$120,000 / 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 is an exciting opportunity for an experienced professional to contribute to a wide variety of high-profile projects and to work with a team of dedicated professionals who are passionate about their work.
NewElectrical Engineer JobotElectrical EngineerAtlanta, GA$120,000–$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. We bring this deep expertise to every project, whether it's a building retrofit or new construction, a modest facility or a complex structure exceeding 500,000 square feet.
NewSenior Electrical Engineer JobotSenior Electrical EngineerSavannah, GA$165,000–$250,000 / 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. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.
Consulting Systems Engineer Primetals TechnologiesConsulting Systems EngineerAlpharetta, GAOur Consulting Systems Engineers perform engineering, specification, design, testing and commissioning of Programmable Logic Controllers (PLCs), Distributed Control Systems (DCSs) and Human Machine Interface (HMI) based automation control systems that integrate hardware and software for large industrial project applications, specifically in the metals industry. Consulting Systems Engineers also provide technical solutions, process know-how, customer training, and service support on large industrial processes, including electrical, mechanical, and metallurgical processes, for rolling and processing of metals for industrial customers, domestic and international.
Sr Systems Engineer Primetals TechnologiesSr Systems EngineerAlpharetta, GAOur manufacturing teams build products our customers depend on for producing steel plants, and our service teams are ensuring that our customers are operating at the highest level. Primetals Technologies USA, LLC is a leading partner for engineering, plant construction and lifecycle services in the metal industry.
Software Engineer (C# .NET Framework/SQL Server) SarnovaSoftware Engineer (C# .NET Framework/SQL Server)Atlanta, GAThe position is well suited for an engineer who enjoys working with complex systems, troubleshooting production issues, and contributing to the continued evolution and sustainability of the platform. This role focuses on supporting, enhancing, and progressively modernizing enterprise and legacy applications using C#, NET Framework, and SQL Server.
Staff Machine Learning Engineer SamsaraStaff Machine Learning EngineerAtlanta, GARemoteYou believe customers are more than a number: Samsara engineers enjoy a rare closeness to the end user and you will have the opportunity to participate in customer interviews, collaborate with customer success and product managers, and use metrics to ensure our work is translating into better customer outcomes. • You want to impact the industries that run our world: The software, firmware, and hardware you build will result in real-world impact—helping to keep the lights on, get food into grocery stores, and most importantly, ensure workers return home safely.
Chief Engineer LeidosChief EngineerMacon, GA$154,050–$278,475If 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. Minimum twenty (20) years’ experience in systems engineering or similar position working system design with cross-discipline teams in software, mechanical and electrical specification, design and test.
Senior Software Engineer - Route Execution SamsaraSenior Software Engineer - Route ExecutionAtlanta, GARemoteYou believe customers are more than a number: Samsara engineers enjoy a rare closeness to the end user and you will have the opportunity to participate in customer interviews, collaborate with customer success and product managers, and use metrics to ensure our work is translating into better customer outcomes. • You want to impact the industries that run our world: The software, firmware, and hardware you build will result in real-world impact—helping to keep the lights on, get food into grocery stores, and most importantly, ensure workers return home safely.
Senior Software Engineer II - AI Tooling and Interfaces DoubleVerifySenior Software Engineer II - AI Tooling and InterfacesAtlanta, GA$107,000–$193,000 / yearSoftware Engineer II in AI Tooling and Interfaces, youll design and build systems purpose-built for AI agents, automations, and decisioning engines that drive real outcomes for our clients and internal teams. If you enjoy turning high-volume data into clean, powerful systems—and you want your work to drive real business outcomes rather than just dashboards—this role puts you right at the center of the action.
Senior Data Engineer - Agentic AI Engineering BoomiSenior Data Engineer - Agentic AI EngineeringAtlanta, GAThis role focuses on building and operating scalable, high-quality data infrastructure that powers agentic AI systems, including LLM-based agents, multi-agent workflows, and tool-using AI systems. • Architect and build scalable, secure, and observable data infrastructure to power LLM-based agents, multi-agent systems, and tool-using AI workflows.
Machine Learning Lead Engineer Cox AutomotiveMachine Learning Lead EngineerCandler-McAfee, GA$134,900–$224,900The Lead builds and scales machine learning models across the company, from design through production, and brings deep skill in one area such as deep learning, generative AI, computer vision, optimization, or causal machine learning. Understanding of agent frameworks (AWS AgentSquad, AWS Strands, LangChain, agent patterns), from basic setup to custom enterprise design.
Service Engineer AxelonService EngineerDalton, GAProvide on-site support for server and data center systems, ensuring rapid issue resolution and minimal downtime. Experience supporting servers or data center hardware in a field, enterprise, or customer-facing environment.
RF Hardware Design Engineer ATX Networks CareersRF Hardware Design EngineerDuluth, GeorgiaReporting to the VP of Engineering, the RF Hardware Engineer will work with the ATX Product Development teams to develop, implement, and support detailed designs for the HFC products as ATX expands it product portfolio in the HFC space. We are seeking an experienced RF Design Engineer to join our broadband access hardware team, responsible for the design and development of RF amplifiers and modules used in Hybrid Fiber-Coax (HFC) cable plant infrastructure.
NewSenior Hardware Design Engineer Ciena Government SolutionsSenior Hardware Design EngineerAtlanta, GeorgiaImplementation history as a design lead of high layer count circuit packs and possess a deep understanding of technology related to CPU’s, Networking devices, FPGA, timing devices, DDR, PCIe, FLASH memory. Pay ranges at Ciena are designed to accommodate variations in knowledge, skills, experience, market conditions, and locations, reflecting our diverse products, industries, and lines of business.
RF Hardware Design Engineer ATX Networks Corp.RF Hardware Design EngineerDuluth, GAReporting to the VP of Engineering, the RF Hardware Engineer will work with the ATX Product Development teams to develop, implement, and support detailed designs for the HFC products as ATX expands it product portfolio in the HFC space. We are seeking an experienced RF Design Engineer to join our broadband access hardware team, responsible for the design and development of RF amplifiers and modules used in Hybrid Fiber-Coax (HFC) cable plant infrastructure.
Lead I&C (Instrumentation & Controls) Hardware Engineer GE VernovaLead I&C (Instrumentation & Controls) Hardware EngineerAtlanta, GeorgiaGE 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. The Services Instrumentation and Controls hardware engineer is responsible for designing and manufacturing of Printed Circuit Boards (PCB) equipment that control safety critical functions for the BWRX-300 Small Module Reactor.
Power & Hardware Design Engineer, One MHS - Electrical and Control Engineering, Arch and Design Amazon.com IncPower & Hardware Design Engineer, One MHS - Electrical and Control Engineering, Arch and DesignAtlanta, GAYou will work closely with WWDE, Operations Engineering, strategic suppliers, and cross-functional teams to deliver robust power and hardware solutions while considering long-term system performance, policies, and maintenance programs. The ideal candidate will have a proven track record in power system design, power distribution, controls engineering, and hardware development for complex material handling systems including tote/parcel conveyance and sortation.
Hardware Design Engineer, One MHS - Electrical and Control Engineering, Arch and Design Amazon.com IncHardware Design Engineer, One MHS - Electrical and Control Engineering, Arch and DesignAtlanta, GAYou will work closely with WWDE, Operations Engineering, strategic suppliers, and cross-functional teams to deliver robust power and hardware solutions while considering long-term system performance, policies, and maintenance programs. The ideal candidate will have a proven track record in power system design, power distribution, controls engineering, and hardware development for complex material handling systems including tote/parcel conveyance and sortation.
NewHardware Design Engineer Insight GlobalHardware Design EngineerAlpharetta, GAQualificationsBachelor's, or Master's, degree in Electrical Engineering, with 10+ years of hardware design experienceImplementation history as a design lead of high layer count circuit packs and possess a deep understanding of technology related to CPU's, Networking devices, FPGA, timing devices, DDR, PCIe, FLASH memory. Working closely with cross‑functional teams—including systems architecture, mechanical, software, FPGA, and operations—the Hardware Design Engineer will help deliver high‑quality, high‑performance hardware solutions that meet rigorous reliability, quality, and customer requirements.
Validation and Verification (Hardware)- Engineer / Technician Capgemini SEValidation and Verification (Hardware)- Engineer / TechnicianAtlanta, GA$68,911–$161,544 / yearIt delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem. Important Notice: Compensation (including bonuses, commissions, or other forms of incentive pay) is not considered earned, vested, or payable until it becomes due under the terms of applicable plans or agreements and is subject to Capgemini's discretion, consistent with applicable laws.
Lead E&I Hardware Engineer R.E. MasonLead E&I Hardware EngineerAtlanta, GAThe ideal candidate will possess strong technical expertise in electrical and control system design, proficiency in AutoCAD, and the ability to manage multiple stakeholders including vendors, design teams, and fabrication partners. Mason is a 100% employee-owned company that offers a comprehensive, industry leading benefits package to all eligible Associates: Participation in the Employee Stock Ownership Program (ESOP).
Robotics Hardware Integration Engineer Slip RoboticsRobotics Hardware Integration EngineerAtlanta, GAThis means sensor drivers, motor controllers, embedded communication buses, power management interfaces, and the low-level software that makes the physical robot work. Slip Robotics is transforming freight logistics with autonomous robotic systems that load and unload trailers faster, safer, and more reliably than traditional methods.
NewPower Generation Controls Hardware Engineer Siemens Energy AGPower Generation Controls Hardware EngineerAlpharetta, GAWith ~100,000 dedicated employees in more than 90 countries, we develop the energy systems of the future, ensuring that the growing energy demand of the global community is met reliably and sustainably. In this role, you will function as a Hardware (HW) Engineer providing hardware engineering design using Siemens Energy Omnivise-T3000 for Power Generation Equipment and digitalization.
Senior Hardware Design Engineer Ciena CorpSenior Hardware Design EngineerAlpharetta, GA$101,800–$162,600 / yearImplementation history as a design lead of high layer count circuit packs and possess a deep understanding of technology related to CPU's, Networking devices, FPGA, timing devices, DDR, PCIe, FLASH memory. How You Will Contribute: Reporting to the Senior Manager, Hardware Engineering, you will be an integral part of a strong and vibrant hardware team that performs design, development, and validation of sophisticated printed circuit boards for Ciena's current and next-generation platforms.
Hardware Engineer Actalent IncHardware EngineerWarner Robins, GA$150,000–$165,000 / yearBachelor's degree in electrical engineering, computer engineering or related field and a minimum of 5 years' experience with skillsets in these areas: research, design, develop, and test systems and components such as circuit boards and product level integration and testing OR equivalent experience Experience in Circuit design and simulation (Analog and Digital) Experience with schematic capture tools preferred OrCAD/Cadence. Working knowledge with video, avionic discrete interfaces, 1553, ARINC, and one or more fiber technologies Experience with high speed digital signal integrity and board layout constraints Working knowledge of DisplayPort, SDI and digital control interfaces such as 10/100/1000 Ethernet, SPI, I2C or RS-232.
Product Security Engineer/Penetration Tester/ Hardware Engineer Pyramid, IncProduct Security Engineer/Penetration Tester/ Hardware EngineerDuluth, GA$60–$70 / hourFull timeStrong experience with: Hardware Penetration Testing Firmware Penetration Testing RF Security Testing (Wi-Fi & Bluetooth) Secure Development Life Cycle (SDLC) Threat Modeling Software Composition Analysis (SCA) Static Application Security Testing (SAST) Dynamic Application Security Testing (DAST) Binary Analysis Experience identifying and validating security vulnerabilities across embedded and IoT environments. Hands-on experience testing: Web Applications Mobile Applications Thick Client Applications APIs and Web Services Cloud Platforms Containers Embedded Hardware Experience with reverse engineering, firmware analysis, debuggers, and dynamic analysis tools.
Senior Hardware Engineer Adtran Holdings IncSenior Hardware EngineerAtlanta, GAThe Senior Hardware Engineer will be a member of a team responsible for designing Coherent Pluggable Optical Transceiver modules for metro, core and data center applications. Once you've had a chance to explore our current open positions, apply to the ones you feel suit you best and keep track of both your progress in the selection process, and new postings that might interest you!
Hardware Engineer-III Capgemini SEHardware Engineer-IIIAtlanta, GA$73,150–$174,000 / yearImportant Notice: Compensation (including bonuses, commissions, or other forms of incentive pay) is not considered earned, vested, or payable until it becomes due under the terms of applicable plans or agreements and is subject to Capgemini's discretion, consistent with applicable laws. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.
Senior Hardware Test Engineer Slip RoboticsSenior Hardware Test EngineerNorcross, GASlip Robotics is a B2B Robotics-as-a-Service company deploying autonomous loading and unloading robots — SlipBots and SlipLifts — at warehouse and fulfillment sites across North America. Create and oversee tests for the manufacturing team, developing test setups that facilitate efficient and effective production processes.
Principal Engineer, Hardware AeroVect Technologies IncPrincipal Engineer, HardwareAtlanta, GAOwning the integration points where mechanical, electrical, and electromechanical subsystems meet - sensor mounts, compute enclosures, wiring harnesses, actuation mechanisms, power distribution - and making sure those interfaces hold up in the field. Prior experience as the most senior individual contributor in a hardware organization - setting direction, mentoring staff engineers, and partnering with engineering leadership without managing a team yourself.
Founding Robotics Engineer (Hardware) TRC Talent SolutionsFounding Robotics Engineer (Hardware)Atlanta, GA$80,000–$120,000 / yearBonus Multipliers: PCB design (schematic capture, layout), complex hardware manufacturing experience, and embedded software exposure (Raspberry Pi/Arduino). They do not need a theoretical researcher; they need a hands-on mechanical and hardware builder to design, prototype, and manufacture physical platforms at scale.
Hardware-In-the-Loop (HIL) Validation Engineer LHP Engineering SolutionsHardware-In-the-Loop (HIL) Validation EngineerKennesaw, GALHP Engineering Solutions is a Functional Safety global leader committed to creating safe transportation with developing technologies such as Electric Vehicles, Advance Driver Assistance Systems. The Software Test Engineer will support the Software Validation of internally developed embedded software application as well as its various permutations required to meet our customer unique applications.
Senior Hardware Engineer Adtran NetworksSenior Hardware EngineerAtlanta, GeorgiaThe Senior Hardware Engineer will be a member of a team responsible for designing Coherent Pluggable Optical Transceiver modules for metro, core and data center applications. Once you've had a chance to explore our current open positions, apply to the ones you feel suit you best and keep track of both your progress in the selection process, and new postings that might interest you!
NewHardware Engineer II Akamai Technologies, Inc.Hardware Engineer IIAtlanta, GA$95,000–$171,000 / yearFor US based candidates only - the base salary for this position ranges from $95,000 - $171,000/year; a candidate’s salary is determined by various factors including, but not limited to, relevant work experience, skills, certifications and location. We provide the world's most distributed platform from Cloud to Edge to help the giants of the digital world work faster and stay more secure, making the internet a better experience for everyone.
Product Security Engineer/Penetration Tester/ Hardware Engineer Pyramid Consulting, IncProduct Security Engineer/Penetration Tester/ Hardware EngineerDuluth, GA$60–$70 / 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. Collaborate with engineering and product teams to integrate security throughout the Secure Development Lifecycle (SDLC).
Senior Manufacturing Test Engineer, Server Hardware Google LLCSenior Manufacturing Test Engineer, Server HardwareAtlanta, GACareersCareersSkip navigation links home home Home work_outline Jobs Jobs noogler_hat noogler_hat Students Students googlegoogle How we work How we work handyman handyman How we hire How we hire person_outline person_outline Your career Your career help_outline Help link feedback Send feedback more_vert Help Send Feedback Sign in. Experience with test station bring-up calibration setup for production test purposes working with CM partners or contract manufacturing on Original Design Manufacturer ODM Original Equipment Manufacturer OEM or Joint Design Manufacturer JDM projects.
NewBioinstrumentation Hardware Engineer for MEA Systems Axion BioSystemsBioinstrumentation Hardware Engineer for MEA SystemsAtlanta, GAThis role involves collaboration with biologists and engineers to enhance product capabilities and support the entire product lifecycle, from concept to manufacturing. A leading biotechnology company headquartered in Atlanta is seeking a talented Hardware Engineer to design and develop innovative biosensing systems.
Senior Hardware Field Engineer AeroVect Technologies IncSenior Hardware Field EngineerAtlanta, GAThis is a highly autonomous role suited for an engineer who thrives in a fast-paced field environment, is comfortable owning problems end-to-end and can context-switch between mechanical repair, electrical debug and cross-functional coordination in a single day. In this role, you will be the primary hands-on technical owner at our ATL deployment site - diagnosing and resolving hardware issues, executing maintenance and keeping a fleet of autonomous ground vehicles running safely and reliably in a live airport environment.
NewIndigo Hardware Support Engineer Kforce Inc.Indigo Hardware Support EngineerAlpharetta, GA$25–$28Remote resolve technical issues from end user's contacts and proactive notification systems (Predictive Press Care), which includes product features, specifications, parts info and compatibility, maintenance routines, educational programs and technical aspects in general. The candidate should maintain knowledge of leading-edge technologies and actively contribute to technical knowledge portfolio by providing information ranging from technical knowledge to methodologies based on experience gained from customer engagement.
Computer Hardware Engineer Hop Global ServiceComputer Hardware EngineerSoperton, GeorgiaMonitor mining operations to ensure compliance with regulatory requirements and best practices • Ensure proper cooling and ventilation systems are in place to prevent hardware damage or failure • Maintain accurate records of mining performance and profitability • Assist with the installation and setup of new mining hardware and software • Maintain a clean and organized work environment Requirements: • Prefer Bachelor’s degree in computer science or related field • At least 2 years of experience in a IT role, preferably in a IT troubleshooting environment • Knowledge of computer hardware, software, and best practices • Strong problem-solving skills and the ability to work independently • Excellent communication and interpersonal skills • Ability to work flexible hours, including nights and weekends • Physical ability to lift and move heavy equipment• Ability to work in a fast-paced and dynamic environment If you are passionate about Bitcoin and have a strong background in mining operations, we encourage you to apply for this exciting opportunity Compensation: $25.00 per hour . Responsibilities: • Perform regular inspections and maintenance on mining hardware to ensure optimal performance • Monitor and troubleshoot technical issues with mining hardware and software • Maintain and update mining software to ensure optimal efficiency and security • Work with other members of the team to develop and implement strategies for minimizing downtime.
NewHardware Operations Engineer - Baseball Hawk-Eye Innovations LimitedHardware Operations Engineer - BaseballAtlanta, GAThis role supports onsite installation work, onsite maintenance and repair, remote hardware monitoring, first-line troubleshooting, hardware QA checks, kit preparation, spares/RMA coordination, and handover support across Hawk-Eye and KinaTrax Baseball systems. Engineers build technical depth through a blend of remote diagnostics, onsite troubleshooting, installation support, preventative maintenance, kit builds, and shadowing Leads on complex hardware work.
NewHardware Operations Engineer – Baseball HEIHardware Operations Engineer – BaseballAtlanta, GeorgiaThis role supports onsite installation work, onsite maintenance and repair, remote hardware monitoring, first-line troubleshooting, hardware QA checks, kit preparation, spares/RMA coordination, and handover support across Hawk-Eye and KinaTrax Baseball systems. Engineers build technical depth through a blend of remote diagnostics, onsite troubleshooting, installation support, preventative maintenance, kit builds, and shadowing Leads on complex hardware work.
Senior Hardware Field Engineer AeroVectSenior Hardware Field EngineerAtlanta, GeorgiaThis is a highly autonomous role suited for an engineer who thrives in a fast-paced field environment, is comfortable owning problems end-to-end and can context-switch between mechanical repair, electrical debug and cross-functional coordination in a single day. In this role, you will be the primary hands-on technical owner at our ATL deployment site — diagnosing and resolving hardware issues, executing maintenance and keeping a fleet of autonomous ground vehicles running safely and reliably in a live airport environment.
Computer Hardware Engineer HOP GLOBAL SERVICE INCComputer Hardware EngineerSoperton, GAPhysical ability to lift and move heavy equipment• Ability to work in a fast-paced and dynamic environment . We are looking for an entry level Bitcoin Mining Operations Technician to join .
Electrical & Controls Design Hardware Engineer, One MHS - Electrical and Control Engineering, Arch and Design Amazon.com IncElectrical & Controls Design Hardware Engineer, One MHS - Electrical and Control Engineering, Arch and DesignAtlanta, GAThe ideal candidate will have a proven track record in electrical power system design, controls engineering, industrial communication protocols, and automation platforms for complex material handling systems including conveyance and sortation. We are seeking an experienced and highly motivated Electrical & Controls Engineer to serve as a technical contributor for electrical power systems and controls engineering within One MHS (One Material Handling Systems).
Hardware Installation Engineer - N/NE - Field/Travel Varian Medical Systems IncHardware Installation Engineer - N/NE - Field/TravelGAIt is Siemens Healthineers' policy to comply fully and completely with all United States export control laws and regulations, including those implemented by the Department of Commerce through the Export Administration Regulations (EAR), by the Department of State through the International Traffic in Arms Regulations (ITAR), and by the Treasury Department through the Office of Foreign Assets Control (OFAC) sanctions regulations.". What you will do: Provide highly visible customer support through the performance of on-site installation of linear accelerators and imaging systems, as well as overseeing any necessary diagnoses, troubleshooting, service, and repair of complex equipment and systems.