Mechanical Engineer - Civil JobotMechanical Engineer - CivilChicago, IL$120,000–$155,000 / 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 a unique opportunity to join a dynamic team and contribute to the design, development, and implementation of various mechanical systems in the civil engineering industry.
Senior Mechanical Engineer (Construction/HVAC) JobotSenior Mechanical Engineer (Construction/HVAC)Downers Grove, IL$95,000–$145,000 / 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. As a key member of our team, you will play a pivotal role in the design and management of various projects, ensuring the highest levels of quality and efficiency.
NewMechanical Design Engineering Supervisor, Nuclear System OneMechanical Design Engineering Supervisor, NuclearNaperville, ILRemote$125,000–$150,000 / year10+ years of progressively responsible experience in mechanical engineering, design, and analysis, preferably within the nuclear or power generation industry. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
Mechanical Commissioning Engineer JobotMechanical Commissioning EngineerChicago, IL$90,000–$120,000 / year
NewProject Manager (Mechanical Contractor) - Hybrid schedule** JobotProject Manager (Mechanical Contractor) - Hybrid schedule**Arlington Heights, IL$120,000–$150,000 / 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. As a Project Manager, you will oversee the planning, execution, and delivery of HVAC and mechanical system projects, including chillers, boilers, custom fabrication, and process piping.
NewEngineer, Mechanical or Electrical Constellation EnergyEngineer, Mechanical or ElectricalMinooka, IL$87,000–$154,000Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
Engineer, Mechanical Sr Constellation EnergyEngineer, Mechanical SrJoliet, IL$122,400–$154,000Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
NewSenior MEP Mechanical Engineer Davron LLCSenior MEP Mechanical EngineerElk Grove Village, ILAn exciting opportunity is available for an Senior MEP Mechanical Engineer in Elk Grove Village, IL with a well-established, MEP consulting engineering firm known for long-term client relationships and a strong focus on educational facility projects. HVAC ENGINEER | MECHANICAL ENGINEER | HVAC DESIGN ENGINEER | MEP ENGINEER | AUTOCAD | REVIT | K-12 FACILITIES | EDUCATIONAL FACILITIES | COMMERCIAL BUILDINGS | BUILDING AUTOMATION SYSTEMS | ENERGY CODES | PE LICENSE.
Engineer, Mechanical / Civil Structural Constellation EnergyEngineer, Mechanical / Civil StructuralYorkville, IL$92,700–$154,000Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
Estimator (Mechanical Contractor) JobotEstimator (Mechanical Contractor)Bensenville, IL$100,000–$150,000 / 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. An established, growth-oriented mechanical contractor delivering complex commercial and industrial projects is seeking an Estimator to prepare accurate, competitive bids for HVAC and process piping scopes.
NewEngineer, Sr Staff / Mechanical or I & C Constellation EnergyEngineer, Sr Staff / Mechanical or I & CHinckley, IL$151,200–$168,000Provides in-depth technical expertise to develop, manage and implement engineering activities related to plant safety, reliability, maintainability, and availability ensuring compliance to customer's needs, regulatory requirements, and corporate policies. Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department.
NewMechanical Engineer PE System OneMechanical Engineer PEWestmont, IL$100,000–$150,000 / yearPerform work with a high degree of latitude, handle complex issues, and provide leadership, coaching, or mentoring to subordinates. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
Engineer, Sr. Mechanical Constellation EnergyEngineer, Sr. MechanicalYorkville, IL$122,400–$154,000Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
Sr Mechanical Designer G&W Electric CoSr Mechanical DesignerAurora, IL$98,872–$128,577Reporting to the Manager of New Product Development, the Sr Mechanical Designer is responsible for advanced CAD architecture, concept development, and complex system layouts covering G&W Electric’s overhead and underground switchgear product lines. This role serves as a technical authority in Creo-based mechanical design, translating high-level ideas, concepts, and minimal inputs into fully realized design concepts, layouts, and CAD models.
NewSenior Mechanical BIM Engineer - Northlake, IL Powell IndustriesSenior Mechanical BIM Engineer - Northlake, ILNorthlake, ILIt is the policy of Powell Industries to promote safe working conditions for ALL employees, to make available where necessary special equipment to protect employees against specific hazards, to reduce accidents through prevention programs and to establish rules that are designed for the safety of all. • Must have solid working knowledge of the most current modeling applications software in use by Powell, including being able to create, manipulate, and coordinate Revit families, views, browser structure, sheets, schedules, filters, and similar Revit functions.
Manager Engineering Constellation EnergyManager EngineeringNewark, IL$162,000–$180,000Bachelor's degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical, or nuclear) OR related science OR License Professional Engineer OR Active/Inactive SRO License with 5 years of engineering or related experience, which shall include 1 year of nuclear power plant experience. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
Engineering, Manager Constellation EnergyEngineering, ManagerCrest Hill, IL$162,000–$180,000Bachelor's degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical, or nuclear) OR related science OR License Professional Engineer OR Active/Inactive SRO License with 5 years of engineering or related experience, which shall include 1 year of nuclear power plant experience . Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department.
NewManager Engineering, Electrical Constellation EnergyManager Engineering, ElectricalElwood, IL$162,000–$180,000Bachelor's degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical, or nuclear) OR related science OR License Professional Engineer OR Active/Inactive SRO License with 5 years of engineering or related experience, which shall include 1 year of nuclear power plant experience . Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
Senior Engineer - T&S Engineering Programs ExelonSenior Engineer - T&S Engineering ProgramsOAKBROOK TERRACE, IL$103,200–$141,900Develops studies, plans, criteria, specifications, calculations, evaluations, design documents, performance assessments, integrated systems analysis, cost estimates, budgets, associated with the planning, design, licensing, construction, commissioning, operation, and maintenance of Exelon's electric generation, transmission, distribution, gas and telecommunication facilities/systems. We are a Fortune 200 company, 20,000 colleagues strong serving more than 10.7 million customers at six energy companies -- Atlantic City Electric (ACE), Baltimore Gas and Electric (BGE), Commonwealth Edison (ComEd), Delmarva Power & Light (DPL), PECO Energy Company (PECO), and Potomac Electric Power Company (Pepco).
Engineering, Sr Manager Constellation EnergyEngineering, Sr ManagerNaperville, IL$183,600–$204,000As the largest private-sector power producer in the world and the nation's largest producer of clean and reliable energy, Constellation is focused on our purpose: lighting the way to a brilliant tomorrow for all. Bachelor's degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical or Nuclear) or related science OR Active/Inactive Senior Reactor Operator (SRO) license .
NewReliability Engineer JobotReliability EngineerBedford Park, IL$95,000–$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. Decades-old metals manufacturer offering strong $$$, benefits, and great team in need of experienced Industrial Reliability Engineer to join the team!
Manufacturing Applications Engineer JobotManufacturing Applications EngineerPark Forest, IL$100,000–$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. 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.
Design Engineer (Hydraulics) JobotDesign Engineer (Hydraulics)Joliet, IL$90,000–$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. 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.
NewApplication Engineer JobotApplication EngineerPark Forest, IL$95,000–$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. This position offers a unique opportunity to work on a variety of projects, from initial concept to final implementation, and to make a significant impact on our company's success.
Valve Design Engineer JobotValve Design EngineerSchaumburg, IL$85,000–$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. Founded over six decades ago, with operations across the United States and globally, we are a manufacturing organization that develops engineered fluid power and hydraulic system solutions for demanding industrial and mobile equipment applications.
NewLead Vehicle Integration Engineer - Electrohydraulics JobotLead Vehicle Integration Engineer - ElectrohydraulicsNaperville, IL$125,000–$145,000 / 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 company fosters a collaborative environment where engineers work across disciplines to solve complex technical challenges, make an impact on high-performance products, and contribute to next-generation vehicle and equipment solutions.
Key Account Manager - Fluid Power/Hydraulics JobotKey Account Manager - Fluid Power/HydraulicsChicago, IL$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. We are a global manufacturer of highly engineered fluid power, motion control, filtration, cooling, and hydraulic systems sold into OEMs, industrial manufacturers, and specialized end markets worldwide.
Manager of Transmission Line Engineering LeidosManager of Transmission Line EngineeringChicago, ILRemote$116,350–$210,325Leidos seeks the best and the brightest, and in return, we invest in you, with an eye on your future, through career advancement, growth opportunities, and continuous improvement via mentoring, formal and informal project management training and assistance with obtaining pertinent certifications. The successful candidate will serve as a Supervisor and Engineering Lead on high voltage electric transmission line design projects of overhead and underground systems for some of the largest utilities in the country as well as regional utilities.
Commissioning Project Engineer (Data Centers) JobotCommissioning Project Engineer (Data Centers)Chicago, IL$90,000–$160,000 / yearMust be self-motivated and well versed in Data Center projects touching on large building MEP systems design, commissioning, retro-commissioning, energy modeling/analysis and construction for complex buildings. 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.
Electrical Engineer Constellation EnergyElectrical EngineerSheridan, IL$87,000–$154,000Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
Structural Engineer Constellation EnergyStructural EngineerNaperville, IL$87,000–$154,000Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department. Bachelor&rsquos degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical or Nuclear) with 5 years of nuclear experience or related engineering experience.
Engineer, Electrical Analytical Constellation EnergyEngineer, Electrical AnalyticalJoliet, IL$87,000–$154,000Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes. Bachelor&rsquos degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical or Nuclear) with 5 years of nuclear experience or related engineering experience.
Engineer, Sr. Structural/Civil Constellation EnergyEngineer, Sr. Structural/CivilJoliet, IL$122,400–$154,000Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
Engineer, Electrical Constellation EnergyEngineer, ElectricalElwood, IL$92,700–$154,000Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
NewSr Engineer Design Medline IndustriesSr Engineer DesignNorthfield, IL$101,000–$152,000 / yearFull timeThe Senior Design Engineer provides technical expertise, mentors junior engineers, and drives design excellence throughout the product development lifecycle, contributing to successful product launches and continuous improvement efforts. Guide cross-functional collaboration with product management, clinical, regulatory, and quality teams to define user needs and translate them into actionable design specifications.
NewEngineer, Strategic Constellation EnergyEngineer, StrategicJoliet, IL$87,000–$154,000Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
Engineer, In-Vessel Visual Inspection Constellation EnergyEngineer, In-Vessel Visual InspectionYorkville, IL$87,000–$154,000Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes. Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department.
NPD Project Engineer III G&W Electric CoNPD Project Engineer IIIAurora, IL$85,963–$111,783Be responsible for leading small to medium portions of the design process, completing assigned tasks, assisting other members of the team, and helping to ensure project completion in accordance with the schedule. Our continuous focus on growth and innovation means that you become part of a company that provides challenging opportunities, rewards excellence and combines your individual expertise to achieve a higher level of shared success.
Lead Transmission Line Engineer LeidosLead Transmission Line EngineerChicago, IL$92,300–$166,850Leidos seeks the best and the brightest, and in return, we invest in you, with an eye on your future, through career advancement, growth opportunities, and continuous improvement via mentoring, formal and informal project management training and assistance with obtaining pertinent certifications. The successful candidate will serve as a Lead Engineer and Technical Project Manager on high voltage electric transmission line design projects of overhead and underground systems for some of the largest utilities in the country as well as regional utilities.
Senior Transmission Line Engineer LeidosSenior Transmission Line EngineerMelrose Park, IL$73,450–$132,775If 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. We value and support the well-being and mobility of our employees with competitive benefit packages, complementary e-learning training, work-life flexibility, an exciting External Referral Program, and a diverse, inclusive, and ethical workplace.
NewPipe Stress Engineer System OnePipe Stress EngineerNaperville, ILRemoteMinimum of 2–5 years of piping/mechanical design experience with a focus on pipe stress analysis projects in nuclear facilities, oil & gas or similar systems. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
NewElectrical Engineer Neville Engineering Service, Inc.Electrical EngineerRomeoville, ILWe pursue ever more complex and exciting renovation and new construction projects to help our clients succeed while we grow in our ability to positively impact the lives of those who work, play, and learn in the buildings we design for. We are looking for a motivated Electrical Engineer who is eager to grow professionally, contribute to meaningful projects, and help design high-performance building systems.
Mechanical Engineering Manager - Healthcare Farnsworth Group IncMechanical Engineering Manager - HealthcareLisle, IL$120,000–$171,000 / yearThe Mechanical Engineering Manager - Healthcare is responsible for leading the planning, design, and delivery of mechanical systems for healthcare and complex institutional facilities, including hospitals, ambulatory surgery centers, medical office buildings, and specialized clinical spaces. This role can be entrepreneurial, combining technical leadership, project management, and people management to drive high‑quality designs, superior client service, and profitable project delivery for our healthcare portfolio.
Senior Mechanical Engineer EDN Engineering Powell Industries IncSenior Mechanical Engineer EDN EngineeringNorthlake, ILAs a manufacturer, we recruit and hire experienced and knowledgeable applicants to ensure our product is engineered, fabricated, and assembled to customer specifications! • Ability to apply product knowledge and technical skills to solve simple application problems independently with minimum supervision.
Director of Mechanical Engineering Core States GroupDirector of Mechanical EngineeringNaperville, ILSummary of Position: As the Director of Mechanical Engineering, supporting our Architecture and Engineering business unit, you are responsible for leading, coordinating and overseeing all activities, projects and personnel within the mechanical engineering discipline. Established in 1999, the company offers integrated solutions with seamless continuity, and many of the world's most notable brands count on Core States Group to deliver speed to market, cost certainty, and compelling design.
Mechanical Engineering Department Manager Orbital Engineering IncMechanical Engineering Department ManagerChicago, IL$125,000–$175,000 / yearThe position requires project and resource management experience in a consulting environment, and well-rounded expertise in heavy industrial engineering projects in the steel, manufacturing, petrochemical, chemical, mining, materials processing, and power generation industries. About Orbital: Powered by People, Driven by Solutions Since 1969, Orbital has been specializing in project development, project execution and asset management for the heavy industrial sectors and utilities.
Senior Mechanical/Fire Protection Engineer - Building Engineering Gresham, Smith and PartnersSenior Mechanical/Fire Protection Engineer - Building EngineeringChicago, ILEvaluate building plans and architectural drawings to determine appropriate life safety systems including fire suppression, fire alarm, smoke control and code analysis. United by our Core Purpose-to plan, design, and consult to create healthy and thriving communities-we deliver innovative solutions for life's essential infrastructure and institutions.
Mechanical Engineering Director, Data Centers - Remote (U.S.) AECOMMechanical Engineering Director, Data Centers - Remote (U.S.)Chicago, ILRemote$200,000–$260,000 / yearProfessional Engineer License (P.E.) is required + Direct experience supporting data center projects **Preferred Qualifications:** + Experience working with hyperscale or colocation clients + Experience managing large multi-disciplinary design teams + Experience with Design-Bid-Build and Design-Build delivery models **Additional Information** + Relocation is not available for this role. **Qualifications** **Minimum Qualifications:** + Bachelor’s degree in Mechanical Engineering plus twelve (12) years of relevant experience in mechanical design and/or mechanical engineering, with a focus on data center infrastructure, or demonstrated equivalency of experience and/or education, including 4 years of leadership experience.
Mechanical Engineering Consultant 2 (Power Uprates) - Nuclear Sargent & LundyMechanical Engineering Consultant 2 (Power Uprates) - NuclearChicago, IL$142,710–$215,440 / yearSince 1954, we’ve been a trusted leader in nuclear engineering, design, and licensing, with expertise spanning small modular reactors (SMRs), advanced reactor technology (ART), and first-of-a-kind commercial reactor restart projects. Our work supports life extensions and digital modernization of existing nuclear plants, coal-to-nuclear conversion initiatives with the Department of State, and international nuclear new-build projects.
Mechanical Engineering Consultant 2 (Power Uprates) Nuclear Sargent & Lundy LLCMechanical Engineering Consultant 2 (Power Uprates) NuclearChicago, IL$142,710–$215,440 / yearExperience and practical knowledge in one or more of the following areas: • Power Uprates (EPU/SPU/MUR) • Power Uprate pinch point assessments and/or task reports • Turbine / Generator / AVR / Exciter Refurbishments • Heat Exchanger Replacement (FWH/MSR/TFP) • Isophase Bus Duct Transformer/Switchyard NSSS Systems Licensing Application. Since 1954, we've been a trusted leader in nuclear engineering, design, and licensing, with expertise spanning small modular reactors (SMRs), advanced reactor technology (ART), and first-of-a-kind commercial reactor restart projects.