Principal Mechanical Engineer (Solar Arrays) ProtingentPrincipal Mechanical Engineer (Solar Arrays)Westminster, CO$167,096–$229,757 / yearAbout Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies . Job Description: The Principal Mechanical Engineer role focuses on applying advanced technical principles, theories, and concepts to engineering projects, as well as contributing to the development of new principles and concepts.
Mechanical Engineer, Spacecraft (Ii-Iii) True AnomalyMechanical Engineer, Spacecraft (Ii-Iii)Denver, CO$90,000–$165,000 / yearSupport the design, analysis, and optimization of mechanical structures, mechanisms, and assemblies for LEO/GEO satellites, small sat platforms, and on-orbit servicing vehicles, ensuring designs meet performance, mass, and reliability requirements. To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
NewIndustrial Engineering Technician ActalentIndustrial Engineering TechnicianAurora, CO$45–$50 / hourYou collaborate closely with experienced engineers, production leaders, quality professionals, and manufacturing teams in a highly collaborative environment that values continuous improvement, innovation, and measurable impact on production performance. Essential Skills Associate degree or technical diploma in Industrial Engineering Technology, Manufacturing Technology, Mechanical Engineering Technology, or a related technical discipline, or equivalent relevant manufacturing experience.
NewProject Manager (Engineering Or Construction) ActalentProject Manager (Engineering Or Construction)80010, CO$48–$58 / hourYou will work in a dynamic and fast-paced environment, leading a team of professionals in the design and construction of large-scale industrial projects across various sectors such as airports, automotive, food & beverage, parcel, postal, power, and heavy industrial. We are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service.
Structural/Mechanical Engineer EnduroSatStructural/Mechanical EngineerDenver, COFull timeAs a Structural/Mechanical Engineer, you are responsible for the mechanical engineering activities related to spacecraft design, manufacturing, testing, launch, and operations. A fast-growing space scale-up at the forefront of satellite innovation, specializing in advanced software-flexible satellites for commercial, governmental, and scientific endeavors.
NewBuilding Controls Application Engineer Mantis InnovationBuilding Controls Application EngineerDenver, COThis role will provide the opportunity to work in a dynamic and fast-paced environment, where you will gain valuable experience with cutting-edge technologies and play a pivotal role in the successful completion of projects We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. Basic networking knowledge, including manipulating PC settings to set up and commission devices on a network.
Senior Mechanical HVAC Engineer Matrix TechnologiesSenior Mechanical HVAC EngineerWestminster, CO$104,000–$140,000While performing the duties of this job, the employee is occasionally required to stand; walk; sit; stoop, kneel, crouch; use hands to finger, handle, or feel objects, tools or controls; reach with hands and arms; talk, and hear. This employee may perform industrial field work, which could include exposure to hazardous locations, inclement weather, moving mechanical parts, noise, ladders, uneven ground, and stairs.
Engineer, Mechanical or Electrical (Construction Project Development) MasTec IndustrialEngineer, Mechanical or Electrical (Construction Project Development)Centennial, ColoradoRemote$140,000–$180,000 / yearFull timeOverview: The position of Development Engineer will provide technical direction to assigned design efforts pre-and post-award of projects and will report to the Engineering Department Manager. MasTec Clean Energy & Infrastructure and our subsidiaries do not work with any third-party recruiters or agencies without a valid signed agreement and partnership with the Corporate Talent Acquisition Team.
NewR&d Engineer ActalentR&d EngineerAurora, COWe are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email actalentaccommodation@actalentservices.com for other accommodation options.
Redfield - Civil/Mechanical Equipment Operator (Eligible to drive) Primoris UsaRedfield - Civil/Mechanical Equipment Operator (Eligible to drive)Aurora, ColoradoOn projects spanning utility-scale solar, renewables, power delivery, communications, and transportation infrastructure, we offer unmatched value to our clients, a safe and entrepreneurial culture to our employees, and innovation and excellence to our communities. Mobilization and Demobilization- Ability to mobilize equipment being operated, including loading, unloading, securing, set up and tear down.
NewSr. Engineer, Design Clark PacificSr. Engineer, DesignDenver, CO$175,000–$275,000 / yearTo support our mission of advancing industrialized construction innovations and products for a safer, more sustainable, and more predictable building environment, we are seeking Experienced Engineering Professionals with strong backgrounds in structural, civil, and construction disciplines to join our team. This role is ideal for engineering professionals who are ready to expand their scope, responsibilities, and strategic influence in the development lifecycle of complex structural systems and project outcomes while contributing to Clark Pacific’s growth—while remaining deeply connected to the engineering discipline.
NewOpto-Mechanical Engineer (Quantum Computing) InfleqtionOpto-Mechanical Engineer (Quantum Computing)Boulder, CO$130,000–$155,000 / yearUsing high-fidelity opto-mechanical simulations and executing on experimental strategies to characterize optical stability, drift, noise sources, and scaling limits, ranging from back-of-the-envelope calculations to detailed finite element analysis (FEA) encompassing tolerance stack-ups, thermal behavior, structural stiffness, and vibration sensitivity. Designing components for opto-mechanical integration of precision components and assemblies supporting lasers, optics, vacuum-integrated components, state-of-the-art sensors, high-speed photodetectors, DMDs, SLMs, AODs, and EOMs.
NewHardware Quality Engineer Emporia EnergyHardware Quality EngineerDenver, COConduct structured supplier performance reviews and evaluations; maintain supplier scorecards, manage clear quality metrics, and drive continuous improvement across the supply base to ensure supplier-originated issues are properly attributed and resolved. Exceptional written and verbal communicator who leads with the bottom line — able to distill complex quality and supply chain issues into clear, concise takeaways for cross-functional teams and senior leadership.
NewTransmission Line Engineer focus on Renewable Energy Projects (Wind, Solar, & BESS) Mesa Associates, Inc.Transmission Line Engineer focus on Renewable Energy Projects (Wind, Solar, & BESS)Denver, CO$123,000–$142,000 / yearThe Engineer position is an experienced engineering position that applies intermediate engineering and design principles to perform tasks using manual or computer-aided programs in support of Renewable project. The expected compensation is a range determined by factors including but not limited to education, experience, and qualifications of the candidate, internal equity, work location, and hiring department’s fiscal resources.
NewSenior GNC Engineer - Spacecraft ADCS Approach VentureSenior GNC Engineer - Spacecraft ADCSGolden, CO$120,000–$170,000 / yearThis role will own major portions of the spacecraft attitude determination and control system, from early architecture and simulation through flight software implementation, hardware-in-the-loop testing, and on-orbit operations. The work combines spacecraft dynamics, estimation, controls, embedded software, simulation, hardware integration, and flight operations, with significant influence over both current and future vehicle architectures.
NewThermal Engineer ActalentThermal EngineerLouisville, CO$65–$72 / hourWe are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email actalentaccommodation@actalentservices.com for other accommodation options.
NewSenior GNC Engineer - Navigation & Estimation Approach VentureSenior GNC Engineer - Navigation & EstimationDenver, CO$120,000–$160,000 / yearWorking alongside controls, perception, avionics, embedded software, and systems engineering teams, you'll transform complex sensor data into reliable vehicle state information while helping define the navigation architecture for future spacecraft. As the company progresses from prototype development toward flight-qualified systems, this role will lead the design and implementation of the navigation algorithms that allow spacecraft to accurately determine their position, orientation, and motion while operating in dynamic orbital environments.
NewIntegrated Circuit Design Engineer ActalentIntegrated Circuit Design EngineerBroomfield, CORemote$140,000–$185,000 / yearEssential Skills Minimum 6+ years of experience (advanced degree inclusive) with photonic integrated circuits (PIC) design using photonic simulation tools such as Lumerical, RSoft, or similar guided-mode and FDTD solvers, along with photonic layout tools such as Klayout, GDSFactory, or equivalent. You will work closely with physicists, optical engineers, and cross-disciplinary teams to create novel photonic integrated circuits (PICs), translate complex technical requirements into practical designs, and validate performance through simulation, layout, fabrication, and testing.
NewModular Data Center Systems Engineer - Spark CrusoeModular Data Center Systems Engineer - SparkDenver, CO$148,740–$170,000 / yearWe're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved — people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services. Documentation & Hand-off Unified Design Packages: Coordinate and maintain comprehensive technical documentation (i.e. LOD 400) by aggregating inputs from various engineering disciplines, ensuring a cohesive "data center in a box" blueprint for manufacturing partners.
NewHVAC Project Manager RimePro IncHVAC Project ManagerAurora, COThis position supports projects involving commercial and industrial HVAC systems, piping, refrigeration, and building automation systems, often delivered through integrated approaches that include engineering, fabrication, installation, and commissioning. This role manages all aspects of project delivery including budgeting, scheduling, procurement, and team coordination while ensuring projects are completed safely, efficiently, and within budget.