541 senior staff mechanical engineer jobs found

As a Fortune 500 company, Packaging Corporation of America (PCA) is an ideas and solutions company. Our corrugated packaging business seeks to be the leader in helping our customers - large and small - package, transport and display products of all kinds. Our white paper business delivers Paper With Purpose by providing the highest level of customer service and operational excellence. We have approximately 15,000 team members in more than 100 locations in the United States that strive to meet the local needs of our customers. Our mission is to serve the needs of our customers, today and tomorrow, with products and services that exceed expectations for performance and environmental responsibility. People • Customers • Trust Location: Flexible (Lower 48 States) | Travel: 80% | Relocation: Not Required Are you ready to take your engineering expertise on the road and make a real difference? As a Senior Staff Mechanical Engineer at PCA, you'll play a critical role in driving...

Fulfil is a well-funded, rapidly growing, and inclusive company that has developed a custom automation robotics system to pick and pack online orders of groceries and other consumables, bringing delight and a value proposition to consumers that doesn't exist today. Additionally, its unique design and technology is purpose-built to solve today's environmental problems in the world's food supply chain. Founded by a team with previous startup success and backed by top-tier VCs, we are committed to reducing waste, improving environmental impact, and reducing emissions with truly new technology. Our first commercial product launch went live in 2024, we deployed more in 2025 and are in line for even more in 2026. We can't do it alone -- we're seeking curious, capable, passionate team members motivated by the opportunity to create lasting impact on the world through their work. This role offers ample growth opportunities while working side-by-side with an impassioned, multi-disciplinary...

Agile Space Industries is a rapidly growing supplier of propulsion hardware and engineering services for the space industry. Headquartered in Durango, Colorado, with expanding operations in and Tulsa, Oklahoma, and upcoming growth in Seattle, Washington, Agile has achieved more than 40% year-over-year growth for the past three years, and our momentum continues to accelerate. At Agile, we design, build, and test in-space propulsion systems that give spacecraft the ability to maneuver with precision, reliability, and purpose. Our technologies play a critical role in missions that range from lunar landings and resource utilization to national defense, human exploration, and commercial space transport. We are seeking bold and driven individuals who thrive in a hands-on, fast-moving environment and want to help write the next chapter of space history as part of a close-knit, innovative team. You will take on a demanding and rewarding role at Agile, directly shaping the future of...

Job Type Full-time Description Agile Space Industries is a rapidly growing supplier of propulsion hardware and engineering services for the space industry. Headquartered in Durango, Colorado, with expanding operations in Mount Pleasant, Pennsylvania, and Tulsa, Oklahoma, Agile has achieved more than 40% year-over-year growth for the past three years, and our momentum continues to accelerate. At Agile, we design, build, and test in-space propulsion systems that give spacecraft the ability to maneuver with precision, reliability, and purpose. Our technologies play a critical role in missions that range from lunar landings and resource utilization to national defense, human exploration, and commercial space transport. We are seeking bold and driven individuals who thrive in a hands-on, fast-moving environment and want to help write the next chapter of space history as part of a close-knit, innovative team. Agile Space Industries is seeking a highly experienced Mechanical...

Job Description At EXP, we're driven to provide innovative solutions for the world's built and natural environments. As a team of engineers, architects, designers, scientists, creators and a community of professionals, we bring diverse and talented people together to solve the world's most complex challenges. Here, you join a team that leverages differences, harnesses their entrepreneurial spirit in an employee-owned company, that believes diversity is what gives us strength, seeks sustainable results and shares ambitions for each other, our clients and the communities we are part of and serve. To be a part of EXP means to have your own experience, while staying connected to a global network of professionals, who believe we are a part of something bigger. Together, we are EXP. Are you ready to design your future? Be our next Senior Plumbing Engineer in San Francisco, California or Walnut Creek, California! Your work environment at EXP EXP is seeking an experienced and...

Your mission You will play an important role in a dynamic and passionate team, collaborating on a variety of projects of all sizes and scopes in the environment, renewable energies, hydroelectricity, transportation, materials, buildings and climate change markets. Boldness, innovation and collaboration are an integral part of our daily operations. Englobe - Who we are At Englobe, our rigor is matched by sincere care for our colleagues, our customers, our communities, and the environment. We are committed to making a real difference, one project at a time, and to having a positive, lasting impact. We approach our work with fresh perspectives, relying on collaboration and a diversity of voices. With an entrepreneurial spirit, we empower our customers and communities with boldness and optimism. We are determined to leave a lasting legacy for generations to come. Does this sound like the right fit for you? Learn more about the role ! Your main responsibilities As a...

We're ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life-from advancing space exploration and life-saving medical devices to building autonomous electric vehicles. With 3,000+ experts across North America, we partner with leading companies in aerospace, medical devices, robotics, automotive, commercial vehicles, EVs, rail, and more. As part of the global ALTEN Group-57,000+ engineers in 30 countries-we deliver across the entire product development cycle, from consulting to full project outsourcing. When you join ALTEN Technology USA, you'll collaborate on some of the world's toughest engineering challenges, supported by mentorship, career growth opportunities, and comprehensive benefits. We take pride in fostering a culture where employees feel valued, supported, and inspired to grow. Note: This is a Prospective/Pipeline Posting - Not an Active Role We are not currently hiring for an open position under this posting. We're building...

About Us Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. With $8.1 billion in revenue for 2025, Clayco specializes in the "art and science of building," providing fast-track, efficient solutions for industrial, commercial, institutional, and residential related building projects. About LJC LJC Design & Engineering (LJC) is a full-service architecture, engineering, and design firm committed to enhancing the quality of the human experience through integrated design. We are a team of high-energy professionals who share a passion for design, a collaborative approach, and a casual culture. We solve challenges by leveraging the collective expertise and ingenuity of the best and brightest minds across development, design, engineering, and construction. The Role We...

Kleinschmidt has a full-time opening for a Senior Structural Engineer in either our Ontario or Halifax, Canada offices to manage projects and client relationships, and to perform technical design for hydroelectric, fisheries, and water resources projects. Our flexibility and core value of relationships allows us to offer employees the opportunity to work in a hybrid environment. Salary: CAD $135,000 - $180,000 per year (based on experience) Who You Are A licensed Professional Engineer with a BS, BSc or BEng in Civil Engineering (concentration in Structural Engineering) and a minimum of 10 years' experience in structural engineering. Experience with hydroelectric design projects and fisheries related or water resource projects is a plus. Specialty experience within the structural engineering discipline, such as seismic design or finite element modeling, is also a plus. Knowledgeable: Knowledge of standards and codes applicable to the structural engineering discipline is...

DLB Associates is a premier engineering and consulting firm specializing in innovative, mission-critical solutions across hyperscale data centers, advanced infrastructure, and high-performance building systems. With over four decades of expertise, we partner with some of the world's most influential companies to design and optimize environments that demand precision, scalability, and resilience. Join us and be part of a team where your voice matters, your work makes an impact, and your growth is a shared priority. Position Title: Lead Mechanical Engineer Position Location: Remote - work virtually from anywhere in the United States Job Summary Positions are available in our Mission Critical Department which focuses primarily on hyperscale data centers and related mission critical facilities. The Lead Mechanical Engineer will have the opportunity to work with and collaborate with senior design staff and further develop their mechanical design expertise. This...

About Us Founded in 2015 to develop the world's first industrially scalable laser metal additive manufacturing solution, VulcanForms is reshaping how the world manufactures critical products. We build and operate advanced digital infrastructure that enables innovation, accelerates growth, and supports sustainability across aerospace, defense, medical, and other essential industries. Through our vertically integrated capabilities, including scalable additive manufacturing and precision machining, we deliver true end-to-end production at scale by combining cutting-edge technology with a foundation of proven industrial craftsmanship. Our team brings deep expertise in manufacturing, materials science, software, automation, and operations, united by a shared commitment to quality, curiosity, and accountability. We foster an inclusive culture where people take ownership, solve meaningful problems, and continuously learn, because we believe diverse perspectives lead to better...

Worker Type Regular Job Description Summary The Sr. Mechanical Engineer applies engineering techniques to design, install, modify, analyze, repair and test tools, engines, machines and other mechanically functioning equipment. Leads and supports the mechanical design, testing, and production of electrical machines as well as the design of electronics packaging for high altitude aerospace applications. Leads or supports mechanical packaging development effort for electronic equipment that withstand stringent environmental requirements (i.e., mass, volume, thermal, vibration). Manages mid-size development projects outsourced to sub-contractors (development of a system, equipment or components). Position Responsibilities Leads or supports the thermal, structural, dynamic, and fluid flow analysis efforts for electronics equipment Leads the testing and data collection in the laboratory and the field Models the mechanical devices and selects the proper material...

Worker Type Regular Job Description Summary The Mechanical Engineer III applies engineering techniques to design, install, modify, analyze, repair and test tools, engines, machines and other mechanically functioning equipment. Leads and supports the mechanical design, testing, and production of electrical machines as well as the design of electronics packaging for high altitude aerospace applications. Leads or supports mechanical packaging development effort for electronic equipment that withstand stringent environmental requirements (i.e., mass, volume, thermal, vibration). Manages mid-size development projects outsourced to sub-contractors (development of a system, equipment or components). Position Responsibilities Leads or supports the thermal, structural, dynamic, and fluid flow analysis efforts for electronics equipment Leads the testing and data collection in the laboratory and the field Models the mechanical devices and selects the proper material...

Mechanical Project Engineer (PE) Company Name: Cuhaci & Peterson Location: Orlando, FL Project Focus: Commercial, Retail, Grocery, Multifamily, and Industrial Work Setting: On-Site Salary: $120,000+ (Based on Experience) + Relocation & Performance Bonus Recruited Exclusively By: Luxus | AEC Talent Partners Position Overview Are you a licensed engineer ready to transition from production to true technical stewardship? We are seeking a Mechanical Project Engineer to serve as a cornerstone of our Orlando engineering operations. In this role, you will do more than execute designs-you will architect the mechanical soul of complex commercial infrastructures. You will act as a primary technical authority, steering the division toward innovative, code-compliant solutions while mentoring the next generation of engineering talent. Joining our team means immersing yourself in a culture that prizes "practical brilliance." We don't just design systems; we bring...

*This position is contingent upon contract award* Amentum is seeking a skilled and driven Mechanical Engineer to join our engineering team based in Houston, TX. This is a design-focused role that spans the full product lifecycle - from early concept development through hardware fabrication, installation, and on-site operation. The ideal candidate is a licensed or degree-qualified mechanical or aerospace engineer who brings deep expertise in mechanical systems design, structural analysis, and high-pressure fluid systems, and who communicates and collaborates effectively across engineering and operations teams. This position offers the opportunity to lead and participate in design reviews, work alongside vendors to bring hardware from drawing to reality and provide direct technical support during field installation and testing. If you are looking for a role where your engineering decisions have real, visible consequences on mission-critical systems, this is the opportunity for...

*This position is contingent upon contract award* Amentum is seeking a motivated and technically capable Field Engineer - Electrical / Mechanical Integration to join our engineering team based in Houston, TX. This is a hands-on, multifaceted role that blends electrical troubleshooting, mechanical installation support, field execution, engineering design review, wiring documentation, test support, and technician mentorship. The ideal candidate has a strong technical foundation, preferably supported by a STEM degree, and direct experience working with fielded hardware that includes electrical systems, low-voltage circuits, sensors, wiring harnesses, connectors, mechanical interfaces, brackets, enclosures, mounting hardware, and instrumentation. This role requires someone who can work from schematics, wiring diagrams, mechanical drawings, interface control documents, and field work instructions to support installation, checkout, fault isolation, corrective action, and...

Job Description At EXP, we're driven to provide innovative solutions for the world's built and natural environments. As a team of engineers, architects, designers, scientists, creators, and a community of professionals, we bring diverse and talented people together to solve the world's most complex challenges. Here, you join a team that leverages differences, harnesses entrepreneurial spirit in an employee-owned company, believes diversity gives us strength, seeks sustainable results, and shares ambitions for each other, our clients, and the communities we serve. Together, we are EXP. Are you ready to design your future? Be our next Senior Mechanical Engineer Your work environment at EXP In this role, you will be part of the MEP team supporting Transit, Transportation, Commercial, Institutional, and Public Infrastructure projects throughout the Mid-Atlantic region. This position provides technical leadership for HVAC, plumbing, and fire protection systems while working...

Job Description At EXP, we're driven to provide innovative solutions for the world's built and natural environments. As a team of engineers, architects, designers, scientists, creators and a community of professionals, we bring diverse and talented people together to solve the world's most complex challenges. Here, you join a team that leverages differences, harnesses their entrepreneurial spirit in an employee-owned company, that believes diversity is what gives us strength, seeks sustainable results and shares ambitions for each other, our clients and the communities we are part of and serve. To be a part of EXP means to have your own experience, while staying connected to a global network of professionals, who believe we are a part of something bigger. Together, we are EXP. Are you ready to design your future? Be our next Senior Mechanical Engineer Your work environment at EXP In this role, you will be a part of the Mechanical team, of the MEP Life Sciences &...

At Bloom Energy, our vision for a world powered by clean, reliable, and affordable energy is more than just a dream-we're making it reality. For over two decades, we've been at the forefront of the global energy transition, pioneering solutions that empower critical industries to thrive in a rapidly digitizing, energy-intensive world. From revolutionizing power for AI-driven data centers to ensuring resilience for hospitals, electric grids, manufacturing facilities, and utilities, our solid oxide fuel cell (SOFC) and solid oxide electrolyzer (SOEC) technologies are redefining what's possible by delivering energy abundance for all. With more than 30,000 fuel cell modules deployed worldwide, we are the trusted partner for Fortune 100 companies and innovators alike. Our cutting-edge solutions enable unparalleled "time-to-power" capabilities, reliability, and sustainability, ensuring our customers remain ahead in a world where soaring energy demand and intensifying energy scarcity are...

Job Description Take Your Design Career to the Next Level Kleinfelder, a Forbes' Top Employer for Engineers in North America, is committed to a people-first culture, technical excellence, and creating opportunities where employees can thrive! Are you ready to be challenged, make a difference, and experience professional growth in your career? Kleinfelder's Design team is looking for you! From bridge and structural engineering to civil, electrical, mechanical, and process engineering, Kleinfelder's collaborative Design Services create synergy across multiple disciplines. Step Into Your New Role As a Project Manager, Mechanical Engineer on our MEP engineering team within our facilities department, you will work closely with architects, owners, developers, site development engineers, structural engineers and other team members to provide project management and technical expertise, design and consulting services for all aspects of facility and site design. This includes...