Mechanical Engineer

Job Title: Mechanical Engineer Job Description This role is ideal for a mechanical engineer with 3-5 years of experience who is passionate about complex building systems and advanced technology environments. You will design and coordinate HVAC, plumbing, and fire protection systems for highly technical facilities, including aerospace, high tech, data centers, higher education, industrial, and healthcare projects. The position offers exposure to unique, non-cookie-cutter engineering challenges, a strong growth path toward project management or principal-level leadership, and the opportunity to work in a collaborative, high-performing team environment. Responsibilities + Design and engineer HVAC, plumbing, and fire protection systems for a wide range of commercial and industrial facilities, including aerospace, high tech, data centers, higher education, industrial, and healthcare projects. + Develop mechanical system layouts, calculations, and specifications using tools such as Revit, CAD, and Bluebeam to produce accurate and coordinated construction documents. + Participate in the design of complex, one-of-a-kind engineering solutions such as environmental chambers, launch test facilities, manufacturing spaces, clean rooms, and other advanced technology environments. + Collaborate closely with cross-disciplinary teams, including mechanical, plumbing, and electrical engineers, to ensure integrated and efficient building system designs. + Coordinate with clients, architects, and contractors to understand project requirements, present design concepts, and address technical questions throughout the project lifecycle. + Support and, depending on project size, lead project teams, providing guidance and coaching to junior staff and contributing to their technical development. + Assist project managers with planning, scheduling, and execution of projects, including client interface, coordination meetings, and managing design deliverables. + Take ownership of assigned tasks and deliverables, ensuring accuracy, timeliness, and alignment with client expectations and project standards. + Contribute to innovative approaches in design processes and workflows, seeking continuous improvement in how mechanical engineering work is performed. + Maintain a proactive, positive, and team-oriented attitude, participating in a culture where the team wins and loses together and supports each other in meeting commitments. + Demonstrate accountability by owning your work, following through on commitments, and maintaining high professional standards in front of clients and internal stakeholders. Essential Skills + 3-5 years of mechanical engineering experience focused on HVAC, plumbing, and fire protection systems. + Engineering-in-Training (EIT) or Professional Engineer (PE) license required. + Hands-on experience in commercial or industrial construction environments, such as power, manufacturing, or similar facility types. + Proficiency in mechanical engineering principles related to building systems design, including load calculations, equipment selection, and system layout. + Experience working on projects in aerospace, high tech, data centers, higher education, industrial, or healthcare facilities, or similar complex environments. + Ability to work effectively in a team-based setting, collaborating with other engineers and project stakeholders. + Strong communication skills for client coordination, meetings, and interfacing with internal and external project teams. + Demonstrated ability to take responsibility for project tasks and deliverables, with a high level of accountability and follow-through. Additional Skills & Qualifications + Experience using Revit for mechanical system modeling and documentation. + Experience with CAD software for drafting and design coordination. + Familiarity with Bluebeam for document review, markups, and collaboration. + Background in designing building systems for specialized facilities such as clean rooms, environmental chambers, and launch test or manufacturing facilities. + Interest in working on highly technical, non-cookie-cutter projects that may present unique engineering challenges rarely seen in a typical career. + Desire for professional growth with the potential to become a project manager or principal, or to remain focused on design as a senior technical contributor. + Ability to lead project teams, providing mentorship and direction when acting in a project management capacity. + Strong interpersonal skills and a team-oriented mindset, with the ability to build positive relationships and contribute to a supportive, high-performing culture. + Proactive approach to problem-solving and process improvement, including seeking innovative ways to deliver engineering solutions. + Positive attitude and resilience when facing challenging project conditions or difficult client situations. Work Environment You will work in an office of approximately 27 employees, with a mix of electrical and mechanical/plumbing engineers. The team structure is flexible rather than rigidly segmented; project leaders select the right people for each project and aim to keep teams together throughout the life of the project. The environment has a strong family feel where colleagues know each other well, support one another, and share a commitment to high performance. Project types span healthcare, education, government, science and technology, and commercial facilities, including work with major aerospace and technology organizations. Engineers collaborate closely and are expected to be visible, engaged, and accountable, rather than working in isolation. The culture emphasizes teamwork, mutual support, proactive communication, and a positive attitude, especially when navigating demanding projects or challenging client situations. High expectations are placed on engineers to pull their weight, take ownership of their work, and contribute to complex, cutting-edge projects, with a clear path for growth into project management or principal-level roles for those who are interested. Job Type & Location This is a Contract to Hire position based out of Littleton, CO. Pay and Benefits The pay range for this position is $40.00 - $50.00/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: - Medical, dental & vision - Critical Illness, Accident, and Hospital - 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available - Life Insurance (Voluntary Life & AD&D for the employee and dependents) - Short and long-term disability - Health Spending Account (HSA) - Transportation benefits - Employee Assistance Program - Time Off/Leave (PTO, Vacation or Sick Leave) Workplace Type This is a hybrid position in Littleton,CO. Application Deadline This position is anticipated to close on Aug 4, 2026. About Actalent Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. 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. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. 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 View email address on click.appcast.io for other accommodation options. San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records. Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.