Mechanical Engineer
Citrine-LL
Description We are seeking a Mechanical Engineer to support the design and delivery of mechanical systems across commercial, industrial, and mission-critical projects. This role is ideal for an engineer who enjoys solving complex technical challenges, developing practical design solutions, and collaborating with multidisciplinary teams throughout the project lifecycle. The Mechanical Engineer will support projects through design, construction support, commissioning coordination, and technical documentation. This position will contribute to mechanical system design activities including HVAC, plumbing, equipment selection, system analysis, and field support while working closely with project managers, engineers, designers, clients, and contractors. This position is ideally suited for candidates located near Lakewood or Grand Junction, CO, with flexibility for hybrid work arrangements. Remote work may be considered for qualified candidates based on role requirements and business needs. Occasional travel to project sites, client locations, and Citrine offices is required. Requirements Design HVAC, plumbing, and mechanical systems for commercial, industrial, and mission-critical building projects. Perform load calculations, equipment sizing, system analysis, and engineering evaluations. Develop engineering solutions that improve system performance, reliability, safety, and code compliance. Prepare technical reports, calculations, drawings, specifications, and other project documentation. Support projects through design development, construction administration, commissioning coordination, and project closeout. Review project requirements, technical documents, and design criteria to support successful project execution. Coordinate with internal teams, clients, contractors, and other disciplines to ensure project alignment and timely delivery. Conduct site visits, field investigations, and equipment assessments as required. Assist with troubleshooting, problem-solving, and resolving technical issues during design, construction, and operational phases. Apply applicable engineering standards, codes, regulations, and company quality control procedures. Maintain accurate project records, documentation, and deliverables in accordance with company and client requirements. Support project planning, scheduling, and progress monitoring activities. Work independently and collaboratively while managing multiple assignments, priorities, and deadlines. Contribute to a safe working environment and follow company health, safety, and quality procedures. Qualifications Bachelor's degree in Mechanical Engineering or related engineering field. 5+ years of experience in HVAC and/or building mechanical systems design, or related engineering experience. Strong understanding of HVAC design principles, psychometrics, thermodynamics, and heat transfer concepts. Experience designing commercial building mechanical systems and HVAC applications. Experience with engineering design software such as Revit, AutoCAD, and/or load calculation software. Ability to read and interpret construction documents, specifications, drawings, and technical documentation. Strong analytical, problem-solving, organizational, and communication skills. Ability to collaborate effectively within multidisciplinary project teams. Ability to manage multiple assignments and meet project deadlines in a fast-paced environment. Willingness to conduct occasional site visits and travel as needed. Background Check and Site Access Candidate must successfully pass a background check, which may include verification of employment, education, and other records in accordance with state, local, and federal requirements. A valid driver's license must be possessed and maintained. The ability to obtain and maintain access authorization for government and other secured facilities and sites is required. Benefits Citrine is committed to supporting the health, well-being, and work-life balance of employees and their families through a comprehensive benefits package, which may include: Medical, dental, vision insurance 401(k) with company match Paid time off, paid holidays, and paid sick Voluntary supplemental insurance options Company cell phone plan Professional development assistance Flexible work schedules Eligibility requirements and waiting periods may apply to certain benefits. Equal Employment Opportunity (EEO) Statement: Citrine LLC is an Equal Opportunity Employer and maintains a workplace free from discrimination, harassment, and retaliation. We are committed to providing equal employment opportunities to all applicants and employees in accordance with applicable federal, state, and local laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, sex pregnancy, sexual orientation, gender identity, national origin or ancestry, genetic information, marital status, age, protected veteran status, disability (physical or mental), or any other legally recognized protected basis under federal, state, or local laws, regulations, or ordinances. We are committed to providing reasonable accommodations for qualified individuals with disabilities in our application and hiring processes. If you are an individual with a disability and require assistance or accommodation to complete the application process, please contact us at View email address on click.appcast.io. #J-18808-Ljbffr Citrine-LL
$146.85k
...year (GS 14)Dates: Open 08/27/2026 to 09/03/2026Schedule: Full-timeWork type: PermanentRelocation: FalsePosition ID: CBVL-26-13048931-IMP-ERWDocument ID: 882413100Grade: GS 14Job category: Mechanical Engineering (0830)Hiring path: fed-internal-search, fed-transition, landSuggestedWork at office- Summary You will serve as a Mechanical Engineer with Bureau of Reclamation. This position is located within the Department of the Interior, Bureau of Reclamation, Denver, Mechanical Structures, LAKEWOOD,COLORADO. Major Duties Bureau-Wide (Bureau of Reclamation) - This...SuggestedPermanent employmentFull timeTemporary workWork at office
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$84.7k - $144.43k
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Senior Mechanical HVAC Engineer ABOUT USMatrix Technologies, Inc. has been a leading provider of engineering, automation, and systems integration services since 1980. Guided by 'The Matrix Way,' we value teamwork, collaboration, and fun. Recognized as a Top Workplace,...Full timeTemporary workFor contractorsCasual workWork at officeLocal areaImmediate startWork from homeFlexible hours- DescriptionAs a Mechanical Engineer, you will work on project teams to create world-class designs for new projects, alterations and redevelopments on a variety of power projects. The Mechanical Engineer will work with the project team throughout the design and construction...Contract workWork at office
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$110.6k - $145.2k
...complexities of decarbonization and deliver a cleaner and more secure energy future. We have multiple positions available for mechanical engineers seeking to develop their skills working closely with our clients and operations teams as we expand our energy transition...Full timeWork at officeRemote work- We are a globally recognized Architecture, Engineering, and Construction (AEC) firm delivering innovative solutions for some of the world... ...long-term value.We are seeking a highly experienced Senior Mechanical Engineer to lead the planning, design, and execution of...For contractors
$88.5k - $126.6k
This OpportunityWSP is currently initiating a search for a Mechanical Engineer for our Denver, CO office. Be involved in projects with our Property & Buildings Team and be a part of a growing organization that meets our clients’ objectives and solves their challenges.At...Work at officeLocal areaFlexible hours- ...MISSIONWe are seeking a Mid-Career Spacecraft Tooling & MGSE Design Engineer to serve as a capable individual contributor on our Space... ...representative.BASIC QUALIFICATIONSBachelor's degree in Mechanical Engineering, Aerospace Engineering, or related STEM field.2-7...Permanent employment
$107.1k - $160.7k
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$90.3k - $189.6k
Job Title: Mechanical Engineer Subject Matter ExpertJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental USAnticipated Posting End...Contract workWork experience placementWork at officeFlexible hours$90k - $165k
...deliver ambitious results.It’s the people. Our team is our competitive advantage and we are better together.YOUR MISSIONAs a Mechanical Engineer (II-III) at True Anomaly, you will be at the forefront of designing and developing the next generation of spacecraft that define...Permanent employment$75k - $165k
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$50 per hour
...1st Century Security vision. We don’t just build systems — we engineer survivability, performance, and reliability into every component... ...for this position:Researches, plans, designs and develops mechanical products and systems such as instruments, controls, robots, engines...Full timeTemporary workWork experience placementInterim roleCasual workFlexible hours$74.35k - $113.6k
...Mechanical EngineerThis position will offer you the ability to directly apply your knowledge of thermodynamics, heat transfer, and fluid mechanics. You will be involved in the system engineering aspects of power plant engineering and oil & gas engineering, including the...Hourly payLocal area3 days per week$28 - $32 per hour
...Job Description Job Description Project Engineer – Drive Commercial and Industrial Mechanical Projects with Horizon Mechanical Solutions Job Overview: Company: Horizon Mechanical Solutions Salary/Pay Rate: $28–$32 per hour (Entry-Level Project Engineer)...Hourly payWeekly payDaily paidFull timeContract workFor contractorsApprenticeshipFor subcontractorInternshipImmediate start$140k - $160k
About Exponent Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve... ...globally Our Opportunity We are currently seeking a Mechanical Engineer or Electrical Engineer with a background or focus in...Work at officeFlexible hours$84.7k - $144.43k
...Senior Mechanical Controls Engineer - Mission CriticalDLR Group is an integrated design firm with a promise to elevate the human experience through design. This fuels the work we do around the world and inspires our mission to improve the lives of our clients, our communities...Local area
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