Mechanical Engineer - Mission Critical
Harley Ellis Devereaux
Job Description
Job Description
Mechanical Engineer - Mission Critical
Our Mechanical Engineering team is looking to add an experienced team member to our group of talented engineers. The Mechanical Engineer builds on foundational experience to take independent ownership of portions of project design, documentation, and coordination.
About HED
We are a team that is full of ideas, experience, creativity, passionate opinions, insatiable curiosity, uncompromising integrity, commitment, and skill. Our culture is about aspiration, embracing change and challenges, listening to (and learning from) each other, encouraging continual learning, and inspiring collective growth. As an inclusive, integrated architecture and engineering practice, we value the diversity of perspectives, experiences, abilities, and expertise that advance both the work we do, and the world we share.
Position Summary
This role is trusted to perform mechanical engineering tasks with minimal supervision and supports project delivery from concept through construction. The Mechanical Engineer serves as a technical contributor and emerging mentor, contributing to calculations, code research, QAQC, and coordination across disciplines. Individuals in this role are expected to deepen their technical knowledge, begin supporting client interaction, and develop the critical thinking required for future engineering leadership roles.
Essential Functions
- Lead design development and calculations for assigned mechanical systems across schematic, design development, and construction document phases.
- Independently perform mechanical design tasks – such as load calculations, equipment sizing, controls sequences and diagrams, and code compliance checks - with minimal input.
- Prepare technical documentation for mechanical systems, including system descriptions and narratives, Division 21, 22 & 23 specifications, equipment schedules, and redline markups.
- Develop and review mechanical system layouts in Revit – including HVAC, plumbing and/or fire protection - in coordination with architectural and structural backgrounds.
- Coordinate mechanical design with internal disciplines and external consultants to resolve design conflicts and progress design.
- Review and respond to mechanical RFIs and submittals with support from engineers
- Perform field verification for mechanical conditions, assist with punch walks, and participate in mechanical construction observation visits.
- Participate in early-phase design strategy discussions and support mechanical discipline leads with technical insight.
- Engage in internal QAQC processes and perform peer reviews of mechanical drawings and documentation for code compliance and drafting consistency.
- Begin mentoring mechanical designers and interns in software use, modeling best practices, documentation standards, and calculation basics.
- Participate in internal and external project meetings, and support the preparation of agendas, meeting minutes, and follow-up documentation with a focus on mechanical scope.
- Track and manage hours on assigned work and assist in project planning discussions regarding scope and resource allocation.
Requirements
- Bachelor’s degree in mechanical engineering, or equivalent, required.
- P.E. licensure required.
- 5+ years in the AEC Industry preferred.
- An understanding of the financial status of projects as they progress, development of cost budgets for projects, value of client relationships and be able to deliver projects with a focus on the quality is preferred.
- Written and verbal communication skills commensurate with the position required.
- Strong organizational skills required.
- Revit experience required.
- Experience with computers, specifically for word processing, spreadsheet use/creation and email required.
- Detail-oriented, self-motivated, enthusiastic, flexible and curious personalities required.
- Ability to work well with others under deadline situations required.
Physical Requirements
- Prolonged periods of sitting at a desk and working on a computer.
- Must be able to effectively communicate in writing and verbally via phone, video conferencing, and in-person.
- Visual acuity to perform responsibilities.
Work Environment
- We embrace a hybrid model that promotes both autonomy and collaboration, including the freedom to work from home, with regular in-office days to connect with teammates and build culture.
- The office is a professional, open-space environment for collaborative and independent work.
Other Duties
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.
- ...Job Description Job Description Electrical Engineer - Mission Critical HED is looking to add an experienced team member to our group of... ...coordination challenges with architectural, structural, mechanical, and civil design partners. Serve as the technical lead...SuggestedWork at officeWork from homeFlexible hours
- ...Job Description Electrical Designer - Mission Critical HED is looking to add an... ...inclusive, integrated architecture and engineering practice, we value the diversity of perspectives... ...design with internal disciplines (mechanical, plumbing, lighting, sustainability) and...SuggestedWork at officeWork from homeFlexible hours
- ...Job Description Job Description Structural Engineer - Mission Critical Our Structural Engineering team is looking to add a talented engineer to our team. As a Structural Engineer at HED, you bring 8+ years of professional experience and hold a Professional Engineer...SuggestedWork at officeWork from home
- ...operating in complex, uncertain, and safety‑critical conditions. We do not build research... ...reliability, speed of execution, and mission relevance. We prioritize performance... ...accountability. ASR seeks a mechanical engineer to join our hardware development team....SuggestedPermanent employmentWork at officeLocal area
$124.8k - $183.04k
...stands as a provider of professional engineering services to a broad range of markets,... .... Our specialties include electrical, mechanical, plumbing, fire protection, and technology... ..., and maintenance services for mission-critical systems in buildings. The company specializes...SuggestedFull timeWork at officeLocal areaImmediate startRemote workFlexible hours- ...Group. As a global leader in consulting, engineering, and commissioning services, we... ...commissioning. We are seeking a Senior Mechanical Engineer to join our team in San Diego... ...exciting, challenging, and rewarding career. Mission Critical, Science + Technology, Healthcare, and...For contractorsWork from homeFlexible hours
$146k - $194k
...is a defense technology company with a mission to transform U.S. and allied military... ...the Team The Air Dominance and Strike Mechanical Engineering Team is responsible for designing and... ...successful projects into production Support critical hardware demonstrations with customers...Full timeWork experience placement$132k - $182k
...Who We Are At Firestorm, we’re on a mission to revolutionize how defense solutions... ...the Role Firestorm is seeking a Senior Mechanical Engineer to provide hands‑on technical support... ...DCFSA. HSA. Hospital Indemnity insurance. Critical Illness insurance. Accident insurance....Permanent employmentTemporary workLocal area- ...Job Description Job Description Sector Leader - Mission Critical HED is looking to add an experienced team member with a background in architecture and/or engineering who will be accountable for leading the Mission Critical sector, with a focus on data center projects...Hourly payContract workWork at officeFlexible hours
$166.75k - $208.15k
...At Honeywell Aerospace, we engineer solutions for the world’s most critical missions. We serve customers in the defense and aerospace markets. Seeking a career... ...support Interface with electrical engineers, mechanical engineers and material suppliers to modify and...Temporary workWork experience placementFlexible hours$150k - $275k
...an early-stage deep-tech startup on a mission to prevent millions of cancer deaths by... ...blend hardware, software, and biochemical engineering to disrupt the status quo and... ...About You You are an experienced mechanical engineer who has taken hardware products...Contract workLocal area$91.48k
...our clients and our team. As a global engineering and construction firm, we partner with... ...demands. We’re looking for a skilled Mechanical Engineer with expertise in HVAC and plumbing... ...you would contribute to CDM Smith's mission by: Designing and developing HVAC...H1bWork at officeLocal areaRemote workWork from homeWorldwide$85k - $140k
...Mechanical Engineer II Job ID 2026-5728 Job Location US-CA-San Diego Overview Join a Team Where Engineering Excellence... ...the most complex challenges. Since 1978, we've supported mission-driven organizations in designing systems and environments that...Work at officeFlexible hours$69.39k - $115.65k
...global manufacturer of technology products, including mission systems, radio frequency ("RF") components, RF microwave... ...stands for time-to-market, representing how TTM's time-critical, one-stop design, engineering and manufacturing services enable customers to reduce the...Permanent employmentFlexible hoursShift work- ...Responsibilities Reports to the Hardware Engineering Senior Manager. Responsible for the... ...develop robust, sustainable components, mechanisms, systems and finished products or equipment... ...related largely to overall objectives, critical issues, new concepts and policy matters...Local area3 days per week
$68.77k - $116.19k
...Job Description Job Description Job Title: Mechanical Engineer II Job Description This Mechanical Engineer II role supports the... ...offering broad exposure to cutting-edge technologies and mission-critical programs. Responsibilities Design mechanical components...Permanent employment$110k - $130k
...innovators. Here, visionary minds engineer the future of space... .... Join our small, agile, and mission-driven team where your work has... ...A DAY IN THE LIFE: The Mechanical Engineer III is responsible... ...Technical Reviews: Collaborate in critical reviews to ensure successful...Full timeFor contractorsWork at officeWork visaFlexible hours$115.45k - $168.17k
...Group! As a global leader in consulting, engineering, and commissioning services, we... ...life. We are seeking a Supervising Mechanical Engineer to join our team in San Diego... ...exciting, challenging, and rewarding career. Mission Critical, Science + Technology, Healthcare, and...For contractorsWork at officeRemote workWork from homeFlexible hours- ...defense-tech company with the mission of protecting service members... ...Principal Power Electronics Engineer to own the design of power electronics... ...you'll do: Own flight critical power system design for X-BAT... ...: Work closely with Mechanical, CAD, Embedded, Software, Supply...Full timeTemporary workPart timeWorldwide
$140k - $160k
...rights of freedom of expression and autonomy. Our first mission is to develop motor decoders that restore the ability... ...breakthrough research into real-world, safety-critical systems. Senior Engineer, Mechanical Engineering Implantable Neuroelectronics Team (IRTU...Full timeContract workTemporary workInternshipFlexible hours$90k - $100k
Title: Project Engineer Business Unit: iConstruct Reports to: Project Manager or Assistant Project Manager Location: San Diego, CA WORK... ...builder and developer headquartered in Southern California. Our mission is to continuously evolve the world's most sophisticated and...Full timeFor subcontractor$104.95k - $152.43k
...Group. As a global leader in consulting, engineering, and commissioning services, we... ...commissioning. We are seeking a Senior Mechanical Engineer to join our team in San Diego... ...exciting, challenging, and rewarding career. Mission Critical, Science + Technology, Healthcare, and...For contractorsWork from homeFlexible hours- ...Role Overview The Staff Operations Engineer is responsible for acquiring, modifying, certifying... ..., and maintaining an initial safety-critical operational system that will expand into... ...fleets used for non-standard missions within highly regulated environments. Ability...For subcontractor
$106.5k - $197.5k
...in a shared dedication to our customers' mission and quest for professional growth. L3... ...in defense tech. With customers' mission-critical needs always in mind, our employees deliver... ...Title: Senior Specialist, Electrical Engineer - Power Supply Design Job Code: 37911...Local areaRelocationRelocation packageFlexible hours- ...pursuing this vision and delivering on our mission to clients. We provide the highest... ...At DN, we don't just construct tanks‑we engineer resilience, reliability, and innovation... ...projects span across the country, providing critical infrastructure that supports communities...Flexible hours
- ...defense-tech company with the mission of protecting service members... ...-level Power Electronics Engineer who is excited to help bring... ...tied to our power architecture critical path, while receiving direct... ...Collaborate closely with Mechanical, Embedded, Software, Production...Full timeTemporary workPart timeInternshipWorldwide
$125k - $175k
...solutions that support our mission of advancing warfighter capabilities... ...and the right amount of engineering rigor? If so – we want to... ...hardware systems for mission-critical defense applications where... ...work cross-functionally with mechanical, systems, software, manufacturing...- ...defense-tech company with the mission of protecting service members... ...We’re looking for a Power Engineer II to contribute to the design... ...of power electronics systems critical to our aircraft. This role is... ...Embedded safety and protection mechanisms Design across power ranges...Full timeTemporary workPart timeWorldwide
- ...Fuse is seeking a Systems Test Engineer IV to lead integration,... ...Test Engineer IV transforms mission intent, architectural hypotheses... ...DRMs) by identifying mission-critical behaviors, operational stressors... ...and test are used as primary mechanisms for risk reduction and...Full time
- ...defense-tech company with the mission of protecting service members... ...and innovative thermal engineer looking to help develop state... ...solutions that meet mission-critical aerospace requirements. What... ...Required qualifications: B.S. in Mechanical Engineering, Aerospace...Full timeTemporary workPart timeWorldwide
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Mechanical Engineer - Mission Critical. Be the first to apply!
- mechanical design San Diego, CA
- mechanical inspector San Diego, CA
- mechanical solidworks San Diego, CA
- mechanical sales San Diego, CA
- mechanical foreman San Diego, CA
- entry level mechanical design San Diego, CA
- mechanical installation San Diego, CA
- mechanical commissioning San Diego, CA
- entry level hvac mechanical engineer
- total mechanical




