Senior Mechanical Engineering Tech I

Overview
Imagine shaping the future of technology by contributing to the design and construction of the world's most advanced semiconductor manufacturing facilities for industry giants. At SSOE, you won't just be executing tasks; you'll continuously expand your expertise by confronting diverse and complex technical challenges unique to this cutting‑edge sector, supported by access to advanced training and leading design tools. We foster your ambition with clear pathways for career progression, whether your aspiration is technical leadership, project management, or becoming a revered subject matter expert. All of this unfolds within a truly integrated, multidisciplinary team environment that champions knowledge sharing and innovation, backed by the stability and proven excellence of a well‑established firm renowned for its high‑tech facility design.
As a Senior Mechanical Engineer at SSOE, you will be a pivotal leader in the design, engineering, and delivery of highly complex and specialized mechanical systems. You will spearhead projects demanding innovative thinking, execution, and an understanding of advanced mechanical principles within contamination‑controlled environments. This role offers the unique opportunity to work on technically challenging projects, mentor developing engineers, and directly influence the success of our leading semiconductor clients and our firm's growth in this dynamic sector. This position is an onsite role that will require you to work onsite each day and be located in the N. Phoenix, AZ area. Remote or hybrid work arrangements for this role are not available.
AI and Innovation
At SSOE, we don’t just talk about the future, we build it. As a leader in industry AI adoption, we empower our team to work smarter by providing responsible access to the industry leading AI Large Language Models, vibe‑coding platforms, and securely integrating advanced tools into every role. From day one, you’ll receive the training and support needed to leverage AI as a core tool for enhancing productivity, sparking creativity, and streamlining complex workflows.
Responsibilities

Lead mechanical system design for semiconductor tool installations:
Develop utility matrices based on tool vendor requirements.
Design point‑of‑use (POU) connections for all mechanical utilities (PCW, exhaust, gases, drains).
Ensure designs meet stringent vibration, acoustic, and EMI/RFI criteria.

Lead the design, analysis, and specification of complex HVAC systems for semiconductor manufacturing environments.
Engineer critical process cooling and heating systems.
Design and oversee ultra‑pure water (UPW) and industrial water systems, including RO/DI water, process drains, and chemical delivery/drain systems.
Develop and detail specialized exhaust systems for hazardous production materials (HPMs).
Perform detailed thermodynamic, hydraulic, and psychrometric analyses to optimize system performance, energy efficiency, and operational stability.
Champion safety in design, ensuring compliance with all relevant codes, standards (e.g., ASME, ASHRAE, NFPA, SMACNA, SEMI standards), and client‑specific EHS requirements for HPMs.
Lead and participate in design reviews, HAZOP studies, and constructability reviews.
Drive interdisciplinary coordination with electrical, structural, process, chemical, controls, and architectural teams to ensure seamless integration of mechanical systems.
Conduct field verifications, site surveys, and as‑built documentation to assess existing conditions, identify design constraints, and support construction and commissioning phases.
Provide engineering support during construction, including RFI responses, submittal reviews, site inspections, and system start‑up and commissioning oversight.
Develop detailed sequence of operations (SOO) and contribute to control system narratives.
Serve as a technical authority and mentor in mechanical engineering, guiding junior engineers and designers, and fostering a culture of technical excellence and continuous improvement.
Qualifications
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Bachelor’s degree in Mechanical Engineering from an ABET‑accredited institution, which qualifies for licensure in the state of practice.
Active PE license in Arizona or evidence of ability to obtain by reciprocity within six months of hire; responsible charge of mechanical design and stamping authority required.
Demonstrated expertise in HVAC systems design including air handling units, VAV systems, chillers, boilers, pump hydraulics, exhaust ventilation, and wastewater discharge equipment.
Proven proficiency with AutoCAD and Revit for mechanical design and BIM coordination, including model‑based clash detection in Navisworks on projects exceeding 50,000 square feet or industrial facilities with multi‑system integration.
Demonstrated ability to interface with clients and contractors to define scope, lead technical discussions, and deliver electrical design solutions aligned with operational and safety requirements.
Comprehensive working knowledge of ASHRAE standards, NFPA 90A, and relevant California mechanical and fire codes.
Strong ability to communicate complex technical information clearly and concisely to clients, project managers, contractors, and cross‑discipline teams.
Demonstrated leadership in mentoring junior engineers or leading small project teams through complex electrical design challenges.
Salary Range: $130,000 - $160,000/year depending on location, education, depth of relevant experience. Opportunity for ample rewards, leadership incentive/bonus program, and ownership investment opportunities.
Benefits: Includes comprehensive health, dental, and vision insurance, life insurance, 401K retirement savings plan (with company matching), opportunities for professional development and training (including support for relevant licensure & certifications), and generous PTO & paid holidays.
Join SSOE where innovation meets mentorship through an integrated, multidisciplinary approach to delivering complex industrial projects worldwide. Here, you will collaborate with seasoned professionals across architecture, mechanical, process, and structural disciplines to create technically rigorous designs that shape critical manufacturing environments. Our culture of knowledge sharing, continuous improvement, and leadership development empowers you to grow your expertise and influence the future of advanced facility design. At SSOE, your contributions directly impact operational excellence, safety, and sustainability in sectors that demand precision and innovation every day.
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