Mechanical Engineer
AceStack LLC
Role: Mechanical Engineer Location: Irvine, CA FTE Only Job Description Must Have Technical/Functional Skills Hardware & System Design Skills Environmental Control Systems (ECS): Designing aircraft air cycle, vapor cycle, bleed air, or cabin pressure architectures. Component Sizing & Selection: Calculating specifications for valves, regulators, heat exchangers, actuators, compressors, and fans. Fluid & Gas Dynamics: Modeling pneumatic flow rates, routing ducting networks, and analyzing system pressure drops. Electro-Mechanical Integration: Interfacing mechanical hardware with basic electrical circuits, wiring harnesses, and feedback sensors. Analysis & Simulation Skills Thermodynamics & Heat Transfer: Performing manual thermal math or complex 3D heat-load calculations. Control Theory & Logic: Developing feedback control loops to actively regulate temperature, pressure, or airflow. Thermal Analysis Software: Utilizing specialized simulation tools like Thermal Desktop, Ansys Fluent, Flowmaster, or Simscape. CAD Modeling & Drafting: Generating production-ready 3D models and technical drawings using NX, CATIA, or SolidWorks. Testing & Compliance Skills Hardware Troubleshooting: Resolving mechanical failures during the physical assembly, functional testing, or component repair phases. Aerospace & Defense Standards: Aligning qualification test procedures with rigorous compliance benchmarks like MIL-STD-810 and DO-160. Test Plan Execution: Drafting test documentation, building test setups, and analyzing environmental test data. Core Skill Set to Look For ECS Subsystem Integration: Hands-on experience with aircraft or spacecraft bleed air, cabin pressurization, oxygen generation, or severe-environment ducting and layout. Thermal System Design & Analysis: Experience sizing heat exchangers, vapor cycle systems, cooling loops, or air cycle machines using software like Thermal Desktop, ANSYS Fluent, Flow master, or MATLAB/Simulink. Component Selection & Validation: Proven track record calculating fluid flow, pressure drop, and thermal loads to select or design valves, regulators, fans, or compressors. Industry Standards & Testing: Direct familiarity with aerospace/defense testing compliance, specifically DO-160, MIL-STD-810, or ARP862 for environmental control equipment. Cross-Functional & Control Logic: A strong understanding of structural interfaces, sensor integration, and basic control theory (e.g., feedback loops) to regulate temperatures and pressures. Technical Presentation & Leadership: Experience acting as a secondary project owner, leading small groups of drafters/designers, and presenting design reviews (PDR/CDR) to internal teams or customers. Able to handle ITAR data. EDUCATION AND EXPERIENCE: Bachelor's degree (B.S.M.E) from four-year College or University. Two to five years of experience with design, analysis and development of industrial equipment. Aerospace domain experience is a must. Knowledge of applied thermodynamics and mechanical design. Knowledge of drawing and drafting standards a plus. Capable of carrying out assignments concerned with mechanical equipment. Understanding of military specifications, environmental specifications, and test specifications desired. Hands-on test and hardware experience is required. Requires strong oral/written communication skills and must be capable of conducting effective oral presentations to customers. Roles & Responsibilities Organizational skills with the capability of working towards tight deadlines Able to work with demanding customer #J-18808-Ljbffr
$70k - $300k
...Mechanical Engineer Field AI is transforming how robots interact with the real world. We are building risk-aware, reliable, and field-ready AI systems that address the most complex challenges in robotics, unlocking the full potential of embodied intelligence. We go...SuggestedContract workRemote work$80k - $120k
...and scheduling the work internally. Initially, this person is given sales leads for some established customers. The Service Sales Engineer is also expected to develop new clients to attain sales goals. Supervises: N/A Essential Duties & Responsibilities Identify, sell...SuggestedTemporary workWork at officeMonday to FridayFlexible hours$130k - $200k
...A Day in Your Life at MKS: As a Principal Mechanical Engineer at Newport / MKS Instruments, you will partner with; Irvine Systems Engineering {Product Engineering, Test & Measurement, Project Management, and Product Marketing}, Systems Assembly, NPO {shaping and coating...SuggestedVisa sponsorshipWork visaRelocation package$129k - $171k
...computer vision, sensor fusion, and networking technology to the military in months, not years.ABOUT THE JOBAt Anduril, our Mechanical Engineers, Components and Propulsion are at the forefront of defense technology, crafting high-impact, cutting-edge propulsion systems...SuggestedFull timeWork experience placementImmediate start- ...in your community, but around the world.We believe building engineering is more than systems and structures, it’s about powering progress... ..., sustainability, and human experience. We bring together mechanical, electrical, structural, and civil engineering experts to solve...SuggestedContract work
$129k - $171k
...Mechanical Engineer, Space Costa Mesa, California, United States Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model...Full timeWork experience placement- ...SCIFs (Sensitive Compartmented Information Facilities), launcher systems, and other ruggedized expeditionary platforms. This Mechanical Engineer will be responsible for the design, integration, prototyping, testing, and production support of complex electromechanical...
$137.8k - $172.2k
...love of the outdoors and a desire to protect it for future generations. Role Summary Rivian is seeking a Staff Mechanical Design Engineer, Battery Analysis to join the Battery Analysis team within Energy Storage Systems. In this role, you will provide...Full timeContract workTemporary workPart timeLocal areaShift work$120k - $150k
...Mechanical Engineer Irvine, CA | Hybrid Schedule | Contract-to-Hire Design the Systems. Own the Work. Make an Impact. If you're tired of being the engineer who only reviews drawings, coordinates consultants, or manages projects from a distance, this opportunity...Permanent employmentContract workTemporary workImmediate start- ...Mechanical Engineer – Irvine, CA (Hybrid) We're hiring for a growing design-build firm known for large-scale commercial and industrial projects nationwide. This is a hybrid role based out of Irvine, CA. What you’ll do: Design HVAC systems, piping, equipment layouts, and...
$137.8k - $182.52k
...desire to protect it for future generations. Role Summary As a member of Rivian's Restraints team within the Interior Engineering team, you will play a key role in shaping innovation and impactful products from concept through volume production. Your...Full timeContract workTemporary workPart timeLocal areaShift work$146k - $194k
...computer vision, sensor fusion, and networking technology to the military in months, not years.ABOUT THE JOBAt Anduril, our Mechanical Engineers, Subsystem Integration and Test Engineers are at the forefront of defense technology, meticulously crafting high-impact, cutting...Full timeWork experience placementImmediate start$107.8k - $134.8k
...Assembly Analyze PCBs, ICs, and press-fit components for mechanical failure modes (deflection, temperature, contamination, humidity... ...Qualifications Bachelor's Degree in Mechanical Engineering or related technical field and 3+ years of experience, OR...Full timeContract workLocal area$105k - $155k
...for growth here. Together, let’s redefine what is possible in orbit and beyond!Terran Orbital is seeking an experienced Sr. Mechanical Engineer to join our dynamic team. Reporting to the Mechanical Engineering Manager, the Sr. Mechanical Engineer will will lead or contribute...Permanent employmentWork at officeLocal areaFlexible hours$80k - $140k
...support and sustainment of existing product lines. It combines hands-on engineering with cross-functional collaboration to drive innovation from concept through production. The position emphasizes mechanical design, prototyping, and testing of composite phenolic and...Permanent employmentFull timeFor contractorsWork at officeShift work$85k - $120k
...liquefied natural gas (LNG), liquefied hydrogen (LH2), and industrial gases industries. Applications include fueling stations, marine engines, peak shaving, power generation, virtual pipelines, carbon capture, geothermal power and well stimulation. We are a subsidiary of...Contract workWorldwideNight shift$70k - $110k
A leading engineering firm seeks an entry-level Mechanical Engineer to support the design and delivery of mechanical systems for healthcare facilities. Responsibilities include developing HVAC designs, conducting building surveys, and preparing technical documentation....Remote work$146k - $194k
...endurance, precision, and mission flexibility to our customers. These vehicles, such as Dive-XL and Copperhead, require Senior Mechanical Engineers with broad experience to develop and analyze technical solutions in a fast-paced environment to enable programmatic success....Full timeWork experience placementImmediate start- ...Senior Mechanical Engineer TRL11 is seeking a hands-on Senior Mechanical Engineer to own the mechanical development of space avionics and electro-optical imaging systems from initial requirements through production and product sustainment. This role will have broad...
$150k - $250k
...Sr. Mechanical Engineer Irvine, CA Aerospace is at a turning point — costs are rising, supply chains are strained, and old ways of building can't keep up. At Neon Aero, we're breaking that mold. We move fast, think big, and combine start-up agility with aerospace...$107.8k - $134.8k
...generations. Role Summary Join Rivian's Vehicle Hardware Engineering - Chassis - Product Development team as a key contributor in... ...our electric adventure vehicles to life. As a Senior Mechanical Design & Release Engineer, you'll be instrumental in the...Full timeContract workTemporary workPart timeWork experience placementLocal areaShift work$107.8k - $134.8k
...outdoors and a desire to protect it for future generations. Role Summary As a Lead Closures Engineer, you will be the driving force behind the sophisticated mechanisms and structures that define the touchpoints of a world-class vehicle. You'll own the entire...Full timeContract workTemporary workPart timeLocal areaShift work- Anduril Industries seeks a Battery Mechanical Engineer to own mechanical design, thermal management, and structural analysis for high‑voltage and energy storage modules. You will lead from concept to deployment, using NX/SolidWorks and FEA/CFD tools while collaborating...
$129k - $171k
Anduril in Costa Mesa, California is seeking a Mechanical Engineer for the Maneuver Dominance team. The role involves the development of aerial robotic systems and requires at least 3 years of mechanical design experience. Candidates should have skills in CAD and understanding...$137.8k - $175k
...As the Staff Body Closures Handle and Latch Design & Release Engineer, you will take full ownership of the end-to-end development, integration, and release of next-generation handle and latch mechanisms. Driving programs from early technology concepts through production...Full timeContract workTemporary workPart timeLocal areaShift work- ...change by solving the greatest challenge facing the hydrogen economy: safe and efficient hydrogen storage. We are looking for a Mechanical Engineer to help with developing the next generation solid-state hydrogen storage systems and associated hydrogen refueling/charging...Work experience placement
$129k - $171k
Anduril Industries is seeking a Mechanical Engineer to develop and integrate hardware on unmanned air vehicles. The role involves leading design reviews and ensuring high-performance mechanical systems that meet complex environmental demands. The position requires 5+ years...- Job Title: Mechanical Engineer Location: Irvine, CA (Onsite) Duration: 6+ Month Contract Overview: Seeking an experienced Mechanical Engineer to support the design, development, testing, and troubleshooting of military refrigeration and thermal management systems. This...Contract work
- ...Description Job Description Position Summary: H West Equipment Inc. currently has an opening for a environmental equipment sales engineer to support our sales coverage area of, California, Nevada, and Arizona. This position is responsible for providing exemplary...Contract work
$191k - $253k
...vision, sensor fusion, and networking technology to the military in months, not years. ABOUT THE TEAM Anduril is seeking a Staff Mechanical Engineer to join the Omen Team at our Costa Mesa HQ. Omen is Anduril’s hover‑to‑cruise autonomous air vehicle (AAV) that packs the...Full timeContract workWork experience placementImmediate startRemote workFlexible hours
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