Top Mechanical Engineering Jobs in Chicago, IL

Design and model heat exchanger equipment for refinery, petrochemical, gas, and renewable process technologies. Responsibilities include equipment selection, specification development, design optimization, field troubleshooting, technical presentations, and product improvement. The role contributes to internal engineering standards, calculation tools, and documentation while collaborating with process, equipment, project management, customers, contractors, and vendors. Travel up to 10% worldwide is required, with initial onsite work followed by a hybrid schedule.

Designs and coordinates mechanical systems across project phases, including HVAC, plumbing, and fire protection layouts, calculations, equipment sizing, controls, specifications, and code compliance. Performs QA/QC, reviews RFIs and submittals, verifies field conditions, supports construction observation, coordinates with consultants, participates in client and project meetings, tracks project hours, and mentors junior staff. The role requires independent technical ownership and collaboration within a hybrid AEC environment.

Researches and develops gas seals, wet seals, sealing systems, and related components. Performs mechanical analysis, FEA, prototype development, laboratory and rig testing, and validation. Correlates analytical and test results, investigates failures, documents engineering work, and drives design improvements. Collaborates cross-functionally to transition products into manufacturing while managing development milestones and supporting continuous improvement of engineering and testing processes.

Leads emerging technology development for power electronics and electromechanical systems. Designs, models, prototypes, tests, and validates mechanical systems, enclosures, packaging, actuation mechanisms, and power conversion technologies. Coordinates global multidisciplinary teams, universities, suppliers, customers, and business divisions; develops technology roadmaps, supports commercialization, communicates technical concepts, and advances product designs from concept through lab-validated prototypes.

Designs and documents ruggedized electronic equipment for military applications. Responsibilities include CAD modeling, complex assembly design, drafting, tolerance stack-ups, drawing creation, documentation updates, configuration control, and library part creation. The role collaborates with mechanical, electrical, and systems engineering teams and supports manufacturing-driven designs involving machining, welding, sheet metal, casting, and 3D printing. The position is full-time, on-site, and requires an active DoD Secret clearance and U.S. citizenship.

Leads mechanical engineering activities for power, energy, refining, and chemical industry EPC projects. Responsibilities include managing schedules and budgets, specifying and evaluating process equipment, reviewing vendor documents, performing equipment and piping calculations, specifying materials, conducting field surveys, coordinating project meetings, supervising engineers, mentoring staff, and supporting proposals and engineering standards. Requires extensive industry experience, strong communication skills, and willingness to travel between office and field environments.

Supports startup, testing, commissioning, troubleshooting, and performance verification of mechanical HVAC systems on design-build construction projects. The role coordinates with vendors, subcontractors, controls teams, and project staff; reviews installation readiness; executes checklists and functional tests; documents deficiencies and system performance; supports TAB, commissioning meetings, turnover, and project closeout while maintaining safety compliance.

Leads mechanical and structural integration for E-767 AWACS avionics, communications, and mission-system upgrades. Responsibilities include aircraft modification design, structural and stress analysis, CAD and engineering documentation, airworthiness certification, qualification activities, design reviews, testing, and on-site installation support. The role supervises engineering activities and collaborates with government customers, Boeing, subcontractors, and cross-functional teams. Experience with aircraft modifications, avionics integration, military airworthiness, radio systems, EMC/EMI, TEMPEST, and E3 requirements is required.

Mechanical Engineer who brings real-world product development and manufacturing expertise into an AI engineering collaboration platform. Responsibilities include validating product concepts, translating engineering workflows into requirements, supporting customer demos, reviewing CAD and design processes, and partnering with Product, Design, Engineering, Sales, and customers. The role requires expertise in design reviews, change management, supplier collaboration, and taking complex mechanical products from concept through production.

Designs water and wastewater systems, including pumping systems, process and mechanical piping, valves, and process equipment. Ensures projects are delivered on time, within budget, and to quality standards while communicating effectively with project teams and clients. Requires an engineering degree, 8+ years of technical experience, and Professional Engineer registration.

Designs and develops complex mechanical systems, components, and assemblies for mission-critical communications infrastructure. Responsibilities include 3D CAD modeling, tolerance analysis, FEA and mechanical testing, prototype and pilot-build support, drawing and bill-of-material release, supplier collaboration, manufacturing support, and technical documentation. The engineer manages concurrent projects, improves product development processes, and works cross-functionally with engineering, manufacturing, suppliers, and product teams.

Designs and develops mechanical products and systems for data center connectivity, power distribution, and cooling. Leads the full product lifecycle from requirements and concept generation through prototyping, testing, and manufacturing release. Conducts applied research, coordinates multidisciplinary engineering projects, prepares schedules and technical documentation, and applies expertise in plastic, metal, sheet metal, injection molding, stamping, CAD, and thermal analysis.

Leads mechanical product design and development for automotive shift selectors and related components from concept through production. Performs CAD design, modeling, tolerance and stress analysis, FEA, validation testing, documentation, and design reviews. Collaborates with customers, manufacturing, quality, suppliers, and global engineering teams to resolve technical issues and ensure manufacturability, regulatory compliance, and product quality. Provides technical guidance to other engineers and supports NPI, APQP, DFMEA, PFMEA, and production activities.

Performs piping flexibility and stress analysis, pipe support design, finite element analysis, and static equipment design for oil, gas, and LNG projects. Prepares calculations, drawings, specifications, bid evaluations, and technical documentation. Reviews supplier data, coordinates with multidisciplinary project teams, directs designers and drafters, and provides field verification and mechanical execution support.

Designs and manages mechanical engineering projects from conception through completion. Produces construction documents, plans, calculations, and reports for HVAC, plumbing, refrigeration, fire protection, and fuel systems. Conducts site investigations, coordinates multidisciplinary teams and subconsultants, supports clients, manages budgets and schedules, and assists with RFIs, addendums, and change orders. The role requires coordination with architects, engineers, and construction project managers.

Designs and coordinates electrical building systems, including power distribution, lighting, grounding, controls, and emergency power. Prepares calculations, construction documents, specifications, and code reviews; directs modeling and drafting; supports construction administration; reviews submittals; performs site visits; coordinates with multidisciplinary teams and clients; manages project sprint activities; and mentors technical staff while improving design standards and workflows.

Designs and implements mechanical retrofits, rebuilds, upgrades, and modernization solutions for packaging machinery, robotics, palletizers, and automated manufacturing systems. Responsibilities include field assessments, mechanical design, CAD documentation, troubleshooting integrated mechanical and controls systems, commissioning, root cause analysis, and technical support. Requires collaboration with customers, service teams, manufacturing, maintenance, and engineering groups. The role requires substantial travel to customer and manufacturing locations.

Designs and implements mechanical retrofits, rebuilds, upgrades, and modernization solutions for packaging machinery, robotics, material handling systems, and manufacturing equipment. Responsibilities include field assessments, mechanical design, engineering documentation, troubleshooting integrated mechanical and controls systems, commissioning, root cause analysis, and manufacturing support. The role requires collaboration with customers, field service, operations, maintenance, and engineering teams, plus frequent travel to customer and manufacturing sites.

Designs, operates, maintains, and improves process and facility water systems supporting accelerator infrastructure and ALS operations. Responsibilities include hydraulic and thermal engineering, equipment specification, water treatment, troubleshooting, preventive maintenance, project management, commissioning, documentation, safety compliance, and coordination with engineering, facilities, contractors, and operations teams. The role serves as the technical authority for reliable cooling and ultra-pure water systems in a high-availability scientific facility.

Design and optimize data center HVAC and heat-rejection systems, perform heat-load calculations and CFD airflow analysis, select and size cooling equipment, ensure redundancy and fault tolerance, coordinate with electrical/mechanical trades, and implement energy-efficiency and air-quality solutions for mission-critical data centers.

Develops mechanical concepts and prototypes for rheology and materials characterization products. Responsibilities include simulations, testing, risk mitigation, system integration, design reviews, product ideation, and comprehensive mechanical documentation. The role collaborates with multidisciplinary teams and applies expertise in mechanical engineering, materials science, thermal and structural analysis, controls, reliability, design for manufacturing, and fabrication.

Supports the design, implementation, installation, and commissioning of automated material handling systems. Responsibilities include mechanical design, feasibility assessments, vendor collaboration, project coordination, technical support, documentation, on-site testing and training, troubleshooting, and root cause analysis. The role works across projects involving components, conveyors, robotics, and other automated machinery, with travel required for installations and customer support.

Designs and implements automated material handling systems throughout their lifecycle, including concept development, detailed mechanical design, feasibility analysis, installation, commissioning, troubleshooting, testing, and training. The role manages multiple projects, creates technical documentation, supports business development, coordinates vendors, and performs root cause analysis. Requires collaboration with customers and onsite travel for installations and system support.

Leads the design and execution of complex mechanical, HVAC, plumbing, and specialty systems for institutional and healthcare facilities. Oversees design quality, construction documents, specifications, construction administration, project timelines, and coordination with multidisciplinary teams. Drives LEED certification, energy modeling, lifecycle cost analysis, and sustainable design compliance with federal regulations and applicable codes. Requires a mechanical engineering degree, professional engineering license, extensive MEP design experience, LEED certification, and proficiency with Revit, HAP, TRACE 3D Plus, and Bluebeam.

Leads mechanical engineering activities across design, procurement, installation, testing, commissioning, and handover. Reviews calculations, drawings, specifications, equipment selections, vendor documents, and technical deliverables. Coordinates multidisciplinary teams, supports procurement and site execution, ensures compliance with standards and safety requirements, resolves technical issues, monitors schedules, and mentors junior engineers.